ML19121A212

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Annual Radioactive Effluent Release Report, and Revision 24 to the Offsite Dose Calculation Manual
ML19121A212
Person / Time
Site: Browns Ferry  Tennessee Valley Authority icon.png
Issue date: 04/30/2019
From: Hughes D
Tennessee Valley Authority
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML19121A212 (408)
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Tennessee Valley Authority, Post Office Box 2000, Decatur, Alabama 35609-2000 April 30, 2019 10 CFR 50.4 10 CFR 50.36a 10 CFR 50 Appendix I ATTN : Document Control Desk U.S. Nuclear Regulatory Commission Washington , D.C. 20555-0001 Browns Ferry Nuclear Plant, Units 1, 2, and 3 Renewed Facility Operating License Nos. DPR-33, DPR-52, and DPR-68 NRG Docket Nos. 50-259, 50-260, and 50-296

Subject:

2018 Annual Radioactive Effluent Release Report, and Revision 24 to the Offsite Dose Calculation Manual.

In accordance with the Browns Ferry Nuclear Plant (BFN) , Units 1, 2, and 3, Technical Specification Section 5.6.3, the Tennessee Valley Authority is submitting the BFN Annual Radioactive Effluent Release Report for the period January through December 2018. This document is in conformance with Title 1O of the Code of Federal Regulations (10 CFR) 50.36a and 10 CFR 50, Appendix I, Section IV.B.1 . to Enclosure 1 documents deviations which have occurred from Offsite Dose Calculation Manual (ODCM) controls and surveillance requirements . Attachment 2 to provides information on radiological effluent instrumentation inoperable for greater than 30 days. During 2018, there was one revision to the ODCM that is being submitted with this report (Enclosure 2).

There are no new regulatory commitments contained in this letter. Should you have any questions concerning this submittal, please contact Jamie Paul at (256) 729-2636.

R~~

D. L. Hughes Site Vice President

U.S. Nuclear Regulatory Commission Page 2 April 30, 2019 : 2018 Annual Radioactive Effluent Release Report : Offsite Dose Calculation Manual, Revision 24 cc (w/ Enclosures):

NRC Regional Administrator - Region II NRC Senior Resident Inspector - Browns Ferry Nuclear Plant NRC Project Manager - Browns Ferry Nuclear Plant

ENCLOSURE 1 Browns Ferry Nuclear Plant Units 1, 2, and 3 2018 Annual Radioactive Effluent Release Report See Enclosed

Browns Ferry Nuclear Plant Tennessee Valley Authority Annual Radioactive Effluent Release Report 2018

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT TABLE OF CONTENTS Section Title Page Number Supplemental Information E-3 E-9 Gaseous Effluents E-10 E-17 Liquid Effluents E-18 E-20 Solid Waste E-21 E-27 Radiological Impact E-28 E-44 Meteorological Data E-45 E-168 - Deviations from ODCM Controls and Surveillance Requirements E-169 - Inoperable Radiological Effluent Instrumentation Report E-170 E-171 Groundwater Protection Program E-172 E-174 Tables Page Number Table 1A, Gaseous Effluents - Summation of All Releases E-10 Table 1B, Gaseous Effluents - Elevated Releases E-11 E-12 Table 1C, Gaseous Effluents - Ground Level Releases E-13 E-14 Table 1D, Gaseous Effluents - Mixed Mode Releases E-15 E-17 Table 2A, Liquid Effluents - Summation of All Releases E-18 Table 2B, Liquid Effluents E-19 E-20 Table 3, Solid Waste and Irradiated Fuel Shipments E-21 E-27 Table 4, Radiological Impact, Doses from Airborne Effluents E-35 E-38 Table 5, Radiological Impact, Doses from Liquid Effluents E-39 E-42 Table 5A, Radiological Impact, Total Doses from I-131 E-43 Water Ingestion Pathway Table 6, Radiological Impact, Total Dose from Fuel Cycle E-44 E-1

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT TABLE OF CONTENTS Tables Page Number Table 7A, Meteorological Data, Joint Frequency Distribution E-45 E-52 Ground Level Releases, First Quarter Table 7B, Meteorological Data, Joint Frequency Distribution E-53 E-60 Ground Level Releases, Second Quarter Table 7C, Meteorological Data, Joint Frequency Distribution E-61 E-68 Ground Level Releases, Third Quarter Table 7D, Meteorological Data, Joint Frequency Distribution E-69 E-76 Ground Level Releases, Fourth Quarter Table 8A, Meteorological Data, Joint Frequency Distribution E-77 E-91 Split Level Releases, First Quarter Table 8B, Meteorological Data, Joint Frequency Distribution E-92 E-106 Split Level Releases, Second Quarter Table 8C, Meteorological Data, Joint Frequency Distribution E-107 E-121 Split Level Releases, Third Quarter Table 8D. Meteorological Data, Joint Frequency Distribution E-122 E-136 Split Level Releases, Fourth Quarter Table 9A, Meteorological Data, Joint Frequency Distribution E-137 E-144 Elevated Releases, First Quarter Table 9B, Meteorological Data, Joint Frequency Distribution E-145 E-152 Elevated Level Releases, Second Quarter Table 9C, Meteorological Data, Joint Frequency Distribution E-153 E-160 Elevated Level Releases, Third Quarter Table 9D, Meteorological Data, Joint Frequency Distribution E-161 E-168 Elevated Level Releases, Fourth Quarter Table 10, Groundwater Data E-173 E-174 E-2

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Supplemental Information

1. Regulatory and BFN ODCM Limits
a. Fission and Activation Gases in Gaseous Effluent:

The release of fission and activation gases is regulated by the dose limits of Title 10 of the Code of Federal Regulations (10 CFR) 50 Appendix I and Browns Ferry Nuclear Plant (BFN) Offsite Dose Calculation Manual (ODCM). The air dose to areas at and beyond the site boundary due to noble gases released in gaseous effluents per unit shall be limited during any calendar quarter to 5 millirad (mrad) for gamma radiation and 10 mrad for beta radiation; and during any calendar year to 10 mrad for gamma radiation and 20 mrad for beta radiation.

b. Iodines and Particulates with Half-Lives Greater than Eight Days in Gaseous Effluents:

The release of iodines and particulates in gaseous effluent is regulated by the dose limits of 10 CFR 50 Appendix I and the BFN ODCM. The dose to a member of the public from radioiodines, radioactive materials in particulate form, and radionuclides other than noble gases with half-lives greater than eight days in gaseous effluent released per unit to areas at and beyond the site boundary shall be limited to any organ during any calendar quarter to 7.5 millirem (mrem), and during any calendar year to 15 mrem.

c. Liquid Effluents:

The release of radioactive liquid effluents is regulated by the dose limits of 10 CFR 50 Appendix I and the BFN ODCM. The doses or dose commitment to a member of the public from radioactive materials in liquid effluents released from each unit to unrestricted areas shall be limited during any calendar quarter to 1.5 mrem to the total body and 5 mrem to any organ and during any calendar year to 3 mrem to the total body and 10 mrem to any organ.

2. Limitation on Dose Rate
a. Fission and Activation Gases in Gaseous Effluent:
1. The instantaneous release rate of fission and activation gases is based on the dose rate limits of 10 CFR 20.1301 and the BFN ODCM. The dose rate at any time to areas at and beyond the site boundary due to noble gases released in gaseous effluents from the site shall be limited to 500 mrem per year to the total body and 3000 mrem per year to the skin.
2. The BFN ODCM Section 7.2 determines the maximum noble gas release rate.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Supplemental Information

2. Limitation on Dose Rate (Continued)
b. Iodines and Particulates with Half-Lives Greater than Eight Days in Gaseous Effluents:
1. The instantaneous release rate of particulates and iodines is regulated by the dose rate limits of the BFN ODCM. The dose rate at any time to areas at and beyond the site boundary, due to I-131, I-133, H-3, and particulates with half-lives greater than eight days in gaseous effluent released from the site, shall be limited to 1500 mrem per year to any organ.
2. The BFN ODCM Section 7.3 determines the maximum particulate and iodine dose rates.
c. Liquid Effluents:
1. The concentration of radionuclides in liquid effluents released at any time from the site to unrestricted areas shall be limited to the concentrations specified in 10 CFR 20.1001-20.2402, Appendix B, Table 2, Column 2 for radionuclides other than dissolved or entrained noble gases
2. For dissolved or entrained noble gases, the concentration shall be limited to 2E-4 µCi per milliliter (ml) total activity.
3. Average Energy The BFN ODCM limits the dose equivalent rates due to the release of noble gases to less than or equal to 500 mrem/year to the total body and less than or equal to 3000 mrem/year to the skin. The use of dose rate is in accordance with NUREG-0133, Preparation of Radiological Effluent Technical Specifications for Nuclear Power Plants.

Since the release rate is not used for effluent control, the average beta and gamma energies (E) for gaseous effluents discussed in Regulatory Guide 1.21, Measuring, Evaluation, and Reporting Radioactivity in Solid Wastes and Releases of Radioactive Materials in Liquid and Gaseous Effluents from Light-Water-Cooled Nuclear Power Plants, are not applicable and not included in this report.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Supplemental Information

4. Measurements and Approximations of Total Radioactivity
a. Fission and activation gases:
1. Noble gases in the building vent and stack (elevated) gaseous effluents are continuously monitored. The flow rate of the stack is continuously monitored and the building vent effluent flow rates are calculated once a shift based on the configuration of operating exhaust fans. The vent flow is calculated for each release. Gas grab samples of the stack are taken and analyzed weekly. Gas grab samples of in-service vents are taken and analyzed monthly. The specific noble gas activity concentrations and total volume of the gases are used to calculate the total Curies of noble gases released.
2. The tritium concentration is determined by the analysis of a monthly grab sample for each release point.
b. Iodines and Particulates:
1. Iodines and particulates are continuously sampled on impregnated charcoal filters and particulate filters, respectively. The charcoal and particulate samples are replaced at least weekly and analyzed to determine specific activity concentrations. The specific activity concentrations and vent flow rate data are used weekly to verify that release rate limits were not exceeded. The specific activity concentrations and total volume of gaseous effluent are used on a monthly basis to determine the total curies of each particulate and iodine released during the month.
2. The gross alpha concentration is determined by analysis of a monthly particulate filter composite sample, and strontium-89 and strontium-90 are determined by analysis of a quarterly particulate filter composite sample for each release point.
c. Carbon-14
1. Carbon-14 (C-14) production and gaseous waste effluent activity source term estimates were based on methodology provided in EPRI 1021106, Estimation of Carbon-14 in Nuclear Power Plant Gaseous Effluents, December 2010. C-14 gaseous activity and dose calculations are made using the following assumptions: (1) continuous release of the estimated C-14 generated for each unit during power operation based on the number of Effective Fuel Power Days (EFPD) for the period, (2) maximum C-14 activity from literature values cited in EPRI Report 1021106, and (3) typical fraction as carbon dioxide for gaseous releases from literature values also cited in EPRI Report 1021106.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Supplemental Information

4. Measurements and Approximations of Total Radioactivity (Continued)
d. Liquid effluents:
1. The gamma ray emitting radionuclide concentrations are determined for each batch by gamma ray spectroscopy analysis of a grab sample. The allowable release rate is calculated for each batch based upon the known dilution flow.

The flow rate of the liquid effluent is continuously monitored and the total volume released in each batch is determined. The total gamma activity released in each batch is determined by multiplying the radionuclide concentrations by the total volume discharged. The total gamma activity released during the month is then determined by summing the gamma activity content of each batch discharged during the month.

2. The gross alpha and tritium concentrations are measured on a monthly composite sample. The strontium-89, strontium-90, and iron-55 are measured on a quarterly composite sample.

The Radioactive Gaseous and Liquid Waste Monitoring Sampling and Analysis Program is specified in ODCM Sections 1/2.2.1 and 1/2.2.2. No liquid or gaseous concentration or dose limits were exceeded.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Supplemental Information

5. Batch Releases Quarter Quarter Quarter Quarter A. Liquid Units 1 2 3 4
1. Number of batches released Each 23 32 13 51
2. Total time for batches released Minutes 10,144 10,000 3,549.88 14,206
3. Maximum time period for a batch release Minutes 1,020 485 650 420
4. Average time period for a batch release Minutes 441 312.50 273.07 278.55
5. Minimum time period for a batch release Minutes 260 170 107 225
6. Average BFN beach flow during period of ft3/sec 70,008 48,331 37,782 80,678 release into the river stream B. Gaseous None E-7

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Supplemental Information

6. Abnormal Releases
a. Liquid
1. Number of releases: 4
2. Total activity released (Curies):

Destination Nuclide Quarter 1 Quarter 2 Quarter 3 Quarter 4 Leak to River H-3 2.56E-01 5.390E+00 8.170E-02 2.180E-01 F-18 2.24E-04 1.100E-01 Co-60 6.741E-08 Ru-106 4.190E-05 I-133 1.760E-04

b. Gaseous
1. Number of releases: 0
c. Summary of Abnormal/Unplanned Releases The release of radioactive material to the environment from BFN has been a small fraction of the 10 CFR 20 Appendix B and 10 CFR 50 Appendix I limits. There were no limits exceeded as specified in 10 CFR 20 Appendix B and 10 CFR 50 Appendix I.

Four abnormal liquid releases occurred in 2018.

1. Three of the abnormal releases were from the Unit 1, Unit 2, and Unit 3 Station Sumps. These releases occurred throughout 2018 and were the result of several identified sources including multiple steam leaks which occurred in the Steam Jet Air Ejector Rooms and Offgas Recombiner rooms. During second quarter 2018, a leak from the U3 Reactor Feed Pump filters was another contributor to Unit 2 and Unit 3 Station sumps (CR 1402671, 1419682).
2. A leak from Condensate Head Tank occurred January 1, 2018 due to tank level instrumentation freezing, which allowed the tank to overflow onto the reactor building roof. Due to the freezing weather conditions, most all the water had frozen atop the reactor building roof. An estimated 40 gallons had drained down the reactor building roof drains which ultimately drain to the Intake Channel (CR 1374607).

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Supplemental Information

7. Missed Compensatory Samples During the reporting period , January 1, 2018 through December 31, 2018, there was one missed compensatory sample.

The 1-RM-90-132D, Raw Cooling Water (RCW) Radiation Monitor, was inoperable due to low sample flow through the monitor (LCOT 1-090-ODCM-2018-0016), therefore chemistry sampled the Unit 1 RBCCW Heat Exchangers (HX) in service. One sample was missed from the A RBCCW HX due to a miscommunication between Operations to Chemistry (CR 1459430, 1459702). Chemistry sampled the 'B' and Spare RBCCW HX when the 'A' and 'B' RBCCW HXs were the two HXs in service. Samples prior to and after the missed sample were less than the minimum detectable concentration (MDC) for total gamma activity.

8. Changes to the Radwaste System and Changes to the Process Control Program In calendar year 2018, BFN had one permanent change to the Radwaste System and the Process Control Program.

BFN completed the installation of Ultrex Train A and removed the Thermex System under DCN 71436. Ultrex Train B is expected to be completed by July 2019.

9. Revisions to the Offsite Dose Calculation Manual (ODCM)

During 2018 there was one revision made to the Offsite Dose Calculation Manual (ODCM).

ODCM Revision 24, effective date of 1/30/2018, was made to the Liquids Section 6.5 and Gases Section 7.6.1 for the use of a cumulative quarterly dose normalized over 31 days methodology to allow for use of the OpenEMS software. The ODCM, Revision 24, will be submitted concurrent with this report.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT GASEOUS EFFLUENTS TABLE 1A Page 1 of 1 Gaseous Effluents - Summation of All Releases Error Units Quarter 1 Quarter 2 Quarter 3 Quarter 4  %

A. Fission and Activation Gases

1. Total Releases Curies ** ** ** ** 45
2. Average Release Rate for Period µCi/sec ** ** ** **
3. Percent of Applicable Limit  % **** **** **** ****

B. Iodines

1. Total Iodine-131 Curies 2.081E-03 2.307E-04 4.365E-04 5.310E-04 36
2. Average Release Rate for Period µCi/sec 2.676E-04 2.934E-05 5.491E-05 6.670E-05
3. Percent of Applicable Limit  % **** **** **** ****

C. Particulates

1. Particulates with half-lives

> eight days Curies 7.283E-02 1.861E-04 1.357E-04 1.700E-03 35

2. Average Release Rate for Period µCi/sec 9.366E-03 2.367E-05 1.708E-05 2.140E-04
3. Percent of Applicable Limit  % **** **** **** ****
4. Gross Alpha Radioactivity Curies ** 4.351E-07 ** **

D. Tritium

1. Total Release Curies 1.342E+02 1.005E+02 1.291E+02 8.690E+01 21
2. Average Release Rate for Period µCi/sec 1.726E+01 1.278E+01 1.624E+01 1.090E+01
3. Percent of Applicable Limit  % **** **** **** ****

E. Carbon-14***

1. Total Release Curies 8.102 9.243 9.725 7.594
2. Total as CO2 Curies 7.697 8.780 9.239 7.214
  • - Includes Activity from Abnormal Release
    • - Not Detected.
      • - Estimated using EPRI methodology provided in EPRI Report 1021106.
        • - Applicable Limits are expressed in terms of dose. See Radiological Impact Section.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT GASEOUS EFFLUENTS (Continuous Mode Only)

TABLE 1B Page 1 of 2 Gaseous Effluents - Elevated Releases CURIES Quarter 1 Quarter 2 Quarter 3 Quarter 4

1. Fission Gases Kr-85m ** ** ** **

Kr-85 ** ** ** **

Kr-87 ** ** ** **

Kr-88 ** ** ** **

Xe-133 ** ** ** **

Xe-135m ** ** ** **

Xe-135 ** ** ** **

Xe-138 ** ** ** **

Others (specify) ** ** ** **

Total for Period ** ** ** **

2. Iodines I-131 7.98E-05 1.27E-04 1.22E-04 1.41E-04 I-133 1.75E-04 3.75E-04 4.17E-04 2.69E-04 I-135 ** ** ** **

Total for Period 2.55E-04 5.02E-04 5.39E-04 4.10E-04

    • - Not Detected.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT GASEOUS EFFLUENTS (Continuous Mode Only)

TABLE 1B (Continued)

Page 2 of 2 Gaseous Effluents - Elevated Releases CURIES Quarter 1 Quarter 2 Quarter 3 Quarter 4

3. Particulates*

Sr-89 4.27E-06 1.16E-05 8.14E-06 1.26E-05 Sr-90 ** ** ** **

Cs-134 ** ** ** **

Cs-137 ** ** ** **

Cs-138 ** 3.23E-03 9.94E-04 **

Ba-140 1.14E-05 5.00E-06 ** 1.95E-05 La-140 3.50E-06 1.21E-06 1.36E-06 1.83E-05 Y-91m 9.46E-05 1.46E-04 1.19E-04 **

Co-60 6.70E-06 9.09E-06 ** 2.37E-06 Ba-139 1.05E-02 1.68E-02 1.21E-02 **

Co-58 ** ** ** **

Cr-51 6.39E-06 ** ** **

Sb-125 ** ** ** 5.16E-06 Au-199 6.41E-05 7.59E-05 6.84E-05 1.09E-04 Rb-89 ** 9.02E-03 ** **

Total for Period* 1.07E-02 2.93E-02 1.32E-02 1.67E-04

4. Tritium 2.74E+00 5.13E+00 9.08E+00 6.33E+00
5. Carbon-14*** 7.697 8.780 9.239 7.214
  • - Includes all nuclides, even those with less than an eight day half-life.
    • - Not Detected.
      • - Estimated using EPRI methodology provided in EPRI Report 1021106.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT GASEOUS EFFLUENTS (Continuous Mode Only)

TABLE 1C Page 1 of 2 Gaseous Effluents - Ground Level Releases CURIES Quarter 1 Quarter 2 Quarter 3 Quarter 4

1. Fission Gases Kr-85m ** ** ** **

Kr-85 ** ** ** **

Kr-87 ** ** ** **

Kr-88 ** ** ** **

Xe-133 ** ** ** **

Xe-135m ** ** ** **

Xe-135 ** ** ** **

Xe-138 ** ** ** **

Others (specify) ** ** ** **

Total for Period ** ** ** **

2. Iodines I-131 4.19E-04 7.39E-06 1.50E-05 1.24E-05 I-133 1.65E-03 1.43E-05 8.50E-05 1.61E-05 I-135 ** ** ** **

Total for Period 2.07E-03 2.17E-05 9.99E-05 2.85E-05

    • - Not Detected.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT GASEOUS EFFLUENTS (Continuous Mode Only)

TABLE 1C (Continued)

Page 2 of 2 Gaseous Effluents - Ground Level Releases CURIES Quarter 1 Quarter 2 Quarter 3 Quarter 4

3. Particulates*

Sr-89 ** ** ** **

Sr-90 ** ** ** **

Cs-134 ** ** ** **

Cs-137 ** ** ** **

Ba-140 ** ** ** **

La-140 ** ** ** **

Co-60 3.57E-05 ** ** 4.12E-06 Co-58 4.20E-06 2.18E-07 ** **

Y-91m 3.33E-05 ** ** **

Ba-139 4.96E-04 1.18E-04 ** **

Cr-51 ** 5.33E-06 ** **

TC-99M 5.99E-07 ** ** **

Mo-99 6.14E-07 ** ** **

Ag-110M 1.76E-06 ** ** **

Zn-65 3.54E-06 ** ** **

Mn-64 1.37E-05 ** ** **

Na-24 1.41E-05 ** ** **

Cu-64 ** ** ** 7.75E-04 Total for Period* 6.03E-04 1.23E-04 0.00E+00 7.80E-04 Gross Alpha ** ** ** **

Tritium 4.78E+01 1.86E+01 2.31E+01 2.69E+01

  • - Include all nuclides even those with less than an eight day half-life.
    • - Not Detected.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT GASEOUS EFFLUENTS (Continuous Mode Only)

TABLE 1D Page 1 of 3 Gaseous Effluents - Mixed Mode Releases*

CURIES Quarter 1 Quarter 2 Quarter 3 Quarter 4

1. Fission Gases Kr-85m ** ** ** **

Kr-85 ** ** ** **

Kr-87 ** ** ** **

Kr-88 ** ** ** **

Xe-133 ** ** ** **

Xe-135m ** ** ** **

Xe-135 ** ** ** **

Xe-138 ** ** ** **

Others (specify) ** ** ** **

Total for Period ** ** ** **

2. Iodines I-131 3.50E-04 9.65E-05 2.99E-04 6.61E-06 I-132 6.38E-04 ** ** **

I-133 2.32E-03 7.96E-04 1.85E-03 8.56E-05 Total for Period 3.31E-03 8.93E-04 2.15E-03 9.22E-05

  • - The Reactor Building and Radwaste Building are treated as split-level releases.
    • - Not Detected.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT GASEOUS EFFLUENTS (Continuous Mode Only)

TABLE 1D (Continued)

Page 2 of 3 Gaseous Effluents - Mixed Mode Releases*

CURIES Quarter 1 Quarter 2 Quarter 3 Quarter 4

3. Particulates***

Sr-89 3.46E-06 1.36E-05 ** **

Sr-90 ** ** ** **

Cs-134 ** ** ** **

Cs-137 ** 2.53E-06 ** **

Ba-140 1.69E-04 ** ** **

La-140 1.02E-04 ** ** **

Ag-110m 1.75E-04 ** ** 9.73E-05 Na-24 2.55E-03 ** 3.76E-04 **

Mn-54 6.10E-04 6.18E-06 ** 4.81E-05 Cr-51 6.20E-04 ** ** 1.63E-04 Co-58 3.06E-04 3.65E-06 5.85E-06 3.42E-05 Co-60 1.36E-03 5.30E-05 4.16E-05 3.16E-04 Zn-65 7.32E-04 ** ** 5.06E-05 Y-91m 1.67E-03 ** 4.00E-05 **

Sr-91 1.88E-03 ** ** **

Sr-92 3.00E-03 ** ** **

Ba-139 7.77E-03 ** ** **

Au-199 2.38E-05 ** ** **

Nb-95 ** ** 1.15E-05 2.23E-05 Zr-95 ** ** ** 1.49E-05 E-16

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT GASEOUS EFFLUENTS (Continuous Mode Only)

TABLE 1D (Continued)

Page 3 of 3 Gaseous Effluents - Mixed Mode Releases*

CURIES Quarter 1 Quarter 2 Quarter 3 Quarter 4

3. Particulates***

Tc-104 6.87E-02 ** ** **

Mo-99 6.02E-05 ** ** 4.84E-06 Sb-124 9.21E-06 ** ** **

Nb-97 1.07E-05 ** ** **

Tc-99M 5.88E-05 ** ** **

Zn-69M 7.58E-05 1.65E-05 ** **

Mn-56 5.02E-03 ** ** **

Se-75 ** ** ** 1.80E-08 Total for Period*** 9.49E-02 9.55E-05 4.76E-04 7.51E-04 Gross Alpha ** 4.35E-07 ** **

Tritium 8.37E+01 7.68E+01 9.69E+01 5.36E+01

  • - The Reactor Building and Radwaste Building are treated as split-level releases.
    • - Not Detected.
      • - Includes all nuclides, even those with less than an eight day half-life.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT LIQUID EFFLUENTS TABLE 2A Page 1 of 1 Liquid Effluents - Summation of All Releases Units Quarter 1 Quarter 2 Quarter 3 Quarter 4 Error %

A. Fission and Activation Products (Does not include tritium, gases, alpha)

1. Total Release Curies 1.430E-02** 1.120E-01** 7.400E-03 2.680E-01 9 Average Diluted Concentration
2. Released During the Period µCi/ml 4.727E-10** 4.139E-09** 9.177E-10 3.783E-09
3. Percent of Applicable Limit  % *** *** *** ***

B. Tritium

1. Total Releases Curies 1.640E+01** 1.600E+01** 3.462E-00** 3.810E+01** 6 Average Diluted Concentration
2. Released During Period µCi/ml 5.417E-07** 5.910E-07** 4.293E-07** 5.378E-07**
3. Percent of Applicable Limit  % *** *** *** ***

C. Dissolved and Entrained Noble Gases

1. Total Releases Curies 5.754E-05 3.938E-05 3.439E-06 1.667E-04 8 Average Diluted Concentration
2. Released During Period µCi/ml 1.901E-12 1.455E-12 4.265E-13 2.352E-12
3. Percent of Applicable Limit  % *** *** *** ***

D. Gross Alpha Radioactivity

1. Total Releases Curies * * *
  • 48 Average Diluted Concentration
2. Released During Period µCi/ml * * *
  • E.

Volume of Liquid Waste to Discharge 4

Canal (Prior to dilution) Liters 2.370E+06 3.208E+06 6.837E+05 4.456E+06 3 F. Volume of Dilution Water for Period Liters 3.027E+10 2.706E+10 8.063E+09 7.083E+10 10 G. Total CCW Gigagal 2.140E+02 2.590E+02 2.800E+02 2.350E+02

  • - Not Detected.
    • - Includes activity from abnormal releases. Dilution flow was not determined for all abnormal releases.
      • - The applicable limit is expressed in terms of dose. See Radiological Impact Report.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT LIQUID EFFLUENTS TABLE 2B Liquid Effluents

1. Fission and Activation Products Isotope in Curies Quarter 1 Quarter 2 Quarter 3 Quarter 4 Sr-89 * *
  • Cs-134 5.88E-06
  • 2.37E-06
  • Cs-137 1.75E-03 6.76E-04 7.03E-04 8.90E-03 I-131 5.30E-06 * *
  • Co-58 4.53E-04 3.73E-05 2.83E-05 2.88E-02 Co-60 5.96E-03 7.82E-04 3.45E-03 8.02E-02 Fe-55 *
  • 2.43E-03 4.86E-03 Zn-65 4.10E-04 2.88E-05
  • 7.68E-03 Mn-54 7.09E-04 1.49E-04 7.70E-04 5.64E-02 Cr-51 6.98E-04 *
  • 1.54E-03 Zr-95 9.82E-06 * *
  • Te-99m * * *
  • Ba-140 * * *
  • La-140 * * *
  • Ce-141 2.07E-06 * *
  • F-18 1.66E-03 1.10E-01 1.53E-06 4.73e-04 Ag-110m 7.21E-04 1.56E-05
  • 5.43E-02 Na-24 3.82E-05 *
  • 1.66E-02 Sb-124 2.89E-04 *
  • 2.29E-03 Sr-92 6.48E-06 *
  • 2.28E-03 Zn-69m
  • 1.11E-06 *
  • As-76 *
  • 3.81E-06 6.13E-04 Nb-97
  • 7.39E-06 4.18E-06 3.22E-06 I-133 3.78E-05 1.76E-04 *
  • Y-91M 5.26E-06 *
  • 1.45E-05 Zr-97 2.15E-05 *
  • 2.70E-03 E-19

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT LIQUID EFFLUENTS TABLE 2B Liquid Effluents

1. Fission and Activation Products (Continued)

Isotope in Curies Quarter 1 Quarter 2 Quarter 3 Quarter 4 Ru-103 * *

  • 1.70E-05 Ru-106 4.19E-05 * *
  • Total for period 1.43E-02 1.12E-01 7.40E-03 2.68E-01
2. Dissolved and Entrained Gases Isotope in Curies Quarter 1 Quarter 2 Quarter 3 Quarter 4 Xe-133 1.68E-05 2.62E-05
  • 9.22E-05 Xe-135 4.01E-05 1.32E-05
  • 7.45E-05 Kr-85M 7.24E-07 * *
  • Ar-41 *
  • 3.44E-06
  • Total for Period 5.75E-05 3.94E-05 3.44E-06 1.67E-04
  • - Not Detected.

E-20

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Solid Waste TABLE 3 Page 1 of 7 Solid Waste and Irradiated Fuel Shipments A. Solid Waste Shipped Offsite for Burial or Disposal (not Irradiated Fuel)

1. Type of Waste Unit Jan - Jun 2018 July-Dec 2018 Error %
a. Spent resins, filters, filter sludge, m3 evaporator bottoms, etc. 5.07E+01 1.05E+01 +/- 25%

Ci 4.31E+01 3.04E+02 +/-25%

b. Dry compressible waste, m3 contaminated equipment, etc. 1.98E+03 1.51E+03 +/- 25%

Ci 2.65E+00 4.97E+00 +/- 25%

c. Irradiated Components, Control Rod blades & LPRMs with fission m3 chambers 0.00E+00 0.00E+00 +/- 25%

Ci 0.00E+00 0.00E+00 +/- 25%

d. Other - Combined Packages m3 0.00E+00 0.00E+00 +/- 25%

Ci 0.00E+00 0.00E+00 +/- 25%

E-21

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Solid Waste TABLE 3 (Continued)

Page 2 of 7 Solid Waste and Irradiated Fuel Shipment

2. Estimate of Major Nuclide Composition
a. Spent resins, filters, filter sludge, evaporator bottoms, etc.

Nuclide Percentage Curies

1) H-3 0.00E+00 0.00E+00
2) C-14 1.20E-03 4.16E-03
3) CR-51 6.05E-02 2.10E-01
4) MN-54 6.06E+00 2.10E+01
5) FE-55 1.94E+01 6.74E+01
6) FE-59 8.64E-03 3.00E-02
7) CO-57 3.49E-02 1.21E-01
8) CO-58 6.78E-01 2.36E+00
9) CO-60 5.97E+01 2.07E+02
10) NI-63 6.00E-01 2.08E+00
11) ZN-65 6.15E+00 2.14E+01
12) SR-89 1.73E-03 5.99E-03
13) SR-90 4.83E-03 1.68E-02
14) NB-95 1.00E-01 3.49E-01
15) TC-99 9.46E-02 3.28E-01
16) Ru-106 9.34E-01 3.24E+00
17) AG-110M 3.29E+00 1.14E+01
18) SB-124 4.95E-03 1.72E-02
19) CS-134 5.55E-02 1.93E-01
20) CS-137 2.65E+00 9.20E+00
21) CE-144 2.05E-01 7.13E-01
22) Am-241 2.69E-05 9.33E-05
23) Cm-242 1.00E-05 3.48E-05
24) Cm-243 8.97E-06 3.11E-05 E-22

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Solid Waste TABLE 3 (Continued)

Page 3 of 7 Solid Waste and Irradiated Fuel Shipments

2. Estimate of Major Nuclide Composition (Continued)
b. Dry, Compressible Waste, Contaminated Equipment, etc.

Nuclide Percentage Curies

1) H-3 4.02E-03 3.06E-04
2) C-14 3.69E-03 2.81E-04
3) CR-51 2.14E-01 1.63E-02
4) MN-54 3.76E+00 2.86E-01
5) FE-55 1.25E+01 9.55E-01
6) CO-57 7.80E-03 5.94E-04
7) CO-58 3.77E-01 2.87E-02
8) CO-60 6.70E+01 5.10E+00
9) NI-63 7.06E-01 5.38E-02
10) ZN-65 2.83E+00 2.15E-01
11) SR-89 9.53E-04 7.26E-05
12) SR-90 7.54E-03 5.74E-04
13) ZR-95 8.48E-03 6.46E-04
14) NB-95 2.50E-02 1.90E-03
15) Tc-99 2.97E-02 2.26E-03
16) RU-106 2.09E-01 1.59E-02
17) AG-110M 1.87E+00 1.42E-01
18) SB-124 3.66E-03 2.79E-04
19) SB-125 2.91E-01 2.22E-02
20) CS-134 3.78E-01 2.88E-02
21) CS-137 9.68E+00 7.37E-01
22) CE-144 8.97E-02 6.83E-03
23) PU-238 2.10E-06 1.60E-07
24) Pu-239 8.54E-07 6.50E-08
25) PU-241 5.55E-05 4.23E-06
26) AM-241 5.41E-06 4.12E-07
27) CM-242 3.49E-06 2.66E-07 E-23

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Solid Waste TABLE 3 (Continued)

Page 4 of 7 Solid Waste and Irradiated Fuel Shipments

2. Estimate of Major Nuclide Composition (Continued)
c. Irradiated Components, Control Rods, LPRMs with fission chambers Nuclide Percentage Curies None E-24

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Solid Waste TABLE 3 (Continued)

Page 5 of 7 Solid Waste and Irradiated Fuel Shipments

2. Estimate of Major Nuclide Composition (Continued) d Other (Combined Packages)

Nuclide Percentage Curies None E-25

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Solid Waste TABLE 3 (Continued)

Page 6 of 7 Solid Waste and Irradiated Fuel Shipments

3. Solid Waste Disposition Number of Mode of Transportation Destination Shipments Alaron Nuclear Services 1 Hittman Transport Services (2138 State Route 18)

Energy Solutions LLC. (CLIVE) 12 Hittman Transport Services 31 Hittman Transport Services Energy Solutions Services (Bear Creek) 3 Hittman Transport Services Energy Solutions Inc. (Gallaher Road) 4 Specialty Transport, Inc. Omega Technical Services Inc.

Unitech Services Group, Inc.

5 Specialty Transport, Inc.

(Oak Ridge Service Center)

Unitech Services Group, Inc.

1 CAST Transportation (Oak Ridge Service Center)

Unitech Services Group, Inc.

3 Interstate Ventures (Oak Ridge Service Center) 2 Tennessee Valley Authority Energy Solutions Services (Bear Creek) 2 Tennessee Valley Authority TOXCO, Inc.

1 Interstate Ventures Omega Technical Services Inc.

47 Interstate Ventures TOXCO, Inc.

1 Interstate Ventures Energy Solutions Inc. (Gallaher Road) 2 Interstate Ventures PERMAFIX (1940 NW 67th Place) 10 Interstate Ventures WCS TSD Facility (TSD Facility)

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Solid Waste TABLE 3 (Continued)

Page 7 of 7 Solid Waste and Irradiated Fuel Shipments B. Irradiated Fuel Shipments (Disposition)

Number of Shipments Mode of Transportation Destination 0

0 0 E-27

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT

1. Introduction Potential doses to the maximum exposed individual and the population around Browns Ferry Nuclear Plant (BFN) are calculated for each quarter as required in Section 5.2 of the Offsite Dose Calculation Manual (ODCM). The methodology used to estimate dose for determining plant releases for the reporting period is specified in Sections 6 and 7 of the ODCM. Dispersion of radioactive effluents in the environment is estimated using meteorological data and river flow measured during the period. In this report, the doses resulting from releases are described and compared to limits established for BFN.
2. Dose Limits The ODCM specifies limits for the release of radioactive effluents, as well as limits for doses to the general public from the release of radioactive effluents. These limits are set well below the Technical Specification limits which govern the concentrations of radioactivity and doses permissible in unrestricted areas. This ensures that radioactive effluent releases are As Low As Reasonably Achievable.

The air dose limits in areas at and beyond the Site Boundary due to noble gases released in gaseous effluents per unit are:

5 mrad per quarter and 10 mrad per year for gamma radiation.

- and -

10 mrad per quarter and 20 mrad per year for beta radiation.

The dose limits to a member of the public in an unrestricted area from radioiodines, radioactive materials in particulate form, and radionuclides other than noble gases with half-lives > 8 days released in gaseous effluents for each unit are:

7.5 mrem per quarter and 15 mrem per year to any organ.

The dose or dose commitment to a member of the public from radioactive material in liquid effluents released to unrestricted areas are:

1.5 mrem per quarter and 3 mrem per year to the total body,

- and -

5 mrem per quarter and 10 mrem per year to any organ.

The limit for the total effective dose equivalent to an individual member of the public inside the site boundary is:

100 mrem per year.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT

2. Dose Limits (Continued)

The Environmental Protection Agency limits for total dose to any member of the public in the vicinity of a nuclear power plant, established in the Environmental Dose Standard of 40 CFR 190, are:

25 mrem per year to the whole body, 75 mrem per year to the thyroid,

- and -

25 mrem per year to any other organ.

3. Dose Calculations Estimated doses to members of the public are determined using computer models (the Gaseous Effluent Licensing Code, and the Quarterly Water Dose Assessment Code (QWATA)).

These models are based on guidance provided by the Nuclear Regulatory Commission (NRC) for determining the potential dose to individuals and populations living in the vicinity of the plant.

The area around the plant is analyzed to determine the pathways through which the public may receive a dose. The doses calculated are a representation of the dose to a maximum exposed individual. Some of the factors used in these calculations (such as ingestion rates) are maximum values to ensure conservative reporting data. The values chosen will tend to overestimate the dose. The expected dose to actual individuals is lower. The calculated doses are presented in Tables 4, 5, and 6.

4. Doses From Airborne Effluents For airborne effluents, members of the public can be exposed to radiation from several sources:

direct radiation from the radioactivity in the air, direct radiation from radioactivity deposited on the ground, inhalation of airborne radioactivity, ingestion of vegetation which contains radioactivity deposited from the atmosphere, and ingestion of milk and beef which contains radioactivity deposited from the atmosphere onto vegetation and subsequently consumed by animals.

a. Airborne Release Points There are four monitored release points from BFN: the turbine building, the radwaste building, the reactor building, and the stack.

Releases from the turbine building are considered ground-level releases. The ground-level Joint Frequency Distribution (JFD) is derived from wind speeds and directions measured 10.5 meters above the ground and from the vertical temperature difference between 10.03 and 45.30 meters, and are presented for each quarter in the 2018 Meteorological Data Tables 7A, 7B, 7C, and 7D.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT

4. Doses From Airborne Effluents (Continued)
a. Airborne Release Points (Continued)

Releases from the radwaste and reactor buildings are considered split-level releases.

Portions of the release are treated as ground-level while other portions are considered elevated depending on the ratio of the vertical exit velocity to the horizontal wind speed.

The split-level dispersion approach is implemented using a model that requires two complete quarterly JFDs for each effluent vent, one for the ground-level releases and one for the elevated releases. The ground-level portion of the split-level JFD is based on wind speeds and directions measured 10.5 meters above ground-level and from the vertical temperature difference between 10.03 and 45.30 meters. The elevated portion of the split-level JFD is based on wind speeds and direction measurements at the 45.74 meter level and the vertical temperature difference between 10.03 and 89.59 meters. Both of these JFDs are given for each quarter in the 2018 Meteorological Data Tables 8A, 8B, 8C, and 8D.

Releases from the stack are considered to be elevated releases. The JFDs for elevated releases are based on wind directions and wind speeds measured at 90.29 meters and the vertical temperature difference between 10.03 and 89.59 meters, and are given for each quarter in the 2018 Meteorological Data Tables 9A, 9B, 9C, 9D.

b. Meteorological Data Meteorological variables at BFN are measured continuously. Measurements collected include wind speed and wind direction at heights of 10.5, 45.74, and 90.29 meters above the ground, and temperature at heights of 10.03, 45.30, and 89.59 meters above the ground. Quarterly JFDs are calculated for each release point using the appropriate levels of meteorological data. A quarterly JFD gives the percentage of the time that the wind is blowing out of a particular upwind compass sector in a particular range of wind speeds for a given stability class A through G. The wind speeds are divided into nine wind speed ranges. Calms are distributed by direction in proportion to the distribution of noncalm wind directions less than 1.6 m/s (3.5 mph). Stability classes are determined from the vertical temperature difference between two measurement levels.

The generally open terrain around BFN does not cause any significant effects on the transport and dispersion of gaseous effluents from the plant. Within 30 kilometers of BFN, the terrain is mostly gently rolling hills (30-60 meters). Between 30 and 80 kilometers, the hills become larger to the north and south and mountainous to the east and northeast. The Tennessee River/Wheeler Lake may have a minor effect on transport and dispersion in the immediate vicinity of BFN during periods of winds with a southerly component, overcast skies, and relatively high wind speeds. Also, the lower layer (10-45 meters) stability class tends to be more stable. However, during this infrequent condition, dose estimates will be conservative.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT

4. Doses From Airborne Effluents (Continued)
c. External Exposure Dose Dose calculated for maximum external air dose (gamma-air and beta-air) are made for points at and beyond the unrestricted area boundary as described in the BFN ODCM. The highest of these doses is then selected.
d. Submersion Dose External doses to the skin and total body, due to submersion in a cloud of noble gases, are calculated for the nearest residence in each sector. The residence with the highest dose is then selected from all sectors.
e. Organ Dose Dose to an organ due to releases of airborne effluents are estimated for the inhalation, ground contamination, and ingestion pathways. The ingestion pathway is further divided into three possible contributing pathways: ingestion of cow/goat milk, ingestion of beef, and ingestion of vegetables. Doses from applicable pathways are calculated for each receptor location identified in the most recent land use survey. To determine the maximum organ dose, the doses from the pathways are summed for each receptor. However, for the ingestion dose, only those pathways that exist for each receptor are considered in the sum, e.g., milk ingestion doses are included only for locations where milk was consumed without commercial preparation and vegetable ingestion is included only for those locations where a garden was identified. To conservatively account for beef ingestion, a beef ingestion dose equal to that for the highest unrestricted area boundary location is added to each identified receptor. For ground contamination, the dose added to the organ dose being calculated is the total body dose calculated for that location, i.e., it is assumed that the dose to an individual organ is equal to the total body dose.

The maximum organ dose, thyroid dose, and total body dose from airborne effluents are presented in Table 4.

5. Doses From Liquid Effluents For liquid effluents, the public can be exposed to radiation from three sources: the ingestion of water from the Tennessee River, the ingestion of fish caught in the Tennessee River, and direct exposure from radioactive material deposited on the river shoreline sediment (recreation).

The concentration of radionuclides in the Tennessee River is calculated by a computer model which uses measured hydraulic data downstream of BFN. Parameters used to determine the doses are based on guidance given by the NRC for maximum ingestion rates, exposure times, etc.

E-31

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT

5. Doses From Liquid Effluents (Continued)

Wherever possible, parameters used in the dose calculation are site specific. The models that are used to estimate doses, as well as the parameters input to the models, are described in detail in the BFN ODCM.

a. Liquid Release Points and River Data Radionuclide concentrations in the Tennessee River are calculated assuming that releases in liquid effluents are continuous. When necessary, liquid releases from BFN, located at Tennessee River Mile 294, are made through diffusers which extend into the Tennessee River. It is assumed that releases to the river through these diffusers will initially be entrained in one-fifth of the water which flows past the plant. The QWATA code makes the assumption that this mixing condition holds true until the water is completely mixed at the first downstream dam (Wheeler Dam), at Tennessee River Mile 283.

Doses are calculated for locations within a 50 mile radius downstream of the plant site. The maximum potential recreation dose is calculated for a location immediately downstream from the plants release point. The maximum exposed individual dose from ingestion of fish is assumed to be that calculated for the consumption of fish caught anywhere between the plant and the first downstream dam. The maximum exposed individual dose from drinking water is assumed to be that calculated at the nearest downstream public water supply

[West Morgan - East Lawrence (WMEL)]. This could be interpreted as indicating that the maximum exposed individual, as assumed for liquid releases from BFN, is an individual who obtains all of his drinking water at WMEL, consumes fish caught from the Tennessee River between BFN and Wheeler Dam, and spends 500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> per year on the shoreline just downstream of the plants release point. Doses calculated for the maximum exposed individual due to liquid effluents for each quarter in the period are presented in Table 5 along with the average river flows past the plant site for the periods.

6. Population Doses Population doses due to airborne effluents are calculated for people living within a 50-mile radius of the plant site. Doses from external pathways and inhalation are based on the 50-mile human population distribution. Ingestion population doses are calculated assuming that each individual consumed milk, vegetables, and meat produced within the sector in which the individual resides.

Population doses due to liquid effluents are calculated for the entire downstream Tennessee River population. Water ingestion population doses are calculated using actual population figures for downstream public water supplies. Fish ingestion population doses are calculated assuming that all sport fish caught in the Tennessee River are consumed by the Tennessee River population. Recreation population doses are calculated using historical recreational data on the number of shoreline visits at downstream locations.

Population doses calculated for airborne and liquid effluents are presented in Tables 4 and 5.

E-32

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT

7. Offsite Direct Radiation Dose External gamma radiation levels were measured by environmental dosimeters deployed around BFN as part of the offsite Radiological Environmental Monitoring Program (REMP).

The results for environmental dosimeter measurements are normalized to a standard quarter (91 days). The monitoring locations are grouped according to the distance from the plant. The first group consists of all monitoring points within 2 miles of the plant. The second group is made up of all locations greater than 2 miles from the plant. Past data have shown that the average results from the locations more than 2 miles from the plant are essentially the same. Therefore, for purposes of this report, monitoring points 2 miles or less from the plant are identified as onsite stations and locations greater than 2 mils are considered offsite stations. The quarterly gamma radiation levels determined from these dosimeters deployed around BFN in 2018 averaged approximately 19.15 mrem/quarter at onsite stations and approximately 16.20 mrem/quarter at offsite stations. The onsite stations are approximately 3 mrem/quarter higher than at offsite stations. This equates to 11.9 mrem/year detected at the onsite locations. This difference is consistent with levels measured for preoperational and construction phases at BFN where the average radiation levels onsite were generally 2-6 mrem/quarter higher than the levels offsite. This may be attributed to natural variations in environmental radiation levels, earth moving activities onsite, the mass of concrete employed in the construction of the plants, or other undetermined influences. Fluctuations in natural background dose rates and in dosimeter readings tend to mask any small increments which may be due to plant operations. Thus, there was no identifiable increase in dose rate levels attributable to direct radiation from plant equipment and/or gaseous effluents.

8. Dose To A Member Of The Public Inside The Site Boundary Pursuant to ODCM Section 7.7.5, a review was performed to determine the highest dose to a member of the public in the site boundary. The dose to a member of the public consists of the sum of dose commitments from effluent releases as well as any direct radiation dose.

The gaseous effluent dose commitment is negligible compared to the direct radiation dose.

The direct radiation dose was determined from area environmental dosimeters located onsite. It consisted of gamma dose from the plume, ground contamination, and from equipment sources (i.e., tanks, turbine shine, radioactive material storage areas, etc.). The critical location was determined to be an Optically Stimulated Luminescence (OSL) dosimeter near the Livewell Center (Training Center). The direct radiation dose at the Livewell Center, accounting for background and occupancy, was approximately 4.22 mrem/quarter during 2018.

The total annual dose commitment to a member of the public for 2018 was 16.88 mrem. It can be concluded that the dose limit for a member of the public at the site boundary as specified in 10 CFR 20.1301 was not exceeded.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT

9. Total Dose To determine compliance with 40 CFR 190, annual total dose contributions to the maximum exposed individual from BFN radioactive effluents and all other nearby uranium fuel cycle sources are considered.

The annual dose to any organ other than the thyroid for the maximum exposed individual is conservatively calculated by summing the following doses: the total body air submersion dose for each quarter, the critical organ dose (for any organ other than the thyroid) from airborne effluents for each quarter from ground contamination, inhalation and ingestion, the total body dose from liquid effluents for each quarter, the maximum organ dose (for any organ other than the thyroid) from liquid effluents for each quarter, and any identifiable increase in direct radiation dose levels as measured by the REMP. This dose is compared to the 40 CFR 190 limit for total body or any organ dose (other than the thyroid) to determine compliance.

The annual thyroid dose to the maximum exposed individual is conservatively estimated by summing the following doses: the total body air submersion dose for each quarter, the thyroid dose from airborne effluents for each quarter, the total body dose from liquid effluents for each quarter, the thyroid dose from liquid effluents for each quarter, and any identifiable increase in direct radiation dose levels as measured by the REMP. This dose is compared to the 40 CFR 190 limit for thyroid dose to determine compliance.

Total dose from the fuel cycle is presented in Table 6.

E-34

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT TABLE 4 Page 1 of 4 Doses from Airborne Effluents First Quarter Individual Doses Pathway Dose Quarterly Percent of Location Limit Limit External NNW/1650 Gamma Air 1.43E-10 mrad 5 mrad <1%

meters NNW/1650 Beta Air 4.39E-10 mrad 10 mrad <1%

meters Submersion 3.39E-03 NNW/1650 Total Body NA NA mrem meters 3.98E-03 NNW/1650 Skin NA NA mrem meters Organ Doses 3.27E-02 NNW/4350 Child/Bone 7.5 mrem <1%

mrem meters 3.17E-02 N/2540 Child/Thyroid 7.5 mrem <1%

mrem meters Child/Total 2.57E-02 NNW/4350 7.5 mrem <1%

Body mrem meters Population Doses Total Body Dose 1.68E-01 man-rem Maximum Organ Dose (organ) 4.66E-01 man-rem (Bone)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT TABLE 4 (Continued)

Page 2 of 4 Doses from Airborne Effluents Second Quarter Individual Doses Pathway Dose Quarterly Percent of Location Limit Limit External Gamma Air 9.59E-12 mrad 5 mrad <1% N/5700 meters Beta Air 2.93E-11 mrad 10 mrad <1% N/5700 meters Submersion Total Body 9.73E-05 mrad NA NA E/1410 meters Skin 1.14E-04 mrad NA NA E/1410 meters Organ Doses 2.66E-02 <1%

Child/Bone 7.5 mrem NNE/5980 meters mrem 1.48E-02 <1%

Child/Thyroid 7.5 mrem N/2540 meters mrem Child/Total 1.45E-02 <1%

7.5 mrem N/2540 meters Body mrem Population Doses Total Body Dose 2.19E-01 man-rem Maximum Organ Dose (organ) 7.78E-01 man-rem (Bone)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT TABLE 4 (Continued)

Page 3 of 4 Doses from Airborne Effluents Third Quarter Individual Doses Pathway Dose Quarterly Percent of Location Limit Limit External W/2550 Gamma Air 1.79E-11 mrad 5 mrad <1%

meters W/2550 Beta Air 5.48E-11 mrad 10 mrad <1%

meters Submersion NNW/1650 Total Body 9.18E-05 mrad NA NA meters NNW/1650 Skin 1.08E-04 mrad NA NA meters Organ Doses 3.04E-02 NNW/4350 Child/Bone 7.5 mrem <1%

mrem meters 1.35E-02 Child/Thyroid 7.5 mrem <1% N/2540 meters mrem Child/Total 1.28E-02 7.5 mrem <1% N/2540 meters Body mrem Population Doses Total Body Dose 2.07E-01 man-rem Maximum Organ Dose (organ) 7.51E-01 man-rem (Bone)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT TABLE 4 (Continued)

Page 4 of 4 Doses from Airborne Effluents Fourth Quarter Individual Doses Pathway Dose Quarterly Percent of Location Limit Limit External Gamma Air 2.00E-12 mrad 5 mrad <1% NW/2275 meters Beta Air 6.12E-12 mrad 10 mrad <1% NW/2275 meters Submersion Total Body 5.72E-04 mrad NA NA ESE/1750 meters Skin 6.73E-04 mrad NA NA ESE/1750 meters Organ Doses 1.90E-02 WNW/8100 Child/Bone 7.5 mrem <1%

mrem meters 8.83E-03 Child/Thyroid 7.5 mrem <1% E/1530 meters mrem Child/Total 8.89E-03 7.5 mrem <1% E/1530 meters Body mrem Population Doses Total Body Dose 1.49E-01 man-rem Maximum Organ Dose (organ) 5.04E-01 man-rem (Bone)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT Table 5 Page 1 of 4 Doses from Liquid Effluents First Quarter*

Individual Doses (mrem)

Age Group Organ Dose Dose Quarterly Percent of Pathway Limit Limit Adult Total Body Fish Ingestion 2.8E-04 Recreation 1.6E-04 Water 7.2E-05 Ingestion Total 5.1E-04 1.5 mrem <1%

Child Bone Fish Ingestion 4.1E-04 Recreation 1.6E-04 Water 1.1E-04 Ingestion Total 6.8E-04 5 mrem <1%

Child Thyroid Fish Ingestion 1.5E-06 Recreation 1.6E-04 Water 9.1E-05 Ingestion Total 2.5E-04 5 mrem <1%

Average River Flow past BFN (cubic feet per second): 70,008 Population Doses Total Body Dose 1.9E-02 man-rem Maximum Organ Dose (organ) 2.0E-02 man-rem (Bone)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

  • Includes dose from abnormal releases.

E-39

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT Table 5 (Continued)

Page 2 of 4 Doses from Liquid Effluents Second Quarter*

Individual Doses (mrem)

Age Group Organ Dose Dose Quarterly Percent of Pathway Limit Limit Adult Total Body Fish Ingestion 1.5E-04 Recreation 3.7E-05 Water 9.7E-05 Ingestion Total 2.8E-04 1.5 mrem <1%

Child Bone Fish Ingestion 2.3E-04 Recreation 3.7E-05 Water 1.4E-04 Ingestion Total 4.1E-04 5 mrem <1%

Child Thyroid Fish Ingestion 1.8E-06 Recreation 3.7E-05 Water 1.3E-04 Ingestion Total 1.7E-04 5 mrem <1%

Average River Flow past BFN (cubic feet per second): 48,331 Population Doses Total Body Dose 6.8E-03 man-rem Maximum Organ Dose (organ) 7.3E-03 man-rem (Bone)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

  • Includes dose from abnormal releases.

E-40

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT Table 5 (Continued)

Page 3 of 4 Doses from Liquid Effluents Third Quarter*

Individual Doses (mrem)

Age Group Organ Dose Dose Quarterly Percent of Pathway Limit Limit Adult Total Body Fish Ingestion 2.0E-04 Recreation 1.6E-04 Water Ingestion 3.1E-05 Total 3.9E-04 1.5 mrem <1%

Child Bone Fish Ingestion 3.0E-04 Recreation 1.6E-04 Water Ingestion 4.8E-05 Total 5.1E-04 5 mrem <1%

Child Thyroid Fish Ingestion 4.4E-07 Recreation 1.6E-04 Water Ingestion 3.5E-05 Total 2.0E-04 5 mrem <1%

Average River Flow past BFN (cubic feet per second): 37,782 Population Doses Total Body Dose 1.9E-02 man-rem Maximum Organ Dose (organ) 2.0E-02 man-rem (Bone)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

  • Includes dose from abnormal releases.

E-41

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT Table 5 (Continued)

Page 4 of 4 Doses from Liquid Effluents Fourth Quarter*

Individual Doses (mrem)

Age Group Organ Dose Dose Quarterly Percent of Pathway Limit Limit Adult Total Body Fish Ingestion 1.3E-03 Recreation 1.9E-03 Water 1.7E-04 Ingestion Total 3.4E-03 1.5 mrem <1%

Adult Liver Fish Ingestion 2.2E-03 Recreation 1.9E-03 Water 1.9E-04 Ingestion Total 4.3E-03 5 mrem <1%

Child Thyroid Fish Ingestion 2.5E-06 Recreation 1.9E-03 Water 1.8E-04 Ingestion Total 2.1E-03 5 mrem <1%

Average Riverflow past BFN (cubic feet per second): 80,678 Population Doses Total Body Dose 2.2E-01 man-rem Maximum Organ Dose (organ) 2.2E-01 man-rem (Liver)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

  • Includes dose from abnormal releases.

E-42

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT Table 5A Page 1 of 1 Total Dose from I-131 Water Ingestion Pathway Quarter 1 2 3 4 Totals I-131 Ci 5.3E-06 0 0 0 5.3E-06 Infant/Thyroid (mrem) 1.1E-06 0 0 0 1.1E-06 Population/Thyroid (mrem) 8.0E-06 0 0 0 8.0E-06 Doses from I-131 Water Ingestion Pathway The REMP requirements as specified in Table 3.12-1 from NUREG 1302, Offsite Dose Calculation Manual Guidance: Standard Radiological Effluent Controls for Boiling Water Reactors, dated April 1991, requires an I-131 specific analysis for drinking water pathway samples if the annual dose from I-131 is greater than 1 mrem. In order to evaluate the need for implementation of this additional analysis, the drinking water pathway dose from I-131 to the maximum organ and age group was calculated. Based on Table 5A, the performance of the I-131 specific analysis is not required for BFN REMP drinking water samples.

E-43

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT RADIOLOGICAL IMPACT Table 6 Page 1 of 1 Total Dose from Fuel Cycle First Second Third Fourth Dose Quarter Quarter Quarter Quarter Total Body or any Organ (except thyroid)

Total body air submersion 3.39E-03 9.73E-05 9.18E-05 5.72E-04 Critical organ dose (air) 3.27E-02 2.66E-02 3.04E-02 1.90E-02 Total body dose (liquid) 5.10E-04 2.90E-04 4.00E-04 3.40E-03 Maximum organ dose (liquid) 6.80E-04 4.10E-04 5.20E-04 4.30E-03 Direct Radiation Dose 0.0E+00 0.0E+00 0.0E+00 0.0E+00 Total 3.73E-02 2.74E-02 3.14E-02 2.73E-02 Cumulative Total Dose (mrem) 1.23E-01 (Total body or any other organ)

Annual Dose Limit 2.5E+01 (mrem)

< 1%

Percent of Limit Thyroid Dose (mrem)

Total body air submersion 3.39E-03 9.73E-05 9.18E-05 5.72E-04 Thyroid dose (airborne) 3.17E-02 1.48E-02 1.35E-02 8.83E-03 Total body dose (liquid) 5.10E-04 2.90E-04 4.00E-04 3.40E-03 Thyroid dose (liquid) 2.50E-04 1.70E-04 2.00E-04 2.10E-03 Direct Radiation Dose 0.0E+00 0.0E+00 0.0E+00 0.0E+00 Total 3.59E-02 1.54E-02 1.42E-02 1.49E-02 Cumulative Total Dose 8.04E-02 (Thyroid) mrem Annual Dose Limit 7.5E+01 (mrem)

Percent of Limit < 1%

E-44

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT BROWNS FERRY NUCLEAR PLANT 2018 METEOROLOGICAL DATA TABLE 7A JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR GROUND LEVEL RELEASES FIRST QUARTER E-45

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.382 0.000 0.000 0.000 0.382 NNE 0.000 0.000 0.000 0.000 0.048 0.191 0.000 0.000 0.000 0.239 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.239 0.525 0.287 0.048 0.000 0.000 0.000 1.098 SSE 0.000 0.000 0.382 0.334 0.000 0.000 0.000 0.000 0.000 0.716 S 0.000 0.000 0.048 0.191 0.048 0.000 0.000 0.000 0.000 0.287 SSW 0.000 0.000 0.000 0.143 0.000 0.000 0.000 0.000 0.000 0.143 SW 0.000 0.000 0.000 0.191 0.000 0.000 0.000 0.000 0.000 0.191 WSW 0.000 0.000 0.000 0.048 0.048 0.000 0.000 0.000 0.000 0.096 W 0.000 0.000 0.000 0.000 0.048 0.191 0.000 0.000 0.000 0.239 WNW 0.000 0.000 0.000 0.000 0.096 0.764 0.191 0.000 0.000 1.051 NW 0.000 0.000 0.000 0.000 0.048 0.478 0.382 0.000 0.000 0.907 NNW 0.000 0.000 0.000 0.000 0.000 0.287 0.382 0.000 0.000 0.669 SUBTOTAL 0.000 0.000 0.669 1.433 0.621 2.340 0.955 0.000 0.000 6.017 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2095 TOTAL HOURS OF STABILITY CLASS A 126 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 126 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2094 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/05/03 MEAN WIND SPEED = 8.14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-46

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.048 0.143 0.191 0.000 0.000 0.000 0.382 NNE 0.000 0.000 0.000 0.048 0.096 0.048 0.000 0.000 0.000 0.191 NE 0.000 0.000 0.000 0.048 0.096 0.143 0.000 0.000 0.000 0.287 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.048 SE 0.000 0.000 0.191 0.382 0.096 0.048 0.000 0.000 0.000 0.716 SSE 0.000 0.000 0.143 0.096 0.000 0.000 0.000 0.000 0.000 0.239 S 0.000 0.000 0.000 0.096 0.000 0.000 0.000 0.000 0.000 0.096 SSW 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.048 SW 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.048 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.048 WNW 0.000 0.000 0.000 0.000 0.000 0.096 0.048 0.000 0.000 0.143 NW 0.000 0.000 0.000 0.000 0.096 0.191 0.143 0.000 0.000 0.430 NNW 0.000 0.000 0.000 0.048 0.096 0.287 0.048 0.000 0.000 0.478 SUBTOTAL 0.000 0.000 0.334 0.907 0.669 1.003 0.239 0.000 0.000 3.152 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2095 TOTAL HOURS OF STABILITY CLASS B 66 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 66 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2094 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/05/03 MEAN WIND SPEED = 6.99 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-47

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.048 0.000 0.096 0.000 0.000 0.000 0.143 NNE 0.000 0.000 0.000 0.143 0.287 0.239 0.000 0.000 0.000 0.669 NE 0.000 0.000 0.000 0.096 0.334 0.143 0.000 0.000 0.000 0.573 ENE 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.048 E 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.048 ESE 0.000 0.000 0.143 0.096 0.000 0.000 0.000 0.000 0.000 0.239 SE 0.000 0.000 0.143 0.573 0.096 0.000 0.000 0.000 0.000 0.812 SSE 0.000 0.000 0.287 0.048 0.000 0.000 0.000 0.000 0.000 0.334 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.096 0.096 0.000 0.000 0.000 0.000 0.000 0.191 SW 0.000 0.000 0.143 0.000 0.000 0.000 0.000 0.000 0.000 0.143 WSW 0.000 0.000 0.048 0.048 0.048 0.000 0.000 0.000 0.000 0.143 W 0.000 0.000 0.000 0.000 0.000 0.096 0.000 0.000 0.000 0.096 WNW 0.000 0.000 0.000 0.000 0.048 0.430 0.191 0.000 0.000 0.669 NW 0.000 0.000 0.000 0.048 0.096 0.096 0.239 0.000 0.000 0.478 NNW 0.000 0.000 0.000 0.000 0.143 0.239 0.048 0.000 0.000 0.430 SUBTOTAL 0.000 0.000 0.860 1.289 1.051 1.337 0.478 0.000 0.000 5.014 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2095 TOTAL HOURS OF STABILITY CLASS C 105 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 105 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2094 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/05/03 MEAN WIND SPEED = 6.87 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-48

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.191 0.239 0.860 1.480 0.000 0.000 0.000 2.770 NNE 0.000 0.000 0.382 0.573 1.098 0.430 0.000 0.000 0.000 2.483 NE 0.000 0.000 0.382 0.764 0.287 0.191 0.000 0.000 0.000 1.624 ENE 0.000 0.000 0.239 0.573 0.287 0.048 0.000 0.000 0.000 1.146 E 0.000 0.000 0.716 0.096 0.048 0.000 0.000 0.000 0.000 0.860 ESE 0.000 0.000 0.382 0.907 0.287 0.000 0.000 0.000 0.000 1.576 SE 0.000 0.000 0.764 0.764 0.239 0.000 0.000 0.000 0.000 1.767 SSE 0.000 0.000 0.955 0.191 0.000 0.000 0.000 0.000 0.000 1.146 S 0.000 0.000 0.287 0.573 0.048 0.000 0.000 0.000 0.000 0.907 SSW 0.000 0.000 0.334 0.143 0.048 0.000 0.000 0.000 0.000 0.525 SW 0.000 0.048 0.191 0.191 0.048 0.000 0.000 0.000 0.000 0.478 WSW 0.000 0.000 0.239 0.143 0.000 0.096 0.000 0.000 0.000 0.478 W 0.000 0.000 0.287 0.334 0.287 0.191 0.000 0.000 0.000 1.098 WNW 0.000 0.048 0.096 0.239 0.621 1.098 0.334 0.048 0.000 2.483 NW 0.000 0.000 0.000 0.382 0.239 1.528 2.006 0.143 0.000 4.298 NNW 0.000 0.000 0.239 0.287 0.478 2.627 0.573 0.000 0.000 4.202 SUBTOTAL 0.000 0.096 5.683 6.399 4.871 7.689 2.913 0.191 0.000 27.841 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2095 TOTAL HOURS OF STABILITY CLASS D 584 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 583 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2094 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/05/03 MEAN WIND SPEED = 6.96 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-49

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.096 1.051 0.669 0.478 0.048 0.048 0.000 0.000 2.388 NNE 0.000 0.000 0.478 1.194 0.764 0.048 0.000 0.000 0.000 2.483 NE 0.000 0.048 0.573 0.812 0.478 0.000 0.000 0.000 0.000 1.910 ENE 0.000 0.096 0.525 0.382 0.000 0.000 0.000 0.000 0.000 1.003 E 0.000 0.048 0.525 0.716 0.000 0.000 0.000 0.000 0.000 1.289 ESE 0.000 0.143 0.716 1.480 0.334 0.000 0.000 0.000 0.000 2.674 SE 0.000 0.143 1.480 1.385 0.382 0.000 0.000 0.000 0.000 3.391 SSE 0.000 0.191 1.480 0.191 0.000 0.000 0.000 0.000 0.000 1.862 S 0.000 0.143 0.764 1.194 0.478 0.096 0.000 0.000 0.000 2.674 SSW 0.000 0.096 0.334 0.860 0.287 0.000 0.000 0.000 0.000 1.576 SW 0.000 0.000 0.525 0.287 0.000 0.000 0.000 0.000 0.000 0.812 WSW 0.000 0.096 0.478 0.478 0.191 0.143 0.000 0.000 0.000 1.385 W 0.000 0.000 0.525 0.382 0.096 0.239 0.000 0.000 0.000 1.242 WNW 0.000 0.000 0.048 0.143 0.048 0.239 0.096 0.000 0.000 0.573 NW 0.000 0.000 0.239 0.478 0.621 1.003 0.096 0.000 0.000 2.436 NNW 0.000 0.000 0.287 1.051 1.003 0.716 0.000 0.000 0.000 3.056 SUBTOTAL 0.000 1.098 10.029 11.700 5.158 2.531 0.239 0.000 0.000 30.755 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2095 TOTAL HOURS OF STABILITY CLASS E 644 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 644 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2094 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/05/03 MEAN WIND SPEED = 4.45 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-50

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.096 0.716 0.143 0.000 0.000 0.000 0.000 0.000 0.955 NNE 0.000 0.000 0.669 0.382 0.000 0.000 0.000 0.000 0.000 1.051 NE 0.000 0.191 0.191 0.048 0.048 0.000 0.000 0.000 0.000 0.478 ENE 0.000 0.000 0.096 0.048 0.000 0.000 0.000 0.000 0.000 0.143 E 0.000 0.143 0.573 0.143 0.000 0.000 0.000 0.000 0.000 0.860 ESE 0.000 0.191 1.098 0.239 0.000 0.000 0.000 0.000 0.000 1.528 SE 0.000 0.382 1.289 0.430 0.000 0.000 0.000 0.000 0.000 2.101 SSE 0.000 0.143 2.865 0.525 0.000 0.000 0.000 0.000 0.000 3.534 S 0.000 0.143 1.098 1.528 0.382 0.000 0.000 0.000 0.000 3.152 SSW 0.000 0.000 0.287 0.573 0.048 0.000 0.000 0.000 0.000 0.907 SW 0.000 0.096 0.096 0.000 0.000 0.000 0.000 0.000 0.000 0.191 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.048 WNW 0.000 0.000 0.096 0.000 0.000 0.000 0.000 0.000 0.000 0.096 NW 0.000 0.096 0.191 0.334 0.048 0.000 0.000 0.000 0.000 0.669 NNW 0.000 0.048 0.382 0.716 0.048 0.000 0.000 0.000 0.000 1.194 SUBTOTAL 0.000 1.528 9.694 5.110 0.573 0.000 0.000 0.000 0.000 16.905 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2095 TOTAL HOURS OF STABILITY CLASS F 354 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 354 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2094 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/05/03 MEAN WIND SPEED = 3.04 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-51

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.002 0.048 0.334 0.000 0.000 0.000 0.000 0.000 0.000 0.384 NNE 0.003 0.048 0.430 0.048 0.000 0.000 0.000 0.000 0.000 0.528 NE 0.001 0.048 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.096 ENE 0.003 0.143 0.382 0.000 0.000 0.000 0.000 0.000 0.000 0.528 E 0.001 0.048 0.096 0.000 0.000 0.000 0.000 0.000 0.000 0.144 ESE 0.001 0.143 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.192 SE 0.007 0.382 0.907 0.525 0.000 0.000 0.000 0.000 0.000 1.822 SSE 0.023 0.430 3.868 0.191 0.000 0.000 0.000 0.000 0.000 4.512 S 0.005 0.048 0.907 0.382 0.000 0.000 0.000 0.000 0.000 1.342 SSW 0.001 0.096 0.000 0.096 0.000 0.000 0.000 0.000 0.000 0.192 SW 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.048 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.048 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.096 NNW 0.002 0.143 0.287 0.000 0.000 0.000 0.000 0.000 0.000 0.432 SUBTOTAL 0.048 1.624 7.307 1.337 0.000 0.000 0.000 0.000 0.000 10.315 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2095 TOTAL HOURS OF STABILITY CLASS G 216 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 216 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2094 TOTAL HOURS CALM 1 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/05/03 MEAN WIND SPEED = 2.35 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-52

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT BROWNS FERRY NUCLEAR PLANT 2018 METEOROLOGICAL DATA TABLE 7B JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR GROUND LEVEL RELEASES SECOND QUARTER E-53

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.057 0.000 0.000 0.000 0.057 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.341 0.114 0.000 0.000 0.000 0.000 0.455 SE 0.000 0.000 0.511 0.568 0.057 0.000 0.000 0.000 0.000 1.136 SSE 0.000 0.000 1.250 0.114 0.000 0.000 0.000 0.000 0.000 1.364 S 0.000 0.000 0.739 0.284 0.000 0.000 0.000 0.000 0.000 1.023 SSW 0.000 0.000 0.568 0.227 0.000 0.000 0.000 0.000 0.000 0.795 SW 0.000 0.000 0.170 0.170 0.000 0.000 0.000 0.000 0.000 0.341 WSW 0.000 0.000 0.170 0.284 0.114 0.000 0.000 0.000 0.000 0.568 W 0.000 0.000 0.000 0.114 0.000 0.000 0.000 0.000 0.000 0.114 WNW 0.000 0.000 0.000 0.000 0.000 0.114 0.000 0.000 0.000 0.114 NW 0.000 0.000 0.000 0.000 0.000 0.057 0.000 0.000 0.000 0.057 NNW 0.000 0.000 0.000 0.000 0.000 0.170 0.000 0.000 0.000 0.170 SUBTOTAL 0.000 0.000 3.409 2.102 0.284 0.398 0.000 0.000 0.000 6.193 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 1760 TOTAL HOURS OF STABILITY CLASS A 109 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 109 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1760 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/08/07 MEAN WIND SPEED = 3.96 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-54

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.057 0.057 0.057 0.000 0.000 0.000 0.170 NNE 0.000 0.000 0.000 0.000 0.057 0.057 0.000 0.000 0.000 0.114 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.114 0.057 0.000 0.000 0.000 0.000 0.170 SE 0.000 0.000 0.455 0.000 0.000 0.000 0.000 0.000 0.000 0.455 SSE 0.000 0.000 0.341 0.057 0.000 0.000 0.000 0.000 0.000 0.398 S 0.000 0.000 0.795 0.057 0.000 0.000 0.000 0.000 0.000 0.852 SSW 0.000 0.000 0.341 0.170 0.000 0.000 0.000 0.000 0.000 0.511 SW 0.000 0.000 0.398 0.170 0.000 0.000 0.000 0.000 0.000 0.568 WSW 0.000 0.000 0.000 0.227 0.000 0.000 0.000 0.000 0.000 0.227 W 0.000 0.000 0.000 0.284 0.398 0.227 0.000 0.000 0.000 0.909 WNW 0.000 0.000 0.000 0.000 0.000 0.227 0.000 0.000 0.000 0.227 NW 0.000 0.000 0.000 0.057 0.000 0.284 0.000 0.000 0.000 0.341 NNW 0.000 0.000 0.000 0.000 0.000 0.398 0.000 0.000 0.000 0.398 SUBTOTAL 0.000 0.000 2.330 1.193 0.568 1.250 0.000 0.000 0.000 5.341 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 1760 TOTAL HOURS OF STABILITY CLASS B 94 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 94 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1760 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/08/07 MEAN WIND SPEED = 5.08 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-55

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.114 0.057 0.057 0.000 0.000 0.000 0.227 NNE 0.000 0.000 0.000 0.000 0.000 0.057 0.000 0.000 0.000 0.057 NE 0.000 0.000 0.000 0.057 0.000 0.114 0.000 0.000 0.000 0.170 ENE 0.000 0.000 0.000 0.000 0.057 0.000 0.000 0.000 0.000 0.057 E 0.000 0.000 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.057 ESE 0.000 0.000 0.000 0.057 0.000 0.000 0.000 0.000 0.000 0.057 SE 0.000 0.000 0.341 0.000 0.000 0.000 0.000 0.000 0.000 0.341 SSE 0.000 0.000 0.114 0.000 0.000 0.000 0.000 0.000 0.000 0.114 S 0.000 0.000 0.739 0.057 0.000 0.000 0.000 0.000 0.000 0.795 SSW 0.000 0.000 0.739 0.170 0.000 0.000 0.000 0.000 0.000 0.909 SW 0.000 0.000 0.284 0.170 0.000 0.000 0.000 0.000 0.000 0.455 WSW 0.000 0.000 0.455 0.455 0.114 0.000 0.000 0.000 0.000 1.023 W 0.000 0.000 0.057 0.568 0.568 0.170 0.000 0.000 0.000 1.364 WNW 0.000 0.000 0.000 0.114 0.170 0.795 0.000 0.000 0.000 1.080 NW 0.000 0.000 0.000 0.000 0.170 0.455 0.000 0.000 0.000 0.625 NNW 0.000 0.000 0.000 0.000 0.227 0.170 0.057 0.000 0.000 0.455 SUBTOTAL 0.000 0.000 2.784 1.761 1.364 1.818 0.057 0.000 0.000 7.784 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 1760 TOTAL HOURS OF STABILITY CLASS C 137 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 137 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1760 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/08/07 MEAN WIND SPEED = 5.24 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-56

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.568 0.511 0.284 0.057 0.000 0.000 0.000 1.420 NNE 0.000 0.000 0.114 0.511 0.170 0.057 0.000 0.000 0.000 0.852 NE 0.000 0.000 0.284 0.398 0.398 0.398 0.284 0.000 0.000 1.761 ENE 0.000 0.000 0.057 0.227 0.170 0.284 0.057 0.000 0.000 0.795 E 0.000 0.000 0.455 0.398 0.227 0.341 0.000 0.000 0.000 1.420 ESE 0.000 0.000 0.511 0.284 0.341 0.398 0.000 0.000 0.000 1.534 SE 0.000 0.057 1.420 0.114 0.000 0.000 0.000 0.000 0.000 1.591 SSE 0.000 0.057 2.216 0.114 0.000 0.000 0.000 0.000 0.000 2.386 S 0.000 0.114 2.330 0.057 0.114 0.000 0.000 0.000 0.000 2.614 SSW 0.000 0.000 3.011 0.227 0.000 0.000 0.000 0.000 0.000 3.239 SW 0.000 0.000 1.477 0.057 0.000 0.000 0.000 0.000 0.000 1.534 WSW 0.000 0.000 1.420 0.625 0.114 0.000 0.000 0.000 0.000 2.159 W 0.000 0.000 0.625 1.875 0.455 0.227 0.000 0.000 0.000 3.182 WNW 0.000 0.000 0.284 0.511 1.136 1.023 0.000 0.000 0.000 2.955 NW 0.000 0.000 0.114 0.966 1.193 1.193 0.057 0.000 0.000 3.523 NNW 0.000 0.000 0.227 0.682 0.568 0.455 0.000 0.000 0.000 1.932 SUBTOTAL 0.000 0.227 15.114 7.557 5.170 4.432 0.398 0.000 0.000 32.898 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 1760 TOTAL HOURS OF STABILITY CLASS D 579 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 579 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1760 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/08/07 MEAN WIND SPEED = 4.54 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-57

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.170 1.193 0.398 0.057 0.000 0.000 0.000 0.000 1.818 NNE 0.000 0.170 0.398 0.739 0.057 0.000 0.057 0.000 0.000 1.420 NE 0.000 0.114 0.568 0.511 0.284 0.114 0.000 0.000 0.000 1.591 ENE 0.000 0.227 1.761 0.227 0.057 0.000 0.000 0.000 0.000 2.273 E 0.000 0.227 1.932 0.568 0.114 0.000 0.000 0.000 0.000 2.841 ESE 0.000 0.398 2.102 0.341 0.398 0.000 0.000 0.000 0.000 3.239 SE 0.000 0.227 0.852 0.000 0.000 0.000 0.000 0.000 0.000 1.080 SSE 0.000 0.341 0.966 0.057 0.000 0.000 0.000 0.000 0.000 1.364 S 0.000 0.284 1.477 0.000 0.000 0.000 0.000 0.000 0.000 1.761 SSW 0.000 0.227 1.307 0.000 0.000 0.000 0.000 0.000 0.000 1.534 SW 0.000 0.284 0.511 0.000 0.000 0.000 0.000 0.000 0.000 0.795 WSW 0.000 0.114 0.795 0.227 0.114 0.000 0.000 0.000 0.000 1.250 W 0.000 0.170 1.364 0.909 0.000 0.000 0.000 0.000 0.000 2.443 WNW 0.000 0.114 0.568 0.170 0.114 0.057 0.000 0.000 0.000 1.023 NW 0.000 0.170 0.227 0.341 0.057 0.114 0.057 0.000 0.000 0.966 NNW 0.000 0.000 1.023 0.682 0.170 0.341 0.000 0.000 0.000 2.216 SUBTOTAL 0.000 3.239 17.045 5.170 1.420 0.625 0.114 0.000 0.000 27.614 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 1760 TOTAL HOURS OF STABILITY CLASS E 486 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 486 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1760 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/08/07 MEAN WIND SPEED = 2.96 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-58

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.011 0.341 1.761 0.114 0.000 0.000 0.000 0.000 0.000 2.227 NNE 0.005 0.341 0.682 0.227 0.114 0.000 0.000 0.000 0.000 1.369 NE 0.004 0.284 0.398 0.000 0.057 0.000 0.000 0.000 0.000 0.742 ENE 0.005 0.057 0.909 0.114 0.000 0.000 0.000 0.000 0.000 1.085 E 0.007 0.511 0.909 0.114 0.000 0.000 0.000 0.000 0.000 1.541 ESE 0.003 0.227 0.341 0.057 0.000 0.000 0.000 0.000 0.000 0.628 SE 0.004 0.398 0.284 0.000 0.000 0.000 0.000 0.000 0.000 0.685 SSE 0.002 0.170 0.227 0.000 0.000 0.000 0.000 0.000 0.000 0.400 S 0.003 0.227 0.284 0.000 0.000 0.000 0.000 0.000 0.000 0.514 SSW 0.002 0.000 0.341 0.000 0.000 0.000 0.000 0.000 0.000 0.343 SW 0.001 0.057 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.114 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.001 0.057 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.114 WNW 0.001 0.170 0.057 0.057 0.000 0.000 0.000 0.000 0.000 0.285 NW 0.002 0.341 0.114 0.000 0.000 0.000 0.000 0.000 0.000 0.457 NNW 0.007 0.625 0.682 0.114 0.000 0.000 0.000 0.000 0.000 1.427 SUBTOTAL 0.057 3.807 7.102 0.795 0.170 0.000 0.000 0.000 0.000 11.932 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 1760 TOTAL HOURS OF STABILITY CLASS F 210 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 210 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1760 TOTAL HOURS CALM 1 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/08/07 MEAN WIND SPEED = 2.07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-59

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.025 1.307 0.455 0.000 0.000 0.000 0.000 0.000 0.000 1.787 NNE 0.007 0.341 0.170 0.114 0.000 0.000 0.000 0.000 0.000 0.632 NE 0.009 0.398 0.227 0.057 0.000 0.000 0.000 0.000 0.000 0.691 ENE 0.009 0.114 0.511 0.000 0.000 0.000 0.000 0.000 0.000 0.634 E 0.011 0.511 0.227 0.000 0.000 0.000 0.000 0.000 0.000 0.749 ESE 0.013 0.341 0.568 0.000 0.000 0.000 0.000 0.000 0.000 0.922 SE 0.003 0.227 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.231 SSE 0.001 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.058 S 0.002 0.114 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.173 SSW 0.002 0.114 0.000 0.057 0.000 0.000 0.000 0.000 0.000 0.172 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.001 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.058 W 0.001 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.058 WNW 0.001 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.058 NW 0.006 0.341 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.403 NNW 0.023 1.193 0.398 0.000 0.000 0.000 0.000 0.000 0.000 1.614 SUBTOTAL 0.114 5.227 2.670 0.227 0.000 0.000 0.000 0.000 0.000 8.239 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 1760 TOTAL HOURS OF STABILITY CLASS G 145 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 145 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1760 TOTAL HOURS CALM 2 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/08/07 MEAN WIND SPEED = 1.50 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-60

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT BROWNS FERRY NUCLEAR PLANT 2018 METEOROLOGICAL DATA TABLE 7C JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR GROUND LEVEL RELEASES THIRD QUARTER E-61

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.363 0.000 0.000 0.000 0.363 NNE 0.000 0.000 0.000 0.000 0.136 0.000 0.000 0.000 0.000 0.136 NE 0.000 0.000 0.045 0.000 0.000 0.091 0.000 0.000 0.000 0.136 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.045 ESE 0.000 0.000 0.045 0.409 0.272 0.000 0.000 0.000 0.000 0.727 SE 0.000 0.000 1.453 1.771 0.363 0.000 0.000 0.000 0.000 3.588 SSE 0.000 0.000 2.452 0.318 0.000 0.000 0.000 0.000 0.000 2.770 S 0.000 0.000 1.453 0.182 0.000 0.000 0.000 0.000 0.000 1.635 SSW 0.000 0.000 0.590 0.136 0.000 0.000 0.000 0.000 0.000 0.727 SW 0.000 0.000 0.227 0.091 0.000 0.000 0.000 0.000 0.000 0.318 WSW 0.000 0.000 0.136 0.091 0.045 0.000 0.000 0.000 0.000 0.272 W 0.000 0.000 0.000 0.045 0.000 0.091 0.000 0.000 0.000 0.136 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.045 NNW 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.045 SUBTOTAL 0.000 0.000 6.403 3.088 0.863 0.590 0.000 0.000 0.000 10.945 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS A 241 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 241 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/11/05 MEAN WIND SPEED = 3.80 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-62

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.227 0.136 0.000 0.000 0.000 0.363 NNE 0.000 0.000 0.000 0.000 0.227 0.136 0.000 0.000 0.000 0.363 NE 0.000 0.000 0.000 0.000 0.227 0.000 0.000 0.000 0.000 0.227 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.045 0.363 0.091 0.000 0.000 0.000 0.000 0.500 SE 0.000 0.000 0.545 0.136 0.000 0.000 0.000 0.000 0.000 0.681 SSE 0.000 0.000 0.681 0.045 0.000 0.000 0.000 0.000 0.000 0.727 S 0.000 0.000 0.409 0.000 0.000 0.000 0.000 0.000 0.000 0.409 SSW 0.000 0.000 0.272 0.091 0.000 0.000 0.000 0.000 0.000 0.363 SW 0.000 0.000 0.227 0.000 0.000 0.000 0.000 0.000 0.000 0.227 WSW 0.000 0.000 0.000 0.318 0.000 0.000 0.000 0.000 0.000 0.318 W 0.000 0.000 0.000 0.182 0.182 0.045 0.000 0.000 0.000 0.409 WNW 0.000 0.000 0.000 0.045 0.045 0.182 0.091 0.000 0.000 0.363 NW 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.045 NNW 0.000 0.000 0.000 0.000 0.045 0.091 0.000 0.000 0.000 0.136 SUBTOTAL 0.000 0.000 2.180 1.181 1.045 0.636 0.091 0.000 0.000 5.132 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS B 113 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 113 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/11/05 MEAN WIND SPEED = 4.89 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-63

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.363 0.136 0.000 0.000 0.000 0.500 NNE 0.000 0.000 0.000 0.045 0.000 0.045 0.000 0.000 0.000 0.091 NE 0.000 0.000 0.000 0.091 0.045 0.091 0.000 0.000 0.000 0.227 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.091 0.091 0.000 0.000 0.000 0.000 0.182 ESE 0.000 0.000 0.091 0.227 0.000 0.000 0.000 0.000 0.000 0.318 SE 0.000 0.000 0.318 0.045 0.000 0.000 0.000 0.000 0.000 0.363 SSE 0.000 0.000 0.318 0.000 0.000 0.000 0.000 0.000 0.000 0.318 S 0.000 0.000 0.500 0.091 0.000 0.000 0.000 0.000 0.000 0.590 SSW 0.000 0.000 0.363 0.091 0.000 0.000 0.000 0.000 0.000 0.454 SW 0.000 0.000 0.318 0.091 0.000 0.000 0.000 0.000 0.000 0.409 WSW 0.000 0.000 0.227 0.318 0.000 0.000 0.000 0.000 0.000 0.545 W 0.000 0.000 0.000 0.318 0.091 0.045 0.000 0.000 0.000 0.454 WNW 0.000 0.000 0.000 0.136 0.182 0.409 0.045 0.000 0.000 0.772 NW 0.000 0.000 0.000 0.000 0.045 0.091 0.000 0.000 0.000 0.136 NNW 0.000 0.000 0.000 0.136 0.136 0.091 0.000 0.000 0.000 0.363 SUBTOTAL 0.000 0.000 2.134 1.680 0.954 0.908 0.045 0.000 0.000 5.722 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS C 126 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 126 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/11/05 MEAN WIND SPEED = 4.90 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-64

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.409 1.090 0.363 0.091 0.000 0.000 0.000 1.953 NNE 0.000 0.000 0.409 1.362 0.182 0.227 0.000 0.000 0.000 2.180 NE 0.000 0.000 0.772 0.363 0.454 0.182 0.000 0.000 0.000 1.771 ENE 0.000 0.000 0.272 0.500 0.045 0.000 0.000 0.000 0.000 0.817 E 0.000 0.045 0.363 1.135 0.045 0.000 0.000 0.000 0.000 1.589 ESE 0.000 0.000 1.226 1.045 0.000 0.000 0.000 0.000 0.000 2.271 SE 0.000 0.045 1.090 0.000 0.000 0.000 0.000 0.000 0.000 1.135 SSE 0.000 0.045 1.090 0.000 0.000 0.000 0.000 0.000 0.000 1.135 S 0.000 0.091 1.953 0.045 0.000 0.000 0.000 0.000 0.000 2.089 SSW 0.000 0.091 2.906 0.363 0.000 0.000 0.000 0.000 0.000 3.361 SW 0.000 0.000 2.044 0.182 0.000 0.000 0.000 0.000 0.000 2.225 WSW 0.000 0.000 1.726 0.454 0.045 0.000 0.000 0.000 0.000 2.225 W 0.000 0.091 1.226 1.544 0.545 0.091 0.000 0.000 0.000 3.497 WNW 0.000 0.000 0.318 0.681 0.454 0.590 0.136 0.000 0.000 2.180 NW 0.000 0.000 0.272 0.500 0.272 0.227 0.045 0.000 0.000 1.317 NNW 0.000 0.045 0.590 0.772 0.590 0.318 0.000 0.000 0.000 2.316 SUBTOTAL 0.000 0.454 16.667 10.036 2.997 1.726 0.182 0.000 0.000 32.062 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS D 706 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 706 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/11/05 MEAN WIND SPEED = 3.86 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-65

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.318 1.453 0.636 0.045 0.000 0.000 0.000 0.000 2.452 NNE 0.000 0.136 0.817 0.681 0.318 0.091 0.000 0.000 0.000 2.044 NE 0.000 0.182 0.681 0.409 0.409 0.227 0.000 0.000 0.000 1.907 ENE 0.000 0.227 2.134 0.590 0.182 0.045 0.000 0.000 0.000 3.179 E 0.000 0.318 3.406 2.634 0.091 0.000 0.000 0.000 0.000 6.449 ESE 0.000 0.227 2.589 0.863 0.091 0.000 0.000 0.000 0.000 3.769 SE 0.000 0.272 0.863 0.000 0.000 0.000 0.000 0.000 0.000 1.135 SSE 0.000 0.045 0.500 0.000 0.000 0.000 0.000 0.000 0.000 0.545 S 0.000 0.091 0.954 0.000 0.000 0.000 0.000 0.000 0.000 1.045 SSW 0.000 0.136 0.954 0.045 0.045 0.000 0.000 0.000 0.000 1.181 SW 0.000 0.272 0.182 0.000 0.000 0.000 0.000 0.000 0.000 0.454 WSW 0.000 0.227 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.363 W 0.000 0.045 0.363 0.227 0.000 0.000 0.000 0.000 0.000 0.636 WNW 0.000 0.091 0.000 0.045 0.000 0.045 0.000 0.000 0.000 0.182 NW 0.000 0.000 0.272 0.091 0.000 0.045 0.000 0.000 0.000 0.409 NNW 0.000 0.136 1.181 0.590 0.182 0.091 0.000 0.000 0.000 2.180 SUBTOTAL 0.000 2.725 16.485 6.812 1.362 0.545 0.000 0.000 0.000 27.929 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS E 615 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 615 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/11/05 MEAN WIND SPEED = 3.06 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-66

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.136 2.180 0.272 0.000 0.000 0.000 0.000 0.000 2.589 NNE 0.000 0.091 1.135 0.636 0.045 0.000 0.000 0.000 0.000 1.907 NE 0.000 0.227 0.727 0.182 0.000 0.000 0.000 0.000 0.000 1.135 ENE 0.000 0.136 1.499 0.409 0.091 0.000 0.000 0.000 0.000 2.134 E 0.000 0.272 1.907 0.681 0.000 0.000 0.000 0.000 0.000 2.861 ESE 0.000 0.091 0.363 0.045 0.000 0.000 0.000 0.000 0.000 0.500 SE 0.000 0.045 0.227 0.000 0.000 0.000 0.000 0.000 0.000 0.272 SSE 0.000 0.091 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.136 S 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 SSW 0.000 0.045 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.182 SW 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.091 WSW 0.000 0.000 0.045 0.045 0.000 0.000 0.000 0.000 0.000 0.091 W 0.000 0.000 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.136 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.091 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.136 NNW 0.000 0.091 0.681 0.000 0.000 0.000 0.000 0.000 0.000 0.772 SUBTOTAL 0.000 1.362 9.219 2.271 0.136 0.000 0.000 0.000 0.000 12.988 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS F 286 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 286 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/11/05 MEAN WIND SPEED = 2.68 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-67

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.545 0.545 0.000 0.000 0.000 0.000 0.000 0.000 1.090 NNE 0.000 0.272 0.545 0.000 0.000 0.000 0.000 0.000 0.000 0.817 NE 0.000 0.409 0.590 0.000 0.000 0.000 0.000 0.000 0.000 0.999 ENE 0.000 0.045 0.500 0.000 0.000 0.000 0.000 0.000 0.000 0.545 E 0.000 0.045 0.182 0.045 0.000 0.000 0.000 0.000 0.000 0.272 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.045 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.091 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 W 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.182 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.227 NNW 0.000 0.954 0.136 0.000 0.000 0.000 0.000 0.000 0.000 1.090 SUBTOTAL 0.000 2.589 2.589 0.045 0.000 0.000 0.000 0.000 0.000 5.223 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS G 115 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 115 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2018/11/05 MEAN WIND SPEED = 1.59 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-68

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT BROWNS FERRY NUCLEAR PLANT 2018 METEOROLOGICAL DATA TABLE 7D JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR GROUND LEVEL RELEASES FOURTH QUARTER E-69

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.098 0.000 0.000 0.000 0.098 NNE 0.000 0.000 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.049 NE 0.000 0.000 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.049 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.098 0.148 0.000 0.000 0.000 0.000 0.000 0.246 SSE 0.000 0.000 0.394 0.000 0.000 0.000 0.000 0.000 0.000 0.394 S 0.000 0.000 0.148 0.000 0.000 0.000 0.000 0.000 0.000 0.148 SSW 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.049 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.049 0.000 0.000 0.049 NW 0.000 0.000 0.000 0.049 0.000 0.049 0.049 0.000 0.000 0.148 NNW 0.000 0.000 0.000 0.000 0.000 0.098 0.000 0.000 0.000 0.098 SUBTOTAL 0.000 0.000 0.640 0.246 0.000 0.344 0.098 0.000 0.000 1.329 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2058 TOTAL HOURS OF STABILITY CLASS A 27 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 27 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2032 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2019/02/14 MEAN WIND SPEED = 5.83 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-70

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.049 0.049 0.000 0.000 0.000 0.098 NNE 0.000 0.000 0.000 0.000 0.197 0.049 0.000 0.000 0.000 0.246 NE 0.000 0.000 0.000 0.000 0.000 0.098 0.000 0.000 0.000 0.098 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.049 SE 0.000 0.000 0.148 0.344 0.000 0.000 0.000 0.000 0.000 0.492 SSE 0.000 0.000 0.000 0.098 0.000 0.000 0.000 0.000 0.000 0.098 S 0.000 0.000 0.049 0.148 0.000 0.000 0.000 0.000 0.000 0.197 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.098 0.246 0.000 0.000 0.344 NW 0.000 0.000 0.000 0.000 0.000 0.246 0.049 0.000 0.000 0.295 NNW 0.000 0.000 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.049 SUBTOTAL 0.000 0.000 0.197 0.640 0.246 0.591 0.295 0.000 0.000 1.969 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2058 TOTAL HOURS OF STABILITY CLASS B 40 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 40 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2032 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2019/02/14 MEAN WIND SPEED = 7.38 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-71

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.049 0.000 0.148 0.000 0.000 0.000 0.000 0.197 NNE 0.000 0.000 0.000 0.098 0.295 0.000 0.000 0.000 0.000 0.394 NE 0.000 0.000 0.000 0.049 0.049 0.049 0.000 0.000 0.000 0.148 ENE 0.000 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.049 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.148 0.049 0.000 0.000 0.000 0.000 0.197 SE 0.000 0.000 0.344 0.295 0.000 0.000 0.000 0.000 0.000 0.640 SSE 0.000 0.000 0.197 0.000 0.000 0.000 0.000 0.000 0.000 0.197 S 0.000 0.000 0.148 0.000 0.000 0.000 0.000 0.000 0.000 0.148 SSW 0.000 0.000 0.098 0.000 0.000 0.000 0.000 0.000 0.000 0.098 SW 0.000 0.000 0.000 0.098 0.000 0.000 0.000 0.000 0.000 0.098 WSW 0.000 0.000 0.049 0.098 0.000 0.000 0.000 0.000 0.000 0.148 W 0.000 0.000 0.000 0.098 0.000 0.000 0.000 0.000 0.000 0.098 WNW 0.000 0.000 0.000 0.000 0.049 0.295 0.000 0.000 0.000 0.344 NW 0.000 0.000 0.000 0.000 0.000 0.492 0.098 0.000 0.000 0.591 NNW 0.000 0.000 0.000 0.000 0.049 0.148 0.000 0.000 0.000 0.197 SUBTOTAL 0.000 0.000 0.886 0.886 0.689 0.984 0.098 0.000 0.000 3.543 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2058 TOTAL HOURS OF STABILITY CLASS C 72 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 72 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2032 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2019/02/14 MEAN WIND SPEED = 6.22 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-72

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.295 0.689 0.984 0.787 0.000 0.000 0.000 2.756 NNE 0.000 0.000 0.591 0.984 2.215 0.246 0.000 0.000 0.000 4.035 NE 0.000 0.000 0.148 0.738 0.837 1.033 0.000 0.000 0.000 2.756 ENE 0.000 0.000 0.394 0.246 0.246 0.197 0.000 0.000 0.000 1.083 E 0.000 0.000 0.443 0.443 0.295 0.098 0.000 0.000 0.000 1.280 ESE 0.000 0.000 1.378 1.969 1.575 0.197 0.000 0.000 0.000 5.118 SE 0.000 0.098 2.264 0.738 0.148 0.000 0.000 0.000 0.000 3.248 SSE 0.000 0.000 1.526 0.049 0.000 0.000 0.000 0.000 0.000 1.575 S 0.000 0.000 1.083 0.246 0.000 0.000 0.000 0.000 0.000 1.329 SSW 0.000 0.049 0.738 0.148 0.049 0.000 0.000 0.000 0.000 0.984 SW 0.000 0.000 0.738 0.098 0.000 0.000 0.000 0.000 0.000 0.837 WSW 0.000 0.000 0.837 0.394 0.049 0.000 0.000 0.000 0.000 1.280 W 0.000 0.000 0.689 0.787 1.181 0.886 0.098 0.000 0.000 3.642 WNW 0.000 0.049 0.246 0.541 0.394 1.329 0.984 0.049 0.000 3.593 NW 0.000 0.000 0.148 0.394 0.738 2.854 0.886 0.049 0.000 5.069 NNW 0.000 0.000 0.098 0.591 2.215 1.624 0.000 0.000 0.000 4.528 SUBTOTAL 0.000 0.197 11.614 9.055 10.925 9.252 1.969 0.098 0.000 43.110 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2058 TOTAL HOURS OF STABILITY CLASS D 886 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 876 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2032 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2019/02/14 MEAN WIND SPEED = 5.96 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-73

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.049 1.083 0.443 0.098 0.049 0.000 0.000 0.000 1.722 NNE 0.000 0.000 0.689 0.640 0.246 0.148 0.000 0.000 0.000 1.722 NE 0.000 0.049 0.394 0.295 0.197 0.541 0.000 0.000 0.000 1.476 ENE 0.000 0.049 0.541 0.344 0.098 0.000 0.000 0.000 0.000 1.033 E 0.000 0.049 1.575 2.018 0.197 0.000 0.000 0.000 0.000 3.839 ESE 0.000 0.197 1.526 2.559 1.033 0.148 0.000 0.000 0.000 5.463 SE 0.000 0.098 1.230 0.787 0.541 0.344 0.000 0.000 0.000 3.002 SSE 0.000 0.295 1.624 0.443 0.098 0.000 0.000 0.000 0.000 2.461 S 0.000 0.443 1.181 0.443 0.049 0.000 0.000 0.000 0.000 2.116 SSW 0.000 0.049 0.344 0.049 0.000 0.000 0.000 0.000 0.000 0.443 SW 0.000 0.049 0.098 0.000 0.000 0.000 0.000 0.000 0.000 0.148 WSW 0.000 0.049 0.197 0.000 0.000 0.000 0.000 0.000 0.000 0.246 W 0.000 0.000 0.394 0.443 0.148 0.000 0.000 0.000 0.000 0.984 WNW 0.000 0.000 0.295 0.098 0.148 0.000 0.000 0.000 0.000 0.541 NW 0.000 0.098 0.049 0.295 0.640 0.295 0.049 0.000 0.000 1.427 NNW 0.000 0.049 0.492 1.083 1.230 0.443 0.000 0.000 0.000 3.297 SUBTOTAL 0.000 1.526 11.713 9.941 4.724 1.969 0.049 0.000 0.000 29.921 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2058 TOTAL HOURS OF STABILITY CLASS E 611 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 608 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2032 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2019/02/14 MEAN WIND SPEED = 4.05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-74

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.098 0.984 0.148 0.000 0.000 0.000 0.000 0.000 1.230 NNE 0.000 0.098 0.541 0.591 0.049 0.000 0.000 0.000 0.000 1.280 NE 0.000 0.148 0.246 0.049 0.098 0.000 0.000 0.000 0.000 0.541 ENE 0.000 0.098 0.935 0.049 0.098 0.000 0.000 0.000 0.000 1.181 E 0.000 0.246 1.476 0.197 0.000 0.000 0.000 0.000 0.000 1.919 ESE 0.000 0.148 0.984 0.000 0.000 0.000 0.000 0.000 0.000 1.132 SE 0.000 0.443 0.935 0.098 0.049 0.049 0.000 0.000 0.000 1.575 SSE 0.000 0.197 0.541 0.197 0.049 0.000 0.000 0.000 0.000 0.984 S 0.000 0.000 0.098 0.098 0.148 0.049 0.000 0.000 0.000 0.394 SSW 0.000 0.098 0.098 0.000 0.000 0.000 0.000 0.000 0.000 0.197 SW 0.000 0.049 0.148 0.000 0.000 0.000 0.000 0.000 0.000 0.197 WSW 0.000 0.049 0.049 0.000 0.000 0.000 0.000 0.000 0.000 0.098 W 0.000 0.148 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.148 WNW 0.000 0.000 0.148 0.049 0.000 0.000 0.000 0.000 0.000 0.197 NW 0.000 0.049 0.148 0.049 0.000 0.000 0.000 0.000 0.000 0.246 NNW 0.000 0.049 0.443 0.148 0.000 0.000 0.000 0.000 0.000 0.640 SUBTOTAL 0.000 1.919 7.776 1.673 0.492 0.098 0.000 0.000 0.000 11.959 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2058 TOTAL HOURS OF STABILITY CLASS F 243 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 243 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2032 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2019/02/14 MEAN WIND SPEED = 2.64 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-75

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.021 0.640 0.984 0.148 0.000 0.000 0.000 0.000 0.000 1.793 NNE 0.012 0.689 0.197 0.000 0.000 0.000 0.000 0.000 0.000 0.897 NE 0.012 0.394 0.541 0.000 0.000 0.000 0.000 0.000 0.000 0.947 ENE 0.011 0.492 0.344 0.000 0.000 0.000 0.000 0.000 0.000 0.847 E 0.013 0.246 0.738 0.000 0.000 0.000 0.000 0.000 0.000 0.997 ESE 0.006 0.197 0.246 0.049 0.000 0.000 0.000 0.000 0.000 0.498 SE 0.003 0.197 0.049 0.000 0.000 0.000 0.000 0.000 0.000 0.249 SSE 0.005 0.197 0.197 0.197 0.049 0.000 0.000 0.000 0.000 0.645 S 0.002 0.098 0.049 0.000 0.000 0.000 0.000 0.000 0.000 0.150 SSW 0.003 0.197 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.199 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.001 0.049 0.049 0.000 0.000 0.000 0.000 0.000 0.000 0.100 NW 0.002 0.098 0.049 0.000 0.000 0.000 0.000 0.000 0.000 0.150 NNW 0.008 0.443 0.197 0.049 0.000 0.000 0.000 0.000 0.000 0.697 SUBTOTAL 0.098 3.937 3.642 0.443 0.049 0.000 0.000 0.000 0.000 8.169 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2058 TOTAL HOURS OF STABILITY CLASS G 179 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 166 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2032 TOTAL HOURS CALM 2 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2019/02/14 MEAN WIND SPEED = 1.80 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-76

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT BROWNS FERRY NUCLEAR PLANT 2018 METEOROLOGICAL DATA TABLE 8A JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (GROUND LEVEL RELEASE MODE AND ELEVATED RELEASE MODE)

FIRST QUARTER E-77

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.064 0.000 0.000 0.000 0.064 NNE 0.000 0.000 0.000 0.000 0.004 0.031 0.000 0.000 0.000 0.035 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.032 0.186 0.101 0.010 0.000 0.000 0.000 0.329 SSE 0.000 0.000 0.050 0.057 0.000 0.000 0.000 0.000 0.000 0.108 S 0.000 0.000 0.000 0.024 0.010 0.000 0.000 0.000 0.000 0.034 SSW 0.000 0.000 0.000 0.017 0.000 0.000 0.000 0.000 0.000 0.017 SW 0.000 0.000 0.000 0.021 0.000 0.000 0.000 0.000 0.000 0.021 WSW 0.000 0.000 0.000 0.007 0.007 0.000 0.000 0.000 0.000 0.013 W 0.000 0.000 0.000 0.000 0.007 0.026 0.000 0.000 0.000 0.033 WNW 0.000 0.000 0.000 0.000 0.009 0.116 0.049 0.000 0.000 0.173 NW 0.000 0.000 0.000 0.000 0.004 0.067 0.122 0.000 0.000 0.194 NNW 0.000 0.000 0.000 0.000 0.000 0.047 0.093 0.000 0.000 0.140 SUBTOTAL 0.000 0.000 0.083 0.312 0.141 0.361 0.263 0.000 0.000 1.161 TOTAL HOURS OF VALID OBSERVATIONS 2080.000 TOTAL HOURS OF GROUND LEVEL RELEASE 294.620 TOTAL HOURS OF STABILITY CLASS A 37.880 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 24.140 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/05/03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-78

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.001 0.006 0.029 0.000 0.000 0.000 0.037 NNE 0.000 0.000 0.000 0.000 0.006 0.009 0.000 0.000 0.000 0.014 NE 0.000 0.000 0.000 0.000 0.006 0.021 0.000 0.000 0.000 0.027 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.006 SE 0.000 0.000 0.009 0.087 0.045 0.043 0.000 0.000 0.000 0.185 SSE 0.000 0.000 0.000 0.010 0.000 0.000 0.000 0.000 0.000 0.010 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.005 0.000 0.000 0.000 0.000 0.000 0.005 SW 0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.000 0.000 0.007 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.003 WNW 0.000 0.000 0.000 0.000 0.000 0.016 0.009 0.000 0.000 0.025 NW 0.000 0.000 0.000 0.000 0.007 0.030 0.029 0.000 0.000 0.066 NNW 0.000 0.000 0.000 0.000 0.010 0.046 0.010 0.000 0.000 0.066 SUBTOTAL 0.000 0.000 0.009 0.114 0.086 0.194 0.048 0.000 0.000 0.451 TOTAL HOURS OF VALID OBSERVATIONS 2080.000 TOTAL HOURS OF GROUND LEVEL RELEASE 294.620 TOTAL HOURS OF STABILITY CLASS B 51.320 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B 9.380 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/05/03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-79

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.016 0.000 0.000 0.000 0.016 NNE 0.000 0.000 0.000 0.001 0.018 0.037 0.000 0.000 0.000 0.056 NE 0.000 0.000 0.000 0.000 0.023 0.017 0.000 0.000 0.000 0.040 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.011 0.000 0.000 0.000 0.000 0.000 0.011 SE 0.000 0.000 0.003 0.293 0.080 0.000 0.000 0.000 0.000 0.376 SSE 0.000 0.000 0.025 0.027 0.000 0.000 0.000 0.000 0.000 0.051 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.014 0.000 0.000 0.000 0.000 0.000 0.014 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.000 0.007 W 0.000 0.000 0.000 0.000 0.000 0.016 0.000 0.000 0.000 0.016 WNW 0.000 0.000 0.000 0.000 0.004 0.064 0.056 0.000 0.000 0.125 NW 0.000 0.000 0.000 0.000 0.009 0.013 0.069 0.000 0.000 0.091 NNW 0.000 0.000 0.000 0.000 0.004 0.040 0.012 0.000 0.000 0.056 SUBTOTAL 0.000 0.000 0.027 0.347 0.145 0.204 0.137 0.000 0.000 0.861 TOTAL HOURS OF VALID OBSERVATIONS 2080.000 TOTAL HOURS OF GROUND LEVEL RELEASE 294.620 TOTAL HOURS OF STABILITY CLASS C 78.790 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 17.900 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/05/03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-80

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.024 0.121 0.277 0.000 0.000 0.000 0.422 NNE 0.000 0.000 0.002 0.031 0.133 0.070 0.000 0.000 0.000 0.236 NE 0.000 0.000 0.000 0.022 0.021 0.024 0.000 0.000 0.000 0.067 ENE 0.000 0.000 0.000 0.025 0.027 0.006 0.000 0.000 0.000 0.059 E 0.000 0.000 0.004 0.000 0.006 0.000 0.000 0.000 0.000 0.011 ESE 0.000 0.000 0.011 0.100 0.055 0.000 0.000 0.000 0.000 0.165 SE 0.000 0.000 0.060 0.259 0.086 0.000 0.000 0.000 0.000 0.404 SSE 0.000 0.000 0.049 0.029 0.000 0.000 0.000 0.000 0.000 0.078 S 0.000 0.000 0.008 0.084 0.010 0.000 0.000 0.000 0.000 0.101 SSW 0.000 0.000 0.025 0.014 0.010 0.000 0.000 0.000 0.000 0.050 SW 0.000 0.000 0.005 0.008 0.009 0.000 0.000 0.000 0.000 0.021 WSW 0.000 0.000 0.000 0.005 0.000 0.019 0.000 0.000 0.000 0.024 W 0.000 0.000 0.001 0.014 0.032 0.034 0.000 0.000 0.000 0.081 WNW 0.000 0.000 0.000 0.005 0.033 0.165 0.101 0.031 0.000 0.336 NW 0.000 0.000 0.000 0.009 0.016 0.264 0.587 0.117 0.000 0.993 NNW 0.000 0.000 0.000 0.020 0.052 0.459 0.179 0.000 0.000 0.710 SUBTOTAL 0.000 0.000 0.165 0.650 0.610 1.318 0.867 0.148 0.000 3.757 TOTAL HOURS OF VALID OBSERVATIONS 2080.000 TOTAL HOURS OF GROUND LEVEL RELEASE 294.620 TOTAL HOURS OF STABILITY CLASS D 772.460 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 78.140 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/05/03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-81

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.038 0.086 0.075 0.009 0.014 0.000 0.000 0.222 NNE 0.000 0.000 0.004 0.112 0.115 0.008 0.000 0.000 0.000 0.239 NE 0.000 0.000 0.002 0.043 0.060 0.000 0.000 0.000 0.000 0.105 ENE 0.000 0.000 0.003 0.026 0.000 0.000 0.000 0.000 0.000 0.030 E 0.000 0.000 0.014 0.072 0.000 0.000 0.000 0.000 0.000 0.086 ESE 0.000 0.000 0.043 0.208 0.063 0.000 0.000 0.000 0.000 0.314 SE 0.000 0.005 0.118 0.351 0.107 0.000 0.000 0.000 0.000 0.582 SSE 0.000 0.007 0.176 0.083 0.000 0.000 0.000 0.000 0.000 0.265 S 0.000 0.000 0.088 0.230 0.187 0.088 0.000 0.000 0.000 0.593 SSW 0.000 0.001 0.018 0.141 0.058 0.000 0.000 0.000 0.000 0.218 SW 0.000 0.000 0.016 0.045 0.000 0.000 0.000 0.000 0.000 0.061 WSW 0.000 0.000 0.017 0.055 0.034 0.028 0.000 0.000 0.000 0.135 W 0.000 0.000 0.011 0.034 0.014 0.045 0.000 0.000 0.000 0.104 WNW 0.000 0.000 0.000 0.013 0.005 0.037 0.045 0.000 0.000 0.100 NW 0.000 0.000 0.008 0.040 0.080 0.180 0.035 0.000 0.000 0.343 NNW 0.000 0.000 0.009 0.115 0.145 0.129 0.000 0.000 0.000 0.399 SUBTOTAL 0.000 0.013 0.567 1.653 0.943 0.525 0.094 0.000 0.000 3.795 TOTAL HOURS OF VALID OBSERVATIONS 2080.000 TOTAL HOURS OF GROUND LEVEL RELEASE 294.620 TOTAL HOURS OF STABILITY CLASS E 769.870 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS E 78.940 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/05/03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-82

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.001 0.041 0.018 0.000 0.000 0.000 0.000 0.000 0.060 NNE 0.000 0.000 0.050 0.041 0.000 0.000 0.000 0.000 0.000 0.092 NE 0.000 0.001 0.005 0.005 0.008 0.000 0.000 0.000 0.000 0.020 ENE 0.000 0.000 0.004 0.002 0.000 0.000 0.000 0.000 0.000 0.006 E 0.000 0.001 0.050 0.019 0.000 0.000 0.000 0.000 0.000 0.070 ESE 0.000 0.000 0.111 0.039 0.000 0.000 0.000 0.000 0.000 0.150 SE 0.000 0.021 0.166 0.080 0.000 0.000 0.000 0.000 0.000 0.267 SSE 0.000 0.005 0.527 0.253 0.000 0.000 0.000 0.000 0.000 0.786 S 0.000 0.007 0.160 0.340 0.190 0.000 0.000 0.000 0.000 0.698 SSW 0.000 0.000 0.038 0.102 0.018 0.000 0.000 0.000 0.000 0.158 SW 0.000 0.002 0.007 0.000 0.000 0.000 0.000 0.000 0.000 0.009 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.010 0.039 0.006 0.000 0.000 0.000 0.000 0.055 NNW 0.000 0.000 0.024 0.088 0.007 0.000 0.000 0.000 0.000 0.119 SUBTOTAL 0.000 0.038 1.194 1.027 0.230 0.000 0.000 0.000 0.000 2.489 TOTAL HOURS OF VALID OBSERVATIONS 2080.000 TOTAL HOURS OF GROUND LEVEL RELEASE 294.620 TOTAL HOURS OF STABILITY CLASS F 309.360 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F 51.780 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/05/03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-83

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.024 0.000 0.000 0.000 0.000 0.000 0.000 0.024 NNE 0.000 0.000 0.019 0.006 0.000 0.000 0.000 0.000 0.000 0.025 NE 0.000 0.003 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.006 ENE 0.000 0.006 0.013 0.000 0.000 0.000 0.000 0.000 0.000 0.020 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.016 0.005 0.000 0.000 0.000 0.000 0.000 0.000 0.021 SE 0.000 0.046 0.153 0.127 0.000 0.000 0.000 0.000 0.000 0.327 SSE 0.002 0.056 0.793 0.068 0.000 0.000 0.000 0.000 0.000 0.919 S 0.000 0.000 0.155 0.105 0.000 0.000 0.000 0.000 0.000 0.260 SSW 0.000 0.000 0.000 0.018 0.000 0.000 0.000 0.000 0.000 0.018 SW 0.000 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.009 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.000 0.000 0.007 NNW 0.000 0.000 0.015 0.000 0.000 0.000 0.000 0.000 0.000 0.015 SUBTOTAL 0.003 0.126 1.182 0.340 0.000 0.000 0.000 0.000 0.000 1.651 TOTAL HOURS OF VALID OBSERVATIONS 2080.000 TOTAL HOURS OF GROUND LEVEL RELEASE 294.620 TOTAL HOURS OF STABILITY CLASS G 60.320 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS G 34.340 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/05/03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-84

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.039 0.000 0.000 0.039 SE 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.059 0.015 0.119 SSE 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.062 0.000 0.107 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.084 0.000 0.000 0.000 0.084 SW 0.000 0.000 0.000 0.000 0.000 0.042 0.000 0.000 0.000 0.042 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.125 0.000 0.000 0.000 0.125 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.083 0.000 0.026 0.000 0.109 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.036 0.000 0.036 SUBTOTAL 0.000 0.000 0.000 0.000 0.046 0.378 0.039 0.182 0.015 0.661 TOTAL HOURS OF VALID OBSERVATIONS 2080.000 TOTAL HOURS OF ELEVATED RELEASES 1785.380 TOTAL HOURS OF STABILITY CLASS A 37.880 TOTAL HOURS OF ELEVATED STABILITY CLASS A 13.740 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/05/03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-85

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.041 0.157 0.000 0.000 0.199 NNE 0.000 0.000 0.000 0.000 0.000 0.082 0.000 0.000 0.000 0.082 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.216 0.000 0.000 0.000 0.216 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.038 0.032 0.000 0.070 SSE 0.000 0.000 0.000 0.000 0.000 0.045 0.039 0.037 0.000 0.121 S 0.000 0.000 0.000 0.048 0.000 0.000 0.156 0.000 0.000 0.204 SSW 0.000 0.000 0.000 0.000 0.000 0.043 0.000 0.000 0.000 0.043 SW 0.000 0.000 0.000 0.000 0.045 0.043 0.000 0.000 0.000 0.088 WSW 0.000 0.000 0.000 0.000 0.000 0.041 0.000 0.000 0.000 0.041 W 0.000 0.000 0.000 0.000 0.000 0.083 0.000 0.000 0.000 0.083 WNW 0.000 0.000 0.000 0.000 0.000 0.042 0.351 0.029 0.000 0.422 NW 0.000 0.000 0.000 0.000 0.000 0.127 0.000 0.055 0.000 0.182 NNW 0.000 0.000 0.000 0.000 0.000 0.083 0.076 0.106 0.000 0.265 SUBTOTAL 0.000 0.000 0.000 0.048 0.045 0.846 0.819 0.259 0.000 2.016 TOTAL HOURS OF VALID OBSERVATIONS 2080.000 TOTAL HOURS OF ELEVATED RELEASES 1785.380 TOTAL HOURS OF STABILITY CLASS B 51.320 TOTAL HOURS OF ELEVATED STABILITY CLASS B 41.940 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/05/03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-86

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.045 0.210 0.119 0.000 0.000 0.375 NNE 0.000 0.000 0.000 0.000 0.046 0.044 0.158 0.000 0.000 0.248 NE 0.000 0.000 0.000 0.000 0.000 0.126 0.000 0.000 0.000 0.126 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.048 ESE 0.000 0.000 0.000 0.000 0.000 0.041 0.000 0.000 0.000 0.041 SE 0.000 0.000 0.000 0.096 0.094 0.125 0.000 0.030 0.017 0.363 SSE 0.000 0.000 0.000 0.048 0.141 0.000 0.077 0.036 0.000 0.301 S 0.000 0.000 0.000 0.096 0.000 0.041 0.000 0.000 0.000 0.138 SSW 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.048 SW 0.000 0.000 0.000 0.000 0.000 0.042 0.000 0.000 0.000 0.042 WSW 0.000 0.000 0.000 0.000 0.000 0.041 0.000 0.000 0.000 0.041 W 0.000 0.000 0.000 0.000 0.000 0.000 0.039 0.000 0.000 0.039 WNW 0.000 0.000 0.000 0.000 0.000 0.423 0.237 0.029 0.000 0.689 NW 0.000 0.000 0.000 0.000 0.000 0.123 0.078 0.033 0.000 0.234 NNW 0.000 0.000 0.000 0.000 0.000 0.041 0.119 0.035 0.000 0.195 SUBTOTAL 0.000 0.000 0.000 0.288 0.374 1.258 0.828 0.162 0.017 2.927 TOTAL HOURS OF VALID OBSERVATIONS 2080.000 TOTAL HOURS OF ELEVATED RELEASES 1785.380 TOTAL HOURS OF STABILITY CLASS C 78.790 TOTAL HOURS OF ELEVATED STABILITY CLASS C 60.890 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/05/03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-87

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.144 0.096 0.234 1.538 1.572 0.144 0.000 3.729 NNE 0.000 0.000 0.192 0.337 0.875 1.979 0.437 0.000 0.000 3.820 NE 0.000 0.000 0.048 0.288 0.463 0.518 0.000 0.000 0.000 1.317 ENE 0.000 0.000 0.144 0.144 0.325 0.126 0.000 0.000 0.000 0.739 E 0.000 0.000 0.048 0.337 0.280 0.174 0.000 0.000 0.000 0.838 ESE 0.000 0.000 0.000 0.337 0.456 0.466 0.039 0.000 0.000 1.298 SE 0.000 0.000 0.144 0.337 0.329 0.417 0.508 0.475 0.038 2.248 SSE 0.000 0.000 0.048 0.529 0.184 0.380 0.195 0.131 0.000 1.467 S 0.000 0.000 0.433 0.240 0.000 0.209 0.196 0.063 0.000 1.142 SSW 0.000 0.000 0.192 0.288 0.093 0.419 0.547 0.000 0.000 1.540 SW 0.000 0.000 0.337 0.433 0.236 0.337 0.039 0.000 0.000 1.381 WSW 0.000 0.000 0.240 0.240 0.138 0.041 0.115 0.000 0.000 0.775 W 0.000 0.000 0.192 0.096 0.424 0.545 0.197 0.000 0.000 1.454 WNW 0.000 0.000 0.000 0.337 0.232 1.670 0.549 0.326 0.000 3.114 NW 0.000 0.000 0.000 0.240 0.275 0.919 2.180 0.771 0.001 4.386 NNW 0.000 0.048 0.096 0.096 0.322 1.290 2.000 0.282 0.000 4.134 SUBTOTAL 0.000 0.048 2.260 4.375 4.865 11.026 8.575 2.192 0.039 33.381 TOTAL HOURS OF VALID OBSERVATIONS 2080.000 TOTAL HOURS OF ELEVATED RELEASES 1785.380 TOTAL HOURS OF STABILITY CLASS D 772.460 TOTAL HOURS OF ELEVATED STABILITY CLASS D 694.320 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/05/03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-88

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.048 0.048 0.288 0.508 0.933 0.200 0.000 0.000 2.025 NNE 0.000 0.000 0.048 0.288 0.549 0.936 0.040 0.000 0.000 1.862 NE 0.000 0.000 0.096 0.433 0.696 0.856 0.000 0.000 0.000 2.081 ENE 0.000 0.000 0.144 0.529 0.323 0.170 0.000 0.000 0.000 1.166 E 0.000 0.096 0.000 0.337 0.371 0.086 0.000 0.000 0.000 0.889 ESE 0.000 0.000 0.240 0.481 0.465 1.292 0.238 0.000 0.000 2.716 SE 0.000 0.000 0.096 0.192 0.280 1.804 1.523 0.078 0.033 4.007 SSE 0.000 0.000 0.048 0.481 0.510 1.119 1.289 0.273 0.000 3.719 S 0.000 0.000 0.000 0.240 0.283 1.000 1.484 0.796 0.009 3.812 SSW 0.000 0.000 0.048 0.144 0.228 1.164 1.215 0.105 0.007 2.911 SW 0.000 0.000 0.096 0.096 0.370 0.704 0.474 0.000 0.000 1.739 WSW 0.000 0.000 0.000 0.240 0.514 0.418 0.275 0.000 0.000 1.447 W 0.000 0.000 0.048 0.000 0.275 0.213 0.078 0.000 0.000 0.614 WNW 0.000 0.000 0.000 0.048 0.096 0.300 0.038 0.000 0.000 0.482 NW 0.000 0.000 0.000 0.000 0.090 0.882 0.354 0.000 0.000 1.326 NNW 0.000 0.000 0.048 0.096 0.275 1.688 0.314 0.000 0.000 2.421 SUBTOTAL 0.000 0.144 0.962 3.894 5.832 13.564 7.522 1.251 0.049 33.218 TOTAL HOURS OF VALID OBSERVATIONS 2080.000 TOTAL HOURS OF ELEVATED RELEASES 1785.380 TOTAL HOURS OF STABILITY CLASS E 769.870 TOTAL HOURS OF ELEVATED STABILITY CLASS E 690.930 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/05/03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-89

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.096 0.091 0.303 0.000 0.000 0.000 0.490 NNE 0.000 0.000 0.048 0.000 0.138 0.211 0.000 0.000 0.000 0.397 NE 0.000 0.000 0.000 0.000 0.187 0.296 0.000 0.000 0.000 0.483 ENE 0.000 0.000 0.000 0.144 0.093 0.000 0.040 0.000 0.000 0.277 E 0.000 0.000 0.000 0.000 0.046 0.171 0.000 0.000 0.000 0.217 ESE 0.000 0.000 0.048 0.048 0.092 0.684 0.040 0.000 0.000 0.912 SE 0.000 0.000 0.048 0.000 0.045 0.509 1.165 0.233 0.000 2.000 SSE 0.000 0.000 0.000 0.048 0.000 0.877 1.368 0.260 0.011 2.564 S 0.000 0.000 0.096 0.192 0.276 0.829 1.094 0.274 0.000 2.762 SSW 0.000 0.000 0.192 0.000 0.094 0.210 0.119 0.000 0.000 0.615 SW 0.000 0.000 0.096 0.000 0.045 0.044 0.000 0.000 0.000 0.186 WSW 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.048 W 0.000 0.000 0.048 0.048 0.000 0.000 0.000 0.000 0.000 0.096 WNW 0.000 0.000 0.000 0.096 0.093 0.000 0.000 0.000 0.000 0.189 NW 0.000 0.000 0.000 0.096 0.048 0.256 0.000 0.000 0.000 0.400 NNW 0.000 0.000 0.000 0.144 0.091 0.512 0.000 0.000 0.000 0.748 SUBTOTAL 0.000 0.000 0.577 0.962 1.339 4.902 3.826 0.767 0.011 12.384 TOTAL HOURS OF VALID OBSERVATIONS 2080.000 TOTAL HOURS OF ELEVATED RELEASES 1785.380 TOTAL HOURS OF STABILITY CLASS F 309.360 TOTAL HOURS OF ELEVATED STABILITY CLASS F 257.580 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/05/03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-90

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.048 0.000 0.045 0.000 0.000 0.000 0.000 0.093 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.048 0.046 0.129 0.000 0.000 0.000 0.223 SE 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.048 SSE 0.000 0.000 0.048 0.144 0.000 0.000 0.506 0.034 0.000 0.732 S 0.000 0.000 0.000 0.000 0.000 0.040 0.078 0.034 0.000 0.153 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.096 0.240 0.090 0.170 0.584 0.068 0.000 1.249 TOTAL HOURS OF VALID OBSERVATIONS 2080.000 TOTAL HOURS OF ELEVATED RELEASES 1785.380 TOTAL HOURS OF STABILITY CLASS G 60.320 TOTAL HOURS OF ELEVATED STABILITY CLASS G 25.980 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/05/03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-91

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT BROWNS FERRY NUCLEAR PLANT 2018 METEOROLOGICAL DATA TABLE 8B JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (GROUND LEVEL RELEASE MODE AND ELEVATED RELEASE MODE)

SECOND QUARTER E-92

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.009 0.000 0.000 0.000 0.009 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.042 0.017 0.000 0.000 0.000 0.000 0.059 SE 0.000 0.000 0.033 0.045 0.010 0.000 0.000 0.000 0.000 0.088 SSE 0.000 0.000 0.074 0.000 0.000 0.000 0.000 0.000 0.000 0.074 S 0.000 0.000 0.043 0.006 0.000 0.000 0.000 0.000 0.000 0.049 SSW 0.000 0.000 0.037 0.014 0.000 0.000 0.000 0.000 0.000 0.051 SW 0.000 0.000 0.005 0.006 0.000 0.000 0.000 0.000 0.000 0.011 WSW 0.000 0.000 0.002 0.023 0.019 0.000 0.000 0.000 0.000 0.044 W 0.000 0.000 0.000 0.011 0.000 0.000 0.000 0.000 0.000 0.011 WNW 0.000 0.000 0.000 0.000 0.000 0.020 0.000 0.000 0.000 0.020 NW 0.000 0.000 0.000 0.000 0.000 0.009 0.000 0.000 0.000 0.009 NNW 0.000 0.000 0.000 0.000 0.000 0.032 0.000 0.000 0.000 0.032 SUBTOTAL 0.000 0.000 0.194 0.147 0.046 0.069 0.000 0.000 0.000 0.456 TOTAL HOURS OF VALID OBSERVATIONS 1760.000 TOTAL HOURS OF GROUND LEVEL RELEASE 114.230 TOTAL HOURS OF STABILITY CLASS A 12.490 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 8.020 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/08/07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-93

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.002 0.004 0.010 0.000 0.000 0.000 0.016 NNE 0.000 0.000 0.000 0.000 0.006 0.007 0.000 0.000 0.000 0.014 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.018 0.006 0.000 0.000 0.000 0.000 0.024 SE 0.000 0.000 0.013 0.000 0.000 0.000 0.000 0.000 0.000 0.013 SSE 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.006 S 0.000 0.000 0.033 0.000 0.000 0.000 0.000 0.000 0.000 0.033 SSW 0.000 0.000 0.020 0.000 0.000 0.000 0.000 0.000 0.000 0.020 SW 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.009 WSW 0.000 0.000 0.000 0.013 0.000 0.000 0.000 0.000 0.000 0.013 W 0.000 0.000 0.000 0.023 0.044 0.032 0.000 0.000 0.000 0.099 WNW 0.000 0.000 0.000 0.000 0.000 0.034 0.000 0.000 0.000 0.034 NW 0.000 0.000 0.000 0.002 0.000 0.044 0.000 0.000 0.000 0.046 NNW 0.000 0.000 0.000 0.000 0.000 0.064 0.000 0.000 0.000 0.064 SUBTOTAL 0.000 0.000 0.080 0.058 0.060 0.191 0.000 0.000 0.000 0.389 TOTAL HOURS OF VALID OBSERVATIONS 1760.000 TOTAL HOURS OF GROUND LEVEL RELEASE 114.230 TOTAL HOURS OF STABILITY CLASS B 25.260 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B 6.840 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/08/07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-94

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.001 0.003 0.009 0.000 0.000 0.000 0.013 NNE 0.000 0.000 0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.007 NE 0.000 0.000 0.000 0.000 0.000 0.016 0.000 0.000 0.000 0.016 ENE 0.000 0.000 0.000 0.000 0.005 0.000 0.000 0.000 0.000 0.005 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.011 0.000 0.000 0.000 0.000 0.000 0.011 SE 0.000 0.000 0.011 0.000 0.000 0.000 0.000 0.000 0.000 0.011 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.027 0.000 0.000 0.000 0.000 0.000 0.000 0.027 SSW 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.006 SW 0.000 0.000 0.014 0.000 0.000 0.000 0.000 0.000 0.000 0.014 WSW 0.000 0.000 0.007 0.018 0.018 0.000 0.000 0.000 0.000 0.043 W 0.000 0.000 0.000 0.019 0.048 0.022 0.000 0.000 0.000 0.089 WNW 0.000 0.000 0.000 0.000 0.014 0.111 0.000 0.000 0.000 0.124 NW 0.000 0.000 0.000 0.000 0.010 0.060 0.000 0.000 0.000 0.069 NNW 0.000 0.000 0.000 0.000 0.015 0.023 0.011 0.000 0.000 0.049 SUBTOTAL 0.000 0.000 0.065 0.049 0.112 0.248 0.011 0.000 0.000 0.486 TOTAL HOURS OF VALID OBSERVATIONS 1760.000 TOTAL HOURS OF GROUND LEVEL RELEASE 114.230 TOTAL HOURS OF STABILITY CLASS C 80.640 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 8.550 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/08/07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-95

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.022 0.022 0.011 0.000 0.000 0.000 0.056 NNE 0.000 0.000 0.000 0.022 0.021 0.010 0.000 0.000 0.000 0.052 NE 0.000 0.000 0.000 0.009 0.040 0.065 0.061 0.000 0.000 0.175 ENE 0.000 0.000 0.000 0.008 0.015 0.041 0.012 0.000 0.000 0.076 E 0.000 0.000 0.007 0.032 0.032 0.078 0.000 0.000 0.000 0.150 ESE 0.000 0.000 0.005 0.041 0.062 0.236 0.000 0.000 0.000 0.344 SE 0.000 0.000 0.044 0.016 0.000 0.000 0.000 0.000 0.000 0.060 SSE 0.000 0.000 0.109 0.035 0.000 0.000 0.000 0.000 0.000 0.144 S 0.000 0.002 0.078 0.012 0.114 0.000 0.000 0.000 0.000 0.206 SSW 0.000 0.000 0.163 0.069 0.000 0.000 0.000 0.000 0.000 0.232 SW 0.000 0.000 0.041 0.000 0.000 0.000 0.000 0.000 0.000 0.041 WSW 0.000 0.000 0.013 0.031 0.019 0.000 0.000 0.000 0.000 0.063 W 0.000 0.000 0.004 0.054 0.039 0.040 0.000 0.000 0.000 0.137 WNW 0.000 0.000 0.000 0.007 0.089 0.139 0.000 0.000 0.000 0.235 NW 0.000 0.000 0.000 0.002 0.068 0.172 0.011 0.000 0.000 0.253 NNW 0.000 0.000 0.000 0.026 0.054 0.077 0.000 0.000 0.000 0.157 SUBTOTAL 0.000 0.002 0.462 0.387 0.576 0.869 0.084 0.000 0.000 2.381 TOTAL HOURS OF VALID OBSERVATIONS 1760.000 TOTAL HOURS OF GROUND LEVEL RELEASE 114.230 TOTAL HOURS OF STABILITY CLASS D 837.770 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 41.900 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/08/07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-96

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.052 0.036 0.010 0.000 0.000 0.000 0.000 0.098 NNE 0.000 0.000 0.001 0.070 0.009 0.000 0.046 0.000 0.000 0.126 NE 0.000 0.000 0.009 0.043 0.037 0.021 0.000 0.000 0.000 0.110 ENE 0.000 0.003 0.060 0.021 0.006 0.000 0.000 0.000 0.000 0.091 E 0.000 0.004 0.126 0.066 0.017 0.000 0.000 0.000 0.000 0.213 ESE 0.000 0.005 0.185 0.058 0.068 0.000 0.000 0.000 0.000 0.316 SE 0.000 0.007 0.019 0.000 0.000 0.000 0.000 0.000 0.000 0.027 SSE 0.000 0.001 0.074 0.000 0.000 0.000 0.000 0.000 0.000 0.076 S 0.000 0.002 0.157 0.000 0.000 0.000 0.000 0.000 0.000 0.159 SSW 0.000 0.005 0.118 0.000 0.000 0.000 0.000 0.000 0.000 0.123 SW 0.000 0.000 0.037 0.000 0.000 0.000 0.000 0.000 0.000 0.037 WSW 0.000 0.000 0.023 0.022 0.017 0.000 0.000 0.000 0.000 0.062 W 0.000 0.000 0.022 0.072 0.000 0.000 0.000 0.000 0.000 0.093 WNW 0.000 0.000 0.006 0.012 0.014 0.008 0.000 0.000 0.000 0.040 NW 0.000 0.000 0.003 0.014 0.006 0.020 0.011 0.000 0.000 0.054 NNW 0.000 0.000 0.031 0.055 0.027 0.061 0.000 0.000 0.000 0.174 SUBTOTAL 0.000 0.028 0.923 0.468 0.211 0.110 0.057 0.000 0.000 1.797 TOTAL HOURS OF VALID OBSERVATIONS 1760.000 TOTAL HOURS OF GROUND LEVEL RELEASE 114.230 TOTAL HOURS OF STABILITY CLASS E 516.360 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS E 31.630 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/08/07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-97

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.001 0.141 0.016 0.000 0.000 0.000 0.000 0.000 0.158 NNE 0.000 0.000 0.032 0.025 0.019 0.000 0.000 0.000 0.000 0.077 NE 0.000 0.005 0.003 0.000 0.010 0.000 0.000 0.000 0.000 0.018 ENE 0.000 0.002 0.027 0.016 0.000 0.000 0.000 0.000 0.000 0.045 E 0.000 0.029 0.032 0.007 0.000 0.000 0.000 0.000 0.000 0.068 ESE 0.000 0.010 0.027 0.010 0.000 0.000 0.000 0.000 0.000 0.047 SE 0.000 0.013 0.027 0.000 0.000 0.000 0.000 0.000 0.000 0.040 SSE 0.000 0.009 0.034 0.000 0.000 0.000 0.000 0.000 0.000 0.043 S 0.000 0.012 0.035 0.000 0.000 0.000 0.000 0.000 0.000 0.047 SSW 0.000 0.000 0.019 0.000 0.000 0.000 0.000 0.000 0.000 0.019 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.006 NW 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.001 NNW 0.000 0.000 0.031 0.016 0.000 0.000 0.000 0.000 0.000 0.047 SUBTOTAL 0.000 0.081 0.409 0.096 0.029 0.000 0.000 0.000 0.000 0.614 TOTAL HOURS OF VALID OBSERVATIONS 1760.000 TOTAL HOURS OF GROUND LEVEL RELEASE 114.230 TOTAL HOURS OF STABILITY CLASS F 219.430 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F 10.810 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/08/07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-98

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.009 0.030 0.000 0.000 0.000 0.000 0.000 0.000 0.038 NNE 0.000 0.000 0.013 0.016 0.000 0.000 0.000 0.000 0.000 0.030 NE 0.000 0.008 0.010 0.007 0.000 0.000 0.000 0.000 0.000 0.025 ENE 0.000 0.016 0.037 0.000 0.000 0.000 0.000 0.000 0.000 0.053 E 0.000 0.064 0.011 0.000 0.000 0.000 0.000 0.000 0.000 0.075 ESE 0.000 0.038 0.040 0.000 0.000 0.000 0.000 0.000 0.000 0.078 SE 0.000 0.024 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.024 SSE 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.007 0.000 0.002 0.000 0.000 0.000 0.000 0.000 0.009 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.001 NNW 0.000 0.006 0.018 0.000 0.000 0.000 0.000 0.000 0.000 0.024 SUBTOTAL 0.000 0.184 0.159 0.025 0.000 0.000 0.000 0.000 0.000 0.368 TOTAL HOURS OF VALID OBSERVATIONS 1760.000 TOTAL HOURS OF GROUND LEVEL RELEASE 114.230 TOTAL HOURS OF STABILITY CLASS G 68.050 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS G 6.480 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/08/07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-99

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.048 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.055 0.052 0.000 0.000 0.000 0.107 S 0.000 0.000 0.000 0.000 0.000 0.098 0.000 0.000 0.000 0.098 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.055 0.199 0.000 0.000 0.000 0.254 TOTAL HOURS OF VALID OBSERVATIONS 1760.000 TOTAL HOURS OF ELEVATED RELEASES 1645.770 TOTAL HOURS OF STABILITY CLASS A 12.490 TOTAL HOURS OF ELEVATED STABILITY CLASS A 4.470 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/08/07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-100

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.048 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.097 0.047 0.000 0.000 0.144 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.047 SSE 0.000 0.000 0.000 0.057 0.110 0.151 0.000 0.000 0.000 0.317 S 0.000 0.000 0.000 0.000 0.000 0.051 0.000 0.000 0.000 0.051 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.057 0.103 0.047 0.000 0.000 0.206 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.094 0.000 0.000 0.094 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.139 0.000 0.000 0.139 SUBTOTAL 0.000 0.000 0.000 0.057 0.166 0.450 0.373 0.000 0.000 1.047 TOTAL HOURS OF VALID OBSERVATIONS 1760.000 TOTAL HOURS OF ELEVATED RELEASES 1645.770 TOTAL HOURS OF STABILITY CLASS B 25.260 TOTAL HOURS OF ELEVATED STABILITY CLASS B 18.420 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/08/07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-101

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.107 0.048 0.047 0.000 0.000 0.203 NNE 0.000 0.000 0.000 0.000 0.000 0.247 0.000 0.000 0.000 0.247 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.148 0.000 0.000 0.000 0.148 SE 0.000 0.000 0.000 0.227 0.274 0.205 0.000 0.000 0.000 0.706 SSE 0.000 0.000 0.000 0.227 0.057 0.000 0.000 0.000 0.000 0.284 S 0.000 0.000 0.000 0.057 0.000 0.196 0.000 0.000 0.000 0.253 SSW 0.000 0.000 0.000 0.227 0.223 0.403 0.000 0.000 0.000 0.854 SW 0.000 0.000 0.000 0.114 0.053 0.101 0.000 0.000 0.000 0.268 WSW 0.000 0.000 0.000 0.057 0.000 0.201 0.000 0.000 0.000 0.257 W 0.000 0.000 0.000 0.000 0.053 0.247 0.000 0.000 0.000 0.300 WNW 0.000 0.000 0.000 0.000 0.000 0.147 0.000 0.000 0.000 0.147 NW 0.000 0.000 0.000 0.000 0.000 0.095 0.047 0.000 0.000 0.142 NNW 0.000 0.000 0.000 0.000 0.000 0.148 0.140 0.000 0.000 0.287 SUBTOTAL 0.000 0.000 0.000 0.909 0.767 2.186 0.234 0.000 0.000 4.096 TOTAL HOURS OF VALID OBSERVATIONS 1760.000 TOTAL HOURS OF ELEVATED RELEASES 1645.770 TOTAL HOURS OF STABILITY CLASS C 80.640 TOTAL HOURS OF ELEVATED STABILITY CLASS C 72.090 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/08/07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-102

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.227 0.284 0.601 0.305 0.045 0.000 0.000 1.462 NNE 0.000 0.000 0.227 0.284 0.169 0.361 0.047 0.000 0.000 1.089 NE 0.000 0.000 0.057 0.284 0.164 0.494 0.277 0.086 0.000 1.362 ENE 0.000 0.000 0.000 0.000 0.111 0.559 0.091 0.000 0.000 0.761 E 0.000 0.000 0.170 0.057 0.214 0.198 0.182 0.081 0.000 0.902 ESE 0.000 0.000 0.284 0.511 0.110 0.439 0.326 0.017 0.000 1.688 SE 0.000 0.000 0.455 1.023 0.659 0.493 0.278 0.000 0.000 2.907 SSE 0.000 0.000 0.795 0.795 1.093 1.056 0.047 0.022 0.000 3.808 S 0.000 0.057 0.966 1.364 0.932 2.955 0.369 0.000 0.000 6.642 SSW 0.000 0.000 1.193 2.330 0.602 1.057 0.141 0.000 0.000 5.324 SW 0.000 0.000 0.511 1.307 0.602 0.409 0.047 0.000 0.000 2.875 WSW 0.000 0.000 0.455 1.420 0.880 0.595 0.188 0.000 0.000 3.538 W 0.000 0.000 0.170 1.136 1.195 1.103 0.093 0.000 0.000 3.699 WNW 0.000 0.000 0.170 0.568 0.655 2.200 0.234 0.000 0.000 3.827 NW 0.000 0.000 0.114 0.739 1.049 1.048 0.465 0.000 0.000 3.414 NNW 0.000 0.000 0.000 0.341 0.700 0.648 0.232 0.000 0.000 1.922 SUBTOTAL 0.000 0.057 5.795 12.443 9.736 13.920 3.062 0.206 0.000 45.220 TOTAL HOURS OF VALID OBSERVATIONS 1760.000 TOTAL HOURS OF ELEVATED RELEASES 1645.770 TOTAL HOURS OF STABILITY CLASS D 837.770 TOTAL HOURS OF ELEVATED STABILITY CLASS D 795.870 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/08/07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-103

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.398 0.455 0.491 0.546 0.092 0.000 0.000 1.981 NNE 0.000 0.000 0.284 0.227 0.381 0.600 0.000 0.000 0.011 1.503 NE 0.000 0.000 0.170 0.398 0.161 0.356 0.047 0.000 0.000 1.133 ENE 0.000 0.000 0.114 0.284 0.383 0.101 0.000 0.000 0.000 0.881 E 0.000 0.057 0.114 0.284 0.548 0.564 0.047 0.000 0.000 1.614 ESE 0.000 0.000 0.170 0.284 0.655 0.653 0.091 0.000 0.007 1.860 SE 0.000 0.000 0.170 0.852 0.722 0.453 0.324 0.000 0.000 2.523 SSE 0.000 0.114 0.398 0.966 1.143 1.048 0.047 0.000 0.000 3.715 S 0.000 0.057 0.170 0.682 0.545 1.218 0.280 0.064 0.000 3.016 SSW 0.000 0.057 0.170 0.568 0.382 0.555 0.000 0.000 0.000 1.733 SW 0.000 0.057 0.284 0.398 0.110 0.148 0.000 0.000 0.000 0.996 WSW 0.000 0.000 0.114 0.398 0.274 0.202 0.000 0.000 0.000 0.987 W 0.000 0.000 0.625 0.284 0.709 0.465 0.000 0.000 0.000 2.083 WNW 0.000 0.000 0.057 0.398 0.331 0.255 0.000 0.000 0.000 1.040 NW 0.000 0.000 0.114 0.114 0.328 0.251 0.046 0.000 0.000 0.852 NNW 0.000 0.000 0.227 0.284 0.220 0.657 0.234 0.000 0.000 1.623 SUBTOTAL 0.000 0.341 3.580 6.875 7.384 8.072 1.209 0.064 0.018 27.541 TOTAL HOURS OF VALID OBSERVATIONS 1760.000 TOTAL HOURS OF ELEVATED RELEASES 1645.770 TOTAL HOURS OF STABILITY CLASS E 516.360 TOTAL HOURS OF ELEVATED STABILITY CLASS E 484.730 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/08/07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-104

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.227 0.220 0.653 0.000 0.000 0.000 1.100 NNE 0.000 0.057 0.000 0.284 0.331 0.394 0.000 0.000 0.000 1.066 NE 0.000 0.114 0.000 0.398 0.278 0.249 0.187 0.000 0.000 1.226 ENE 0.000 0.000 0.000 0.170 0.109 0.198 0.000 0.000 0.000 0.477 E 0.000 0.057 0.170 0.114 0.324 0.102 0.000 0.000 0.000 0.766 ESE 0.000 0.000 0.114 0.000 0.327 0.051 0.000 0.000 0.000 0.491 SE 0.000 0.000 0.114 0.057 0.110 0.204 0.000 0.000 0.000 0.484 SSE 0.000 0.000 0.227 0.341 0.055 0.448 0.094 0.000 0.000 1.165 S 0.000 0.000 0.114 0.114 0.166 0.785 0.047 0.000 0.000 1.226 SSW 0.000 0.000 0.284 0.170 0.053 0.299 0.047 0.000 0.000 0.854 SW 0.000 0.000 0.114 0.227 0.111 0.000 0.000 0.000 0.000 0.452 WSW 0.000 0.000 0.170 0.000 0.000 0.000 0.000 0.000 0.000 0.170 W 0.000 0.000 0.227 0.227 0.000 0.000 0.000 0.000 0.000 0.455 WNW 0.000 0.000 0.114 0.000 0.000 0.000 0.000 0.000 0.000 0.114 NW 0.000 0.000 0.170 0.114 0.333 0.103 0.000 0.000 0.000 0.720 NNW 0.000 0.114 0.227 0.284 0.111 0.351 0.000 0.000 0.000 1.087 SUBTOTAL 0.000 0.341 2.045 2.727 2.528 3.837 0.375 0.000 0.000 11.853 TOTAL HOURS OF VALID OBSERVATIONS 1760.000 TOTAL HOURS OF ELEVATED RELEASES 1645.770 TOTAL HOURS OF STABILITY CLASS F 219.430 TOTAL HOURS OF ELEVATED STABILITY CLASS F 208.620 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/08/07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-105

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.057 0.000 0.053 0.203 0.000 0.000 0.000 0.313 NNE 0.000 0.000 0.000 0.000 0.056 0.151 0.000 0.000 0.000 0.207 NE 0.000 0.000 0.057 0.114 0.110 0.000 0.000 0.000 0.000 0.281 ENE 0.000 0.000 0.057 0.057 0.055 0.051 0.000 0.000 0.000 0.219 E 0.000 0.000 0.114 0.000 0.055 0.052 0.000 0.000 0.000 0.221 ESE 0.000 0.000 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.057 SE 0.000 0.000 0.057 0.170 0.164 0.460 0.000 0.000 0.000 0.852 SSE 0.000 0.000 0.057 0.057 0.000 0.051 0.000 0.000 0.000 0.164 S 0.000 0.000 0.170 0.057 0.000 0.049 0.000 0.000 0.000 0.276 SSW 0.000 0.000 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.057 SW 0.000 0.000 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.057 WSW 0.000 0.000 0.114 0.000 0.000 0.000 0.000 0.000 0.000 0.114 W 0.000 0.057 0.114 0.170 0.000 0.000 0.000 0.000 0.000 0.341 WNW 0.000 0.057 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.114 NW 0.000 0.057 0.000 0.057 0.056 0.000 0.000 0.000 0.000 0.170 NNW 0.000 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.057 SUBTOTAL 0.000 0.227 1.023 0.682 0.551 1.016 0.000 0.000 0.000 3.498 TOTAL HOURS OF VALID OBSERVATIONS 1760.000 TOTAL HOURS OF ELEVATED RELEASES 1645.770 TOTAL HOURS OF STABILITY CLASS G 68.050 TOTAL HOURS OF ELEVATED STABILITY CLASS G 61.570 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/08/07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-106

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT BROWNS FERRY NUCLEAR PLANT 2018 METEOROLOGICAL DATA TABLE 8C JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (GROUND LEVEL RELEASE MODE AND ELEVATED RELEASE MODE)

THIRD QUARTER E-107

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.050 0.000 0.000 0.000 0.050 NNE 0.000 0.000 0.000 0.000 0.015 0.000 0.000 0.000 0.000 0.015 NE 0.000 0.000 0.000 0.000 0.000 0.013 0.000 0.000 0.000 0.013 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.004 0.000 0.000 0.000 0.000 0.000 0.004 ESE 0.000 0.000 0.008 0.047 0.047 0.000 0.000 0.000 0.000 0.102 SE 0.000 0.000 0.060 0.139 0.067 0.000 0.000 0.000 0.000 0.265 SSE 0.000 0.000 0.081 0.018 0.000 0.000 0.000 0.000 0.000 0.099 S 0.000 0.000 0.100 0.010 0.000 0.000 0.000 0.000 0.000 0.109 SSW 0.000 0.000 0.059 0.015 0.000 0.000 0.000 0.000 0.000 0.075 SW 0.000 0.000 0.008 0.003 0.000 0.000 0.000 0.000 0.000 0.011 WSW 0.000 0.000 0.005 0.005 0.004 0.000 0.000 0.000 0.000 0.014 W 0.000 0.000 0.000 0.001 0.000 0.013 0.000 0.000 0.000 0.014 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.004 0.000 0.000 0.000 0.000 0.004 NNW 0.000 0.000 0.000 0.000 0.000 0.008 0.000 0.000 0.000 0.008 SUBTOTAL 0.000 0.000 0.321 0.242 0.136 0.083 0.000 0.000 0.000 0.782 TOTAL HOURS OF VALID OBSERVATIONS 2202.000 TOTAL HOURS OF GROUND LEVEL RELEASE 131.370 TOTAL HOURS OF STABILITY CLASS A 64.600 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 17.230 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/11/05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-108

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.020 0.021 0.000 0.000 0.000 0.040 NNE 0.000 0.000 0.000 0.000 0.016 0.020 0.000 0.000 0.000 0.035 NE 0.000 0.000 0.000 0.000 0.019 0.000 0.000 0.000 0.000 0.019 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.037 0.016 0.000 0.000 0.000 0.000 0.053 SE 0.000 0.000 0.007 0.010 0.000 0.000 0.000 0.000 0.000 0.018 SSE 0.000 0.000 0.010 0.000 0.000 0.000 0.000 0.000 0.000 0.010 S 0.000 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.001 SSW 0.000 0.000 0.027 0.006 0.000 0.000 0.000 0.000 0.000 0.033 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.006 W 0.000 0.000 0.000 0.003 0.017 0.007 0.000 0.000 0.000 0.026 WNW 0.000 0.000 0.000 0.000 0.004 0.029 0.018 0.000 0.000 0.050 NW 0.000 0.000 0.000 0.000 0.000 0.008 0.000 0.000 0.000 0.008 NNW 0.000 0.000 0.000 0.000 0.005 0.015 0.000 0.000 0.000 0.020 SUBTOTAL 0.000 0.000 0.045 0.062 0.095 0.099 0.018 0.000 0.000 0.319 TOTAL HOURS OF VALID OBSERVATIONS 2202.000 TOTAL HOURS OF GROUND LEVEL RELEASE 131.370 TOTAL HOURS OF STABILITY CLASS B 76.330 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B 7.030 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/11/05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-109

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.032 0.020 0.000 0.000 0.000 0.052 NNE 0.000 0.000 0.000 0.002 0.000 0.007 0.000 0.000 0.000 0.009 NE 0.000 0.000 0.000 0.000 0.004 0.012 0.000 0.000 0.000 0.015 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.001 0.009 0.000 0.000 0.000 0.000 0.010 ESE 0.000 0.000 0.007 0.018 0.000 0.000 0.000 0.000 0.000 0.025 SE 0.000 0.000 0.016 0.003 0.000 0.000 0.000 0.000 0.000 0.020 SSE 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.003 S 0.000 0.000 0.014 0.000 0.000 0.000 0.000 0.000 0.000 0.014 SSW 0.000 0.000 0.008 0.005 0.000 0.000 0.000 0.000 0.000 0.013 SW 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.003 WSW 0.000 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.003 W 0.000 0.000 0.000 0.003 0.005 0.006 0.000 0.000 0.000 0.015 WNW 0.000 0.000 0.000 0.001 0.008 0.062 0.009 0.000 0.000 0.079 NW 0.000 0.000 0.000 0.000 0.003 0.010 0.000 0.000 0.000 0.014 NNW 0.000 0.000 0.000 0.002 0.013 0.017 0.000 0.000 0.000 0.032 SUBTOTAL 0.000 0.000 0.052 0.039 0.074 0.134 0.009 0.000 0.000 0.307 TOTAL HOURS OF VALID OBSERVATIONS 2202.000 TOTAL HOURS OF GROUND LEVEL RELEASE 131.370 TOTAL HOURS OF STABILITY CLASS C 140.810 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 6.770 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/11/05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-110

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.007 0.067 0.041 0.016 0.000 0.000 0.000 0.131 NNE 0.000 0.000 0.000 0.058 0.012 0.038 0.000 0.000 0.000 0.109 NE 0.000 0.000 0.000 0.006 0.046 0.026 0.000 0.000 0.000 0.078 ENE 0.000 0.000 0.000 0.021 0.005 0.000 0.000 0.000 0.000 0.026 E 0.000 0.000 0.011 0.092 0.007 0.000 0.000 0.000 0.000 0.110 ESE 0.000 0.000 0.059 0.151 0.000 0.000 0.000 0.000 0.000 0.210 SE 0.000 0.000 0.041 0.000 0.000 0.000 0.000 0.000 0.000 0.041 SSE 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.045 S 0.000 0.000 0.090 0.000 0.000 0.000 0.000 0.000 0.000 0.090 SSW 0.000 0.001 0.184 0.055 0.000 0.000 0.000 0.000 0.000 0.241 SW 0.000 0.000 0.036 0.009 0.000 0.000 0.000 0.000 0.000 0.045 WSW 0.000 0.000 0.010 0.017 0.008 0.000 0.000 0.000 0.000 0.035 W 0.000 0.000 0.007 0.040 0.059 0.016 0.000 0.000 0.000 0.123 WNW 0.000 0.000 0.000 0.008 0.029 0.093 0.037 0.000 0.000 0.167 NW 0.000 0.000 0.000 0.008 0.017 0.030 0.009 0.000 0.000 0.064 NNW 0.000 0.000 0.000 0.022 0.069 0.053 0.000 0.000 0.000 0.144 SUBTOTAL 0.000 0.001 0.490 0.555 0.292 0.272 0.046 0.000 0.000 1.657 TOTAL HOURS OF VALID OBSERVATIONS 2202.000 TOTAL HOURS OF GROUND LEVEL RELEASE 131.370 TOTAL HOURS OF STABILITY CLASS D 949.010 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 36.490 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/11/05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-111

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.063 0.074 0.006 0.000 0.000 0.000 0.000 0.143 NNE 0.000 0.000 0.016 0.084 0.046 0.016 0.000 0.000 0.000 0.163 NE 0.000 0.004 0.018 0.038 0.059 0.035 0.000 0.000 0.000 0.153 ENE 0.000 0.010 0.059 0.052 0.024 0.008 0.000 0.000 0.000 0.154 E 0.000 0.010 0.250 0.312 0.016 0.000 0.000 0.000 0.000 0.589 ESE 0.000 0.006 0.190 0.122 0.015 0.000 0.000 0.000 0.000 0.333 SE 0.000 0.003 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.050 SSE 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.045 S 0.000 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.093 SSW 0.000 0.003 0.079 0.009 0.007 0.000 0.000 0.000 0.000 0.099 SW 0.000 0.004 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.004 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.001 0.012 0.000 0.000 0.000 0.000 0.000 0.013 WNW 0.000 0.000 0.000 0.002 0.000 0.007 0.000 0.000 0.000 0.009 NW 0.000 0.000 0.004 0.002 0.000 0.008 0.000 0.000 0.000 0.014 NNW 0.000 0.000 0.029 0.067 0.026 0.016 0.000 0.000 0.000 0.138 SUBTOTAL 0.000 0.040 0.893 0.775 0.201 0.090 0.000 0.000 0.000 2.000 TOTAL HOURS OF VALID OBSERVATIONS 2202.000 TOTAL HOURS OF GROUND LEVEL RELEASE 131.370 TOTAL HOURS OF STABILITY CLASS E 642.720 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS E 44.030 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/11/05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-112

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.003 0.187 0.037 0.000 0.000 0.000 0.000 0.000 0.227 NNE 0.000 0.003 0.049 0.086 0.008 0.000 0.000 0.000 0.000 0.146 NE 0.000 0.000 0.030 0.025 0.000 0.000 0.000 0.000 0.000 0.054 ENE 0.000 0.000 0.053 0.039 0.013 0.000 0.000 0.000 0.000 0.105 E 0.000 0.010 0.114 0.070 0.000 0.000 0.000 0.000 0.000 0.194 ESE 0.000 0.001 0.023 0.005 0.000 0.000 0.000 0.000 0.000 0.028 SE 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.003 SSE 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 S 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.003 SSW 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.001 0.005 0.000 0.000 0.000 0.000 0.000 0.005 W 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.003 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.023 0.000 0.000 0.000 0.000 0.000 0.000 0.023 SUBTOTAL 0.000 0.031 0.486 0.266 0.021 0.000 0.000 0.000 0.000 0.804 TOTAL HOURS OF VALID OBSERVATIONS 2202.000 TOTAL HOURS OF GROUND LEVEL RELEASE 131.370 TOTAL HOURS OF STABILITY CLASS F 288.360 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F 17.710 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/11/05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-113

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.021 0.000 0.000 0.000 0.000 0.000 0.000 0.021 NNE 0.000 0.001 0.025 0.000 0.000 0.000 0.000 0.000 0.000 0.026 NE 0.000 0.000 0.007 0.000 0.000 0.000 0.000 0.000 0.000 0.007 ENE 0.000 0.000 0.020 0.000 0.000 0.000 0.000 0.000 0.000 0.020 E 0.000 0.003 0.011 0.004 0.000 0.000 0.000 0.000 0.000 0.018 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.001 NNW 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.003 SUBTOTAL 0.000 0.005 0.087 0.004 0.000 0.000 0.000 0.000 0.000 0.096 TOTAL HOURS OF VALID OBSERVATIONS 2202.000 TOTAL HOURS OF GROUND LEVEL RELEASE 131.370 TOTAL HOURS OF STABILITY CLASS G 40.170 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS G 2.110 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/11/05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-114

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.080 0.113 0.000 0.000 0.193 SE 0.000 0.000 0.000 0.000 0.044 0.158 0.334 0.000 0.000 0.535 SSE 0.000 0.000 0.000 0.091 0.348 0.204 0.000 0.000 0.000 0.643 S 0.000 0.000 0.000 0.000 0.044 0.324 0.037 0.000 0.000 0.405 SSW 0.000 0.000 0.000 0.045 0.087 0.117 0.000 0.000 0.000 0.250 SW 0.000 0.000 0.000 0.045 0.044 0.000 0.000 0.000 0.000 0.089 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.038 0.000 0.000 0.038 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.182 0.566 0.882 0.521 0.000 0.000 2.151 TOTAL HOURS OF VALID OBSERVATIONS 2202.000 TOTAL HOURS OF ELEVATED RELEASES 2070.630 TOTAL HOURS OF STABILITY CLASS A 64.600 TOTAL HOURS OF ELEVATED STABILITY CLASS A 47.370 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/11/05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-115

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.235 0.000 0.000 0.000 0.235 NNE 0.000 0.000 0.000 0.000 0.000 0.119 0.000 0.000 0.000 0.119 NE 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.045 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.044 0.159 0.000 0.000 0.000 0.203 SE 0.000 0.000 0.136 0.363 0.307 0.202 0.038 0.000 0.000 1.047 SSE 0.000 0.000 0.045 0.182 0.173 0.081 0.000 0.000 0.000 0.481 S 0.000 0.000 0.000 0.045 0.307 0.079 0.113 0.000 0.000 0.544 SSW 0.000 0.000 0.000 0.045 0.132 0.040 0.000 0.000 0.000 0.218 SW 0.000 0.000 0.000 0.000 0.130 0.000 0.000 0.000 0.000 0.130 WSW 0.000 0.000 0.000 0.000 0.000 0.041 0.000 0.000 0.000 0.041 W 0.000 0.000 0.000 0.045 0.000 0.039 0.000 0.000 0.000 0.084 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.182 0.727 1.094 0.995 0.150 0.000 0.000 3.147 TOTAL HOURS OF VALID OBSERVATIONS 2202.000 TOTAL HOURS OF ELEVATED RELEASES 2070.630 TOTAL HOURS OF STABILITY CLASS B 76.330 TOTAL HOURS OF ELEVATED STABILITY CLASS B 69.300 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/11/05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-116

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.130 0.522 0.037 0.000 0.000 0.689 NNE 0.000 0.000 0.000 0.000 0.000 0.322 0.000 0.000 0.000 0.322 NE 0.000 0.000 0.000 0.045 0.086 0.042 0.000 0.000 0.000 0.173 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.201 0.037 0.000 0.000 0.238 SE 0.000 0.000 0.045 0.454 0.743 0.322 0.111 0.000 0.000 1.677 SSE 0.000 0.000 0.091 0.318 0.265 0.201 0.000 0.000 0.000 0.874 S 0.000 0.000 0.045 0.136 0.086 0.199 0.037 0.000 0.000 0.504 SSW 0.000 0.000 0.045 0.136 0.132 0.122 0.000 0.000 0.000 0.436 SW 0.000 0.000 0.000 0.227 0.043 0.000 0.000 0.000 0.000 0.270 WSW 0.000 0.000 0.045 0.045 0.132 0.040 0.000 0.000 0.000 0.262 W 0.000 0.000 0.000 0.045 0.043 0.158 0.000 0.000 0.000 0.246 WNW 0.000 0.000 0.000 0.000 0.000 0.039 0.148 0.000 0.000 0.187 NW 0.000 0.000 0.000 0.000 0.000 0.042 0.000 0.000 0.000 0.042 NNW 0.000 0.000 0.000 0.000 0.044 0.124 0.000 0.000 0.000 0.168 SUBTOTAL 0.000 0.000 0.272 1.408 1.703 2.333 0.371 0.000 0.000 6.087 TOTAL HOURS OF VALID OBSERVATIONS 2202.000 TOTAL HOURS OF ELEVATED RELEASES 2070.630 TOTAL HOURS OF STABILITY CLASS C 140.810 TOTAL HOURS OF ELEVATED STABILITY CLASS C 134.040 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/11/05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-117

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.227 0.500 0.650 1.003 0.000 0.000 0.000 2.380 NNE 0.000 0.000 0.272 0.727 0.785 0.801 0.186 0.000 0.000 2.772 NE 0.000 0.000 0.363 0.454 0.220 0.445 0.000 0.000 0.000 1.482 ENE 0.000 0.000 0.091 0.272 0.305 0.120 0.000 0.000 0.000 0.788 E 0.000 0.045 0.000 0.227 0.043 0.123 0.000 0.000 0.000 0.438 ESE 0.000 0.045 0.272 0.363 0.700 1.134 0.037 0.000 0.000 2.551 SE 0.000 0.000 0.363 0.772 0.916 0.958 0.558 0.000 0.000 3.567 SSE 0.000 0.000 0.908 1.135 0.841 1.116 0.371 0.000 0.000 4.372 S 0.000 0.000 0.590 0.863 0.914 1.638 0.149 0.000 0.000 4.153 SSW 0.000 0.000 0.817 1.317 1.306 1.048 0.223 0.000 0.000 4.711 SW 0.000 0.000 0.954 1.499 0.439 0.167 0.000 0.000 0.000 3.058 WSW 0.000 0.000 0.454 1.090 0.831 0.163 0.037 0.000 0.000 2.575 W 0.000 0.045 0.363 0.999 1.060 0.686 0.112 0.000 0.000 3.265 WNW 0.000 0.045 0.182 0.590 0.569 0.625 0.298 0.026 0.000 2.336 NW 0.000 0.000 0.091 0.272 0.217 0.317 0.074 0.000 0.000 0.971 NNW 0.000 0.000 0.318 0.363 0.392 0.723 0.224 0.000 0.000 2.021 SUBTOTAL 0.000 0.182 6.267 11.444 10.187 11.067 2.268 0.026 0.000 41.441 TOTAL HOURS OF VALID OBSERVATIONS 2202.000 TOTAL HOURS OF ELEVATED RELEASES 2070.630 TOTAL HOURS OF STABILITY CLASS D 949.010 TOTAL HOURS OF ELEVATED STABILITY CLASS D 912.520 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/11/05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-118

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.227 0.500 0.346 1.168 0.036 0.000 0.000 2.277 NNE 0.000 0.000 0.272 0.318 0.484 1.270 0.000 0.000 0.000 2.344 NE 0.000 0.000 0.182 0.272 0.088 0.438 0.075 0.000 0.000 1.055 ENE 0.000 0.000 0.227 0.272 0.350 0.240 0.037 0.000 0.000 1.127 E 0.000 0.000 0.227 0.409 0.832 1.062 0.000 0.000 0.000 2.530 ESE 0.000 0.000 0.182 0.454 1.040 3.020 0.074 0.000 0.000 4.770 SE 0.000 0.000 0.091 0.454 0.650 1.416 0.335 0.000 0.000 2.946 SSE 0.000 0.000 0.045 0.817 0.870 1.170 0.037 0.000 0.000 2.940 S 0.000 0.000 0.045 0.636 0.614 0.760 0.075 0.000 0.000 2.129 SSW 0.000 0.000 0.182 0.500 0.174 0.361 0.038 0.000 0.000 1.254 SW 0.000 0.000 0.227 0.227 0.000 0.042 0.000 0.000 0.000 0.496 WSW 0.000 0.000 0.136 0.272 0.089 0.000 0.000 0.000 0.000 0.497 W 0.000 0.000 0.091 0.091 0.087 0.040 0.000 0.000 0.000 0.309 WNW 0.000 0.000 0.227 0.136 0.089 0.000 0.000 0.000 0.000 0.452 NW 0.000 0.045 0.182 0.182 0.132 0.042 0.075 0.000 0.000 0.658 NNW 0.000 0.000 0.091 0.454 0.312 0.512 0.037 0.000 0.000 1.406 SUBTOTAL 0.000 0.045 2.634 5.995 6.155 11.540 0.820 0.000 0.000 27.188 TOTAL HOURS OF VALID OBSERVATIONS 2202.000 TOTAL HOURS OF ELEVATED RELEASES 2070.630 TOTAL HOURS OF STABILITY CLASS E 642.720 TOTAL HOURS OF ELEVATED STABILITY CLASS E 598.690 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/11/05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-119

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.091 0.091 0.260 1.160 0.000 0.000 0.000 1.602 NNE 0.000 0.000 0.045 0.272 0.391 0.674 0.075 0.000 0.000 1.459 NE 0.000 0.000 0.136 0.272 0.393 0.517 0.000 0.000 0.000 1.319 ENE 0.000 0.000 0.182 0.318 0.614 0.801 0.000 0.000 0.000 1.914 E 0.000 0.000 0.000 0.272 0.439 0.203 0.000 0.000 0.000 0.915 ESE 0.000 0.000 0.227 0.272 0.401 0.573 0.000 0.000 0.000 1.473 SE 0.000 0.000 0.091 0.454 0.391 0.124 0.000 0.000 0.000 1.059 SSE 0.000 0.000 0.091 0.318 0.089 0.123 0.000 0.000 0.000 0.620 S 0.000 0.000 0.363 0.136 0.000 0.000 0.000 0.000 0.000 0.500 SSW 0.000 0.000 0.091 0.182 0.045 0.000 0.000 0.000 0.000 0.318 SW 0.000 0.000 0.318 0.045 0.045 0.000 0.000 0.000 0.000 0.409 WSW 0.000 0.045 0.045 0.000 0.000 0.041 0.000 0.000 0.000 0.132 W 0.000 0.000 0.091 0.091 0.043 0.000 0.000 0.000 0.000 0.224 WNW 0.000 0.000 0.045 0.000 0.000 0.039 0.000 0.000 0.000 0.084 NW 0.000 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.091 NNW 0.000 0.000 0.045 0.045 0.043 0.039 0.000 0.000 0.000 0.173 SUBTOTAL 0.000 0.045 1.862 2.861 3.153 4.294 0.075 0.000 0.000 12.291 TOTAL HOURS OF VALID OBSERVATIONS 2202.000 TOTAL HOURS OF ELEVATED RELEASES 2070.630 TOTAL HOURS OF STABILITY CLASS F 288.360 TOTAL HOURS OF ELEVATED STABILITY CLASS F 270.650 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/11/05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-120

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.039 0.000 0.000 0.000 0.039 NNE 0.000 0.000 0.000 0.136 0.130 0.039 0.000 0.000 0.000 0.306 NE 0.000 0.000 0.091 0.272 0.045 0.080 0.000 0.000 0.000 0.488 ENE 0.000 0.000 0.045 0.182 0.045 0.080 0.000 0.000 0.000 0.352 E 0.000 0.000 0.045 0.000 0.044 0.000 0.000 0.000 0.000 0.089 ESE 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.045 SE 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.045 SSE 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.045 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.136 0.045 0.000 0.000 0.000 0.000 0.000 0.182 SW 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.045 WSW 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.045 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.045 0.500 0.681 0.263 0.239 0.000 0.000 0.000 1.728 TOTAL HOURS OF VALID OBSERVATIONS 2202.000 TOTAL HOURS OF ELEVATED RELEASES 2070.630 TOTAL HOURS OF STABILITY CLASS G 40.170 TOTAL HOURS OF ELEVATED STABILITY CLASS G 38.060 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2018/11/05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-121

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT BROWNS FERRY NUCLEAR PLANT 2018 METEOROLOGICAL DATA TABLE 8D JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (GROUND LEVEL RELEASE MODE AND ELEVATED RELEASE MODE)

FOURTH QUARTER E-122

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.017 0.000 0.000 0.000 0.017 NNE 0.000 0.000 0.000 0.000 0.000 0.008 0.000 0.000 0.000 0.008 NE 0.000 0.000 0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.007 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.010 0.080 0.000 0.000 0.000 0.000 0.000 0.090 SSE 0.000 0.000 0.021 0.000 0.000 0.000 0.000 0.000 0.000 0.021 S 0.000 0.000 0.012 0.000 0.000 0.000 0.000 0.000 0.000 0.012 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.010 0.000 0.000 0.010 NW 0.000 0.000 0.000 0.000 0.000 0.009 0.010 0.000 0.000 0.019 NNW 0.000 0.000 0.000 0.000 0.000 0.018 0.000 0.000 0.000 0.018 SUBTOTAL 0.000 0.000 0.043 0.080 0.000 0.059 0.020 0.000 0.000 0.201 TOTAL HOURS OF VALID OBSERVATIONS 2051.000 TOTAL HOURS OF GROUND LEVEL RELEASE 229.960 TOTAL HOURS OF STABILITY CLASS A 6.050 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 4.130 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2019/02/14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-123

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.004 0.009 0.000 0.000 0.000 0.013 NNE 0.000 0.000 0.000 0.000 0.017 0.007 0.000 0.000 0.000 0.024 NE 0.000 0.000 0.000 0.000 0.000 0.014 0.000 0.000 0.000 0.014 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.006 SE 0.000 0.000 0.003 0.025 0.000 0.000 0.000 0.000 0.000 0.029 SSE 0.000 0.000 0.000 0.020 0.000 0.000 0.000 0.000 0.000 0.020 S 0.000 0.000 0.000 0.030 0.000 0.000 0.000 0.000 0.000 0.030 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.014 0.046 0.000 0.000 0.060 NW 0.000 0.000 0.000 0.000 0.000 0.040 0.009 0.000 0.000 0.050 NNW 0.000 0.000 0.000 0.000 0.000 0.009 0.000 0.000 0.000 0.009 SUBTOTAL 0.000 0.000 0.003 0.081 0.021 0.093 0.056 0.000 0.000 0.255 TOTAL HOURS OF VALID OBSERVATIONS 2051.000 TOTAL HOURS OF GROUND LEVEL RELEASE 229.960 TOTAL HOURS OF STABILITY CLASS B 9.560 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B 5.220 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2019/02/14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-124

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.014 0.000 0.000 0.000 0.000 0.014 NNE 0.000 0.000 0.000 0.000 0.017 0.000 0.000 0.000 0.000 0.017 NE 0.000 0.000 0.000 0.000 0.003 0.009 0.000 0.000 0.000 0.012 ENE 0.000 0.000 0.000 0.000 0.005 0.000 0.000 0.000 0.000 0.005 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.021 0.008 0.000 0.000 0.000 0.000 0.029 SE 0.000 0.000 0.000 0.026 0.000 0.000 0.000 0.000 0.000 0.026 SSE 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.006 S 0.000 0.000 0.010 0.000 0.000 0.000 0.000 0.000 0.000 0.010 SSW 0.000 0.000 0.004 0.000 0.000 0.000 0.000 0.000 0.000 0.004 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.004 0.038 0.000 0.000 0.000 0.042 NW 0.000 0.000 0.000 0.000 0.000 0.084 0.053 0.000 0.000 0.137 NNW 0.000 0.000 0.000 0.000 0.004 0.021 0.000 0.000 0.000 0.025 SUBTOTAL 0.000 0.000 0.020 0.047 0.056 0.152 0.053 0.000 0.000 0.328 TOTAL HOURS OF VALID OBSERVATIONS 2051.000 TOTAL HOURS OF GROUND LEVEL RELEASE 229.960 TOTAL HOURS OF STABILITY CLASS C 35.290 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 6.720 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2019/02/14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-125

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.006 0.044 0.133 0.136 0.000 0.000 0.000 0.319 NNE 0.000 0.000 0.000 0.057 0.274 0.039 0.000 0.000 0.000 0.370 NE 0.000 0.000 0.000 0.014 0.065 0.147 0.000 0.000 0.000 0.227 ENE 0.000 0.000 0.000 0.003 0.020 0.029 0.000 0.000 0.000 0.052 E 0.000 0.000 0.000 0.022 0.049 0.017 0.000 0.000 0.000 0.088 ESE 0.000 0.000 0.034 0.272 0.363 0.037 0.000 0.000 0.000 0.706 SE 0.000 0.000 0.121 0.093 0.083 0.000 0.000 0.000 0.000 0.297 SSE 0.000 0.000 0.128 0.014 0.000 0.000 0.000 0.000 0.000 0.142 S 0.000 0.000 0.056 0.035 0.000 0.000 0.000 0.000 0.000 0.090 SSW 0.000 0.000 0.028 0.025 0.022 0.000 0.000 0.000 0.000 0.075 SW 0.000 0.000 0.015 0.006 0.000 0.000 0.000 0.000 0.000 0.021 WSW 0.000 0.000 0.005 0.026 0.007 0.000 0.000 0.000 0.000 0.039 W 0.000 0.000 0.006 0.032 0.140 0.144 0.037 0.000 0.000 0.359 WNW 0.000 0.000 0.000 0.013 0.028 0.218 0.344 0.029 0.000 0.633 NW 0.000 0.000 0.000 0.000 0.076 0.463 0.275 0.041 0.000 0.855 NNW 0.000 0.000 0.000 0.024 0.256 0.262 0.000 0.000 0.000 0.542 SUBTOTAL 0.000 0.000 0.398 0.680 1.517 1.492 0.657 0.070 0.000 4.814 TOTAL HOURS OF VALID OBSERVATIONS 2051.000 TOTAL HOURS OF GROUND LEVEL RELEASE 229.960 TOTAL HOURS OF STABILITY CLASS D 1045.990 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 98.740 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2019/02/14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-126

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.032 0.033 0.019 0.010 0.000 0.000 0.000 0.093 NNE 0.000 0.000 0.015 0.064 0.037 0.026 0.000 0.000 0.000 0.143 NE 0.000 0.000 0.001 0.027 0.026 0.084 0.000 0.000 0.000 0.138 ENE 0.000 0.005 0.010 0.025 0.010 0.000 0.000 0.000 0.000 0.050 E 0.000 0.003 0.080 0.236 0.029 0.000 0.000 0.000 0.000 0.349 ESE 0.000 0.000 0.082 0.372 0.201 0.059 0.000 0.000 0.000 0.714 SE 0.000 0.006 0.101 0.204 0.318 0.277 0.000 0.000 0.000 0.906 SSE 0.000 0.006 0.195 0.205 0.098 0.000 0.000 0.000 0.000 0.504 S 0.000 0.013 0.138 0.221 0.046 0.000 0.000 0.000 0.000 0.418 SSW 0.000 0.003 0.014 0.009 0.000 0.000 0.000 0.000 0.000 0.026 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.003 W 0.000 0.000 0.011 0.034 0.020 0.000 0.000 0.000 0.000 0.065 WNW 0.000 0.000 0.000 0.005 0.020 0.000 0.000 0.000 0.000 0.024 NW 0.000 0.000 0.001 0.024 0.085 0.052 0.020 0.000 0.000 0.183 NNW 0.000 0.000 0.017 0.097 0.173 0.076 0.000 0.000 0.000 0.363 SUBTOTAL 0.000 0.037 0.700 1.556 1.082 0.585 0.020 0.000 0.000 3.980 TOTAL HOURS OF VALID OBSERVATIONS 2051.000 TOTAL HOURS OF GROUND LEVEL RELEASE 229.960 TOTAL HOURS OF STABILITY CLASS E 612.790 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS E 81.630 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2019/02/14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-127

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.064 0.023 0.000 0.000 0.000 0.000 0.000 0.087 NNE 0.000 0.000 0.035 0.084 0.008 0.000 0.000 0.000 0.000 0.127 NE 0.000 0.000 0.007 0.005 0.013 0.000 0.000 0.000 0.000 0.025 ENE 0.000 0.000 0.033 0.005 0.014 0.000 0.000 0.000 0.000 0.053 E 0.000 0.021 0.106 0.022 0.000 0.000 0.000 0.000 0.000 0.149 ESE 0.000 0.017 0.071 0.000 0.000 0.000 0.000 0.000 0.000 0.088 SE 0.000 0.029 0.065 0.020 0.036 0.031 0.000 0.000 0.000 0.181 SSE 0.000 0.013 0.078 0.104 0.039 0.000 0.000 0.000 0.000 0.233 S 0.000 0.000 0.007 0.077 0.126 0.049 0.000 0.000 0.000 0.259 SSW 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.006 SW 0.000 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.001 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.001 WNW 0.000 0.000 0.003 0.006 0.000 0.000 0.000 0.000 0.000 0.009 NW 0.000 0.000 0.002 0.005 0.000 0.000 0.000 0.000 0.000 0.007 NNW 0.000 0.001 0.020 0.019 0.000 0.000 0.000 0.000 0.000 0.039 SUBTOTAL 0.000 0.082 0.499 0.370 0.235 0.080 0.000 0.000 0.000 1.267 TOTAL HOURS OF VALID OBSERVATIONS 2051.000 TOTAL HOURS OF GROUND LEVEL RELEASE 229.960 TOTAL HOURS OF STABILITY CLASS F 234.890 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F 25.980 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2019/02/14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-128

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.064 0.020 0.000 0.000 0.000 0.000 0.000 0.083 NNE 0.000 0.000 0.016 0.000 0.000 0.000 0.000 0.000 0.000 0.016 NE 0.000 0.000 0.012 0.000 0.000 0.000 0.000 0.000 0.000 0.012 ENE 0.000 0.010 0.015 0.000 0.000 0.000 0.000 0.000 0.000 0.024 E 0.000 0.000 0.042 0.000 0.000 0.000 0.000 0.000 0.000 0.042 ESE 0.000 0.018 0.002 0.006 0.000 0.000 0.000 0.000 0.000 0.025 SE 0.000 0.009 0.002 0.000 0.000 0.000 0.000 0.000 0.000 0.011 SSE 0.000 0.002 0.023 0.070 0.035 0.000 0.000 0.000 0.000 0.131 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.003 NW 0.000 0.000 0.005 0.000 0.000 0.000 0.000 0.000 0.000 0.005 NNW 0.000 0.000 0.008 0.007 0.000 0.000 0.000 0.000 0.000 0.015 SUBTOTAL 0.000 0.039 0.191 0.102 0.035 0.000 0.000 0.000 0.000 0.368 TOTAL HOURS OF VALID OBSERVATIONS 2051.000 TOTAL HOURS OF GROUND LEVEL RELEASE 229.960 TOTAL HOURS OF STABILITY CLASS G 106.430 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS G 7.540 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2019/02/14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-129

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.094 0.000 0.000 0.000 0.000 0.094 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.094 0.000 0.000 0.000 0.000 0.094 TOTAL HOURS OF VALID OBSERVATIONS 2051.000 TOTAL HOURS OF ELEVATED RELEASES 1821.040 TOTAL HOURS OF STABILITY CLASS A 6.050 TOTAL HOURS OF ELEVATED STABILITY CLASS A 1.920 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2019/02/14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-130

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.049 SSE 0.000 0.000 0.000 0.000 0.046 0.000 0.039 0.035 0.000 0.120 S 0.000 0.000 0.000 0.000 0.000 0.043 0.000 0.000 0.000 0.043 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.049 0.046 0.043 0.039 0.035 0.000 0.212 TOTAL HOURS OF VALID OBSERVATIONS 2051.000 TOTAL HOURS OF ELEVATED RELEASES 1821.040 TOTAL HOURS OF STABILITY CLASS B 9.560 TOTAL HOURS OF ELEVATED STABILITY CLASS B 4.340 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2019/02/14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-131

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.080 0.000 0.000 0.080 NNE 0.000 0.000 0.000 0.000 0.000 0.213 0.000 0.000 0.000 0.213 NE 0.000 0.000 0.000 0.000 0.000 0.083 0.000 0.000 0.000 0.083 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.045 0.084 0.000 0.000 0.000 0.129 SE 0.000 0.000 0.000 0.293 0.048 0.043 0.040 0.000 0.000 0.424 SSE 0.000 0.000 0.000 0.049 0.097 0.000 0.000 0.000 0.011 0.157 S 0.000 0.000 0.000 0.000 0.000 0.042 0.000 0.000 0.000 0.042 SSW 0.000 0.000 0.000 0.098 0.000 0.000 0.000 0.000 0.000 0.098 SW 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.049 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.078 0.000 0.000 0.078 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.039 0.000 0.000 0.039 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.488 0.191 0.466 0.238 0.000 0.011 1.393 TOTAL HOURS OF VALID OBSERVATIONS 2051.000 TOTAL HOURS OF ELEVATED RELEASES 1821.040 TOTAL HOURS OF STABILITY CLASS C 35.290 TOTAL HOURS OF ELEVATED STABILITY CLASS C 28.570 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2019/02/14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-132

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.146 0.293 0.987 1.874 0.723 0.000 0.000 4.022 NNE 0.000 0.000 0.390 0.390 0.892 2.615 0.121 0.000 0.000 4.409 NE 0.000 0.000 0.000 0.293 0.660 0.983 0.080 0.000 0.000 2.016 ENE 0.000 0.000 0.195 0.293 0.185 0.344 0.000 0.000 0.000 1.016 E 0.000 0.000 0.341 0.439 0.190 0.343 0.120 0.000 0.000 1.434 ESE 0.000 0.000 0.390 0.488 0.847 1.639 0.679 0.000 0.000 4.043 SE 0.000 0.000 0.536 0.829 0.328 0.674 1.108 0.508 0.014 3.996 SSE 0.000 0.049 0.146 0.293 0.376 0.811 0.474 0.159 0.000 2.308 S 0.000 0.000 0.390 0.244 0.137 0.432 0.238 0.079 0.000 1.520 SSW 0.000 0.000 0.634 0.195 0.231 0.600 0.158 0.000 0.000 1.818 SW 0.000 0.000 0.195 0.536 0.277 0.171 0.000 0.000 0.000 1.180 WSW 0.000 0.000 0.293 0.585 0.281 0.386 0.080 0.000 0.000 1.626 W 0.000 0.000 0.244 0.780 0.563 1.616 0.400 0.165 0.000 3.768 WNW 0.000 0.000 0.195 0.536 0.277 1.059 1.312 0.319 0.000 3.699 NW 0.000 0.000 0.049 0.195 0.275 2.995 2.038 0.237 0.008 5.797 NNW 0.000 0.000 0.000 0.244 0.427 2.264 0.598 0.000 0.000 3.533 SUBTOTAL 0.000 0.049 4.144 6.631 6.934 18.807 8.130 1.468 0.022 46.185 TOTAL HOURS OF VALID OBSERVATIONS 2051.000 TOTAL HOURS OF ELEVATED RELEASES 1821.040 TOTAL HOURS OF STABILITY CLASS D 1045.990 TOTAL HOURS OF ELEVATED STABILITY CLASS D 947.250 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2019/02/14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-133

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.049 0.244 0.285 0.603 0.157 0.000 0.000 1.337 NNE 0.000 0.000 0.098 0.341 0.186 0.936 0.121 0.000 0.000 1.682 NE 0.000 0.000 0.098 0.195 0.236 0.255 0.162 0.000 0.000 0.945 ENE 0.000 0.000 0.049 0.195 0.232 0.086 0.000 0.000 0.000 0.562 E 0.000 0.000 0.049 0.195 0.705 0.651 0.000 0.000 0.000 1.599 ESE 0.000 0.000 0.146 0.244 0.475 2.852 0.718 0.121 0.000 4.556 SE 0.000 0.049 0.244 0.536 0.807 0.975 0.716 0.137 0.048 3.512 SSE 0.000 0.049 0.049 0.439 0.568 1.359 0.756 0.320 0.000 3.539 S 0.000 0.000 0.098 0.536 0.427 0.466 0.278 0.164 0.032 2.000 SSW 0.000 0.000 0.293 0.244 0.096 0.000 0.039 0.000 0.000 0.671 SW 0.000 0.049 0.146 0.195 0.096 0.176 0.000 0.000 0.000 0.663 WSW 0.000 0.000 0.098 0.195 0.095 0.170 0.000 0.000 0.000 0.557 W 0.000 0.000 0.146 0.439 0.328 0.129 0.000 0.000 0.000 1.042 WNW 0.000 0.000 0.098 0.049 0.145 0.214 0.000 0.000 0.000 0.505 NW 0.000 0.000 0.000 0.244 0.045 0.724 0.239 0.000 0.000 1.252 NNW 0.000 0.000 0.000 0.098 0.236 0.980 0.160 0.000 0.000 1.474 SUBTOTAL 0.000 0.146 1.658 4.388 4.962 10.574 3.347 0.742 0.080 25.898 TOTAL HOURS OF VALID OBSERVATIONS 2051.000 TOTAL HOURS OF ELEVATED RELEASES 1821.040 TOTAL HOURS OF STABILITY CLASS E 612.790 TOTAL HOURS OF ELEVATED STABILITY CLASS E 531.160 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2019/02/14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-134

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.049 0.049 0.190 0.174 0.000 0.000 0.000 0.461 NNE 0.000 0.000 0.049 0.098 0.142 0.299 0.080 0.000 0.000 0.667 NE 0.000 0.000 0.049 0.098 0.277 0.172 0.000 0.000 0.000 0.595 ENE 0.000 0.000 0.000 0.000 0.048 0.169 0.000 0.000 0.000 0.217 E 0.000 0.000 0.000 0.049 0.095 0.264 0.000 0.000 0.000 0.407 ESE 0.000 0.000 0.195 0.293 0.373 0.656 0.000 0.000 0.000 1.516 SE 0.000 0.000 0.293 0.341 0.562 0.485 0.039 0.000 0.000 1.720 SSE 0.000 0.049 0.341 0.293 0.280 0.164 0.277 0.108 0.000 1.513 S 0.000 0.049 0.293 0.439 0.093 0.000 0.078 0.031 0.022 1.003 SSW 0.000 0.000 0.146 0.146 0.049 0.000 0.000 0.000 0.000 0.341 SW 0.000 0.000 0.195 0.000 0.000 0.000 0.000 0.000 0.000 0.195 WSW 0.000 0.000 0.098 0.049 0.000 0.000 0.000 0.000 0.000 0.146 W 0.000 0.000 0.146 0.146 0.094 0.000 0.000 0.000 0.000 0.387 WNW 0.000 0.000 0.000 0.098 0.046 0.000 0.000 0.000 0.000 0.143 NW 0.000 0.000 0.000 0.049 0.284 0.088 0.000 0.000 0.000 0.421 NNW 0.000 0.000 0.049 0.049 0.185 0.169 0.000 0.000 0.000 0.451 SUBTOTAL 0.000 0.098 1.902 2.194 2.718 2.639 0.475 0.139 0.022 10.186 TOTAL HOURS OF VALID OBSERVATIONS 2051.000 TOTAL HOURS OF ELEVATED RELEASES 1821.040 TOTAL HOURS OF STABILITY CLASS F 234.890 TOTAL HOURS OF ELEVATED STABILITY CLASS F 208.910 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2019/02/14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-135

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.046 0.263 0.000 0.000 0.000 0.309 NNE 0.000 0.000 0.000 0.000 0.000 0.344 0.120 0.000 0.000 0.465 NE 0.000 0.000 0.049 0.098 0.185 0.264 0.000 0.000 0.000 0.596 ENE 0.000 0.049 0.000 0.049 0.000 0.044 0.000 0.000 0.000 0.141 E 0.000 0.000 0.244 0.146 0.091 0.000 0.000 0.000 0.000 0.481 ESE 0.000 0.049 0.049 0.244 0.234 0.133 0.000 0.000 0.000 0.708 SE 0.000 0.098 0.195 0.293 0.330 0.090 0.000 0.000 0.000 1.005 SSE 0.000 0.000 0.195 0.098 0.000 0.000 0.000 0.000 0.000 0.293 S 0.000 0.000 0.146 0.098 0.000 0.000 0.000 0.000 0.000 0.244 SSW 0.000 0.000 0.146 0.049 0.000 0.000 0.000 0.000 0.000 0.195 SW 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.049 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.098 0.000 0.000 0.000 0.000 0.000 0.000 0.098 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.000 0.049 NNW 0.000 0.000 0.000 0.098 0.092 0.000 0.000 0.000 0.000 0.190 SUBTOTAL 0.000 0.244 1.170 1.170 0.978 1.139 0.120 0.000 0.000 4.822 TOTAL HOURS OF VALID OBSERVATIONS 2051.000 TOTAL HOURS OF ELEVATED RELEASES 1821.040 TOTAL HOURS OF STABILITY CLASS G 106.430 TOTAL HOURS OF ELEVATED STABILITY CLASS G 98.890 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2019/02/14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-136

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT BROWNS FERRY NUCLEAR PLANT 2018 METEOROLOGICAL DATA TABLE 9A JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR ELEVATED RELEASES FIRST QUARTER E-137

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.056 0.056 0.000 0.000 0.112 SE 0.000 0.000 0.000 0.000 0.056 0.000 0.000 0.112 0.224 0.391 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.056 0.000 0.056 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.056 0.056 0.000 0.000 0.112 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.056 0.000 0.000 0.056 W 0.000 0.000 0.000 0.000 0.000 0.000 0.056 0.000 0.000 0.056 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.056 0.000 0.056 NW 0.000 0.000 0.000 0.000 0.000 0.112 0.000 0.000 0.000 0.112 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.056 0.224 0.224 0.224 0.224 0.950 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2095 TOTAL HOURS OF STABILITY CLASS A 20 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 17 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1789 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/05/03 MEAN WIND SPEED = 18.28 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-138

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.056 0.279 0.056 0.000 0.391 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.112 0.000 0.000 0.000 0.112 ESE 0.000 0.000 0.000 0.000 0.000 0.168 0.000 0.056 0.000 0.224 SE 0.000 0.000 0.000 0.000 0.000 0.056 0.000 0.056 0.112 0.224 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.224 0.056 0.000 0.279 S 0.000 0.000 0.000 0.056 0.000 0.000 0.000 0.000 0.000 0.056 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.168 0.000 0.000 0.168 W 0.000 0.000 0.000 0.000 0.000 0.056 0.279 0.056 0.000 0.391 WNW 0.000 0.000 0.000 0.000 0.000 0.056 0.000 0.279 0.000 0.335 NW 0.000 0.000 0.000 0.000 0.000 0.112 0.000 0.000 0.000 0.112 NNW 0.000 0.000 0.000 0.000 0.000 0.056 0.056 0.000 0.000 0.112 SUBTOTAL 0.000 0.000 0.000 0.056 0.000 0.671 1.006 0.559 0.112 2.404 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2095 TOTAL HOURS OF STABILITY CLASS B 52 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 43 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1789 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/05/03 MEAN WIND SPEED = 15.56 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-139

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.168 0.279 0.000 0.000 0.447 NNE 0.000 0.000 0.000 0.000 0.000 0.168 0.112 0.000 0.000 0.279 NE 0.000 0.000 0.000 0.000 0.000 0.056 0.000 0.000 0.000 0.056 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.056 0.000 0.000 0.000 0.000 0.056 ESE 0.000 0.000 0.000 0.056 0.224 0.056 0.112 0.000 0.000 0.447 SE 0.000 0.000 0.000 0.056 0.056 0.056 0.000 0.168 0.112 0.447 SSE 0.000 0.000 0.000 0.056 0.056 0.000 0.000 0.056 0.000 0.168 S 0.000 0.000 0.000 0.056 0.000 0.000 0.000 0.000 0.000 0.056 SSW 0.000 0.000 0.000 0.056 0.000 0.056 0.000 0.000 0.000 0.112 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.056 0.000 0.000 0.056 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.056 0.000 0.056 W 0.000 0.000 0.000 0.000 0.000 0.224 0.279 0.000 0.000 0.503 WNW 0.000 0.000 0.000 0.000 0.000 0.224 0.224 0.056 0.000 0.503 NW 0.000 0.000 0.000 0.000 0.000 0.112 0.056 0.000 0.000 0.168 NNW 0.000 0.000 0.000 0.000 0.000 0.056 0.224 0.000 0.000 0.279 SUBTOTAL 0.000 0.000 0.000 0.279 0.391 1.174 1.342 0.335 0.112 3.633 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2095 TOTAL HOURS OF STABILITY CLASS C 72 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 65 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1789 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/05/03 MEAN WIND SPEED = 12.64 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-140

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.056 0.447 1.174 2.739 0.279 0.000 4.695 NNE 0.000 0.000 0.224 0.391 0.559 1.453 0.224 0.000 0.000 2.851 NE 0.000 0.000 0.056 0.279 0.447 0.503 0.056 0.000 0.000 1.342 ENE 0.000 0.000 0.056 0.056 0.224 0.224 0.112 0.000 0.000 0.671 E 0.000 0.000 0.000 0.335 0.056 0.559 0.112 0.056 0.000 1.118 ESE 0.000 0.000 0.112 0.279 0.168 0.615 0.615 0.112 0.056 1.956 SE 0.000 0.000 0.112 0.335 0.168 0.224 0.783 0.727 1.006 3.354 SSE 0.000 0.000 0.168 0.335 0.335 0.224 0.447 0.168 0.000 1.677 S 0.000 0.000 0.112 0.112 0.112 0.056 0.224 0.168 0.000 0.783 SSW 0.000 0.000 0.224 0.279 0.279 0.335 0.615 0.168 0.000 1.901 SW 0.000 0.000 0.112 0.168 0.168 0.224 0.224 0.000 0.000 0.894 WSW 0.000 0.056 0.168 0.335 0.168 0.224 0.279 0.279 0.000 1.509 W 0.000 0.000 0.112 0.112 0.447 0.783 1.230 0.056 0.112 2.851 WNW 0.000 0.000 0.056 0.224 0.391 1.062 1.286 0.894 0.391 4.304 NW 0.000 0.000 0.056 0.056 0.056 0.615 2.292 1.118 0.112 4.304 NNW 0.000 0.000 0.056 0.056 0.335 0.838 1.342 0.447 0.056 3.130 SUBTOTAL 0.000 0.056 1.621 3.410 4.360 9.111 12.577 4.472 1.733 37.339 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2095 TOTAL HOURS OF STABILITY CLASS D 818 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 668 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1789 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/05/03 MEAN WIND SPEED = 12.63 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-141

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.056 0.000 0.056 1.230 0.783 0.000 0.000 2.124 NNE 0.000 0.000 0.112 0.112 0.168 0.783 0.894 0.056 0.000 2.124 NE 0.000 0.000 0.000 0.224 0.224 0.838 0.559 0.000 0.000 1.845 ENE 0.000 0.000 0.279 0.112 0.056 0.335 0.112 0.000 0.000 0.894 E 0.000 0.000 0.056 0.112 0.279 0.335 0.112 0.000 0.000 0.894 ESE 0.000 0.000 0.056 0.224 0.168 0.447 1.286 0.559 0.056 2.795 SE 0.000 0.000 0.056 0.224 0.168 1.006 2.683 1.062 0.279 5.478 SSE 0.000 0.000 0.056 0.279 0.335 1.789 2.124 1.286 0.224 6.093 S 0.000 0.056 0.000 0.168 0.168 0.894 2.348 1.397 0.279 5.310 SSW 0.000 0.056 0.056 0.000 0.168 0.559 1.565 0.671 0.000 3.074 SW 0.000 0.000 0.000 0.000 0.279 0.783 1.062 0.168 0.000 2.292 WSW 0.000 0.000 0.000 0.056 0.000 0.391 0.727 0.168 0.000 1.342 W 0.000 0.000 0.000 0.056 0.056 0.279 0.168 0.056 0.000 0.615 WNW 0.000 0.000 0.000 0.168 0.056 0.503 0.056 0.112 0.000 0.894 NW 0.000 0.000 0.056 0.000 0.056 0.447 1.006 0.335 0.000 1.901 NNW 0.000 0.000 0.112 0.000 0.056 0.783 1.062 0.056 0.000 2.068 SUBTOTAL 0.000 0.112 0.894 1.733 2.292 11.403 16.546 5.925 0.838 39.743 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2095 TOTAL HOURS OF STABILITY CLASS E 803 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 711 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1789 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/05/03 MEAN WIND SPEED = 13.51 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-142

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.056 0.335 0.279 0.000 0.000 0.671 NNE 0.000 0.000 0.000 0.056 0.056 0.056 0.391 0.000 0.000 0.559 NE 0.000 0.000 0.000 0.000 0.056 0.000 0.279 0.000 0.000 0.335 ENE 0.000 0.000 0.000 0.000 0.112 0.112 0.056 0.000 0.000 0.279 E 0.000 0.000 0.000 0.000 0.056 0.335 0.056 0.000 0.000 0.447 ESE 0.000 0.000 0.000 0.056 0.000 0.447 0.335 0.056 0.000 0.894 SE 0.000 0.000 0.056 0.056 0.056 0.391 1.677 0.727 0.000 2.963 SSE 0.000 0.000 0.000 0.112 0.056 0.447 2.404 1.006 0.112 4.136 S 0.000 0.000 0.056 0.000 0.056 0.391 1.286 0.224 0.000 2.012 SSW 0.000 0.000 0.000 0.000 0.000 0.168 0.168 0.056 0.000 0.391 SW 0.000 0.000 0.000 0.000 0.224 0.056 0.000 0.000 0.000 0.279 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.056 0.000 0.000 0.000 0.000 0.056 WNW 0.000 0.000 0.000 0.000 0.000 0.056 0.000 0.000 0.000 0.056 NW 0.000 0.000 0.000 0.000 0.112 0.112 0.112 0.000 0.000 0.335 NNW 0.000 0.000 0.000 0.000 0.112 0.391 0.447 0.056 0.000 1.006 SUBTOTAL 0.000 0.000 0.112 0.279 1.006 3.298 7.490 2.124 0.112 14.421 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2095 TOTAL HOURS OF STABILITY CLASS F 300 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 258 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1789 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/05/03 MEAN WIND SPEED = 14.06 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-143

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1, 2018 - MAR 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.056 0.000 0.000 0.000 0.000 0.056 ENE 0.000 0.000 0.000 0.000 0.000 0.056 0.000 0.000 0.000 0.056 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.056 0.168 0.056 0.000 0.000 0.279 SE 0.000 0.000 0.000 0.056 0.000 0.000 0.168 0.000 0.000 0.224 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.391 0.279 0.000 0.671 S 0.000 0.000 0.000 0.056 0.000 0.000 0.000 0.000 0.000 0.056 SSW 0.000 0.000 0.000 0.000 0.168 0.000 0.000 0.000 0.000 0.168 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.112 0.279 0.224 0.615 0.279 0.000 1.509 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2095 TOTAL HOURS OF STABILITY CLASS G 30 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 27 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1789 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/05/03 MEAN WIND SPEED = 13.77 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-144

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT BROWNS FERRY NUCLEAR PLANT 2018 METEOROLOGICAL DATA TABLE 9B JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR ELEVATED RELEASES SECOND QUARTER E-145

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.057 0.000 0.000 0.057 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.057 0.170 0.000 0.000 0.000 0.227 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.057 0.170 0.057 0.000 0.000 0.284 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 1760 TOTAL HOURS OF STABILITY CLASS A 5 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 5 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1760 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/08/07 MEAN WIND SPEED = 10.54 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-146

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.057 0.000 0.000 0.057 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.227 0.000 0.000 0.227 SE 0.000 0.000 0.000 0.057 0.000 0.057 0.000 0.000 0.000 0.114 SSE 0.000 0.000 0.000 0.057 0.000 0.170 0.057 0.000 0.000 0.284 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.057 0.114 0.000 0.057 0.227 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.114 0.000 0.000 0.114 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.170 0.000 0.000 0.170 SUBTOTAL 0.000 0.000 0.000 0.114 0.000 0.284 0.739 0.000 0.057 1.193 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 1760 TOTAL HOURS OF STABILITY CLASS B 21 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 21 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1760 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/08/07 MEAN WIND SPEED = 13.02 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-147

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.114 0.057 0.000 0.000 0.170 NNE 0.000 0.000 0.000 0.000 0.000 0.227 0.057 0.000 0.000 0.284 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.057 0.227 0.114 0.114 0.000 0.000 0.511 SE 0.000 0.000 0.000 0.170 0.227 0.170 0.000 0.000 0.000 0.568 SSE 0.000 0.000 0.000 0.057 0.057 0.000 0.057 0.000 0.000 0.170 S 0.000 0.000 0.000 0.114 0.057 0.057 0.114 0.000 0.000 0.341 SSW 0.000 0.000 0.000 0.000 0.000 0.455 0.114 0.057 0.000 0.625 SW 0.000 0.000 0.000 0.000 0.170 0.170 0.114 0.000 0.000 0.455 WSW 0.000 0.000 0.000 0.000 0.057 0.170 0.114 0.000 0.000 0.341 W 0.000 0.000 0.000 0.000 0.000 0.057 0.284 0.000 0.000 0.341 WNW 0.000 0.000 0.000 0.000 0.000 0.057 0.114 0.000 0.000 0.170 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.170 0.000 0.000 0.170 NNW 0.000 0.000 0.000 0.000 0.000 0.114 0.227 0.000 0.000 0.341 SUBTOTAL 0.000 0.000 0.000 0.398 0.795 1.705 1.534 0.057 0.000 4.489 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 1760 TOTAL HOURS OF STABILITY CLASS C 79 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 79 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1760 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/08/07 MEAN WIND SPEED = 10.65 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-148

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.170 0.227 0.398 0.625 0.114 0.057 0.000 1.591 NNE 0.000 0.000 0.000 0.227 0.341 0.455 0.170 0.000 0.000 1.193 NE 0.000 0.000 0.000 0.114 0.000 0.284 0.341 0.284 0.057 1.080 ENE 0.000 0.000 0.170 0.000 0.114 0.625 0.057 0.057 0.057 1.080 E 0.000 0.000 0.170 0.170 0.057 0.341 0.114 0.227 0.114 1.193 ESE 0.000 0.000 0.170 0.511 0.568 0.341 0.739 0.455 0.057 2.841 SE 0.000 0.000 0.398 0.511 0.568 0.284 0.227 0.057 0.057 2.102 SSE 0.000 0.000 0.284 0.625 0.170 2.045 0.739 0.170 0.057 4.091 S 0.000 0.000 0.739 0.966 0.909 2.330 1.420 0.114 0.057 6.534 SSW 0.000 0.000 0.682 0.909 1.136 1.307 0.795 0.057 0.000 4.886 SW 0.000 0.000 0.625 0.852 0.341 1.534 0.284 0.057 0.057 3.750 WSW 0.000 0.000 0.511 0.909 0.795 0.966 0.795 0.284 0.000 4.261 W 0.000 0.000 0.455 0.341 0.795 1.705 0.568 0.057 0.000 3.920 WNW 0.000 0.000 0.170 0.455 1.193 2.330 0.739 0.057 0.000 4.943 NW 0.000 0.000 0.057 0.398 0.568 0.966 0.739 0.114 0.000 2.841 NNW 0.000 0.000 0.170 0.170 0.455 0.909 0.398 0.000 0.000 2.102 SUBTOTAL 0.000 0.000 4.773 7.386 8.409 17.045 8.239 2.045 0.511 48.409 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 1760 TOTAL HOURS OF STABILITY CLASS D 852 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 852 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1760 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/08/07 MEAN WIND SPEED = 9.13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-149

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.057 0.284 0.227 0.511 0.682 0.057 0.057 1.875 NNE 0.000 0.000 0.057 0.000 0.170 0.511 0.284 0.000 0.000 1.023 NE 0.000 0.000 0.170 0.114 0.398 0.511 0.170 0.057 0.000 1.420 ENE 0.000 0.000 0.057 0.000 0.398 0.341 0.114 0.000 0.000 0.909 E 0.000 0.000 0.114 0.057 0.114 0.455 0.341 0.057 0.000 1.136 ESE 0.000 0.057 0.227 0.057 0.341 0.909 0.455 0.057 0.114 2.216 SE 0.000 0.000 0.170 0.511 0.511 1.364 0.455 0.227 0.057 3.295 SSE 0.000 0.000 0.057 0.455 0.511 0.966 0.966 0.000 0.057 3.011 S 0.000 0.000 0.170 0.455 0.511 0.966 1.080 0.227 0.057 3.466 SSW 0.000 0.057 0.057 0.227 0.170 0.966 0.739 0.000 0.000 2.216 SW 0.000 0.057 0.284 0.170 0.455 0.284 0.284 0.000 0.000 1.534 WSW 0.000 0.000 0.170 0.227 0.341 0.511 0.114 0.000 0.000 1.364 W 0.000 0.057 0.170 0.057 0.057 1.023 0.455 0.000 0.000 1.818 WNW 0.000 0.000 0.114 0.284 0.398 0.455 0.000 0.057 0.000 1.307 NW 0.000 0.000 0.000 0.170 0.114 0.455 0.341 0.057 0.000 1.136 NNW 0.000 0.000 0.227 0.170 0.227 0.682 0.227 0.170 0.000 1.705 SUBTOTAL 0.000 0.227 2.102 3.239 4.943 10.909 6.705 0.966 0.341 29.432 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 1760 TOTAL HOURS OF STABILITY CLASS E 518 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 518 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1760 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/08/07 MEAN WIND SPEED = 9.86 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-150

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.057 0.227 0.057 0.114 0.114 0.568 0.000 0.000 1.136 NNE 0.000 0.057 0.170 0.000 0.114 0.284 0.682 0.114 0.000 1.420 NE 0.000 0.000 0.114 0.000 0.057 0.398 0.057 0.284 0.000 0.909 ENE 0.000 0.000 0.057 0.057 0.170 0.170 0.398 0.000 0.000 0.852 E 0.000 0.057 0.057 0.000 0.000 0.057 0.057 0.000 0.000 0.227 ESE 0.000 0.000 0.000 0.114 0.057 0.227 0.114 0.000 0.000 0.511 SE 0.000 0.000 0.114 0.114 0.284 0.170 0.000 0.000 0.000 0.682 SSE 0.000 0.000 0.114 0.114 0.057 0.341 0.625 0.000 0.000 1.250 S 0.000 0.000 0.057 0.114 0.170 0.170 0.795 0.114 0.000 1.420 SSW 0.000 0.000 0.000 0.114 0.057 0.114 0.341 0.170 0.000 0.795 SW 0.000 0.000 0.000 0.170 0.000 0.341 0.000 0.000 0.000 0.511 WSW 0.000 0.000 0.000 0.057 0.057 0.114 0.000 0.000 0.000 0.227 W 0.000 0.000 0.057 0.170 0.227 0.000 0.000 0.000 0.000 0.455 WNW 0.000 0.000 0.170 0.057 0.170 0.114 0.000 0.000 0.000 0.511 NW 0.000 0.000 0.000 0.114 0.114 0.398 0.057 0.000 0.000 0.682 NNW 0.000 0.000 0.170 0.057 0.057 0.398 0.284 0.000 0.000 0.966 SUBTOTAL 0.000 0.170 1.307 1.307 1.705 3.409 3.977 0.682 0.000 12.557 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 1760 TOTAL HOURS OF STABILITY CLASS F 221 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 221 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1760 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/08/07 MEAN WIND SPEED = 10.24 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-151

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1, 2018 - JUN 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.057 0.000 0.000 0.000 0.284 0.000 0.000 0.341 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.114 0.057 0.000 0.170 NE 0.000 0.000 0.000 0.000 0.057 0.057 0.000 0.000 0.000 0.114 ENE 0.000 0.000 0.114 0.057 0.000 0.000 0.057 0.000 0.000 0.227 E 0.000 0.000 0.000 0.000 0.000 0.114 0.000 0.000 0.000 0.114 ESE 0.000 0.057 0.000 0.114 0.170 0.000 0.000 0.000 0.000 0.341 SE 0.000 0.000 0.057 0.057 0.000 0.000 0.000 0.000 0.000 0.114 SSE 0.000 0.000 0.057 0.057 0.114 0.568 0.170 0.000 0.000 0.966 S 0.000 0.000 0.000 0.000 0.057 0.000 0.114 0.000 0.000 0.170 SSW 0.000 0.000 0.000 0.057 0.000 0.000 0.000 0.000 0.000 0.057 SW 0.000 0.057 0.000 0.227 0.000 0.000 0.000 0.000 0.000 0.284 WSW 0.000 0.000 0.000 0.114 0.000 0.000 0.000 0.000 0.000 0.114 W 0.000 0.000 0.057 0.057 0.114 0.000 0.000 0.000 0.000 0.227 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.057 0.057 0.000 0.057 0.057 0.000 0.000 0.000 0.227 NNW 0.000 0.000 0.057 0.057 0.000 0.057 0.000 0.000 0.000 0.170 SUBTOTAL 0.000 0.170 0.455 0.795 0.568 0.852 0.739 0.057 0.000 3.636 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 1760 TOTAL HOURS OF STABILITY CLASS G 64 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 64 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1760 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/08/07 MEAN WIND SPEED = 7.97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-152

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT BROWNS FERRY NUCLEAR PLANT 2018 METEOROLOGICAL DATA TABLE 9C JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR ELEVATED RELEASES THIRD QUARTER E-153

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.182 0.454 0.091 0.000 0.727 SE 0.000 0.000 0.000 0.045 0.000 0.182 0.045 0.000 0.000 0.272 SSE 0.000 0.000 0.000 0.000 0.272 0.318 0.000 0.000 0.000 0.590 S 0.000 0.000 0.000 0.000 0.000 0.363 0.000 0.045 0.000 0.409 SSW 0.000 0.000 0.000 0.045 0.045 0.091 0.136 0.000 0.000 0.318 SW 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.045 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.045 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.091 0.318 1.181 0.681 0.136 0.000 2.407 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS A 53 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 53 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/11/05 MEAN WIND SPEED = 11.55 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-154

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.136 0.136 0.000 0.000 0.272 NNE 0.000 0.000 0.000 0.000 0.000 0.091 0.045 0.000 0.000 0.136 NE 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.045 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.091 0.227 0.182 0.091 0.000 0.000 0.590 SE 0.000 0.000 0.045 0.409 0.227 0.136 0.091 0.000 0.000 0.908 SSE 0.000 0.000 0.045 0.136 0.136 0.136 0.000 0.000 0.000 0.454 S 0.000 0.000 0.000 0.000 0.182 0.136 0.182 0.000 0.000 0.500 SSW 0.000 0.000 0.000 0.000 0.045 0.091 0.091 0.000 0.000 0.227 SW 0.000 0.000 0.000 0.000 0.000 0.091 0.000 0.000 0.000 0.091 WSW 0.000 0.000 0.000 0.000 0.000 0.045 0.045 0.000 0.000 0.091 W 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.045 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.091 0.727 0.817 1.045 0.681 0.000 0.000 3.361 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS B 74 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 74 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/11/05 MEAN WIND SPEED = 8.64 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-155

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.500 0.318 0.000 0.000 0.817 NNE 0.000 0.000 0.000 0.000 0.091 0.272 0.000 0.000 0.000 0.363 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.227 0.409 0.363 0.227 0.045 0.000 1.272 SE 0.000 0.000 0.045 0.227 0.590 0.272 0.045 0.000 0.000 1.181 SSE 0.000 0.000 0.000 0.182 0.136 0.136 0.000 0.000 0.000 0.454 S 0.000 0.000 0.045 0.182 0.000 0.227 0.136 0.000 0.000 0.590 SSW 0.000 0.000 0.000 0.045 0.136 0.227 0.045 0.000 0.000 0.454 SW 0.000 0.000 0.045 0.182 0.000 0.045 0.000 0.000 0.000 0.272 WSW 0.000 0.000 0.045 0.045 0.000 0.136 0.091 0.000 0.000 0.318 W 0.000 0.000 0.000 0.045 0.000 0.091 0.136 0.045 0.000 0.318 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.045 0.000 0.136 NW 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.045 NNW 0.000 0.000 0.000 0.000 0.000 0.272 0.045 0.000 0.000 0.318 SUBTOTAL 0.000 0.000 0.182 1.135 1.362 2.589 1.135 0.136 0.000 6.540 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS C 144 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 144 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/11/05 MEAN WIND SPEED = 8.91 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-156

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.091 0.363 0.272 1.589 0.318 0.000 0.000 2.634 NNE 0.000 0.000 0.182 0.500 0.545 1.090 0.500 0.000 0.000 2.816 NE 0.000 0.000 0.045 0.545 0.136 0.272 0.091 0.000 0.000 1.090 ENE 0.000 0.000 0.136 0.091 0.091 0.272 0.045 0.000 0.000 0.636 E 0.000 0.045 0.091 0.091 0.272 0.454 0.136 0.000 0.000 1.090 ESE 0.000 0.000 0.272 0.636 0.454 1.317 0.681 0.136 0.000 3.497 SE 0.000 0.045 0.454 0.727 0.409 0.908 0.727 0.182 0.000 3.451 SSE 0.000 0.000 0.363 0.636 0.681 1.135 0.863 0.227 0.000 3.906 S 0.000 0.000 0.363 0.454 0.363 1.771 0.772 0.136 0.000 3.860 SSW 0.000 0.000 0.727 0.681 0.681 1.680 0.681 0.136 0.000 4.587 SW 0.000 0.000 0.727 0.954 0.908 0.863 0.000 0.000 0.000 3.451 WSW 0.000 0.000 0.500 1.135 0.817 0.908 0.136 0.045 0.000 3.542 W 0.000 0.000 0.182 0.727 1.045 1.045 0.363 0.045 0.000 3.406 WNW 0.000 0.000 0.091 0.409 0.454 0.681 0.590 0.136 0.000 2.361 NW 0.000 0.000 0.091 0.272 0.182 0.182 0.272 0.000 0.000 0.999 NNW 0.000 0.000 0.227 0.409 0.227 1.181 0.454 0.000 0.000 2.498 SUBTOTAL 0.000 0.091 4.541 8.629 7.539 15.350 6.630 1.045 0.000 43.824 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS D 965 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 965 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/11/05 MEAN WIND SPEED = 8.36 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-157

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.045 0.182 0.136 0.681 1.090 0.045 0.000 2.180 NNE 0.000 0.000 0.045 0.136 0.454 0.817 0.908 0.045 0.000 2.407 NE 0.000 0.000 0.045 0.363 0.272 0.318 0.409 0.000 0.000 1.408 ENE 0.000 0.000 0.045 0.182 0.045 0.227 0.136 0.091 0.000 0.727 E 0.000 0.000 0.272 0.227 0.182 0.636 0.727 0.000 0.000 2.044 ESE 0.000 0.000 0.045 0.272 0.272 1.953 1.907 0.091 0.000 4.541 SE 0.000 0.000 0.136 0.272 0.545 2.679 1.045 0.182 0.000 4.859 SSE 0.000 0.000 0.045 0.227 0.772 1.408 0.772 0.000 0.000 3.224 S 0.000 0.000 0.136 0.272 0.363 0.772 0.454 0.045 0.000 2.044 SSW 0.000 0.000 0.182 0.136 0.272 0.363 0.545 0.000 0.000 1.499 SW 0.000 0.000 0.045 0.091 0.227 0.136 0.045 0.000 0.000 0.545 WSW 0.000 0.000 0.136 0.272 0.091 0.091 0.000 0.000 0.000 0.590 W 0.000 0.000 0.227 0.272 0.091 0.045 0.000 0.000 0.000 0.636 WNW 0.000 0.000 0.091 0.272 0.136 0.136 0.000 0.000 0.000 0.636 NW 0.000 0.045 0.045 0.182 0.091 0.091 0.136 0.000 0.000 0.590 NNW 0.000 0.000 0.000 0.000 0.272 0.409 0.454 0.045 0.000 1.181 SUBTOTAL 0.000 0.045 1.544 3.361 4.223 10.763 8.629 0.545 0.000 29.110 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS E 641 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 641 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/11/05 MEAN WIND SPEED = 10.08 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-158

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.045 0.045 0.000 0.227 1.090 0.045 0.000 1.453 NNE 0.000 0.000 0.000 0.136 0.000 0.318 0.454 0.227 0.000 1.135 NE 0.000 0.045 0.045 0.091 0.091 0.409 0.636 0.000 0.000 1.317 ENE 0.000 0.000 0.091 0.318 0.136 0.363 0.454 0.091 0.000 1.453 E 0.000 0.000 0.045 0.182 0.182 0.545 0.182 0.000 0.000 1.135 ESE 0.000 0.000 0.182 0.136 0.272 0.272 0.182 0.000 0.000 1.045 SE 0.000 0.000 0.182 0.545 0.136 0.590 0.091 0.000 0.000 1.544 SSE 0.000 0.000 0.182 0.454 0.363 0.227 0.091 0.000 0.000 1.317 S 0.000 0.000 0.045 0.136 0.182 0.045 0.000 0.000 0.000 0.409 SSW 0.000 0.000 0.272 0.045 0.045 0.045 0.091 0.000 0.000 0.500 SW 0.000 0.000 0.045 0.136 0.091 0.045 0.000 0.000 0.000 0.318 WSW 0.000 0.000 0.091 0.091 0.000 0.045 0.000 0.000 0.000 0.227 W 0.000 0.000 0.136 0.045 0.000 0.045 0.000 0.000 0.000 0.227 WNW 0.000 0.000 0.091 0.091 0.000 0.045 0.000 0.000 0.000 0.227 NW 0.000 0.000 0.091 0.000 0.045 0.000 0.000 0.000 0.000 0.136 NNW 0.000 0.045 0.091 0.091 0.045 0.182 0.091 0.000 0.000 0.545 SUBTOTAL 0.000 0.091 1.635 2.543 1.589 3.406 3.361 0.363 0.000 12.988 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS F 286 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 286 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/11/05 MEAN WIND SPEED = 9.02 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-159

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1, 2018 - SEP 30, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.045 NNE 0.000 0.000 0.045 0.045 0.000 0.045 0.045 0.000 0.000 0.182 NE 0.000 0.000 0.000 0.091 0.045 0.227 0.000 0.045 0.000 0.409 ENE 0.000 0.000 0.000 0.000 0.000 0.136 0.045 0.000 0.000 0.182 E 0.000 0.000 0.136 0.136 0.045 0.000 0.000 0.000 0.000 0.318 ESE 0.000 0.045 0.045 0.045 0.000 0.000 0.000 0.000 0.000 0.136 SE 0.000 0.045 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.136 SSE 0.000 0.000 0.045 0.000 0.091 0.000 0.000 0.000 0.000 0.136 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.091 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.091 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.136 0.454 0.409 0.182 0.454 0.091 0.045 0.000 1.771 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS G 39 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 39 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2018/11/05 MEAN WIND SPEED = 6.18 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-160

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT BROWNS FERRY NUCLEAR PLANT 2018 METEOROLOGICAL DATA TABLE 9D JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR ELEVATED RELEASES FOURTH QUARTER E-161

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.097 0.000 0.000 0.000 0.000 0.097 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.097 0.000 0.000 0.000 0.000 0.097 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2058 TOTAL HOURS OF STABILITY CLASS A 2 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 2 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2058 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2019/02/14 MEAN WIND SPEED = 6.65 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-162

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.049 0.097 SSE 0.000 0.000 0.000 0.000 0.000 0.097 0.000 0.049 0.049 0.194 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.049 0.097 0.000 0.049 0.097 0.292 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2058 TOTAL HOURS OF STABILITY CLASS B 6 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 6 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2058 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2019/02/14 MEAN WIND SPEED = 17.47 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-163

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.049 0.097 0.000 0.000 0.146 NNE 0.000 0.000 0.000 0.000 0.000 0.049 0.243 0.000 0.000 0.292 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.194 0.049 0.097 0.049 0.000 0.000 0.389 SE 0.000 0.000 0.000 0.097 0.097 0.049 0.049 0.000 0.049 0.340 SSE 0.000 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.049 S 0.000 0.000 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.049 SSW 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.049 SW 0.000 0.000 0.000 0.049 0.049 0.000 0.000 0.000 0.000 0.097 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.097 0.049 0.000 0.146 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.389 0.243 0.292 0.534 0.049 0.049 1.555 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2058 TOTAL HOURS OF STABILITY CLASS C 32 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 32 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2058 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2019/02/14 MEAN WIND SPEED = 10.79 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-164

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.146 0.097 0.437 2.624 1.749 0.097 0.000 5.151 NNE 0.000 0.000 0.000 0.389 0.486 2.430 1.166 0.000 0.000 4.470 NE 0.000 0.000 0.049 0.146 0.194 0.875 0.632 0.000 0.000 1.895 ENE 0.000 0.049 0.049 0.243 0.340 0.389 0.146 0.049 0.000 1.263 E 0.000 0.000 0.097 0.340 0.243 0.243 0.534 0.097 0.000 1.555 ESE 0.000 0.000 0.292 0.583 0.534 1.069 1.798 1.069 0.049 5.394 SE 0.000 0.000 0.194 0.583 0.146 0.437 1.166 1.069 0.534 4.130 SSE 0.000 0.049 0.194 0.292 0.194 0.486 0.292 0.292 0.049 1.846 S 0.000 0.000 0.340 0.097 0.194 0.486 0.292 0.194 0.049 1.652 SSW 0.000 0.049 0.097 0.194 0.000 0.583 0.486 0.049 0.000 1.458 SW 0.000 0.000 0.583 0.194 0.194 0.632 0.097 0.000 0.000 1.701 WSW 0.000 0.049 0.146 0.534 0.243 0.777 0.729 0.097 0.000 2.575 W 0.000 0.000 0.146 0.340 0.632 1.020 1.409 0.292 0.292 4.130 WNW 0.000 0.049 0.243 0.340 0.097 1.215 2.235 0.826 0.437 5.442 NW 0.000 0.000 0.000 0.243 0.097 1.603 3.547 0.632 0.049 6.171 NNW 0.000 0.000 0.000 0.000 0.437 1.409 1.361 0.194 0.000 3.401 SUBTOTAL 0.000 0.243 2.575 4.616 4.470 16.278 17.638 4.956 1.458 52.235 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2058 TOTAL HOURS OF STABILITY CLASS D 1075 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 1075 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2058 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2019/02/14 MEAN WIND SPEED = 12.07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-165

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.049 0.292 0.437 0.826 0.146 0.000 1.749 NNE 0.000 0.000 0.097 0.194 0.049 0.389 0.875 0.146 0.000 1.749 NE 0.000 0.049 0.000 0.049 0.049 0.292 0.194 0.292 0.000 0.923 ENE 0.000 0.049 0.049 0.097 0.146 0.194 0.049 0.000 0.000 0.583 E 0.000 0.000 0.000 0.000 0.000 0.534 0.826 0.097 0.000 1.458 ESE 0.000 0.000 0.049 0.194 0.097 0.729 2.332 1.020 0.437 4.859 SE 0.000 0.000 0.194 0.340 0.437 0.923 1.361 0.486 0.729 4.470 SSE 0.000 0.049 0.049 0.097 0.437 1.361 1.312 0.632 0.534 4.470 S 0.000 0.000 0.049 0.146 0.389 1.020 0.292 0.243 0.389 2.527 SSW 0.000 0.000 0.049 0.097 0.389 0.389 0.000 0.049 0.000 0.972 SW 0.000 0.000 0.146 0.097 0.194 0.437 0.049 0.000 0.000 0.923 WSW 0.000 0.000 0.049 0.049 0.146 0.097 0.243 0.000 0.000 0.583 W 0.000 0.000 0.049 0.243 0.097 0.534 0.049 0.000 0.000 0.972 WNW 0.000 0.000 0.000 0.049 0.243 0.243 0.194 0.049 0.000 0.777 NW 0.000 0.000 0.000 0.097 0.097 0.340 0.680 0.097 0.000 1.312 NNW 0.000 0.000 0.049 0.000 0.000 0.340 1.020 0.049 0.000 1.458 SUBTOTAL 0.000 0.146 0.826 1.798 3.061 8.260 10.301 3.304 2.089 29.786 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2058 TOTAL HOURS OF STABILITY CLASS E 613 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 613 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2058 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2019/02/14 MEAN WIND SPEED = 13.42 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-166

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.292 0.194 0.000 0.000 0.486 NNE 0.000 0.000 0.049 0.000 0.049 0.292 0.340 0.097 0.000 0.826 NE 0.000 0.000 0.000 0.049 0.000 0.243 0.049 0.049 0.000 0.389 ENE 0.000 0.000 0.000 0.000 0.000 0.243 0.146 0.049 0.000 0.437 E 0.000 0.000 0.000 0.049 0.049 0.097 0.146 0.000 0.000 0.340 ESE 0.000 0.097 0.146 0.194 0.146 0.243 0.243 0.000 0.000 1.069 SE 0.000 0.000 0.146 0.243 0.194 0.826 0.340 0.049 0.000 1.798 SSE 0.000 0.000 0.194 0.194 0.097 0.389 0.292 0.486 0.097 1.749 S 0.000 0.000 0.292 0.194 0.194 0.777 0.049 0.049 0.097 1.652 SSW 0.000 0.000 0.146 0.146 0.049 0.097 0.000 0.000 0.000 0.437 SW 0.000 0.000 0.049 0.049 0.146 0.000 0.000 0.000 0.000 0.243 WSW 0.000 0.000 0.097 0.000 0.049 0.049 0.000 0.000 0.000 0.194 W 0.000 0.000 0.000 0.243 0.097 0.049 0.049 0.000 0.000 0.437 WNW 0.000 0.000 0.000 0.097 0.049 0.194 0.000 0.000 0.000 0.340 NW 0.000 0.000 0.000 0.000 0.049 0.049 0.049 0.000 0.000 0.146 NNW 0.000 0.000 0.000 0.049 0.000 0.097 0.243 0.049 0.000 0.437 SUBTOTAL 0.000 0.097 1.118 1.506 1.166 3.936 2.138 0.826 0.194 10.982 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2058 TOTAL HOURS OF STABILITY CLASS F 226 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 226 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2058 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2019/02/14 MEAN WIND SPEED = 10.21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-167

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1, 2018 - DEC 31, 2018 WIND WIND SPEED(MPH)

DIRECTION CALM 0.60-1.40 1.41-3.40 3.41-5.40 5.41-7.40 7.41-12.40 12.41-18.40 18.41-24.40 >=24.41 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.194 0.049 0.000 0.000 0.243 NNE 0.000 0.000 0.049 0.000 0.000 0.146 0.146 0.243 0.000 0.583 NE 0.000 0.049 0.049 0.049 0.000 0.194 0.389 0.000 0.000 0.729 ENE 0.000 0.000 0.049 0.049 0.000 0.049 0.000 0.000 0.000 0.146 E 0.000 0.000 0.097 0.097 0.000 0.049 0.000 0.000 0.000 0.243 ESE 0.000 0.049 0.097 0.146 0.049 0.194 0.000 0.000 0.000 0.534 SE 0.000 0.000 0.049 0.340 0.097 0.292 0.049 0.000 0.000 0.826 SSE 0.000 0.000 0.146 0.243 0.000 0.097 0.000 0.000 0.000 0.486 S 0.000 0.049 0.097 0.292 0.049 0.049 0.000 0.000 0.000 0.534 SSW 0.000 0.000 0.000 0.243 0.146 0.000 0.000 0.000 0.000 0.389 SW 0.000 0.049 0.049 0.000 0.000 0.000 0.000 0.000 0.000 0.097 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.000 0.049 WNW 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.049 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.049 0.049 0.049 0.000 0.000 0.000 0.146 SUBTOTAL 0.000 0.194 0.729 1.555 0.389 1.312 0.632 0.243 0.000 5.053 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2058 TOTAL HOURS OF STABILITY CLASS G 104 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 104 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2058 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2019/02/14 MEAN WIND SPEED = 7.73 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E-168

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Attachment 1 Deviations from ODCM Controls and Surveillance Requirements This report is to comply with Browns Ferry Nuclear Plant Offsite Dose Calculation Manual (ODCM). The ODCM requires that all deviations be reported in the Annual Radioactive Effluent Release Report.

During the reporting period, January 1, 2018 through December 31, 2018, there was one deviation from the ODCM.

The 1-RM-90-132D, Raw Cooling Water (RCW) Radiation Monitor, was inoperable due to low sample flow through the monitor (LCOT 1-090-ODCM-2018-0016), therefore chemistry sampled the Unit 1 RBCCW Heat Exchangers (HX) in service. One sample was missed from the A RBCCW HX due to a miscommunication between Operations to Chemistry (CR 1459430, 1459702). Chemistry sampled the 'B' and Spare RBCCW HX when the 'A' and 'B' RBCCW HXs were the two HXs in service. Samples prior to and after the missed sample were less than the minimum detectable concentration (MDC) for total gamma activity.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Attachment 2 2018 Inoperable Radiological Effluent Instrumentation Report This report is to comply with Browns Ferry Nuclear Plant Offsite Dose Calculation Manual (ODCM) Sections 1/2.1.1 and 1/2.1.2. The ODCM requires the exertion of best efforts to return inoperable instruments to operable status within 30 days. Failure to return such instruments to an operable status within the prescribed interval requires a description in the Annual Radioactive Effluent Release Report.

During the reporting period, January 1, 2018 through December 31, 2018, there were five radiological instruments inoperable for greater than 30 days.

1. The 0-FIC-77-60, Liquid Radwaste Discharge Flow Rate, was inoperable for greater than 30 days a total of two instances in 2018 (CR 1416227, 1459398).

In the first instance, 0-FIC-77-60 was declared inoperable 2/25/2018 due to the discharge flow controller indicating 13 gpm when out of service (CR 1388541, LCOT#

0-077-ODCM-2018-0009). The 0-FIC-77-60 was declared operable 8/10/2018.

In the second instance, the 0-FIC-77-60 was declared inoperable 9/15/2018 during performance of 0-SI-4.8.A.1-1 (CR 1447589, LCOT# 0-077-ODCM-2018-0001). The 0-FIC-77-60 average flow rate was out of tolerance per the Acceptance Criteria and calculations in 0-SI-4.8.A.1-1 (ODCM Table 2.1-1.d, Channel Functional Test). As of 12/31/2018, the monitor has continued to be inoperable.

2. The 0-RM-90-130, Liquid Radwaste Effluent monitor, was declared inoperable 4/28/18 due to the screen being blank (CR 1409373). The monitor was returned to service 6/13/18.
3. The 2-FCV-77-61, Unit 2 Radwaste Discharge Valve Flow Loop, was declared inoperable on 7/14/2016 under LCOT# 2-077-ODCM-2016-0020. 2-SI-4.8.A.3, Automatic Isolation Logic Functional Test of Radwaste Discharge Valve, was not performed as scheduled because Unit 2 was on cooling towers at the time (CR 1190109).

On 11/14/2016, only partial performance with Attachment 3 of 2-SI-4.8.A.3 to be performed at a later date (WO 116798018, 118410520).

On 12/29/16, determination made that work could not be completed as scheduled due to on-going Radwaste upgrades. Performance of Attachment 3 and any other necessary sections of 2-SI-4.8.A.3 will be scheduled following completion of Radwaste upgrades (WO 118315571).

The 2-FCV-7761 Radwaste Discharge Valve Flow Loop still remains inoperable; this inoperability also places the 0-RM-90-130 (Liquid Radwaste Effluent monitor) in a potential LCO if a liquid release is discharged through the Unit 2 CCW discharge canal.

Per ODCM, A system, subsystem, train, component, or device shall be Operable or have Operability when it is capable of performing its specified function(s).

Currently, WO 118064359 is in Ready status to perform the 2-SI-4.8.A.3, Automatic Isolation Logic Functional Test of Radwaste Discharge Valve. All three CCW pumps must be available for performance of 2-SI-4.8.A.3.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Attachment 2 2018 Inoperable Radiological Effluent Instrumentation Report (Continued)

4. The 3-FCV-77-61, Unit 3 Radwaste Discharge Valve Flow Loop, was declared inoperable on 6/18/2013 under LCOT# 3-77-ODCM-2013-0022 due to failed Acceptance Criteria steps during the performance of 3-SI-4.8.A.3,Automatic Isolation Logic Functional Test of Radwaste Discharge Canal Valve 3-FCV-77-61 (CR 946463 and WO 116248474).

The 3-FCV-7761 Radwaste Discharge Valve Flow Loop still remains inoperable; this inoperability also places the 0-RM-90-130 (Liquid Radwaste Effluent monitor) in a potential LCO if a liquid release is discharged through the Unit 3 CCW discharge canal .

Per ODCM, A system, subsystem, train, component, or device shall be Operable or have Operability when it is capable of performing its specified function(s).

Currently, WO 118246364 is in Ready status to perform 3-SI-4.8.A.3. All three CCW pumps must be available for performance of 3-SI-4.8.A.3.

5. The 3-RM-90-132D, Unit 3 Raw Cooling Water radiation monitor, was declared inoperable under LCOT# 3-090-ODCM-00072 on 2/21/2018 due to sample pump trip (CR 1389252). Low sample flow was the most likely cause due to sample pump trip as the unit was in a refueling outage. The 3-RM-90-132D returned operable on 3/28/2018.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Groundwater Protection Program In 2007, the Nuclear Energy Institute (NEI) established the Groundwater Protection Initiative (GPI), NEI 07-07. The Groundwater Protection Initiative was established to 1) improve management of situations involving inadvertent radiological releases that get into groundwater and 2) to improve communication with external stakeholders to enhance trust and confidence on the part of local communities, States, the NRC, and the public in the nuclear industrys commitment to a high standard of public radiation safety and protection of the environment.

This section provides information and sample results from on-site groundwater locations that were sampled in support of the Groundwater Protection Initiative at Browns Ferry Nuclear Plant.

The groundwater wells described in this section are not part of the Radiological Environmental Monitoring Program (REMP).

In the early 2000s, BFN initiated a groundwater study to identify the source low levels of tritium detected on-site. Results from the groundwater study (Investigation of Tritium Releases to Groundwater, 2006), suggest the source of tritiated groundwater was from historical leaks and spills associated with Radwaste/Condensate transfer tunnel. Groundwater and surface water level measurements during the study indicated the return channel and subsequently the Tennessee River will ultimately be recipient to tritiated groundwater discharge from the site. It has been determined that there are no groundwater wells onsite or within 2-miles of the site that are used as a source of drinking water. Groundwater movement in the area has been determined to be from the plant site toward the Tennessee River.

Onsite groundwater monitoring was performed in 2018. The purpose of on-site groundwater monitoring is to ensure timely detection of inadvertent radiological releases to groundwater.

Non-REMP groundwater wells monitor for potential leaks from plant equipment. As part of the GPI, BFN monitored a total of 30 groundwater wells located in the Protected Area and the Owner Controlled Area during 2018. Normal sampling frequencies are quarterly and semiannually with some wells sampled monthly if certain criteria are met or for investigation purposes. Samples are routinely analyzed for environmental level tritium (H-3) and principle gamma emitters (PGE) with selected wells analyzed for Hard-to-Detect (HTD) radionuclides (Gross Alpha, Fe-55, Ni-63, Sr-89, and Sr-90). In support of the groundwater program the site also monitors onsite storm drains, catch basins and surface water.

In 2018, low levels of tritium were detected in on-site groundwater wells as indicated in Table 10, Groundwater Data. This table demonstrates all on-site groundwater wells that indicated detectable tritium concentrations. Tritium concentrations ranged from non-detectable, at less than 127 pCi/L, up to a maximum concentration of 27,900 pCi/L. No other plant related radionuclides were detected in any groundwater well. No activity was detected in any surface water, catch basin, or storm drain in 2018. As determined in the 2006 Groundwater study, the estimated groundwater/channel water dilution ratio is 1:20,000 at a rate of approximately 0.5 gpm. Using the highest measured groundwater tritium concentration in 2018, 27,900 pCi/L (2.79E-05 uCi/mL), the aqueous tritium concentration in the channel, after dilution, would be 1.40E-09 uCi/mL. Assuming 1.40E-09 uCi/mL concentration at a release rate of 0.5 gpm for the entire year results in a total release of approximately 1.40E-06 Curies. This is a small fraction compared to the liquid radwaste releases for 2018.

There were no instances of any on-site spills or leaks that occurred during the reporting period that were communicated to offsite agencies or that met the criteria in NEI 07-07, Appendix A.

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BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Groundwater Protection Program Table 10 - Groundwater Data Tritium Activity Sample Date Well ID (pCi/L) 1st Quarter 2/13/2018 Dewat-A 27,900 2/18/2018 Dewat-A 6,100 3/23/2018 Dewat-A 7,100 2/13/2018 MW-01 10,200 2/16/2018 MW-01 15,300 2/18/2018 MW-01 20,600 3/23/2018 MW-01 21,800 2/13/2018 MW-02 2,770 3/23/2018 MW-02 1,160 2/13/2018 MW-03 480 2/16/2018 MW-03 4,060 3/23/2018 MW-03 848 2/13/2018 MW-04 4,360 2/18/2018 MW-04 10,000 3/23/2018 MW-04 2,310 2/14/2018 MW-07 801 2/14/2018 MW-08 4,270 2/18/2018 MW-08 2,330 2nd Quarter 4/24/2018 Dewat-A 8,210 5/18/2018 Dewat-A 10,500 6/21/2018 Dewat-A 759 4/24/2018 MW-01 10,600 5/18/2018 MW-01 3,450 6/21/2018 MW-01 1,420 4/24/2018 MW-02 628 5/16/2018 MW-02 6,690 6/21/2018 MW-02 790 4/24/2018 MW-03 597 5/16/2018 MW-03 877 4/24/2018 MW-04 2,230 5/18/2018 MW-04 1,340 6/21/2018 MW-04 876 5/16/2018 MW-07 1,080 5/16/2018 MW-08 2,840 E-173

BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 2018 Annual Radioactive EFFLUENT Release REPORT Groundwater Protection Program Table 10 - Groundwater Data (Continued)

Tritium Activity Sample Date Well ID (pCi/L) 3rd Quarter 8/8/2018 Dewat-A 1,670 8/8/2018 MW-01 764 8/8/2018 MW-02 809 8/8/2018 MW-02i 297 8/8/2018 MW-03 779 8/8/2018 MW-04 660 8/7/2018 MW-07 1,450 8/7/2018 MW-08 1,140 8/8/2018 MW-15 320 8/7/2018 MW-19 1,210 8/8/2018 Well 5s 177 4th Quarter 11/7/2018 Dewat-A 1,940 11/7/2018 MW-01 1,660 11/7/2018 MW-02 847 11/7/2018 MW-02i 722 11/7/2018 MW-03 681 11/6/2018 MW-04 794 11/7/2018 MW-07 1,250 11/7/2018 MW-08 1,370 11/8/2018 MW-15 296 11/6/2018 MW-18 330 11/7/2018 MW-19 1,530 11/8/2018 Well 5s 184 E-174

ENCLOSURE 2 Browns Ferry Nuclear Plant Units 1, 2, and 3 Offsite Dose Calculation Manual, Revision 24 See Enclosed

TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT OFFSITE DOSE CALCULATION MANUAL 0-ODCM-001 REVISION 24 PREPARED BY: H. A. Camp PHONE: 2640 RESPONSIBLE ORGANIZATION: RADCHEM, CHEMISTRY APPROVED BY: Glen Pry EFFECTIVE DATE: 1/30/18 LEVEL OF USE: REFERENCE USE QUALITY-RELATED

REVISION LOG Procedure Number: 0-ODCM-001 Revision Number: 0024 Page Affected: 84, 128.

Description of Changes: TR# 025 Revisions to the Liquids section 6.5 (page 84) and Gases section 7.6.1 (page 128) with the methodology from OpenEMS to allow use of a cumulative quarterly dose normalized over 31 days, in addition to an average of the previous month as necessary.

The addition of new equations for the revised sections required renumbering of subsequent equations.

These changes will maintain the levels of radioactive effluent control required by 10 CFR 20.1302, 40 CFR 190, 10 CFR 50.36a, and 10 CFR 50, Appendix I, and not adversely impact the accuracy or reliability of effluent, dose, or setpoint calculations.

0-ODCM-001 Revision 0024 Page 1 of 227 OFFSITE DOSE CALCULATION MANUAL (ODCM)

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Section Page INTRODUCTION ....................................................... 13 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS ................... 15 1/2.0 APPLICABILITY ............................................ 16 1/2.1 INSTRUMENTATION .......................................... 18 1/2.1.1 RADIOACTIVE LIQUID EFFLUENT MONITORING INSTRUMENTATION ... 18 1/2.1.2 RADIOACTIVE GASEOUS EFFLUENT MONITORING INSTRUMENTATION .. 23 1/2.2 RADIOACTIVE EFFLUENTS .................................... 28 1/2.2.1 LIQUID EFFLUENTS ......................................... 28 1/2.2.1.1 CONCENTRATION ............................................ 28 1/2.2.1.2 DOSE ..................................................... 32 1/2.2.1.3 LIQUID RADWASTE TREATMENT SYSTEM ......................... 33 1/2.2.2 GASEOUS EFFLUENTS ........................................ 34 1/2.2.2.1 DOSE RATE ................................................ 34 1/2.2.2.2 DOSE - NOBLE GASES ....................................... 38 1/2.2.2.3 DOSE - I-131, I-133, TRITIUM AND RADIONUCLIDES IN PARTICULATE FORM WITH HALF-LIVES GREATER THAN EIGHT DAYS 39 1/2.2.2.4 GASEOUS RADWASTE TREATMENT ............................... 40 1/2.2.3 TOTAL DOSE ............................................... 41 1/2.3 RADIOLOGICAL ENVIRONMENTAL MONITORING .................... 42 1/2.3.1 MONITORING PROGRAM ....................................... 42 1/2.3.2 LAND USE CENSUS .......................................... 50 1/2.3.3 INTERLABORATORY COMPARISON PROGRAM ....................... 52

0-ODCM-001 Revision 0024 Page 3 of 227 Browns Ferry Nuclear Plant Offsite Dose Calculation Manual TABLE OF CONTENTS (Page 2 of 11)

Section Page BASES ............................................................... 53 1/2.1.1 RADIOACTIVE LIQUID EFFLUENT MONITORING INSTRUMENTATION ... 54 1/2.1.2 RADIOACTIVE GASEOUS EFFLUENT MONITORING INSTRUMENTATION .. 54 1/2.2 RADIOACTIVE EFFLUENTS .................................... 55 1/2.2.1.1 CONCENTRATION ............................................ 55 1/2.2.1.2 DOSE ..................................................... 55 1/2.2.1.3 LIQUID WASTE TREATMENT ................................... 57 1/2.2.2 GASEOUS EFFLUENTS ........................................ 57 1/2.2.2.1 DOSE RATE ................................................ 57 1/2.2.2.2 DOSE - NOBLE GASES ....................................... 58 1/2.2.2.3 DOSE - I-131, I-133, TRITIUM AND RADIONUCLIDES IN PARTICULATE FORM WITH HALF-LIVES GREATER THAN EIGHT DAYS.. 59 1/2.2.2.4 GASEOUS RADWASTE TREATMENT ............................... 60 1/2.2.3 TOTAL DOSE ............................................... 60 1/2.3 RADIOLOGICAL ENVIRONMENTAL MONITORING .................... 60 1/2.3.1 MONITORING PROGRAM ....................................... 60 1/2.3.2 LAND USE CENSUS .......................................... 61 1/2.3.3 INTERLABORATORY COMPARISON PROGRAM ....................... 61 3.0 DEFINITIONS .............................................. 62 3.0.A. CHANNEL CALIBRATION ...................................... 63 3.0.B. CHANNEL FUNCTIONAL TEST .................................. 63 3.0.C. GASEOUS WASTE TREATMENT SYSTEM ........................... 63 3.0.D. DOSE EQUIVALENT I-131 .................................... 63

0-ODCM-001 Revision 0024 Page 4 of 227 Browns Ferry Nuclear Plant Offsite Dose Calculation Manual TABLE OF CONTENTS (Page 3 of 11)

Section Page 3.0.E. MEMBER(S) OF THE PUBLIC .................................. 63 3.0.F. OPERABLE - OPERABILITY ................................... 64 3.0.G. PURGE - PURGING .......................................... 64 3.0.H. RATED POWER .............................................. 64 3.0.I. SITE BOUNDARY ............................................ 64 3.0.J. SOURCE CHECK ............................................. 64 3.0.K. UNRESTRICTED AREA ........................................ 65 3.0.L. VENTING .................................................. 65 3.0.M. CONTROLLED AREA .......................................... 65 3.0.N. RESTRICTED AREA .......................................... 65 3.0.P. MODE ..................................................... 65 4.0 (NOT USED) ............................................... 69 5.0 ADMINISTRATIVE CONTROLS .................................. 70 5.1 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ....... 71 5.2 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT ............... 71 5.3 OFFSITE DOSE CALCULATION MANUAL CHANGES .................. 72 5.4 SPECIAL REPORTS .......................................... 73 5.5 QUALITY ASSURANCE PROCEDURES ............................ 73

0-ODCM-001 Revision 0024 Page 5 of 227 Browns Ferry Nuclear Plant Offsite Dose Calculation Manual TABLE OF CONTENTS (Page 4 of 11)

Section Page 6.0 LIQUID EFFLUENTS ......................................... 74 RELEASE POINTS ...................................................... 75 6.1 LIQUID RELEASES .......................................... 76 6.1.1 Pre-release Analysis/ECL - Sum of the Ratios ............. 76 6.1.2 Release Flow Rate Calculations ........................... 76 6.1.3 Post-release Analysis .................................... 77 6.2 INSTRUMENT SETPOINTS ..................................... 78 6.2.1 Release Point Monitor Allowable Values ................... 78 6.2.2 Default Allowable Values ................................. 79 6.2.2.1 Radwaste Discharge Monitor ............................... 79 6.2.2.2 Raw Cooling Water and Residual Heat Removal Service Water Monitors ........................................... 80 6.3 CUMULATIVE LIQUID EFFLUENT DOSE CALCULATION .............. 81 6.3.1 Dose Calculation ......................................... 81 6.3.2 Cumulative Doses ......................................... 82 6.3.3 Comparison To Limits ..................................... 82 6.4 LIQUID RADWASTE TREATMENT SYSTEM ......................... 83 6.5 DOSE PROJECTIONS ......................................... 84 6.6 DOSE CALCULATIONS FOR REPORTING PURPOSES ................. 85 6.6.1 Water Ingestion .......................................... 85 6.6.2 Fish Ingestion ........................................... 86 6.6.3 Shoreline Recreation ..................................... 86 6.6.4 Total Maximum Individual Dose ............................ 87 6.6.5 Population Doses ......................................... 88

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Section Page 6.7 LIQUID DOSE FACTOR EQUATIONS ............................. 91 6.7.1 Water Ingestion Dose Factors ............................. 91 6.7.2 Fish Ingestion Dose Factors .............................. 91 6.7.3 Shoreline Recreation Dose Factors ........................ 91 7.0 GASEOUS EFFLUENTS ........................................ 115 RELEASE POINTS DESCRIPTION .......................................... 116 7.1 GASEOUS EFFLUENT MONITOR INSTRUMENT SETPOINTS ............ 117 7.1.1 Maximum Allowable Value .................................. 117 7.1.2 Default Allowable Values ................................. 118 7.2 Release Rate Limit Methodology ........................... 120 7.3 GASEOUS EFFLUENTS - DOSE RATES ........................... 121 7.3.1 RELEASE SAMPLING ......................................... 121 7.3.2 NOBLE GAS DOSE RATES ..................................... 121 7.3.2.1 Total Body Dose Rate ..................................... 121 7.3.2.2 Skin Dose Rate ........................................... 122 7.3.3 I-131, I-133, TRITIUM AND ALL RADIONUCLIDES IN PARTICULATE FORM WITH HALF-LIVES OF GREATER THAN 8 DAYS -

ORGAN DOSE RATE .......................................... 123

0-ODCM-001 Revision 0024 Page 7 of 227 Browns Ferry Nuclear Plant Offsite Dose Calculation Manual TABLE OF CONTENTS (Page 6 of 11)

Section Page 7.4 CUMULATIVE DOSE - NOBLE GASES ............................ 124 7.4.1 Gamma Dose to Air ........................................ 124 7.4.2 Beta Dose to Air ......................................... 125 7.4.3 Cumulative Dose - Noble Gas .............................. 125 7.4.4 Comparison to Limits ..................................... 125 7.5 CUMULATIVE DOSE - ORGAN DOSE DUE TO I-131, I-133, TRITIUM AND PARTICULATES WITH HALF LIVES GREATER THAN 8 DAYS ..... 126 7.5.1 Organ Dose Calculation .................................. 126 7.5.2 Cumulative Doses ........................................ 127 7.5.3 Comparison to Limits .................................... 127 7.6 GASEOUS RADWASTE TREATMENT .............................. 128 7.6.1 DOSE PROJECTIONS ........................................ 128 7.6.2 SYSTEM DESCRIPTION ...................................... 128

0-ODCM-001 Revision 0024 Page 8 of 227 Browns Ferry Nuclear Plant Offsite Dose Calculation Manual TABLE OF CONTENTS (Page 7 of 11)

Section Page 7.7 DOSE CALCULATIONS FOR REPORTING PURPOSES ................. 129 7.7.1 Noble Gas Dose ........................................... 129 7.7.1.1 Gamma Dose to Air ....................................... 130 7.7.1.2 Beta Dose to Air ......................................... 130 7.7.2 Radioiodine, Particulate, Carbon 14, and Tritium - Maximum Organ Dose ............................................... 131 7.7.3 Population Doses ......................................... 133 7.7.4 Reporting of Doses ....................................... 135 7.7.5 Dose to a MEMBER OF THE PUBLIC Inside the SITE BOUNDARY... 135 7.8 GASEOUS DOSE FACTOR EQUATIONS ............................ 136 7.8.1 Pasture Grass-Cow/Goat-Milk Ingestion Dose Factors ....... 136 7.8.2 Stored Feed-Cow/Goat-Milk Ingestion Dose Factors ......... 137 7.8.3 Pasture Grass-Beef Ingestion Dose Factors ................ 138 7.8.4 Stored Feed-Beef Ingestion Dose Factors .................. 139 7.8.5 Fresh Leafy Vegetable Ingestion Dose Factors ............. 140 7.8.6 Stored Vegetable Ingestion Dose Factors .................. 141 7.8.7 Tritium-Pasture Grass-Cow/Goat-Milk Dose Factor .......... 142 7.8.8 Tritium-Stored Feed-Cow/Goat-Milk Dose Factor ............ 143 7.8.9 Tritium-Pasture Grass-Beef Dose Factor ................... 144 7.8.10 Tritium-Stored Feed-Beef Dose Factor ..................... 145 7.8.11 Tritium-Fresh Leafy Vegetable Dose Factor ................ 146 7.8.12 Tritium-Stored Vegetables Dose Factor .................... 147

0-ODCM-001 Revision 0024 Page 9 of 227 Browns Ferry Nuclear Plant Offsite Dose Calculation Manual TABLE OF CONTENTS (Page 8 of 11)

Section Page 7.8.13 Carbon 14-Pasture Grass-Cow/Goat-Milk Dose Factor ......... 148 7.8.14 Carbon 14-Stored Feed-Cow/Goat-Milk Dose Factor ........... 149 7.8.15 Carbon 14-Pasture Grass-Beef Dose Factor .................. 150 7.8.16 Carbon 14-Stored Feed-Beef Dose Factor .................... 151 7.8.17 Carbon 14-Fresh Leafy Vegetable Dose Factor ............... 152 7.8.18 Carbon 14-Stored Vegetables Dose Factor ................... 153 7.8.19 Inhalation Dose Factors .................................. 154 7.8.20 Ground Plane Dose Factors ................................ 154 7.9 DISPERSION METHODOLOGY ................................... 155 7.9.1 Annual Average Air Concentration ......................... 156 7.9.2 Relative Concentration ................................... 157 7.9.3 Relative Deposition ...................................... 157 7.9.4 Effective Release Height ............................... 158 8.0 TOTAL DOSE .............................................. 214 9.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ........... 216 9.1 MONITORING PROGRAM DESCRIPTION .......................... 217 9.2 DETECTION CAPABILITIES .................................. 217 9.3 LAND USE CENSUS .......................................... 217 9.4 INTERLABORATORY COMPARISON PROGRAM ....................... 217

0-ODCM-001 Revision 0024 Page 10 of 227 Browns Ferry Nuclear Plant Offsite Dose Calculation Manual TABLE OF CONTENTS (Page 9 of 11)

LIST OF TABLES Page Table 1.1-1 RADIOACTIVE LIQUID EFFLUENT MONITORING INSTRUMENTATION . 19 Table 2.1-1 RADIOACTIVE LIQUID EFFLUENT MONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS .............................. 21 Table 1.1-2 RADIOACTIVE GASEOUS EFFLUENT MONITORING INSTRUMENTATION 24 Table 2.1-2 RADIOACTIVE GASEOUS EFFLUENT MONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS .............................. 26 Table 2.2-1 RADIOACTIVE LIQUID WASTE SAMPLING AND ANALYSIS PROGRAM . 29 Table 2.2-2 RADIOACTIVE GASEOUS WASTE MONITORING SAMPLING AND ANALYSIS PROGRAM ....................................... 35 Table 2.3-1 MINIMUM REQUIRED RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ................................................ 44 Table 2.3-2 MAXIMUM VALUES FOR THE LOWER LIMIT OF DETECTION (LLD)

FOR ENVIRONMENTAL SAMPLES .............................. 47 Table 2.3-2 DETECTION CAPABILITIES FOR GROUNDWATER HARD-TO-DETECT (a) NUCLIDES LOWER LIMITS OF DETECTION (LLD)................. 47 Table 2.3-3 REPORTING LEVELS FOR RADIOACTIVITY CONCENTRATIONS IN ENVIRONMENTAL SAMPLES .................................. 49 Table 3.1 FREQUENCY NOTATION ..................................... 66 Table 3.2 MODES .................................................. 67 Table 6.1 RECEPTORS FOR LIQUID DOSE CALCULATIONS ................. 92 Table 6.2 RADIONUCLIDE DECAY AND STABLE ELEMENT TRANSFER DATA .... 93 Table 6.3 DOSE CALCULATION FACTORS ............................... 96 Table 6.4 INGESTION DOSE FACTORS ................................. 98 Table 6.5 BIOACCUMULATION FACTORS FOR FRESHWATER FISH ............ 110 Table 6.6 EXTERNAL DOSE FACTORS FOR STANDING ON CONTAMINATED GROUND 111 Table 7.1 BFN - OFFSITE RECEPTOR LOCATION DATA ................... 159 Table 7.2 EXPECTED ANNUAL ROUTINE ATMOSPHERIC RELEASES FROM ONE UNIT AT BFN ............................................. 160

0-ODCM-001 Revision 0024 Page 11 of 227 Browns Ferry Nuclear Plant Offsite Dose Calculation Manual TABLE OF CONTENTS (Page 10 of 11)

LIST OF TABLES Page Table 7.3 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION ............................................. 161 Table 7.4 NOBLE GAS DOSE FACTORS ................................ 189 Table 7.5 SECTOR ELEMENTS CONSIDERED FOR POPULATION DOSES ........ 190 Table 7.6 BFN 50-MILE POPULATION WITHIN EACH SECTOR ELEMENT ...... 191 Table 7.7 INHALATION DOSE FACTORS ................................ 192 Table 9.1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM .......... 218 Table 9.2 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM SAMPLING LOCATIONS .............................................. 223 Table 9.3 ENVIRONMENTAL DOSIMETER LOCATIONS ...................... 224

0-ODCM-001 Revision 0024 Page 12 of 227 Browns Ferry Nuclear Plant Offsite Dose Calculation Manual TABLE OF CONTENTS (Page 11 of 11)

LIST OF FIGURES Page Figure 3.1 LAND SITE BOUNDARY ....................................... 68 Figure 6.1 LIQUID RELEASE POINTS .................................... 113 Figure 6.2 LIQUID RADWASTE SYSTEM ................................... 114 Figure 7.1 OFFGAS SYSTEM AND STANDBY GAS TREATMENT SYSTEM EFFLUENT MONITORING ............................................... 203 Figure 7.2 NORMAL BUILDING VENTILATION .............................. 204 Figure 7.3 PLUME DEPLETION EFFECT ................................... 205 Figure 7.4 VERTICAL STANDARD DEVIATION OF MATERIAL IN A PLUME ....... 209 Figure 7.5 RELATIVE DEPOSITION ...................................... 210 Figure 9.1 RADIOLOGICAL ENVIRONMENTAL SAMPLING LOCATIONS WITHIN 1 MILE OF THE PLANT ...................................... 225 Figure 9.2 RADIOLOGICAL ENVIRONMENTAL SAMPLING LOCATIONS FROM 1 TO 5 MILES FROM THE PLANT ................................... 226 Figure 9.3 RADIOLOGICAL ENVIRONMENTAL SAMPLING LOCATIONS GREATER THAN 5 MILES FROM THE PLANT .............................. 227

0-ODCM-001 Revision 0024 Page 13 of 227 INTRODUCTION The Browns Ferry Nuclear Plant (BFN) Offsite Dose Calculation Manual (ODCM) is a supporting document of the BFN Technical Specifications. The ODCM is divided into two major parts. The first part of the ODCM contains: 1) Radioactive Effluent Controls specified by the BFN Technical Specification 5.5.4; 2) Radiological Environmental Monitoring Controls;

3) descriptions of the information that should be included in the Annual Radiological Environmental Operating and Annual Radioactive Effluent Release Reports required by BFN Technical Specifications 5.6.2 and 5.6.3; and, 4) Administrative Controls for the ODCM requirements. The second part of the ODCM contains the methodologies used to: 1) calculate offsite doses resulting from radioactive gaseous and liquid effluents; 2) calculate gaseous and liquid effluent monitor Alarm/Trip setpoints; and,
3) conduct the Radiological Environmental Monitoring Program (REMP).

The BFN ODCM is maintained for use as a reference guide on accepted methodologies and calculations. Changes in the calculation methods or parameters will be incorporated into the ODCM in order to assure that the ODCM represents the present methodology in all applicable areas. Any licensee initiated ODCM changes will be implemented in accordance with BFN Technical Specifications.

0-ODCM-001 Revision 0024 Page 14 of 227 INTRODUCTION (Continued)

Radioactive waste release levels to UNRESTRICTED AREAS shall be kept "as low as reasonably achievable" and are not to exceed the annual average concentration limits specified in 10 CFR Part 20, Appendix B, Table 2.

At the same time, the requirements specified in this manual permit the flexibility of operation, compatible with considerations of health and safety, to assure that the public is provided a dependable source of power under unusual operating conditions which may temporarily result in releases higher than design objectives but still within the annual average concentration limits specified in 10 CFR Part 20. It is expected that by using this operational flexibility and exerting every effort to keep levels of radioactive releases "as low as reasonably achievable" in accordance with criteria established in 10 CFR Part 50, Appendix I, the annual releases will result in a small fraction of the annual average concentration limits specified in 10 CFR Part 20, Appendix B, Table 2.

The surveillance/testing requirements given in this manual provide assurance that liquid and gaseous wastes are properly controlled and monitored during any release of radioactive materials in the liquid and gaseous effluents. These requirements provide the data for the licensee and the Commission to evaluate the station's performance relative to radioactive materials released to the environment. Reports on the quantities of radioactive materials released in effluents shall be furnished to the Commission on the basis of Section 5.0 of this manual.

On the basis of such reports and any additional information the Commission may obtain from the licensee or others, the Commission may require the licensee to take such actions as the Commission deems appropriate.

0-ODCM-001 Revision 0024 Page 15 of 227 SECTION 1.0 AND 2.0 CONTROLS AND SURVEILLANCE REQUIREMENTS

0-ODCM-001 Revision 0024 Page 16 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.0 APPLICABILITY CONTROLS 1.0.1 Compliance with the Controls contained in the succeeding sections is required during the MODES specified therein; except that upon failure to meet the Control, the associated ACTION requirements shall be met.

1.0.2 Noncompliance with a Control shall exist when the requirements of the Control and associated ACTION requirements are not met within the specified time intervals. If the Control is restored prior to the expiration of the specified intervals, completion of the ACTION requirements is not required.

0-ODCM-001 Revision 0024 Page 17 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.0 APPLICABILITY SURVEILLANCE REQUIREMENTS 2.0.1 Surveillance Requirements shall be met during the MODES specified for individual Controls unless otherwise stated in the individual Surveillance Requirement.

2.0.2 Each Surveillance Requirement shall be performed within the specified time interval with a maximum allowable extension not to exceed 25% of the surveillance interval.

2.0.3 Performance of a Surveillance Requirement within the specified time interval shall constitute compliance and OPERABILITY requirements for a Control and associated action statements unless otherwise required by these Controls. Surveillance Requirements do not have to be performed on inoperable equipment.

0-ODCM-001 Revision 0024 Page 18 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.1 INSTRUMENTATION 1/2.1.1 RADIOACTIVE LIQUID EFFLUENT MONITORING INSTRUMENTATION CONTROLS 1.1.1 In accordance with BFN Technical Specification 5.5.4.a, the radioactive liquid effluent monitoring instrumentation listed in Table 1.1-1 shall be OPERABLE with the applicability as shown in Tables 1.1-1 and 2.1-1. Alarm/trip setpoints will be set in accordance with guidance given in ODCM Section 6.2 to ensure that the limits of Control 1.2.1.1 are not exceeded.

APPLICABILITY: This requirement is applicable as shown in Table 1.1-1.

ACTION:

a. With a radioactive liquid effluent monitoring channel alarm/trip setpoint less conservative than required by these requirements, suspend the release without delay, declare the channel inoperable, or adjust the alarm/trip setpoint to establish the conservatism required by these requirements.
b. The action required when the number of OPERABLE channels is less than the minimum channels OPERABLE requirement is specified in the notes for Table 1.1-1. Exert best efforts to return the instrument(s) to OPERABLE status within 30 days and, if unsuccessful, explain in the next Annual Radioactive Effluent Release Report why the in-operability was not corrected in a timely manner.
c. Report all deviations in the Annual Radioactive Release Report.

SURVEILLANCE REQUIREMENTS 2.1.1 Each of the radioactive liquid effluent monitoring instruments shall be demonstrated OPERABLE by performance of tests in accordance with Table 2.1-1.

0-ODCM-001 Revision 0024 Page 19 of 227 Table 1.1-1 (Page 1 of 2)

RADIOACTIVE LIQUID EFFLUENT MONITORING INSTRUMENTATION Minimum Channels Instrument* OPERABLE Applicability ACTION

1. Liquid Radwaste Effluent Monitor (RM-90-130) 1 ** A/B
2. RHR Service Water Monitor (RM-90-133D, -134D) 1 *** C
3. Raw Cooling Water Monitor (RM-90-132D) 1 ** D
4. Liquid Radwaste Effluent Flow Rate (77-60 loop) 1 **** E
  • Alarm/trip setpoints will be calculated in accordance with the guidance given in Section 6.2.
    • During Releases via this pathway.
        • During releases via this pathway when the allowable release rate is less than maximum design flow.

0-ODCM-001 Revision 0024 Page 20 of 227 Table 1.1-1 (Page 2 of 2)

RADIOACTIVE LIQUID EFFLUENT MONITORING INSTRUMENTATION TABLE NOTATION ACTION A During release of radioactive wastes from the radwaste processing system, the following shall be met:

(1) liquid waste activity and flowrate shall be continuously monitored during release and shall be set to alarm and automatically close the waste discharge valve before exceeding the limits specified in Control 1.2.1.1, (2) if this cannot be met, two independent samples of the tank being discharged shall be analyzed in accordance with the sampling and analysis program specified in Table 2.2-1 and two qualified station personnel shall independently verify the release rate calculations and check valving before the discharge. Otherwise, suspend releases via this pathway.

ACTION B With a radioactive liquid effluent monitoring channel alarm/trip setpoint less conservative than required by these requirements, suspend release via this pathway without delay, declare the channel inoperable, or adjust the alarm/trip setpoint to establish the conservatism required by these requirements.

ACTION C During operation of an RHR loop and associated RHR service water system, the effluent from that unit's service water shall be continuously monitored. If an installed monitoring system is not available, a temporary monitor or grab samples taken every 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and analyzed for principal gamma emitters with an LLD1 within the requirements listed in Table 2.2-1.

ACTION D With the number of channels OPERABLE less than required by the Minimum Channels OPERABLE requirement, effluent releases via this pathway may continue provided that a temporary monitor is installed or, at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, grab samples are collected and analyzed for principal gamma emitters with an LLD1 within the requirements listed in Table 2.2-1.

ACTION E With the number of channels OPERABLE less than required by the Minimum Channels OPERABLE requirement, effluent releases via this pathway may be continued provided the flow rate is estimated at least once per 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> during actual releases. Pump curves may be used to estimate flow.

1 See Table 2.2-1, Table Notation for the definition of LLD.

0-ODCM-001 Revision 0024 Page 21 of 227 Table 2.1-1 (Page 1 of 2)

RADIOACTIVE LIQUID EFFLUENT MONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS CHANNEL INSTRUMENT SOURCE CHANNEL FUNCTIONAL Instrument CHECK CHECK CALIBRATION TEST

a. Liquid Radwaste Effluent D4 M 18M5 Q1 Monitor (RM-90-130)
b. RHR Service Water D4 M 18M5 Q2 Monitor (RM-90-133D,-134D)
c. Raw Cooling Water D4 M 18M5 Q2 Monitor (RM-90-132D)
d. Liquid Radwaste Effluent D4 N/A 18M Q3 Flow Rate (77-60 loop)

0-ODCM-001 Revision 0024 Page 22 of 227 Table 2.1-1 (Page 2 of 2)

RADIOACTIVE LIQUID EFFLUENT MONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS TABLE NOTATION NOTE: Each requirement shall be performed within the specified time interval with a maximum allowable extension not to exceed 25% of the interval given.

1 The CHANNEL FUNCTIONAL TEST shall demonstrate that automatic isolation of this pathway and control room alarm annunciation occurs if any of the following conditions exists:

a. Instrument indicates measured levels above the alarm/trip setpoint.
b. Instrument indicates an inoperative/downscale failure.
c. Instrument controls not set in operate mode.

2 The CHANNEL FUNCTIONAL TEST shall also demonstrate that control room alarm annunciation occurs if any of the following conditions exists:

a. Instrument indicates measured levels above the alarm/trip setpoint.
b. Instrument indicates an inoperative/downscale failure.
c. Instrument controls not set in operate mode.

3 This functional test shall consist of measuring rate of tank decrease over a period of time and comparing this value with flow rate instrument reading.

4 INSTRUMENT CHECK shall consist of verifying indication during periods of release. INSTRUMENT CHECK shall be made at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> on days which continuous, periodic, or batch releases are made.

5 The CHANNEL CALIBRATION shall include the use of a known (traceable to the National Institute of Standards and Technology (NIST))

radioactive source(s) positioned in a reproducible geometry with respect to the sensor or using standards that have been obtained from suppliers that participate in measurement assurance activities with the NIST.

0-ODCM-001 Revision 0024 Page 23 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.1 INSTRUMENTATION 1/2.1.2 RADIOACTIVE GASEOUS EFFLUENT MONITORING INSTRUMENTATION CONTROLS 1.1.2 In accordance with BFN Technical Specification 5.5.4.a, the radioactive gaseous effluent monitoring instruments listed in Table 1.1-2 shall be OPERABLE with the applicability as shown in Table 1.1-2. Alarm/trip setpoints will be set in accordance with guidance given in ODCM Section 7.2 to ensure that the limits of ODCM Control 1.2.2.1 are not exceeded.

APPLICABILITY: As shown in Table 1.1-2.

ACTION:

a. With a radioactive gaseous effluent monitoring channel alarm/trip setpoint less conservative than required by these requirements, suspend the release without delay, declare the channel inoperable or adjust the alarm/trip setpoint to establish the conservatism required by these requirements.
b. Both off-gas treatment monitors may be taken out of service for less than one hour for purging of monitors during SI performance.
c. The action required when the number of operable channels is less than the minimum channels operable requirement is specified in the notes for Table 1.1-2. Exert best efforts to return the instrument(s) to operable status within 30 days and, if unsuccessful, explain in the next Annual Radioactive Effluent Release Report why the inoperability was not corrected in a timely manner.
d. Report all deviations in the Annual Radioactive Release Report.

SURVEILLANCE REQUIREMENTS 2.1.2 Each of the radioactive gaseous effluent monitoring instruments shall be demonstrated OPERABLE by performance of tests in accordance with Table 2.1-2.

0-ODCM-001 Revision 0024 Page 24 of 227 Table 1.1-2 (Page 1 of 2)

RADIOACTIVE GASEOUS EFFLUENT MONITORING INSTRUMENTATION Minimum Channels/

Instrument Devices OPERABLE Applicability ACTION

1. STACK (RM-90-147B & -148B)
a. Noble Gas Monitor 1
  • A/C
b. Iodine Cartridge 1
  • B/C
c. Particulate Filter 1
  • B/C
d. Sampler Flow Abnormal 1
  • C/D
e. Stack Flow (FT, FM, FI-90-271) 1
  • G
2. REACTOR/TURBINE/REFUEL BUILDING VENTILATION ZONE (RM-90-250)
a. Noble Gas Monitor 1
  • A/C
b. Iodine Sampler 1
  • B/C
c. Particulate Sampler 1
  • B/C
d. Sampler Flowmeter 1
  • C/D
3. TURBINE BUILDING EXHAUST (RM-90-249, -251)
a. Noble Gas Monitor 1 ** A/C
b. Iodine Sampler 1 ** B/C
c. Particulate Sampler 1 ** B/C
d. Sampler Flowmeter 1 ** C/D
4. RADWASTE BUILDING VENT (RM-90-252)
a. Noble Gas Monitor 1
  • A/C
b. Iodine Sampler 1
  • B/C
c. Particulate Sampler 1
  • B/C
d. Sampler Flowmeter 1
  • C/D
5. OFFGAS POST TREATMENT
a. Noble Gas Activity Monitor 1 ** F (RM-90-265, -266)
b. Sample Flow Abnormal 1 ** C/D (PA-90-262)
  • At all times.
    • During releases via this pathway.

0-ODCM-001 Revision 0024 Page 25 of 227 Table 1.1-2 (Page 2 of 2)

RADIOACTIVE GASEOUS EFFLUENT MONITORING INSTRUMENTATION TABLE NOTATION ACTION A With the number of channels OPERABLE less than required by the Minimum Channels OPERABLE requirement, effluent releases via the affected pathway may continue provided a temporary monitoring system is installed or grab samples are taken and analyzed at least once every 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.

ACTION B With a number of channels OPERABLE less than required by the Minimum Channels OPERABLE requirement, effluent releases via this pathway may continue provided samples are continuously collected with auxiliary sampling equipment for periods on the order of seven (7) days and analyzed in accordance with the sampling and analysis program specified in Table 2.2-2 within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> after the end of the sampling period.

ACTION C A monitoring system (this includes the flow instrumentation) may be out of service for 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> for functional testing, calibration, or repair without providing, initiating grab sampling, or providing compensatory measures for flow instrumentation.

ACTION D With the number of channels OPERABLE less than required by the Minimum Channels Operable requirement, effluent releases via this pathway may continue provided the flow rate is estimated at least once per 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.

ACTION F With the number of channels OPERABLE less than required by the Minimum Channels Operable requirement, effluent releases via this pathway may continue provided grab samples are taken at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> and these samples are analyzed for gross activity within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. Purging during SI performance is not considered a loss of monitoring capability.

ACTION G With the number of channels OPERABLE less than required by the Minimum Channels Operable requirement, effluent releases via this pathway may continue provided the flow rate is recorded from 0-FI-90-348 (WRGERMS, Stack Flow Indicator)[BFPER960961]. If both 0-FI-90-271 and 0-FI-90-348 are inoperable, ACTION D applies.

0-ODCM-001 Revision 0024 Page 26 of 227 Table 2.1-2 (Page 1 of 2)

RADIOACTIVE GASEOUS EFFLUENT MONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS CHANNEL INSTRUMENT SOURCE CHANNEL FUNCTIONAL Instrument CHECK CHECK CALIBRATION TEST

1. STACK
a. Noble Gas Monitor4 D M 18M1 Q2
b. Iodine Cartridge W N/A N/A N/A
c. Particulate Filter W N/A N/A N/A
d. Sampler Flow Abnormal D N/A 18M Q
e. Stack Flowmeter D N/A 18M Q
2. REACTOR/TURBINE/REFUEL BUILDING VENTILATION ZONE
a. Noble Gas Monitor5 D M 18M1 Q2
b. Iodine Sampler W N/A N/A N/A
c. Particulate Sampler W N/A N/A N/A
b. Sampler Flowmeter D N/A 18M Q
3. TURBINE BUILDING EXHAUST
a. Noble Gas Monitor5 D M 18M1 Q2
b. Iodine Sampler W N/A N/A N/A
c. Particulate Sampler W N/A N/A N/A
b. Sampler Flowmeter D N/A 18M Q
4. RADWASTE BUILDING VENT
a. Noble Gas Monitor5 D M 18M1 Q2
b. Iodine Sampler W N/A N/A N/A
c. Particulate Sampler W N/A N/A N/A
b. Sampler Flowmeter D N/A 18M Q
5. OFF GAS POST TREATMENT
a. Noble Gas Activity D M 18M1 Q3 Monitor4
b. Sample Flow Abnormal D N/A 18M Q2

0-ODCM-001 Revision 0024 Page 27 of 227 Table 2.1-2 (Page 2 of 2)

RADIOACTIVE GASEOUS EFFLUENT MONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS NOTE: Each requirement shall be performed within the specified time interval with a maximum allowable extension not to exceed 25% of the interval given.

1 The CHANNEL CALIBRATION shall include the use of a known (traceable to the National Institute of Standards and Technology (NIST)) radioactive source(s) positioned in a reproducible geometry with respect to the sensor or using standards that have been obtained from suppliers that participate in measurement assurance activities with the NIST.

2 The CHANNEL FUNCTIONAL TEST shall also demonstrate that control room alarm annunciation occurs if any of the following conditions exists:

1.Instrument indicates measured levels above the alarm/trip setpoint.

2.Instrument indicates an inoperative/downscale failure.

3.Instrument controls not set in operate mode (stack only).

3 The CHANNEL FUNCTIONAL TEST shall demonstrate that automatic isolation of this pathway and control room alarm annunciation occurs if any of the following conditions exists:

1.Instrument indicates measured levels above the alarm/trip setpoint.

2.Instrument indicates an inoperative/downscale failure.

3.Instrument controls not set in operate mode (stack only).

The two channels are arranged in a coincidence logic such that 2 upscale, or 1 downscale and 1 upscale or 2 downscale will isolate the offgas line.

4 The noble gas monitor shall have a LLD of 1E-5 µCi/cc (Xe-133 Equivalent).

5 The noble gas monitor shall have a LLD of 1E-6 µCi/cc (Xe-133 Equivalent).

0-ODCM-001 Revision 0024 Page 28 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.2 RADIOACTIVE EFFLUENTS 1/2.2.1 LIQUID EFFLUENTS 1/2.2.1.1 CONCENTRATION CONTROLS 1.2.1.1 In accordance with BFN Technical Specifications 5.5.4.b and c, the concentration of radioactive material released at any time from the site to UNRESTRICTED AREAS (see Figure 3.1) shall be limited to ten times the concentrations specified in 10 CFR Part 20, Appendix B, Table 2, Column 2 for radionuclides other than dissolved or entrained noble gases. For dissolved or entrained noble gases, the concentration shall be limited to 2E-4 µCi/ml total activity.

APPLICABILITY: At all times.

ACTION:

a. If the above limits are exceeded, appropriate action shall be initiated without delay to bring the release within limits. Report all deviations in the Annual Radioactive Effluent Release Report.

SURVEILLANCE REQUIREMENTS 2.2.1.1.1 Facility records shall be maintained of radioactive concentrations and volume before dilution of each batch of liquid effluent released, and of the average dilution flow and the length of time over which each discharge occurred.

2.2.1.1.2 Radioactive liquid waste sampling and activity analysis of each liquid waste batch to be discharged shall be performed prior to release in accordance with the sampling and analysis program specified in Table 2.2-1.

2.2.1.1.3 The operation of the automatic isolation valves and discharge tank selection valves shall be checked once per 24 months.

2.2.1.1.4 The results of the analysis of samples collected from release points shall be used with the calculational methodology in ODCM Section 6.1 to assure that the concentrations at the point of discharge are maintained within the above limits.

0-ODCM-001 Revision 0024 Page 29 of 227 Table 2.2-1 (Page 1 of 3)

RADIOACTIVE LIQUID WASTE SAMPLING AND ANALYSIS PROGRAM

System Design

Capability Liquid Minimum Type of Lower Limit of Release Sampling Analysis Activity Detection (LLD)3 Type Frequency Frequency Analysis (µCi/ml)

Batch Waste Each Each Batch Principal 5x10-7 Releases1 Batch Prior to Gamma Release Emitters4 One Batch Monthly Dissolved and 1x10-5 per Month Entrained Gases5 Monthly Monthly Tritium 1x10-5 Proportional Composite2 Gross Alpha 1x10-7 Quarterly Quarterly Sr-89, Sr-90 5x10-8 Proportional Composite2 Fe-55 1x10-6

0-ODCM-001 Revision 0024 Page 30 of 227 Table 2.2-1 (Page 2 of 3)

RADIOACTIVE LIQUID WASTE SAMPLING AND ANALYSIS PROGRAM TABLE NOTATION 1 A batch release is the discharge of liquid waste of a discrete volume. The discharge shall be thoroughly mixed prior to sampling.

2 A proportional composite sample is one in which the quantity of liquid sampled is proportional to the quantity of liquid waste discharged from the plant and is representative of the liquid discharged.

3 The LLD is defined for the purpose of these requirements as the smallest concentration of radioactive material in a sample that will yield a net count above system background that will be detected with 95% probability with only a 5% probability of falsely concluding that a blank observation represents a "real" signal.

For a particular measurement system (which may include radiochemical separation):

4.66sb LLD =

E V 2.22E+06 Y exp (-t)

Where:

LLD = the "a priori" lower limit of detection as defined above

(µCi/g or µCi/ml),

sb = the standard deviation of the background counting rate or of the counting rate of a blank sample as appropriate (cpm),

E = the counting efficiency (c/decay),

V = the sample size (g or ml),

2.22E+06 = the number of dpm/µCi Y = the fractional radiochemical yield, when applicable,

= the radioactive decay constant for the particular radionuclide (s-1), and t = the elapsed time between midpoint of sample collection and time of counting (s).

Typical values of E, V, Y, and t should be used in the calculation.

It should be recognized that the LLD is defined as an a priori (before the fact) limit representing the capability of a measurement system and not an a posteriori (after the fact) limit for a particular measurement.

0-ODCM-001 Revision 0024 Page 31 of 227 Table 2.2-1 (Page 3 of 3)

RADIOACTIVE LIQUID WASTE SAMPLING AND ANALYSIS PROGRAM TABLE NOTATION 4 The principal gamma emitters for which the LLD specification will apply are exclusively the following radionuclides: Zn-65, Co-60, Cs-137, Mn-54, Co-58, Cs-134, Ce-141, Ce-144, Mo-99 and Fe-59 for liquid releases.

This list does not mean that only these nuclides are to be detected and reported. Other peaks which are measurable and identifiable, together with the above nuclides, shall also be identified and reported as being present.

Nuclides which are below the LLD for the analysis should not be reported as being present at the LLD level for that nuclide. I-131 shall have a LLD of 1E-6 µCi/ml.

5 Gamma Emitters Only.

0-ODCM-001 Revision 0024 Page 32 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.2 RADIOACTIVE EFFLUENTS 1/2.2.1 LIQUID EFFLUENTS 1/2.2.1.2 DOSE CONTROLS 1.2.1.2 In accordance with BFN Technical Specifications 5.5.4.d and e, the doses or dose commitment to a MEMBER OF THE PUBLIC from radioactive materials in liquid effluents released from each unit to UNRESTRICTED AREAS shall be limited:

a. During any calendar quarter to < 1.5 mrem to the total body and to < 5 mrem to any organ, and
b. During any calendar year to < 3 mrem to the total body and to

< 10 mrem to any organ.

APPLICABILITY: At all times.

ACTION:

a. With the calculated dose from the release of radioactive materials in liquid effluents exceeding any of the above limits, prepare and submit to the Commission within 30 days, pursuant to ODCM Administrative Control 5.4, a Special Report that identifies the cause(s) for exceeding the limit(s) and defines the corrective actions that have been taken to reduce the releases and the proposed corrective actions to be taken to assure that subsequent releases will be in compliance with the above limits. This Special Report shall also include: (1) the results of radiological analyses of the drinking water source, and (2) the radiological impact on finished drinking water supplies with regard to the requirements of 40 CFR Part 141, National Primary Drinking Water Regulations.*

SURVEILLANCE REQUIREMENTS 2.2.1.2 Cumulative quarterly and yearly dose contributions from liquid effluents shall be determined as specified in ODCM Section 6.3 at least once every 31 days.

  • The requirements of (1) and (2) above are applicable only if drinking water supply is taken from the receiving water body within 3 miles of the plant discharge. In the case of river-sited plants this is 3 miles downstream only.

0-ODCM-001 Revision 0024 Page 33 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.2 RADIOACTIVE EFFLUENTS 1/2.2.1 LIQUID EFFLUENTS 1/2.2.1.3 LIQUID RADWASTE TREATMENT SYSTEM CONTROLS 1.2.1.3 In accordance with BFN Technical Specification 5.5.4.f, the Liquid Radwaste Treatment System shall be used to reduce the radioactive materials in liquid discharge from the site when the projected monthly dose would exceed 0.06 mrem to the total body or 0.20 mrem to any other organ per unit.

APPLICABILITY: At all times.

ACTION:

a. With radioactive liquid waste being discharged for more than 31 days without treatment and when the projected dose is in excess of the above limits and any portion of the Liquid Radwaste Treatment System not in operation, prepare and submit to the Commission within 30 days, pursuant to ODCM Adminstrative Control 5.4, a Special Report that includes the following information:
1. Explanation of why liquid radwaste was being discharged without treatment, identification of any inoperable equipment or subsystems, and the reason for the inoperability,
2. Action(s) taken to restore the inoperable equipment to OPERABLE status, and
3. Summary description of action(s) taken to prevent a recurrence.

SURVEILLANCE REQUIREMENTS 2.2.1.3 Doses due to liquid releases to UNRESTRICTED AREAS shall be projected at least once per 31 days, in accordance with ODCM Section 6.5.

0-ODCM-001 Revision 0024 Page 34 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.2 RADIOACTIVE EFFLUENTS 1/2.2.2 GASEOUS EFFLUENTS 1/2.2.2.1 DOSE RATE CONTROLS 1.2.2.1 In accordance with BFN Technical Specification 5.5.4.g, the dose rate at any time to areas at and beyond the SITE BOUNDARY (see Figure 3.1) due to radioactivity released in gaseous effluents from the site shall be limited to the following values:

a. The dose rate limit for noble gases shall be < 500 mrem/yr to the total body and < 3000 mrem/yr to the skin, and
b. The dose rate limit for I-131, I-133, H-3 and particulates with greater than eight day half-lives shall be < 1500 mrem/yr to any organ.

APPLICABILITY: At all times.

ACTION: a. If the limits above are exceeded, appropriate corrective action shall be immediately initiated to bring the release within limits. Report all deviations in the Annual Radioactive Effluent Release Report.

SURVEILLANCE REQUIREMENTS 2.2.2.1.1 The gross / and particulate activity of gaseous wastes released to the environment shall be monitored and recorded.

a. For effluent streams having continuous monitoring capability, the activity shall be monitored and flow rate evaluated and recorded to enable release rates of gross radioactivity to be determined at least once per shift using instruments specified in Table 1.1-2.
b. For effluent streams without continuous monitoring capability, the activity shall be monitored and recorded and the release through these streams controlled to within the limits specified above.

2.2.2.1.2 Radioactive gaseous waste sampling and activity analysis shall be performed in accordance with the sampling and analysis program specified in Table 2.2-2. Dose rates shall be determined to be within the above limits using methods contained in ODCM Section 7.3.

2.2.2.1.3 Samples of offgas system effluents shall be analyzed at least weekly to determine the identity and quantity of the principal radionuclides being released.

0-ODCM-001 Revision 0024 Page 35 of 227 Table 2.2-2 (Page 1 of 3)

RADIOACTIVE GASEOUS WASTE MONITORING SAMPLING AND ANALYSIS PROGRAM

System Design

Capability Gaseous Minimum Type of Lower Limit of Release Sampling Analysis Activity Detection (LLD)1 Type Frequency Frequency Analysis (µCi/ml)

A.Containment Prior to Prior to Principal 1x10-4 Purge Each PURGE Each PURGE Gamma Grab Emitters3 Sample5 Monthly6 H-3 1x10-6 B.1. Stack Monthly Monthly4 Principal 1x10-4 Grab Sample Gamma Emitters3

2. Building Monthly Monthly4 H-3 1x10-6 Ventilation Grab Sample
a. Reactor/

Turbine

b. Turbine Exhaust
c. Radwaste C. All Release Continuous Charcoal I-131 1x10-12 2 Points Sampler Sample Listed in Weekly4 B. Above Continuous Particulate Principal 1x10-11 2 Sampler Sample Gamma Weekly4 Emitters3 I-131 1x10-12 2 Continuous Composite Gross Alpha 1x10-11 Sampler Particulate Sample Monthly Continuous Composite Sr-89, Sr-90 1x10-11 Sampler Particulate Sample Quarterly

0-ODCM-001 Revision 0024 Page 36 of 227 Table 2.2-2 (Page 2 of 3)

RADIOACTIVE GASEOUS WASTE MONITORING SAMPLING AND ANALYSIS PROGRAM TABLE NOTATION 1 The LLD is defined, for the purpose of this requirement, as the smallest concentration of radioactive material in a sample that will yield a net count above system background that will be detected with 95% probability with only a 5% probability of falsely concluding that a blank observation represents a "real" signal.

For a particular measurement system (which may include radiochemical separation):

LLD = 4.66 s b

E V 2.22E+06 Y exp (- t)

Where:

LLD = the "a priori" lower limit of detection (µCi/g or µCi/ml),

sb = the standard deviation of the background counting rate or of the counting rate of a blank sample as appropriate (cpm),

E = the counting efficiency (c/decay),

V = the sample size (g or ml) 2.22E+06 = the number of dpm/µCi, Y = the fractional radiochemical yield, when applicable,

= the radioactive decay constant for the particular radionuclide (s-1), and t = the elapsed time between midpoint of sample collection and time of counting (s).

Typical values of E, V, Y, and t should be used in the calculation It should be recognized that the LLD is defined as an a priori (before the fact) limit representing the capability of a measurement system and not an a posteriori (after the fact) limit for a particular measurement.

2 When samples are collected more often than that shown, the minimum detectable concentrations can be correspondingly higher.

3 The principal gamma emitters for which the LLD specification will apply are exclusively the following radionuclides: Kr-87, Kr-88, Xe-133, Xe-133m, Xe-135, and Xe-138 for gaseous emissions and Mn-54, Fe-59, Co-58, Co-60, Zn-65, Mo-99, Cs-134, Cs-137, Ce-141 and Ce-144 for particulate emissions.

This list does not mean that only these nuclides are to be detected and reported. Other peaks which are measurable and identifiable, together with the above nuclides, shall also be identified and reported. Nuclides which are below the LLD for the analyses should not be reported as being present at the LLD level for that nuclide.

0-ODCM-001 Revision 0024 Page 37 of 227 Table 2.2-2 (Page 3 of 3)

RADIOACTIVE GASEOUS WASTE MONITORING SAMPLING AND ANALYSIS PROGRAM TABLE NOTATION 4 Analysis shall also be performed if the radiation monitor alarm exceeds the setpoint value.

5 A grab sample is not required after deinerting, provided that:

- the reactor has not achieved criticality in the interim, and,

- the reactor coolant temperature has not reached or exceeded 212°F.

6 The primary coolant H-3 concentration in µCi/ml can be converted to µCi/cc and used to estimate the containment H-3 concentration (R38 960812 943).

0-ODCM-001 Revision 0024 Page 38 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.2 RADIOACTIVE EFFLUENTS 1/2.2.2 GASEOUS EFFLUENTS 1/2.2.2.2 DOSE - NOBLE GASES CONTROLS 1.2.2.2 In accordance with BFN Technical Specification 5.5.4.h, the air dose to areas at and beyond the SITE BOUNDARY (see Figure 3.1) due to noble gases released in gaseous effluents per unit shall be limited to the following:

a. During any calendar quarter, to 5 mrad for gamma radiation and 10 mrad for beta radiation;
b. During any calendar year, to 10 mrad for gamma radiation and 20 mrad for beta radiation.

APPLICABILITY: At all times.

ACTION:

a. With the calculated air dose from radioactive noble gases in gaseous effluents exceeding any of the above limits, prepare and submit to the Commission within 30 days, pursuant to ODCM Administrative Control 5.4, a Special Report that identifies the cause(s) for exceeding the limit(s) and defines the corrective actions that have been taken to reduce the releases and the proposed corrective actions to be taken to assure that subsequent releases will be in compliance with the above limits.

SURVEILLANCE REQUIREMENTS 2.2.2.2 Cumulative quarterly and yearly dose contributions from gaseous releases shall be determined using methods contained in ODCM Section 7.3 at least once every 31 days.

0-ODCM-001 Revision 0024 Page 39 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.2 RADIOACTIVE EFFLUENTS 1/2.2.2 GASEOUS EFFLUENTS 1/2.2.2.3 DOSE - I-131, I-133, TRITIUM AND RADIONUCLIDES IN PARTICULATE FORM WITH HALF-LIVES GREATER THAN EIGHT DAYS CONTROLS 1.2.2.3 In accordance with BFN Technical Specification 5.5.4.e and i, the dose to a MEMBER OF THE PUBLIC from radioiodines, radioactive materials in particulate form, and radionuclides other than noble gases with half-lives greater than 8 days in gaseous effluent released per unit to areas at and beyond the SITE BOUNDARY (see Figure 3.1) shall be limited to the following:

a. To any organ during any calendar quarter to 7.5 mrem;
b. To any organ during any calendar year to 15 mrem.

APPLICABILITY: At all times.

ACTION:

a. With the calculated dose from the release of Iodine-131, Iodine-133, tritium, and radionuclides in particulate form with half-lives greater than 8 days, in gaseous effluents exceeding any of the above limits, prepare and submit to the Commission within 30 days, pursuant to ODCM Administrative Control 5.4, a Special Report that identifies the cause(s) for exceeding the limit(s) and defines the corrective actions that have been taken to reduce the releases and the proposed corrective actions to be taken to assure that subsequent releases will be in compliance with the above limits.

SURVEILLANCE REQUIREMENTS 2.2.2.3 Cumulative quarterly and yearly dose contributions from gaseous releases shall be determined using methods contained in ODCM Section 7.4 at least once every 31 days.

0-ODCM-001 Revision 0024 Page 40 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.2 RADIOACTIVE EFFLUENTS 1/2.2.2 GASEOUS EFFLUENTS 1/2.2.2.4 GASEOUS RADWASTE TREATMENT CONTROLS 1.2.2.4 During operation above 25% power, the discharge of the SJAE must be routed through the charcoal adsorbers.

In accordance with BFN Technical Specification 5.5.4.f, the GASEOUS RADWASTE TREATMENT SYSTEM shall be operable and appropriate portions of the system shall be used to reduce releases of radioactivity when the projected doses in 31 days due to gaseous effluents from each unit, to areas at and beyond the SITE BOUNDARY, would exceed:

a. 0.2 mrad to air from gamma radiation, or
b. 0.4 mrad to air from beta radiation, or
c. 0.3 mrem to any organ of a MEMBER OF THE PUBLIC.

APPLICABILITY: At all times.

ACTION:

a. With gaseous radwaste being discharged without treatment for more than 7 days, prepare and submit to the Commission within 30 days, pursuant to ODCM Administrative Control 5.4, a Special Report that includes the following information:
1. Identification of the inoperable equipment or subsystems and the reason for inoperability,
2. Action(s) taken to restore the inoperable equipment to OPERABLE status, and
3. Summary description of action(s) taken to prevent a recurrence.

SURVEILLANCE REQUIREMENTS 2.2.2.4.1 During operation above 25% power, the position of the charcoal bed bypass valve will be verified daily.

2.2.2.4.2 Doses due to gaseous releases to areas at and beyond the SITE BOUNDARY shall be projected in accordance with Section 7.6 at least once per 31 days.

0-ODCM-001 Revision 0024 Page 41 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.2 RADIOACTIVE EFFLUENTS 1/2.2.3 TOTAL DOSE CONTROLS 1.2.3 In accordance with BFN Technical Specification 5.5.4.j, the dose or dose commitment to a real individual in an UNRESTRICTED AREA from all uranium fuel cycle sources is limited to < 25 mrem to the total body or any organ (except the thyroid, which is limited to < 75 mrem) over a period of one calendar year.

APPLICABILITY: At all times.

ACTION:

a. With the calculated doses from the release of radioactive materials in liquid or gaseous effluents exceeding twice the limits of Control 1.2.1.2, 1.2.2.2, or 1.2.2.3, calculations shall be made including direct radiation contributions from the units (including outside storage tanks, etc.) to determine whether the above limits of Control 1.2.3 have been exceeded.

If such is the case, prepare and submit to the Commission within 30 days, pursuant to ODCM Administrative Control 5.4, a Special Report that defines the corrective action to be taken to reduce subsequent releases to prevent recurrence of exceeding the above limits and includes the schedule for achieving conformance with the above limits. This Special Report, as defined in 10 CFR 20.2203, shall include an analysis that estimates the radiation exposure (dose) to a MEMBER OF THE PUBLIC in an UNRESTRICTED AREA from uranium fuel cycle sources, including all effluent pathways and direct radiation, for the calendar year that includes the release(s) covered by this report. It shall also describe levels of radiation and concentrations of radioactive material involved, and the cause of the exposure levels or concentrations. If the estimated dose(s) exceeds the above limits, and if the release condition resulting in violation of 40 CFR Part 190 has not already been corrected, the Special Report shall include a request for a variance in accordance with the provisions of 40 CFR Part 190. Submittal of the report is considered a timely request, and a variance is granted until staff action on the request is complete.

SURVEILLANCE REQUIREMENTS 2.2.3 Cumulative dose contributions from liquid and gaseous effluents shall be determined in accordance with ODCM Sections 6.3, 7.4, and 7.5 and the methods in ODCM Section 8.0.

0-ODCM-001 Revision 0024 Page 42 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.3 RADIOLOGICAL ENVIRONMENTAL MONITORING 1/2.3.1 MONITORING PROGRAM CONTROLS 1.3.1 The Radiological Environmental Monitoring Program (REMP) shall be conducted as specified in Table 2.3-1.

APPLICABILITY: At all times.

ACTION:

a. With the REMP not being conducted as specified in Table 2.3-1, prepare and submit to the Commission, in the Annual Radiological Environmental Operating Report, a description of the reasons for not conducting the program as required and the plans for preventing a recurrence.

Deviations are permitted from the required sampling schedule if specimens are unobtainable due to hazardous conditions, seasonal unavailability or malfunction of automatic sampling equipment. If the latter, every effort shall be made to complete corrective action prior to the end of the next sampling period. All deviations from the sampling schedule shall be reported in the Annual Radiological Environmental Operating Report.

b. With the level of radioactivity in an environmental sampling medium exceeding the reporting levels of Table 2.3-3 when averaged over any calendar quarter, prepare and submit to the Commission within 30 days from the end of the affected quarter a report which identifies the cause(s) for exceeding the limit(s) and defines the corrective actions to be taken to reduce radioactive effluents so that the potential annual dose to a member of the public is less than the calendar year limits of ODCM Controls 1.2.1.2, 1.2.2.2, and 1.2.2.3. When one or more of the radionuclides in Table 2.3-2 is detected in the sampling medium, this report shall be submitted if:

concentration(1) concentration(2)

+ + . . . 1.0 limit level(1) limit level(2)

When radionuclides other than those in Table 2.3-3 are detected and are the result of plant effluents, this report shall be submitted if the potential annual dose to a MEMBER OF THE PUBLIC is equal to or greater than the calendar year limits of ODCM Controls 1.2.1.2, 1.2.2.2, and 1.2.2.3. This report is not required if the measured level of radioactivity was not the result of plant effluents; however, in such an event, the condition shall be reported and described in the Annual Radiological Environmental Operating Report.

0-ODCM-001 Revision 0024 Page 43 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.3 RADIOLOGICAL ENVIRONMENTAL MONITORING 1/2.3.1 MONITORING PROGRAM CONTROLS ACTION (CONTINUED):

c. With milk or fresh leafy vegetable samples unavailable from one or more of the sample locations required by Table 2.3-1, identify locations for obtaining replacement samples, if available, and add them to the REMP within 30 days. The specific locations from which samples were unavailable may then be deleted from the monitoring program.

Pursuant to Control 1.3.1.b, identify the cause of the unavailability of samples and identify the new location(s), if available, for obtaining replacement samples in the next Annual Radiological Environmental Operating Report and also include a revised figure(s) and table(s) for the ODCM reflecting the new location(s).

The detection capabilities required by Table 2.3-2 are state-of-the art for routine environmental measurements in industrial laboratories.

It should be recognized that the LLD is defined as an a priori (before the fact) limit representing the capability of a measurement system and not as a posteriori (after the fact) limit for a particular measurement. Analyses shall be performed in such a manner that the stated LLDs will be achieved under routine conditions. Occasionally background fluctuations, unavoidably small sample sizes, the presence of interfering nuclides, or other uncontrollable circumstances may render these LLDs unachievable. In such cases, the contributing circumstances will be identified and described in the Annual Radiological Environmental Operating Report.

SURVEILLANCE REQUIREMENTS 2.3.1.1 The radiological environmental monitoring samples shall be collected pursuant to Table 2.3-1 from the locations given in the tables and figures listed below and shall be analyzed pursuant to the requirements of Table 2.3-1 and the detection capabilities required by Table 2.3-2.

2.3.1.2 If measured levels of radioactivity in a environmental sampling medium are determined to exceed the reporting level values of Table 2.3-3 when averaged over any calendar quarter sampling period, a report shall be submitted to the Commission pursuant to Control 1.3.1.b.

0-ODCM-001 Revision 0024 Page 44 of 227 Table 2.3-1 (1 of 3)

MINIMUM REQUIRED RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Exposure Pathway Number of Samples and/or and Sample Sampling and Type and Frequency Sample Locationsa Collection Frequency of Analysis

1. AIRBORNE Radioiodine/ Minimum of 5 Continuous operation Radioiodine canister:

Particulates locations of sampler with Analyze at least once sample collection as per 7 days for I-131.

required by dust loading but at least Particulate sampler:

once per 7 days. Analyze for gross beta radioactivity 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> following filter change.

Perform gamma isotopic analysis on each sample when gross beta activity is > 10 times the average of control samples. Perform gamma isotopic analysis on composite (by location) sample at least once per 92 days.

2. DIRECT At least 40 At least once per Gamma Dose. At least RADIATION locations with 92 days. once per 92 days.

2 dosimeters at each location.

a Sample locations are given in ODCM Section 9.0.

0-ODCM-001 Revision 0024 Page 45 of 227 Table 2.3-1 (2 of 3)

MINIMUM REQUIRED RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Exposure Pathway Number of Samples and/or and Sample Sampling and Type and Frequency Sample Locationsa Collection Frequency of Analysis

3. WATERBORNE
a. Surface 2 locations Composite sample Gamma isotopic collected over a analysis of each period of 31 composite sample.

days.b Tritium analysis of composite sample at least once per 92 days.

b. Drinking Minimum of 1 Composite sample Gross beta and gamma downstream collected over a isotopic analysis of location, or all period of 31 each composite sample.

water supplies days.b,c Tritium analysis of within 10 miles composite sample at downstream which least once per 92 are taken from days.

the Tennessee River

c. Sediment Minimum of 1 At least once per Gamma isotopic location. 184 days analysis of each sample.
d. Groundd a Sample locations are given in ODCM Section 9.0.

b Composite samples shall be collected by collecting an aliquot at intervals not exceeding 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.

c Composite samples shall be collected over a period of 14 days for I-131 if drinking water is obtained within 3 miles downstream of the plant.

d Ground water movement in the area has been determined to be from the plant site toward the Tennessee River. Since no drinking water wells exist between the plant and the river, monitoring of ground water is not required.

This statement has been determined based on the hydrology report statement.

The Tuscumbia-Fort Payne aquifer system provides volumes of water sufficient for domestic supplies and some municipal and industrial supplies in the region. Groundwater associated with this aquifer system is a calcium-bicarbonate type and can generally be used without extensive treatment. Groundwater supplies within a 50-mile radius of BFN were previously identified by TVA (1972). An off-site well survey was conducted in May 1995 to identify groundwater supplies within a two-mile radius of the BFN site and this information is provided by TVA (1999). The closest known public groundwater supply (Limestone County Water System, Well G-1) resides approximately two-miles north of BFN (ADEM, 2001). There is no groundwater use by BFN and site dewatering wells have been inactive since about 1984. All wells at the site used for environmental monitoring purposes only.

0-ODCM-001 Revision 0024 Page 46 of 227 Table 2.3-1 (3 of 3)

MINIMUM REQUIRED RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Exposure Pathway Number of Samples and/or and Sample Sampling and Type and Frequency Sample Locationsa Collection Frequency of Analysis

4. INGESTION
a. Milk 3 locations At least once per 15 I-131 analysis of days when animals each sample. Gamma are on pasture; isotopic analysis at at least once per least once per 31 days 31 days at other times.
b. Fish 2 samples One sample in Gamma isotopic season, or at least analysis on edible once per 184 days portions.

if not seasonal.

One sample of commercial and game species.

c. Food 2 locations At least once per Gamma isotopic Productse year at time of analysis on edible harvest portion.

a Sample locations are given in ODCM Section 9.0.

e Since water from the Tennessee River in the immediate area downstream is not used for irrigation purposes, the sampling of food products (primarily broad leaf vegetation) is not required unless milk sampling is not performed.

0-ODCM-001 Revision 0024 Page 47 of 227 Table 2.3-2 (1 of 2)

MAXIMUM VALUES FOR THE LOWER LIMIT OF DETECTION (LLD)a,b FOR ENVIRONMENTAL SAMPLES Airborne Food Particulate Fish Products Sediment Water or Gases (pCi/kg, Milk (pCi/kg, (pCi/kg, Analysis (pCi/L) (pCi/m3) wet) (pCi/L) wet) dry) gross beta 4 0.01 N/A N/A N/A N/A H-3 2000c N/A N/A N/A N/A N/A Mn-54 15 N/A 130 N/A N/A N/A Fe-59 30 N/A 260 N/A N/A N/A Co-58, 60 15 N/A 130 N/A N/A N/A Zn-65 30 N/A 260 N/A N/A N/A Zr-95 30 N/A N/A N/A N/A N/A Nb-95 15 N/A N/A N/A N/A N/A I-131 1d 0.07 N/A 1 60 N/A Cs-134 15 0.05 130 15 60 150 Cs-137 18 0.06 150 18 80 180 Ba-140 60 N/A N/A 60 N/A N/A La-140 15 N/A N/A 15 N/A N/A Table 2.3-2(a)

DETECTION CAPABILITIES FOR GROUNDWATER HARD-TO-DETECT NUCLIDES LOWER LIMITS OF DETECTION (LLD)

ANALYSIS WATER (pCi/L) 1,2 Fe-55 200 Ni-63 30 Sr-89 5 Sr-90 1 Gross Alpha 4 1

Multiply the values in this column by 10-9 to convert to units of Ci/ml 2

Table represents detection capabilities for groundwater samples monitored for contaminates due to spills or leaks

0-ODCM-001 Revision 0024 Page 48 of 227 Table 2.3-2 (2 of 2)

MAXIMUM VALUES FOR THE LOWER LIMIT OF DETECTION (LLD)a,b FOR ENVIRONMENTAL SAMPLES TABLE NOTATION a The LLD is the smallest concentration of radioactive material in a sample that will be detected with 95 percent probability with 5 percent probability of falsely concluding that a blank observation represents a "real" signal.

For a particular measurement system, which may include radiochemical separation:

LLD = 4.66 sb E V 2.22 Y exp(- t)

Where:

LLD = the "a priori" lower limit of detection as defined above, (as pCi/g or pCi/L).

sb = the standard deviation of the background counting rate or of the counting rate of a blank sample as appropriate, (cpm).

E = the counting efficiency, (c/decay).

V = the sample size (g or L).

2.22 = the number of dpm/pCi, Y = the fractional radiochemical yield, (when applicable).

= the radioactive decay constant for the particular radionuclide, (s-1) and t = for environmental samples is the elapsed time between sample collection, (or end of the sample collection period), and time of counting (for environmental samples, not plant effluent samples),

seconds.

Typical values of E, V, Y, and t should be used in the calculation.

It should be recognized that the LLD is defined as an a priori (before the fact) limit representing the capability of a measurement system and not as an a posteriori (after the fact) limit for a particular measurement.

b Other peaks which are measurable and identifiable shall be identified and reported.

c If no drinking water pathway exists, a value of 3000 pCi/L may be used.

d LLD for analysis of drinking water and surface water samples shall be performed by gamma spectroscopy at approximately 15 pCi/L. If levels greater than 15 pCi/L are identified in surface water samples downstream from the plant, or in the event of an unanticipated release of I-131, drinking water samples will be analyzed at an LLD of 1.0 pCi/L for I-131.

0-ODCM-001 Revision 0024 Page 49 of 227 Table 2.3-3 REPORTING LEVELS FOR RADIOACTIVITY CONCENTRATIONS IN ENVIRONMENTAL SAMPLES Airborne Particulate Water or gases Fish Milk Food Products Analysis (pCi/L) (pCi/m3) (pCi/Kg, wet) (pCi/L) (pCi/Kg, wet)

H-3 2 x 104(a) N.A N.A N.A. N.A.

Mn-54 1 x 103 N.A. 3 x 104 N.A. N.A.

Fe-59 4 x 102 N.A. 1 x 104 N.A. N.A.

Co-58 1 x 103 N.A. 3 x 104 N.A. N.A.

Co-60 3 x 102 N.A. 1 x 104 N.A. N.A.

Zn-65 3 x 102 N.A. 2 x 104 N.A. N.A.

Zr-Nb-95 4 x 102 N.A. N.A. N.A. N.A.

I-131 2(b) 0.9 N.A. 3 1 x 102 Cs-134 30 10 1 x 103 60 1 x 103 Cs-137 50 20 2 x 103 70 2 x 103 Ba-La-140 2 x 102 N.A. N.A. 3 x 102 N.A.

(a) For drinking water samples. This is 40 CFR Part 141 value.

(b) If no drinking water pathway exists, a value of 20 pCi/L may be used.

0-ODCM-001 Revision 0024 Page 50 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.3 RADIOLOGICAL ENVIRONMENTAL MONITORING 1/2.3.2 LAND USE CENSUS CONTROLS 1.3.2 A land use census shall be conducted and shall identify the location of the nearest milk animal, the nearest residence and the nearest garden1 of greater than 500 square feet producing vegetables in each of the 16 meteorological sectors within a distance of 5 miles. (For elevated releases as defined in Regulatory Guide 1.111, Revision 1, July 1977, the land use census shall also identify the locations of all milk animals and gardens of greater than 500 square feet producing fresh leafy vegetables in each of the 16 meteorological sectors within a distance of three miles.)

1 Broad leaf vegetation sampling may be performed at the SITE BOUNDARY in the direction sector with the highest D/Q in lieu of the garden census.

APPLICABILITY: At all times.

ACTION:

With a land use census identifying a location(s) which yields a calculated dose or dose commitment greater than the maximum value currently being calculated in Section 7.5, identify the new location(s) in the next Annual Radiological Environmental Operating Report.

With a land use census identifying a location(s) that yields a calculated dose or dose commitment (via the same exposure pathway) 20 percent greater than at a location from which samples are currently being obtained in accordance with ODCM Control 1.3.1, add the new location(s) to the REMP within 30 days if the owner consents. The sampling location(s), excluding the control station location, having the lowest calculated dose or dose commitment(s) (via the same exposure pathway) may be deleted from this monitoring program after October 31 of the year in which this land use census was conducted. Identify the new location(s) in the next Annual Radiological Environmental Operating Report and provide a revised figure(s) and table(s) reflecting the new location(s).

SURVEILLANCE REQUIREMENTS (see next page)

0-ODCM-001 Revision 0024 Page 51 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.3 RADIOLOGICAL ENVIRONMENTAL MONITORING 1/2.3.2 LAND USE CENSUS SURVEILLANCE REQUIREMENTS 2.3.2 The land use census shall be conducted at least once per calendar year between the dates of April 1 and October 1 using the following techniques:

1. Within a 2-mile radius from the plant or within the 15 mrem per year isodose line, whichever is larger, enumeration by a door-to-door or equivalent counting technique.
2. Within a 5-mile radius from the plant, enumeration by using appropriate techniques such as door-to-door survey, mail survey, telephone survey, aerial survey, or information from local agricultural authorities or other reliable sources.

0-ODCM-001 Revision 0024 Page 52 of 227 1/2 CONTROLS AND SURVEILLANCE REQUIREMENTS 1/2.3 RADIOLOGICAL ENVIRONMENTAL MONITORING 1/2.3.3 INTERLABORATORY COMPARISON PROGRAM CONTROLS 1.3.3 Analyses shall be performed on radioactive materials supplied as part of an Interlaboratory Comparison Program which has been approved by the Commission.

APPLICABILITY: At all times.

ACTION:

With analyses not being performed as required above, report the corrective actions taken to prevent a recurrence to the Commission in the Annual Radiological Environmental Operating Report.

SURVEILLANCE REQUIREMENTS 2.3.3 A summary of the results obtained as part of the above required Interlaboratory Comparison Program shall be included in the Annual Radiological Environmental Operating Report.

0-ODCM-001 Revision 0024 Page 53 of 227 BASES FOR SECTIONS 1.0 AND 2.0 CONTROLS AND SURVEILLANCE REQUIREMENTS NOTE The BASES contained in succeeding pages summarize the reasons for the Controls in Sections 1.0 and 2.0, but are not part of these Controls.

0-ODCM-001 Revision 0024 Page 54 of 227 BASES 1/2.1 EFFLUENT MONITORING INSTRUMENTATION 1/2.1.1 RADIOACTIVE LIQUID EFFLUENT MONITORING INSTRUMENTATION The radioactive liquid effluent instrumentation is provided to monitor and control, as applicable, the releases of radioactive materials in liquid effluents during actual or potential releases of liquid effluents. The alarm/trip setpoints for these instruments shall be calculated in accordance with guidance provided in the ODCM to ensure that the alarm/trip will occur prior to exceeding ten times the limits of 10 CFR Part 20 Appendix B, Table 2, Column 2. The OPERABILITY and use of this instrumentation is consistent with the requirements of General Design Criteria 60, 63, and 64 of Appendix A to 10 CFR Part 50.

The criteria for ensuring the reliability and accuracy of the radioactive liquid effluent instrumentation is listed in Table 2.1-1.

1/2.1.2 RADIOACTIVE GASEOUS EFFLUENT MONITORING INSTRUMENTATION The radioactive gaseous effluent instrumentation is provided to monitor and control, as applicable, the releases of radioactive materials in gaseous effluents during actual or potential releases of gaseous effluents. The alarm/trip setpoints for these instruments will be calculated in accordance with Section 7.2.1 to ensure that the alarm/trip will occur prior to exceeding ten times the limits of 10 CFR Part 20. The operability and use of this instrumentation is consistent with the requirements of General Design Criteria 60, 63, and 64 of Appendix A to 10 CFR Part 50.

The action required when the number of OPERABLE channels is less than the Minimum Channels Operable requirement is specified in the notes for Table 1.1-2. Exert best efforts to return the instruments to OPERABLE status within 30 days and, if unsuccessful, explain in the next Annual Radioactive Effluent Release Report why the inoperability was not corrected in a timely manner.

The criteria for ensuring the reliability and accuracy of the radioactive gaseous effluent instrumentation is listed in Table 2.1-2.

Two post treatment off-gas radiation monitors are provided and, when their trip point is reached, cause an isolation of the off-gas line. Isolation is initiated when both instruments reach their high trip point or one has an upscale trip and the other a downscale trip or both have a downscale trip.

Both instruments are required for trip but the instruments are set so that the instantaneous stack release rate limit given in Control 1.2.2.1 is not exceeded.

The off-gas post treatment monitors are connected in a 2-out-of-2 logic arrangement. Based on experience with instruments of similar design, a testing interval of once every three months has been found adequate.

0-ODCM-001 Revision 0024 Page 55 of 227 BASES 1/2.2 RADIOACTIVE EFFLUENTS 1/2.2.1 LIQUID EFFLUENTS 1/2.2.1.1 CONCENTRATION This requirement is provided to ensure that the concentration of radioactive materials released at any time in liquid waste effluents from the site to UNRESTRICTED AREAS will be less than or equal to ten times the concentration levels specified in 10 CFR Part 20, Appendix B, Table 2, Column 2.

This limitation provides additional assurance that the levels of radioactive materials in bodies of water outside the site will result in exposures within (1) the Section II.A limits of Appendix I to 10 CFR Part 50, and (2) the limits of 10 CFR Part 20.1301 (a)(1) to a member of the public. The concentration limit for noble gases is based upon the assumption that Xe-135 is the controlling radioisotope and its Maximum Permissible Concentration in air (submersion) was converted to an equivalent concentration in water using the methods described in International Commission of Radiological Protection (ICRP) Publication 2.

1/2.2.1.2 DOSE This requirement is provided to implement the dose requirements of Section II.A, III.A, and IV.A of Appendix I, 10 CFR Part 50. The requirement implements the guides set forth in Section II.A of Appendix I. Compliance with this control will be considered to demonstrate compliance with the 0.1 rem limit of 10 CFR Part 20.1301 (a)(1) per 56FR23374.

This action provides the required operating flexibility and at the same time implements the guides set forth in Section IV.A of Appendix I to assure that the releases of radioactive material in liquid effluents will be kept "as low as is reasonable achievable". Also, for fresh water sites with drinking water supplies which can potentially be affected by plant operations, there is reasonable assurance that the operation of the facility will not result in radionuclide concentrations in the finished drinking water that are in excess of the requirements of 40 CFR 141.

0-ODCM-001 Revision 0024 Page 56 of 227 BASES 1/2.2 RADIOACTIVE EFFLUENTS 1/2.2.1 LIQUID EFFLUENTS 1/2.2.1.2 DOSE (continued)

The dose calculations in Section 6.0 implement the requirements in Section III.A of Appendix I that conformance with the guides of Appendix I be shown by calculational procedures based on models and data such that the actual exposure of an individual through appropriate pathways is unlikely to be substantially underestimated. The equations specified in Section 6.0 for calculating the doses due to the actual release rates of radioactive materials in liquid effluents will be consistent with the methodology provided in Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Implementing Appendix I," October 1977 and Regulatory Guide 1.113, "Estimating Aquatic Dispersion of Effluents from Accidental and Routine Reactor Releases for the Purpose of Implementing Appendix I" April 1977. NUREG-0133 provides methods for dose calculations consistent with Regulatory Guides 1.109 and 1.113.

0-ODCM-001 Revision 0024 Page 57 of 227 BASES 1/2.2 RADIOACTIVE EFFLUENTS 1/2.2.1 LIQUID EFFLUENTS 1/2.2.1.3 LIQUID WASTE TREATMENT This section requires that the appropriate portions of the liquid radwaste treatment system be used when specified. This provides assurance that the releases of radioactive materials in liquid effluents will be kept "as low as is reasonably achievable." This requirement implements the requirements of 10 CFR Part 50.36a, General Design Criterion 60 of Appendix A to 10 CFR Part 50 and design objective Section II.D of Appendix I to 10 CFR 50. The specified limits governing the use of appropriate portions of the liquid radwaste treatment system were specified as a suitable fraction of the guide set forth in Section II.A of Appendix I, 10 CFR 50, for liquid effluents.

This section also requires submittal of a special report if the limiting values are exceeded and unexpected failures of non-redundant radwaste processing equipment halt waste treatment.

1/2.2.2 GASEOUS EFFLUENTS 1/2.2.2.1 DOSE RATE This requirement is provided to ensure that the external dose rate at anytime at the SITE BOUNDARY from gaseous effluents from all units on the site will be within the limits of 10 CFR Part 20.1301 (a)(2) for UNRESTRICTED AREAS. The 500 mrem/yr dose rate will ensure that the instanteous dose rate is well below 2 mrem/hr. These limits provide reasonable assurance that radioactive material discharged in gaseous effluents will not result in the exposure of a MEMBER OF THE PUBLIC in an UNRESTRICTED AREA, to annual average concentrations exceeding the limits specified in Appendix B, Table 2 of 10 CFR Part 20. For MEMBERS OF THE PUBLIC who may at times be within the SITE BOUNDARY, the occupancy of the MEMBER OF THE PUBLIC will be sufficiently low to compensate for any increase in the atmospheric diffusion factor above that for the SITE BOUNDARY.

The specified release rate limits restrict, at all times, the corresponding gamma and beta dose rates to an individual at or beyond the SITE BOUNDARY to < 500 mrem/year to the total body or < 3000 mrem/year to the skin.

These release rates also restrict, at all times, the corresponding thyroid dose rate above background to an infant via the cow-milk-infant pathway to

< 1500 mrem/year for the nearest cow to the plant.

The action for this requirement requires that appropriate corrective action(s) be taken to reduce gaseous effluent releases if the limits are exceeded.

0-ODCM-001 Revision 0024 Page 58 of 227 BASES 1/2.2 RADIOACTIVE EFFLUENTS 1/2.2.2 GASEOUS EFFLUENTS 1/2.2.2.2 DOSE - NOBLE GASES This requirement is provided to implement the requirements of Section II.B, III.A, and IV.A of Appendix I, 10 CFR Part 50. The limits are the guides set forth in Section II.C of Appendix I.

Compliance with this control will be considered to demonstrate compliance with the 0.1 rem limit of 10 CFR 20.1301 (a)(1) per 56FR23374.

The action to be taken for exceeding these limits provides the required operating flexibility and at the same time implements the guides set forth in Section IV.A of Appendix I to assure that the releases of radioactive material in gaseous effluents will be kept "as low as reasonably achievable." Section 7.0 calculational methods implement the requirements in Section III.A of Appendix I that conformance with the guides of Appendix I be shown by calculational procedures based on models and data such that the actual exposure of an individual through appropriate pathways is unlikely to be substantially underestimated. Section 7.0 calculational methods for calculating the doses due to the actual release rates of the subject materials are consistent with the methodologies provided in NUREG/CR-1004, "A Statistical Analysis of Selected Parameters for Predicting Food Chain Transport and Internal Dose of Radionuclides."

October 1979 and Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purposes of Evaluating Compliance with 10 CFR Part 50, "Appendix I," Revision 1, October 1977 and Regulatory Guide 1.111, "Methods for Estimating Atmospheric Transport and Dispersion of Gaseous Effluents in Routine Releases from Light-Water Cooled Reactors," Revision 1, July 1977.

These ODCM equations also provide for determining the air doses at the exclusion area boundary are based upon the historical average atmospheric conditions. NUREG-0133 provides methods for dose calculations consistent with Regulatory Guides 1.109 and 1.111.

If these limits are exceeded, this section requires that a special report be prepared and submitted to explain violations of the limiting doses contained in the section above.

0-ODCM-001 Revision 0024 Page 59 of 227 BASES 1/2.2 RADIOACTIVE EFFLUENTS 1/2.2.2 GASEOUS EFFLUENTS 1/2.2.2.3 DOSE - I-131, I-133, TRITIUM AND RADIONUCLIDES IN PARTICULATE FORM WITH HALF-LIVES GREATER THAN EIGHT DAYS This requirement is provided to implement the requirements of Section II.C, III.A, and IV of Appendix I, 10 CFR Part 50. The limits are the guides set forth in Section II.C of Appendix I. Compliance with this control will be considered to demonstrate compliance with the 0.1 rem limit of 10 CFR 20.1301 (a)(1) per 56FR23374.

The action to be taken for exceeding these limits provides the required operating flexibility and at the same time implements the guides set forth in Section IV.A of Appendix I to assure that the releases of radioactive material in gaseous effluents will be kept "as low as reasonably achievable." Section 7.0 calculational methods implement the requirements in Section III.A of Appendix I that conformance with the guides of Appendix I be shown by calculational procedures based on models and data such that the actual exposure of an individual through appropriate pathways is unlikely to be substantially underestimated.

Section 7.0 calculational methods for calculating the doses due to the actual release rates of the subject materials are consistent with the methodologies provided in NUREG/CR-1004, "A Statistical Analysis of Selected Parameters for Predicting Food Chain Transport and Internal Dose of Radionuclides," October 1979 and Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purposes of Evaluating Compliance with 10 CFR Part 50, Appendix I," Revision 1, October 1977 and Regulatory Guide 1.111, "Methods for Estimating Atmospheric Transport and Dispersion of Gaseous Effluents in Routine Releases from Light-Water Cooled Reactors,"

Revision 1, July 1977. These equations also provide for determining the actual doses based upon the historical average atmospheric conditions.

The release rate specifications for iodines, radioactive material in particulate form and radionuclides other than noble gases are dependent on the existing radionuclide pathways to man in the UNRESTRICTED AREA.

The pathways which were examined in the development of these calculations were: 1) individual inhalation of airborne radionuclides,

2) deposition of radionuclides onto green leafy vegetation with subsequent consumption by man, 3) deposition onto grassy areas where milk animals and meat producing animals graze with consumption of the milk and meat by man, and 4) deposition on the ground with subsequent exposure of man.

If these limits are exceeded, this section requires that a special report be prepared and submitted to explain violations of the limiting doses contained in the section above.

0-ODCM-001 Revision 0024 Page 60 of 227 BASES 1/2.2 RADIOACTIVE EFFLUENTS 1/2.2.2 GASEOUS EFFLUENTS 1/2.2.2.4 GASEOUS RADWASTE TREATMENT This requires that the offgas charcoal adsorber beds be used when specified to treat gaseous effluents prior their release to the environment. This provides reasonable assurance that the release of radioactive materials in gaseous effluents will be kept "as low as is reasonable achievable". This requirement implements the requirements of 10 CFR Part 50.36a, General Design Criterion 60 of Appendix A to 10 CFR Part 50, and design objective Section II.D of Appendix I to 10 CFR Part 50. The specified limits governing the use of appropriate portions of the systems were specified as a suitable fraction of the guide set forth in Sections II.B and II.C of Appendix I, 10 CFR Part 50, for gaseous effluents.

This action requires that a special report be prepared and submitted to explain reasons for any failure to comply with the above requirements.

1/2.2.3 TOTAL DOSE This requirement is provided to meet the dose limitations of 40 CFR 190.

Compliance with this control will be considered to demonstrate compliance with the 0.1 rem limit of 10 CFR 20.1301 (a)(1) per 56FR23374. This requirement requires the preparation and submittal of a Special Report whenever the calculated doses from plant radioactive effluents exceed twice the design objective doses of Appendix I. For sites containing up to four reactors, it is highly unlikely that the resultant dose to a MEMBER OF THE PUBLIC will exceed the dose limits of 40 CFR 190 if the individual reactors remain within the reporting requirement level. The Special Report will describe a course of action which should result in the limitation of dose to a MEMBER OF THE PUBLIC for the calendar year to be within 40 CFR 190 limits. For the purposes of the Special Report, it may be assumed that the dose commitment to the MEMBER OF THE PUBLIC from other fuel cycle sources is negligible, with the exception that dose contributions from other nuclear fuel cycle facilities within a radius of five miles must be considered.

1/2.3 RADIOLOGICAL ENVIRONMENTAL MONITORING 1/2.3.1 MONITORING PROGRAM The REMP required by this section provides measurements of radiation and radioactive materials in those exposure pathways and for those radionuclides, which lead to the highest potential radiation exposures of individuals resulting from the station operation. This monitoring program thereby supplements the

0-ODCM-001 Revision 0024 Page 61 of 227 BASES 1/2.3 RADIOLOGICAL ENVIRONMENTAL MONITORING 1/2.3.1 MONITORING PROGRAM (continued) radiological effluent monitoring program by verifying that the measurable concentration of radioactive materials and levels of radiation are not higher than expected on the basis of the effluent measurements and modeling of the environmental exposure pathways. The REMP satisfies the requirements of 10 CFR 50, Appendix A, Criteria 64 and 10 CFR 50, Appendix I, Section IV.B.2.

1/2.3.2 LAND USE CENSUS This requirement is provided to ensure that changes in the use of UNRESTRICTED AREAS are identified and that modifications to the monitoring program are made if required by the results of this census.

The best survey information from the door-to-door, mail, telephone, aerial or consulting with local authorities shall be used. This census satisfies the requirements of Section IV.B.3 of Appendix I to 10 CFR Part 50. Restricting the census to gardens of greater than 500 square feet provides assurance that significant exposure pathways via the leafy vegetables will be identified and monitored since a garden of this size is the minimum required to produce the quantity (26 kg/year) of leafy vegetation assumed in Regulatory Guide 1.109 for consumption by a child. To determine this minimum garden size, the following assumptions were used: 1) that 20% of the garden was used for growing broad leaf vegetation (i.e., similar to lettuce and cabbage), and 2) a vegetation yield of 2 kg/square meter.

1/2.3.3 INTERLABORATORY COMPARISON PROGRAM The requirement for participation in an Interlaboratory Comparison Program is provided to ensure that independent checks on the precision and accuracy of the measurements of radioactive materials in environmental sample matrices are performed as part of the quality assurance program for environmental monitoring in order to demonstrate that the results are reasonably valid.

0-ODCM-001 Revision 0024 Page 62 of 227 SECTION 3.0 DEFINITIONS

0-ODCM-001 Revision 0024 Page 63 of 227 3.0 DEFINITIONS The defined terms in this section appear in capitalized type in the text and are applicable throughout these controls.

3.0.A. CHANNEL CALIBRATION A CHANNEL CALIBRATION shall be the adjustment, as necessary, of the channel output such that it responds with the necessary range and accuracy to known values of the parameter which the channel monitors.

The CHANNEL CALIBRATION shall encompass the entire channel including alarm and/or trip functions, and shall include the CHANNEL FUNCTIONAL TEST. The CHANNEL CALIBRATION may be performed by any series of sequential, overlapping, or total channel steps such that the entire channel is calibrated. Non-calibratable components shall be excluded from this requirement, but will be included in CHANNEL FUNCTIONAL TEST and SOURCE CHECK.

3.0.B. CHANNEL FUNCTIONAL TEST A CHANNEL FUNCTIONAL TEST shall be:

a. Analog channels - the injection of a simulated signal into the channel as close to the sensor as practicable to verify OPERABILITY including alarm and/or trip functions.
b. Bistable channel - the injection of a simulated signal into the sensor to verify OPERABILITY including alarm and/or trip function.

3.0.C. GASEOUS WASTE TREATMENT SYSTEM The GASEOUS WASTE TREATMENT SYSTEM consists of the charcoal adsorber vessels installed in the discharge of the steam jet air ejector (SJAE) to provide delay to a unit's offgas activity prior to release.

3.0.D. DOSE EQUIVALENT I-131 DOSE EQUIVALENT I-131 shall be that concentration of I-131 (µCi/g) which alone would produce the same thyroid dose as the quantity and isotopic mixture of I-131, I-132, I-133, I-134, and I-135 actually present. The thyroid dose conversion factors used for this calculation shall be those listed in Table III of TID-14844, "Calculation of Distance Factors for Power and Test Reactor Sites."

3.0.E. MEMBER(S) OF THE PUBLIC MEMBER(S) OF THE PUBLIC as defined in 10 CFR 20, is any individual except when that individual is receiving an occupational dose.

0-ODCM-001 Revision 0024 Page 64 of 227 DEFINITIONS 3.0.F. OPERABLE - OPERABILITY A system, subsystem, train, component, or device shall be OPERABLE or have OPERABILITY when it is capable of performing its specified function(s). Implicit in this definition shall be the assumption that all necessary attendant instrumentation, controls, normal or emergency electrical power sources, cooling or seal water, lubrication or other auxiliary equipment that are required for the system, subsystem, train, component, or device to perform its function(s) are also capable of performing their related support function(s).

3.0.G. PURGE - PURGING PURGE or PURGING is the controlled process of discharging air or gas from the primary containment to maintain temperature, pressure, humidity, concentration or other operating condition, in such a manner that replacement air or gas is required to purify the containment.

3.0.H. RATED POWER RATED POWER refers to operation at a reactor power of 3,293 MWt (for a licensed thermal power of 3,293 MWt) or 3,458 MWt (for a licensed thermal power of 3,458 MWt); this is also termed 100 percent power and is the maximum power level authorized by the operating license. Rated steam flow, rated coolant flow, rated neutron flux, and rated nuclear system pressure refer to the values of these parameters when the reactor is at rated power. Design power, the power to which the safety analysis (for a licensed thermal power of 3,293 MWt) applies, corresponds to 3,440 MWt.

3.0.I. SITE BOUNDARY The SITE BOUNDARY as defined in 10 CFR 20, shall be that line beyond which the land or property is not owned, leased, or otherwise controlled by TVA (see Figure 3.1).

3.0.J. SOURCE CHECK A SOURCE CHECK shall be the qualitative assessment of channel response when the channel sensor is exposed to a radioactive source or multiple of sources.

0-ODCM-001 Revision 0024 Page 65 of 227 DEFINITIONS 3.0.K. UNRESTRICTED AREA An UNRESTRICTED AREA shall be any area, at or beyond the SITE BOUNDARY to which access is not controlled by the licensee for purposes of protection of individuals from exposure to radiation and radioactive materials or any area within the SITE BOUNDARY used for residential quarters or industrial, commercial, institutional, and/or recreational purposes (see Figure 3.1).

3.0.L. VENTING VENTING is the controlled process of discharging air or gas from primary containment to maintain temperature, pressure, humidity, concentration, or other operating condition, in such a manner that replacement air or gas is not provided or required. Vent, used in system names, does not imply a VENTING process.

3.0.M. CONTROLLED AREA A CONTROLLED AREA, as defined in 10 CFR 20, is the area outside the RESTRICTED AREA, but inside the SITE BOUNDARY, access to which can be limited by TVA for any reason, (See Figure 3.1).

3.0.N. RESTRICTED AREA The RESTRICTED AREA, as defined in 10 CFR Part 20, is that area, access to which is limited by the licensee for purpose of protecting individuals against undue risks from exposure to radiation and radioactive materials. The permanent RESTRICTED AREA is shown on Figure 3.1, but temporary restricted areas outside the permanent RESTRICTED AREA may be defined by BFN Site.

3.0.P. MODE A MODE shall correspond to any one inclusive combination of mode switch position, average reactor coolant temperature, and reactor vessel head closure bolt tensioning specified in Table 3.2 with fuel in the reactor vessel.

0-ODCM-001 Revision 0024 Page 66 of 227 Table 3.1 FREQUENCY NOTATION Notation Frequency S At least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

D At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

W At least once per 7 days.

M At least once per 31 days.

Q At least once per 92 days.

SA At least once per 184 days.

18M At least once per 18 months.

N.A. Not Applicable P Completed prior to each release

0-ODCM-001 Revision 0024 Page 67 of 227 Table 3.2 MODES MODE TITLE REACTOR MODE AVERAGE REACTOR COOLANT SWITCH POSITION TEMPERATURE

(°F) 1 Power Operation Run NA (a) 2 Startup Refuel or Startup/Hot NA Standby (a) 3 Hot Shutdown Shutdown >212 (a) 4 Cold Shutdown Shutdown 212 (b) 5 Refueling Shutdown or Refuel NA (a) All reactor vessel head closure bolts fully tensioned.

(b) One or more reactor vessel head closure bolts less than fully tensioned.

0-ODCM-001 Revision 0024 Page 68 of 227 Figure 3.1 LAND SITE BOUNDARY

0-ODCM-001 Revision 0024 Page 69 of 227 SECTION 4.0 (NOT USED)

0-ODCM-001 Revision 0024 Page 70 of 227 SECTION 5.0 ADMINISTRATIVE CONTROLS

0-ODCM-001 Revision 0024 Page 71 of 227 5.0 ADMINISTRATIVE CONTROLS 5.1 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT The Annual Radiological Environmental Operating Report shall include summaries, interpretations, and an analysis of trends of the results of the radiological environmental surveillance activities for the report period, including a comparison with pre-operational studies, operational controls (as appropriate), and previous environmental surveillance reports and an assessment of the observed impacts of the plant operation on the environment. The report shall also include the results of land use censuses required by Control 1.3.2. If harmful effects or evidence of irreversible damage are detected by the monitoring, the report shall provide an analysis of the problems and a planned course of action to alleviate the problem.

The Annual Radiological Environmental Operating Report shall include summarized and tabulated results in the format of Regulatory Guide 4.8, December 1975 of all radiological environmental samples taken during the report period. In the event that some results are not available for inclusion with the report, the report shall be submitted noting and explaining the reasons for the missing results. The missing data shall be submitted as soon as possible in a supplementary report.

The report shall also include the following: a summary description of the REMP; a map of all sampling locations keyed to a table giving distances and directions from one reactor; and the results of licensee participation in the Interlaboratory Comparison Program required by Control 1.3.3.

5.2 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT Annual Radioactive Effluent Release Reports shall include a summary of the quantities of radioactive liquid and gaseous effluents and solid waste shipped from the plant as delineated in Regulatory Guide 1.21, "Measuring, Evaluating, and Reporting Radioactivity in Solid Wastes and Releases of Radioactive Materials in Liquid and Gaseous Effluents from Light-Water-Cooled Nuclear Power Plants," Revision 1, June 1974, with data summarized on a quarterly basis following the format of Appendix B thereof.

The report shall include a summary of the meteorological conditions concurrent with the release of gaseous effluents during each quarter as outlined in Regulatory Guide 1.21, Revision 1, with data summarized on a quarterly bases following the format of Appendix B thereof. Calculated offsite dose to members of the public resulting from the release of liquid and gaseous effluents and their subsequent dispersion in the river and atmosphere shall be reported as recommended in Regulatory Guide 1.21, Revision 1.

0-ODCM-001 Revision 0024 Page 72 of 227 5.0 ADMINISTRATIVE CONTROLS 5.2 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (continued)

The Radioactive Effluent Release Report shall include results above detection limits from any groundwater samples obtained during the reporting period that are not described in the ODCM.

The Radioactive Effluent Release Report shall include any assigned doses that were performed as a result of a spill or leak from the site that occurred during the reporting period.

The Radioactive Effluent Release Report shall include a summary of any on-site spills and leaks that occurred during the reporting period that were communicated to offsite agencies.

The Annual Radioactive Effluent Release Report shall include the information regarding solid waste as specified in the Process Control Program.

5.3 OFFSITE DOSE CALCULATION MANUAL CHANGES As required by BFN TS 5.5.1, changes to the ODCM:

1. Shall be documented and records of reviews performed shall be retained as required by process described in TVA-NQA-PLN89-A.

This documentation shall contain:

a. Sufficient information to support the change(s) together with the appropriate analyses or evaluations justifying the change(s), and
b. A determination that the change will maintain the levels of radioactive effluent control required by 10 CFR 20.1302, 40 CFR 190, 10 CFR 50.36a, and 10 CFR 50, Appendix I, and not adversely impact the accuracy or reliability of effluent, dose, or setpoint calculations.
2. Shall become effective after review and acceptance by the process described in TVA-NQA-PLN89-A.
3. Shall be submitted to the NRC in the form of a complete, legible copy of the entire ODCM as a part of or concurrent with the Annual Radioactive Effluent Report for the period of the report in which any change to the ODCM was made. Each change shall be identified by markings in the margin of the affected pages, clearly indicating the area of the page that was changed, and shall indicate the date (i.e., month and year) the change was implemented.

0-ODCM-001 Revision 0024 Page 73 of 227 5.4 SPECIAL REPORTS Special Reports shall be submitted to the NRC in accordance with 10 CFR 50.4.

5.5 QUALITY ASSURANCE PROCEDURES Quality Assurance procedures shall be established, implemented, and maintained for effluent and environmental monitoring, using the guidance in Regulatory Guide 1.21, Rev. 1, June 1974 and Regulatory Guide 4.1, April 1975 or Regulatory Guide 4.15, Dec. 1977.

0-ODCM-001 Revision 0024 Page 74 of 227 SECTION 6.0 LIQUID EFFLUENTS

0-ODCM-001 Revision 0024 Page 75 of 227 6.0 - LIQUID EFFLUENTS RELEASE POINTS The minimum flow available for dilution of radwaste are shown below:

-- open - 2 pumps @ 200,000 gpm/pump------

Radwaste -----> ----> Discharge Conduit

-- helper - 100,000 gpm -------------------

0-ODCM-001 Revision 0024 Page 76 of 227 6.1 LIQUID RELEASES 6.1.1 Pre-release Analysis/ECL - Sum of the Ratios Prior to a batch release, a grab sample will be analyzed to determine the concentration (Ci) of each gamma emitting radionuclide i in the radwaste tank. The following equation is used to calculate effluent concentration limit (ECL) fractions (Mi).

Ci Mi = (6.1)

ECLi where:

Mi = ECL fraction of radionuclide i.

Ci = concentration of radionuclide i in the radwaste tank, µCi/ml.

ECLi = ECL of radionuclide i as specified in Control 1.2.1.1, µCi/ml.

The sum of the ratios (R) will be calculated by the following relationship:

R = Mi (6.2) i where:

R = the sum of the ratios.

Mi = ECL fraction from equation 6.1.

6.1.2 Release Flow Rate Calculations The sum of the ratios at the diffuser pipes must be 10 due to a liquid release. The following relationship will assure this criterion is met:

R[f/(f+F)] 10 (6.3) where:

f = the effluent flow rate (gallons/minute) before dilution.

R = the sum of the ratios as determined by Equation 6.2.

F = minimum dilution flow rate for prerelease analysis.

The allowable release rate is calculated before each release and the release rate is continuously monitored during the release so that the ECL limit is not exceeded.

0-ODCM-001 Revision 0024 Page 77 of 227 6.1.3 Post-release Analysis A post-release analysis will be done using actual release data to ensure that the limits specified in Control 1.2.1.1 were not exceeded.

A composite list of concentrations (Ci) by isotope, will be used with actual liquid radwaste (f) and dilution (F) flow rates (or volumes) during the release. The data will be substituted into Equations 6.1, 6.2 and 6.3 to demonstrate compliance with the limits in Control 1.2.1.1. This data and setpoints will be recorded in auditable records by plant personnel.

0-ODCM-001 Revision 0024 Page 78 of 227 6.2 INSTRUMENT SETPOINTS Alarm/trip setpoints for each liquid monitor will be established and set such that Equation 6.3 is satisfied. The locations and identification numbers for each liquid effluent radiation detector are shown in Figures 6.1 and 6.2. This section of the ODCM describes the methodology that will be used to determine allowable values. The allowable values are then used to determine the physical settings on the monitors. The physical settings are calculated in the applicable Scaling and Setpoint Document.

6.2.1 Release Point Monitor Allowable Values There is only one point through which routine releases are made from BFN, the Liquid Radwaste System. All releases from the Liquid Radwaste System are in a batch mode, and the monitor is looking at an undiluted waste stream as it comes out of a tank. The purpose of the monitor setpoint for these batch releases is to identify any release that would have the potential to exceed ten times the 10 CFR 20 limits after dilution.

Allowable values used to determine the setpoints are calculated as described here.

For each release, a setpoint is calculated based on the monitor response to the activity in the release stream if the release were large enough to exceed ten times the 10 CFR 20 limits after dilution. This maximum calculated setpoint, Smax, is calculated using Equation 6.4 below. A comparison is made between this calculated setpoint and the default setpoint (see Section 6.2.2) to determine which is used. The actual monitor setpoint for the release is set equal to the default setpoint, or to the maximum calculated setpoint, whichever is less.

Calculated Maximum Monitor Setpoint 10* SF (Fw + (FD

  • Fdil))

Smax = (ER - B) + B (6.4)

Fw R where:

SF = safety factor for the monitor.

Fw = flow of waste stream, gpm.

Fdil = flow of the dilution stream, gpm.

FD = fraction of dilution flow allocated to this release point. For BFN this fraction is equal to one.

B = background, cpm.

R = sum of the ratios for the release point as calculated in Section 6.1.1.

ER = expected monitor response, cpm,

= B + Ei

  • Ci (6.5) i where:

B = monitor background, cpm.

Ei = monitor efficiency for nuclide i, cpm per µCi/cc.

Ci = tank concentration of nuclide i, µCi/cc.

0-ODCM-001 Revision 0024 Page 79 of 227 6.2.2 Default Allowable Values 6.2.2.1 Radwaste Discharge Monitor The default allowable value for the radwaste discharge monitor (RM-90-130), shown in Figures 6.1 and 6.2, will be established using the methodology below. The alarm/trip allowable value will be set such that Equation 6.3 is satisfied. The default trip allowable value for the monitor, which will automatically isolate the release, is set at less than or equal to the limit in Control 1.2.1.1. The alarm allowable value is set at 90% or less of the trip allowable value.

The default maximum activity concentration1 of liquid radwaste that can be discharged can be calculated as:

A = F + f f

  • WFi i

ECL i

where:

A = default maximum batch activity concentration, µCi/ml.

ECLi = ECL of radionuclide i as specified in Control 1.2.1.1, µCi/ml.

WFi = weighting factor for nuclide i, defined as the fraction of the total concentration which is attributed to nuclide i.

F = dilution water flow rate, gpm.

f = maximum discharge flow rate, gpm.

1 The default maximum activity concentration is based on a selected isotopic mixture so that an allowable value can be calculated. The selected isotopic mixture will be documented in 0-TI-45. If ten times the actual batch ECL fraction is less restrictive than ten times the ECL fraction for the selected isotopic mixture, then the actual activity concentration may be higher than the calculated maximum activity concentration; this is the case for which the maximum allowable value defined in Section 6.2.1 would be indicated.

0-ODCM-001 Revision 0024 Page 80 of 227 6.2.2.1 Radwaste Discharge Monitor (continued)

The default monitor isolation allowable value, in cps, for releases is calculated using the following equation:

Monitor Isolation Allowable Value = (A

  • WFi*Ei) + B i

where:

A = maximum batch activity concentration as calculated above, µCi/ml WFi = weighting factor for nuclide i, defined as the fraction of the total concentration which is attributed to nuclide i Ei = efficiency of the monitor for nuclide i, cps/µCi/ml B = monitor background, cps The calculation of these allowable values are documented further in 0-TI-45, including the numerical values for each of the parameters described above.

6.2.2.2 Raw Cooling Water and Residual Heat Removal Service Water Monitors The allowable value for the Raw Cooling Water (RCW) monitors and the Residual Heat Removal Service Water (RHRSW) monitors (RM-90-132 and RM-90-133,134 respectively), shown in Figure 6.1, will be established using the methodology below. The alarm/trip allowable values will be set such that Equation 6.3 is satisfied. The allowable values for these monitors, which will alarm in the control room, are based on ten times the 10 CFR 20 Appendix B concentration limits. These allowable values are also based on a selected isotopic mixture.

The monitor alarm allowable values, in cpm, for the RCW and RHRSW effluent monitors are calculated using the following equation:

Monitor Allowable Values (A

  • WFi*Ei) + B i

where:

A = total activity concentration, µCi/ml.

WFi = weighting factor for nuclide i, defined as the fraction of the total concentration which is attributed to nuclide i.

Ei = efficiency of the monitor for nuclide i, cpm/µCi/ml.

B = monitor background, cpm.

The calculation of these allowable values are documented further in 0-TI-45, including the numerical values for each of the parameters described above.

0-ODCM-001 Revision 0024 Page 81 of 227 6.3 CUMULATIVE LIQUID EFFLUENT DOSE CALCULATION Doses due to liquid effluents are calculated for each release for all age groups (adult, teen, child and infant) and organs (bone, liver, total body, thyroid, skin, kidney, lung and GI tract). Pathways considered are drinking water ingestion, fish consumption and shoreline recreation. The maximum individual dose from drinking water is assumed to be that calculated at the location immediately downstream from the diffuser. The maximum individual dose from fish ingestion is assumed to be that calculated for the consumption of fish caught anywhere between the plant and the first downstream dam (Wheeler Dam). The maximum potential recreation dose is calculated for a location immediately downstream of the plant outfall. Dose factors for these age groups and pathways are calculated as described in Section 6.7. For pathways with no age or organ specific dose factors (i.e., shoreline recreation), the total body dose will be added to the internal organ dose for all age groups.

6.3.1 Dose Calculation The general equation for the dose calculation for each organ j is:

Dj = Aij T Ci D (6.6) i where:

Aij = the total dose factor to the total body or any organ j for nuclide i, mrem/h per µCi/ml. The total dose factor is the sum of the dose factors for water ingestion, fish ingestion, and shoreline recreation, as defined in Section 6.7.

T = the length of time period over which the concentrations and the flows are averaged for the liquid release, h.

Ci = the average concentration of radionuclide i, in undiluted liquid effluent during the time period T from any liquid release,

µCi/ml.

D = the near field average dilution factor for Ci during any effluent release.

= FLOWw 0.30 RF where:

FLOWw = maximum undiluted liquid waste flow during the release, cfs.

0.30 = mixing factor of effluent in river, defined as the percentage of the riverflow which is available for dilution of the release.

RF = default riverflow, cfs. For each release, this value is set to 44,000 cfs (the average monthly riverflow for the period of 1986-1992).

0-ODCM-001 Revision 0024 Page 82 of 227 6.3.1 Dose Calculation (continued)

From the four age groups considered, the maximum is determined by comparing all organ doses for all age groups. The age group with the highest single organ dose is selected as the critical age group.

6.3.2 Cumulative Doses Quarterly and annual sums of all doses are determined for each release to compare to the limits given in ODCM Control 1.2.1.2. These quarterly and annual sums will be the sum of all the doses for each release in the quarter or year respectively.

6.3.3 Comparison to Limits The cumulative calendar quarter and calendar year doses are compared to the limits in ODCM Control 1.2.1.2 prior to and after each liquid release.

0-ODCM-001 Revision 0024 Page 83 of 227 6.4 LIQUID RADWASTE TREATMENT SYSTEM The Liquid Radwaste Treatment System (LRTS) shall be maintained and operated to keep releases ALARA. A flow diagram for the LRTS is given in Figure 6.2.

0-ODCM-001 Revision 0024 Page 84 of 227 6.5 DOSE PROJECTIONS There are two acceptable methods for projecting offsite dose due to the releases of radioactive materials in liquid. Dose projections may be done by:

1. Averaging the calculated dose for the most recent month and the calculated dose for the previous month and assigning that average dose as the projection for the current month or,
2. The use of the following equations:

Dprojtb= td

  • Dtbq (6.7a) d Dprojorgan= td
  • Doq (6.7b) d where:

Dprojtb = Maximum total body dose projection for the current 31-day period, mrem.

Dprojorgan = Maximum organ dose projection for the current 31-day period, mrem Dtbq = Maximum total body dose to date for current calendar quarter as obtained by equation 6.6, mrem.

Doq = Maximum organ dose to date for current calendar quarter as obtained by equation 6.6, mrem.

d = Number of days in current calendar quarter at the end of the release.

td = 31, the number of days of concern.

0-ODCM-001 Revision 0024 Page 85 of 227 6.6 DOSE CALCULATIONS FOR REPORTING PURPOSES A complete dose analysis utilizing the total estimated liquid releases for each calendar quarter will be performed and reported as required in ODCM Administrative Control 5.2. Methodology for this analysis is that which is described in this section using the quarterly release values reported by the plant personnel. The releases are assumed, for this calculation, to be continuous over the 90 day period.

The average dilution factor, D, used for these calculations is:

1 D = (for receptors upstream (6.8a)

RF

  • 0.30 of Wheeler Dam) and 1

D = (for receptors downstream (6.8b)

RF of Wheeler Dam) where:

RF = the average actual riverflow for the location at which the dose is being determined, cfs.

0.30 = the fraction of the riverflow available for dilution in the near field, dimensionless.

6.6.1 Water Ingestion Water ingestion doses are calculated for each Public Water Supply (PWS) identified within a 50 mile radius downstream of BFN (Table 6.1). Water ingestion doses are calculated for the total body and each internal organ as described below:

Dj = 106 (9.8E-09) AWij Qi D exp(-8.64E+04 i td) (6.9) i where:

106 = conversion factor, µCi/Ci.

9.8E-09 = conversion factor, cfs per ml/h.

AWij = Dose factor for water ingestion for nuclide i, age group j, mrem/h per µCi/ml, as calculated in Section 6.7.1.

Qi = Quantity of nuclide i released during the quarter, Ci.

D = dilution factor, as described above, cfs-1.

i = radiological decay constant of nuclide i, s-1 (Table 6.3).

td = decay time for water ingestion, equal to the travel time from the plant to the water supply plus one-half day (12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />) to account for the time of processing at the water supply (per Regulatory Guide 1.109), d.

8.64E+04 = conversion factor, s/d.

0-ODCM-001 Revision 0024 Page 86 of 227 6.6.2 Fish Ingestion Fish ingestion doses are calculated for each identified reach within a 50 mile radius downstream of BFN (Table 6.1). Individual fish ingestion doses are calculated for the total body and each internal organ as described below:

  • Dj = 106 (9.8E-09) AFij Qi D exp(-8.64E+04 i td) (6.10) i where:

106 = conversion factor, µCi/Ci.

9.8E-09 = conversion factor, cfs per ml/h.

AFij = Dose factor for fish ingestion for nuclide i, age group j, mrem/h per µCi/ml, as calculated in ODCM Section 6.7.2.

Qi = Quantity of nuclide i released during the quarter, Ci.

D = dilution factor, as described above, cfs-1.

i = radiological decay constant of nuclide i, s-1 (Table 6.3).

td = decay time for fish ingestion, equal to the travel time from the plant to the center of the reach plus one day to account for transit through the food chain and food preparation time (per Regulatory Guide 1.109), d.

8.64E+04 = conversion factor, s/d.

6.6.3 Shoreline Recreation Recreation doses are calculated for each identified reach within a 50 mile radius downstream of BFN (Table 6.1). It is assumed that the maximum exposed individual spends 500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> per year on the shoreline at a location immediately downstream from the diffusers. Individual recreation shoreline doses are calculated for the total body and skin as described below:

Dorg = 106 (9.8E-09) ARij Qi D exp(-8.64E+04 i td) (6.11) i where:

106 = conversion factor, µCi/Ci.

9.8E-09 = conversion factor, cfs per ml/h.

ARij = Dose factor for shoreline recreation for nuclide i, age group j, mrem/h per µCi/ml, as calculated in ODCM Section 6.7.3.

Qi = Quantity of nuclide i released during the quarter, Ci.

D = dilution factor, as described above, cfs-1.

i = radiological decay constant of nuclide i, s-1 (Table 6.3).

td = decay time for recreation, equal to the travel time from the plant to the center of the reach, d.

8.64E+04 = conversion factor, s/d.

0-ODCM-001 Revision 0024 Page 87 of 227 6.6.4 Total Maximum Individual Dose The total maximum individual total body dose is obtained by summing the following for each age group: the highest total body water ingestion dose from among all the public water supplies; the highest total body fish ingestion dose from among all the reaches; and the total body maximum shoreline recreation dose. The total maximum individual organ dose is obtained by summing the following for each organ and each age group: that organ's highest water ingestion dose from among all the public water supplies; that organ's highest fish ingestion dose from among all the reaches; and the total body maximum shoreline recreation dose. The total maximum individual skin dose is that skin dose calculated for the maximum shoreline dose.

0-ODCM-001 Revision 0024 Page 88 of 227 6.6.5 Population Doses For determining population doses to the 50-mile population around the plant, an average dose is calculated for each age group and each pathway and then multiplied by the population.

For water ingestion, the general equation used for calculating the population doses, POPWTR, in person-rem for a given PWS is:

5 4 POPWTRj = 10-3 POPm POPa ATMWa TWDOSamj (6.12) m=1 a=1 where:

POPWTRj = water ingestion population dose to organ j, person-rem.

POPa = fraction of population in each age group a (from NUREG CR-1004, Table 3.39).

= 0.665 for adult

= 0.168 for child

= 0.015 for infant

= 0.153 for teen POPm = population at PWS m. The 5 PWSs and their populations are listed in Table 6.1.

ATMWa = ratio of average to maximum water ingestion rates for each age group a. Maximum water ingestion rates are given in Table 6.3. Average water ingestion rates are obtained from R.G.

1.109 Table E-4). The ratios are:

= 0.5069 for adult

= 0.5098 for child

= 0.7879 for infant

= 0.5098 for teen TWDOSamj = total individual water ingestion dose to organ j at PWS m, to the age group a, as described in Section 6.6.1, mrem.

10-3 = conversion factor for rem/mrem.

For population doses resulting from fish ingestion the calculation assumes that all fish caught within a 50-mile radius downstream of BFN are consumed by local population. An additional 7-days decay is added due to distribution time of sport fish. The general equation for calculating population doses, POPF, in person-rem from fish ingestion of all fish caught within a 50-mile radius downstream is:

3 3 453.6 HVST APRr POPFj = 10-3 10-3 POPa TFDOSarj (6.13) r=1 a=1 FISHa POPa

0-ODCM-001 Revision 0024 Page 89 of 227 6.6.5 Population Doses (continued) where:

POPFj = total fish ingestion population dose to organ j, person-rem.

HVST = fish harvest for the Tennessee River, 8.32 lbs/acre/y.

APRr = size of reach r, acres (Table 6.1).

TFDOSarj = total fish ingestion dose to organ j for reach r, for the age group a, as described in Section 6.6.2, mrem. Calculated with td in that equation equal to travel time plus 8 days.

POPa = fraction of population in each age group a, as given above.

FISHa = amount of fish ingested by each age group a, kg/y per person.

The average fish ingestion rates (R.G. 1.109 Table E-4) are:

Adult = 6.9 Child = 2.2 Teen = 5.2 453.6 = conversion factor, g/lb.

10-3 = conversion factor, rem/mrem.

10-3 = conversion factor, kg/g.

0-ODCM-001 Revision 0024 Page 90 of 227 6.6.5 Population Doses (continued)

For shoreline recreation, the general equation used for calculating the population doses, POPR, in person-rem is:

3 1

POPRj = SHVISr HRSVISr TSHDOSrj (6.14) 103 r=1 where:

POPRj = total recreation population dose for all reaches to organ j, person-rem.

SHVISr = shoreline visits per year at each reach r, (Table 6.1).

HRSVISr = length of shoreline recreation visit at reach r, 5 h.

103 = conversion factor, mrem/rem.

TSHDOSrj = total shoreline dose rate for organ j, in reach r, mrem-quarter/h per quarter.

Qi exp(-itr) Kc M DFGit 1012 24 103 Dr

=

2.22E11 i where:

Qi = total activity released during the quarter, Ci.

i = decay constant for nuclide i, d-1.

tr = travel time from the plant to reach r, d.

Kc = transfer coefficient from water to sediment, L/kg-h, (Table 6.3).

M = mass density of sediment, kg/m2, (Table 6.3).

DFGit = dose conversion factor for standing on contaminated ground for nuclide i and organ t (total body and skin), mrem/h per pCi/m2.

1012 = conversion factor, pCi/Ci.

24 = conversion factor, h/d.

103 = conversion factor, ml/L.

Dr = dilution factor for reach r, cfs-1. Calculated as described in Equation 6.8.

2.22E11 = conversion factor, ml/quarter per cfs.

0-ODCM-001 Revision 0024 Page 91 of 227 6.7 LIQUID DOSE FACTOR EQUATIONS 6.7.1 Water Ingestion Dose Factors DFLiaj Uwa 106 103 AWij =

8760 where:

DFLiaj = ingestion dose conversion factor for nuclide i, age group a, organ j, mrem/pCi, (Table 6.4).

Uwa = water consumption rate for age group a, L/y, (Table 6.3).

106 = conversion factor, pCi/µCi.

103 = conversion factor, ml/L.

8760 = conversion factor, h/y.

6.7.2 Fish Ingestion Dose Factors DFLiaj Ufa Bi 106 103 AFij =

8760 where:

DFLiaj = ingestion dose conversion factor for nuclide i, age group a, organ j, mrem/pCi, (Table 6.4).

Ufa = fish consumption rate for age group a, kg/y, (Table 6.3).

Bi = bioaccumulation factor for nuclide i, pCi/kg per pCi/L, (Table 6.5).

106 = conversion factor, pCi/µCi.

103 = conversion factor, ml/L.

8760 = conversion factor, h/y.

6.7.3 Shoreline Recreation Dose Factors DFGij Kc M W 103 106 U ARij = [1-exp(-i tb1)]

8760

  • 3600 i where:

DFGij = dose conversion factor for standing on contaminated ground for nuclide i and organ j (total body and skin), mrem/h per pCi/m2, (Table 6.6).

Kc = transfer coefficient from water to shoreline sediment, L/kg-h, (Table 6.3).

M = mass density of sediment, kg/m2, (Table 6.3).

W = shoreline width factor, dimensionless, (Table 6.3).

10 3 = conversion factor, ml/L.

106 = conversion factor, pCi/µCi.

3600 = conversion factor, s/h.

i = decay constant for nuclide i, s-1, (Table 6.2).

tb1 = time shoreline is exposed to the concentration in the water, s, (Table 6.3).

U = usage factor, 500 h/y.

8760 = conversion factor, h/y.

0-ODCM-001 Revision 0024 Page 92 of 227 Table 6.1 RECEPTORS FOR LIQUID DOSE CALCULATIONS Tennessee River Reaches Within 50 Mile Radius Downstream of BFN Beginning Ending Size Recreation Name TRM* TRM (acres) visits/y Wheeler Lake 294.0 274.9 26076 1,408,600 below BFN Wilson Lake 274.9 259.4 15930 3,816,800 Pickwick Lake 259.4 206.7 15048 705,500 Public Water Supplies Within 50 Mile Radius Downstream of BFN Name TRM Population West Morgan - East Lawrence, AL 286.5 25,000 Florence, AL 259.8 36,000 Muscle Shoals, AL 259.6 10,740 Sheffield, AL 254.3 13,065 Cherokee, AL 239.3 3,400

  • TRM = Tennessee River Mile. Distances in this and other tables are consistent with memo L78 961104 800.

0-ODCM-001 Revision 0024 Page 93 of 227 Table 6.2 (1 of 3)

RADIONUCLIDE DECAY AND STABLE ELEMENT TRANSFER DATA Nuclide Half-Life Biv Fmi Fmi Ffi (minutes) (1/s) (cow) (goat) (beef)

H-3 6.46E+06 1.79E-09 4.80E+00 1.00E-02 1.70E-01 1.20E-02 C-14 3.01E+09 3.84E-12 5.50E+00 1.20E-02 1.00E-01 3.10E-02 Na-24 9.00E+02 1.28E-05 5.20E-02 4.00E-02 4.00E-02 3.00E-02 P-32 2.06E+04 5.61E-07 1.10E+00 2.50E-02 2.50E-01 4.60E-02 Cr-51 3.99E+04 2.90E-07 2.50E-04 2.20E-03 2.20E-03 2.40E-03 Mn-54 4.50E+05 2.57E-08 2.90E-02 2.50E-04 2.50E-04 8.00E-04 Mn-56 1.55E+02 7.45E-05 2.90E-02 2.50E-04 2.50E-04 8.00E-04 Fe-55 1.42E+06 8.13E-09 6.60E-04 1.20E-03 1.30E-04 1.20E-02 Fe-59 6.43E+04 1.80E-07 6.60E-04 1.20E-03 1.30E-04 1.20E-02 Co-57 3.90E+05 2.96E-08 9.40E-03 1.00E-03 1.00E-03 1.30E-02 Co-58 1.02E+05 1.13E-07 9.40E-03 1.00E-03 1.00E-03 1.30E-02 Co-60 2.77E+06 4.17E-09 9.40E-03 1.00E-03 1.00E-03 1.30E-02 Ni-63 5.27E+07 2.19E-10 1.90E-02 6.70E-03 6.70E-03 5.30E-02 Ni-65 1.51E+02 7.65E-05 1.90E-02 6.70E-03 6.70E-03 5.30E-02 Cu-64 7.62E+02 1.52E-05 1.20E-01 1.40E-02 1.30E-02 9.70E-04 Zn-65 3.52E+05 3.28E-08 4.00E-01 3.90E-02 3.90E-02 3.00E-02 Zn-69m 8.26E+02 1.40E-05 4.00E-01 3.90E-02 3.90E-02 3.00E-02 Zn-69 5.56E+01 2.08E-04 4.00E-01 3.90E-02 3.90E-02 3.00E-02 Br-82 2.12E+03 5.45E-06 7.60E-01 5.00E-02 5.00E-02 2.60E-02 Br-83 1.43E+02 8.08E-05 7.60E-01 5.00E-02 5.00E-02 2.60E-02 Br-84 3.18E+01 3.63E-04 7.60E-01 5.00E-02 5.00E-02 2.60E-02 Br-85 2.87E+00 4.02E-03 7.60E-01 5.00E-02 5.00E-02 2.60E-02 Rb-86 2.69E+04 4.29E-07 1.30E-01 3.00E-02 3.00E-02 3.10E-02 Rb-88 1.78E+01 6.49E-04 1.30E-01 3.00E-02 3.00E-02 3.10E-02 Rb-89 1.54E+01 7.50E-04 1.30E-01 3.00E-02 3.00E-02 3.10E-02 Sr-89 7.28E+04 1.59E-07 1.70E-02 1.40E-03 1.40E-02 6.00E-04 Sr-90 1.50E+07 7.70E-10 1.70E-02 1.40E-03 1.40E-02 6.00E-04 Sr-91 5.70E+02 2.03E-05 1.70E-02 1.40E-03 1.40E-02 6.00E-04 Sr-92 1.63E+02 7.09E-05 1.70E-02 1.40E-03 1.40E-02 6.00E-04 Y-90 3.85E+03 3.00E-06 2.60E-03 1.00E-05 1.00E-05 4.60E-03 Y-91m 4.97E+01 2.32E-04 2.60E-03 1.00E-05 1.00E-05 4.60E-03 Y-91 8.43E+04 1.37E-07 2.60E-03 1.00E-05 1.00E-05 4.60E-03 Y-92 2.12E+02 5.45E-05 2.60E-03 1.00E-05 1.00E-05 4.60E-03 Y-93 6.06E+02 1.91E-05 2.60E-03 1.00E-05 1.00E-05 4.60E-03 Zr-95 9.22E+04 1.25E-07 1.70E-04 5.00E-06 5.00E-06 3.40E-02 Zr-97 1.01E+03 1.14E-05 1.70E-04 5.00E-06 5.00E-06 3.40E-02 Nb-95 5.05E+04 2.29E-07 9.40E-03 2.50E-03 2.50E-03 2.80E-01 Nb-97 7.21E+01 1.60E-04 9.40E-03 2.50E-03 2.50E-03 2.80E-01 Mo-99 3.96E+03 2.92E-06 1.20E-01 7.50E-03 7.50E-03 1.10E-03 Tc-99m 3.61E+02 3.20E-05 2.50E-01 2.50E-02 2.50E-02 4.00E-01 Tc-101 1.42E+01 8.13E-04 2.50E-01 2.50E-02 2.50E-02 4.00E-01 Ru-103 5.67E+04 2.04E-07 5.00E-02 1.00E-06 1.00E-06 4.00E-01 Ru-105 2.66E+02 4.34E-05 5.00E-02 1.00E-06 1.00E-06 4.00E-01 Ru-106 5.30E+05 2.18E-08 5.00E-02 1.00E-06 1.00E-06 4.00E-01 Ag-110m 3.60E+05 3.21E-08 1.50E-01 5.00E-02 5.00E-02 1.70E-02

0-ODCM-001 Revision 0024 Page 94 of 227 Table 6.2 (2 of 3)

RADIONUCLIDE DECAY AND STABLE ELEMENT TRANSFER DATA Nuclide Half-Life Biv Fmi Fmi Ffi (minutes) (1/s) (cow) (goat) (beef)

Sb-124 8.67E+04 1.33E-07 N/A 1.50E-03 1.50E-03 N/A Sb-125 1.46E+06 7.91E-09 N/A 1.50E-03 1.50E-03 N/A Te-125m 8.35E+04 1.38E-07 1.30E+00 1.00E-03 1.00E-03 7.70E-02 Te-127m 1.57E+05 7.36E-08 1.30E+00 1.00E-03 1.00E-03 7.70E-02 Te-127 5.61E+02 2.06E-05 1.30E+00 1.00E-03 1.00E-03 7.70E-02 Te-129m 4.84E+04 2.39E-07 1.30E+00 1.00E-03 1.00E-03 7.70E-02 Te-129 6.96E+01 1.66E-04 1.30E+00 1.00E-03 1.00E-03 7.70E-02 Te-131m 1.80E+03 6.42E-06 1.30E+00 1.00E-03 1.00E-03 7.70E-02 Te-131 2.50E+01 4.62E-04 1.30E+00 1.00E-03 1.00E-03 7.70E-02 Te-132 4.69E+03 2.46E-06 1.30E+00 1.00E-03 1.00E-03 7.70E-02 I-130 7.42E+02 1.56E-05 2.00E-02 1.20E-02 4.30E-01 2.90E-03 I-131 1.16E+04 9.96E-07 2.00E-02 1.20E-02 4.30E-01 2.90E-03 I-132 1.38E+02 8.37E-05 2.00E-02 1.20E-02 4.30E-01 2.90E-03 I-133 1.25E+03 9.24E-06 2.00E-02 1.20E-02 4.30E-01 2.90E-03 I-134 5.26E+01 2.20E-04 2.00E-02 1.20E-02 4.30E-01 2.90E-03 I-135 3.97E+02 2.91E-05 2.00E-02 1.20E-02 4.30E-01 2.90E-03 Cs-134 1.08E+06 1.06E-08 1.00E-02 8.00E-03 3.00E-01 1.50E-02 Cs-136 1.90E+04 6.08E-07 1.00E-02 8.00E-03 3.00E-01 1.50E-02 Cs-137 1.59E+07 7.26E-10 1.00E-02 8.00E-03 3.00E-01 1.50E-02 Cs-138 3.22E+01 3.59E-04 1.00E-02 8.00E-03 3.00E-01 1.50E-02 Ba-139 8.31E+01 1.39E-04 5.00E-03 4.00E-04 4.00E-04 3.20E-03 Ba-140 1.84E+04 6.28E-07 5.00E-03 4.00E-04 4.00E-04 3.20E-03 Ba-141 1.83E+01 6.31E-04 5.00E-03 4.00E-04 4.00E-04 3.20E-03 Ba-142 1.07E+01 1.08E-03 5.00E-03 4.00E-04 4.00E-04 3.20E-03 La-140 2.41E+03 4.79E-06 2.50E-03 5.00E-06 5.00E-06 2.00E-04 La-142 9.54E+01 1.21E-04 2.50E-03 5.00E-06 5.00E-06 2.00E-04 Ce-141 4.68E+04 2.47E-07 2.50E-03 1.00E-04 1.00E-04 1.20E-03 Ce-143 1.98E+03 5.83E-06 2.50E-03 1.00E-04 1.00E-04 1.20E-03 Ce-144 4.09E+05 2.82E-08 2.50E-03 1.00E-04 1.00E-04 1.20E-03 Pr-143 1.95E+04 5.92E-07 2.50E-03 5.00E-06 5.00E-06 4.70E-03 Pr-144 1.73E+01 6.68E-04 2.50E-03 5.00E-06 5.00E-06 4.70E-03 Nd-147 1.58E+04 7.31E-07 2.40E-03 5.00E-06 5.00E-06 3.30E-03 W-187 1.43E+03 8.08E-06 1.80E-02 5.00E-04 5.00E-04 1.30E-03 Np-239 3.39E+03 3.41E-06 2.50E-03 5.00E-06 5.00E-06 2.00E-04 Ar-41 1.10E+02 1.05E-04 N/A N/A N/A N/A Kr-83m 1.10E+02 1.05E-04 N/A N/A N/A N/A Kr-85m 2.69E+02 4.29E-05 N/A N/A N/A N/A Kr-85 5.64E+06 2.05E-09 N/A N/A N/A N/A Kr-87 7.63E+01 1.51E-04 N/A N/A N/A N/A Kr-88 1.70E+02 6.79E-05 N/A N/A N/A N/A Kr-89 3.16E+00 3.66E-03 N/A N/A N/A N/A Kr-90 5.39E-01 2.14E-02 N/A N/A N/A N/A Xe-131m 1.70E+04 6.79E-07 N/A N/A N/A N/A Xe-133m 3.15E+03 3.67E-06 N/A N/A N/A N/A

0-ODCM-001 Revision 0024 Page 95 of 227 Table 6.2 (3 of 3)

RADIONUCLIDE DECAY AND STABLE ELEMENT TRANSFER DATA Nuclide Half-Life Biv Fmi Fmi Ffi (minutes) (1/s) (cow) (goat) (beef)

Xe-133 7.55E+03 1.53E-06 N/A N/A N/A N/A Xe-135m 1.54E+01 7.50E-04 N/A N/A N/A N/A Xe-135 5.47E+02 2.11E-05 N/A N/A N/A N/A Xe-137 3.83E+00 3.02E-03 N/A N/A N/A N/A Xe-138 1.41E+01 8.19E-04 N/A N/A N/A N/A

References:

Half lives for all nuclides: DOE-TIC-11026, "Radioactive Decay Data Tables - A Handbook of Decay Data for Application to Radiation Dosimetry and Radiological Assessment," D. C. Kocher, 1981.

Transfer factors for Sb- isotopes are from ORNL 4992, "Methodology for Calculating Radiation Doses from Radioactivity Released to the Environment," March 1976, Table 2-7.

Cow-milk transfer factors for Iodine, Strontium, and Cesium nuclides are from NUREG/CR-1004, Table 3.17.

Goat-milk transfer factors for Iodine nuclides are from NUREG/CR-1004, Table 3.17.

Beef transfer factors for Iron, Copper, Molybdenum, and Cesium nuclides are from NUREG/CR-1004, Table 3.18.

All other nuclides' transfer factors are from Regulatory Guide 1.109, Tables E-1 and E-2.

0-ODCM-001 Revision 0024 Page 96 of 227 Table 6.3 (1 of 2)

DOSE CALCULATION FACTORS Factor Value Units Reference BRa (infant) 1400 m3/y ICRP 23 BRa (child) 5500 m3/y ICRP 23 BRa (teen) 8000 m3/y ICRP 23 BRa (adult) 8100 m3/y ICRP 23 fg 1 TVA Assumption fL 1 R. G. 1.109 (Table E-15) fp 1 TVA Assumption fs 0 TVA Assumption H 9 g/m3 TVA Value Kc 0.072 L/kg-h R. G. 1.109 (Section 2.C.)

M 40 kg/m2 R. G. 1.109 (Section 2.C.)

P 240 kg/m2 R. G. 1.109 (Table E-15)

Qf (cow) 64 kg/d NUREG/CR-1004 (Sect. 3.4)

Qf (goat) 08 kg/d NUREG/CR-1004 (Sect. 3.4) r 0.47 NUREG/CR-1004 (Sect. 3.2) tb 4.73E+08 s R. G. 1.109 (Table E-15)

(15 y) tb1 4.73E+08 s R. G. 1.109 (Table E-15)

(15 y) tcb 7.78E+06 s SQN FSAR Section 11.3.9.1 (90 d) tcsf 1.56E+07 s SQN FSAR Section 11.3.9.1 (180 d) te 5.18E+06 s R. G. 1.109 (Table E-15)

(60 d) tep 2.59E+06 s R. G. 1.109 (Table E-15)

(30 d) tesf 7.78E+06 s R. G. 1.109 (Table E-15)

(90 d) tfm 8.64E+04 s SQN FSAR Section 11.3.9.1 (1 d) thc 8.64E+04 s NUREG/CR-1004, Table 3.40 (1 d) ts 1.12E+06 s NUREG/CR-1004, Table 3.40 (13 d) tsv 2.38E+07 s SQN FSAR Section 11.3.9.1 (275 d)

Um (infant) 0 kg/y R. G. 1.109 (Table E-5)

Um (child) 41 kg/y R. G. 1.109 (Table E-5)

Um (teen) 65 kg/y R. G. 1.109 (Table E-5)

Um (adult) 110 kg/y R. G. 1.109 (Table E-5)

0-ODCM-001 Revision 0024 Page 97 of 227 Table 6.3 (2 of 2)

DOSE CALCULATION FACTORS Factor Value Units Reference Up (infant) 330 L/y R. G. 1.109 (Table E-5)

Up (child) 330 L/y R. G. 1.109 (Table E-5)

Up (teen) 400 L/y R. G. 1.109 (Table E-5)

Up (adult) 310 L/y R. G. 1.109 (Table E-5)

Uf(infant) 0 kg/y R. G. 1.109 (Table E-5)

Uf(child) 6.9 kg/y R. G. 1.109 (Table E-5)

Uf(teen) 16 kg/y R. G. 1.109 (Table E-5)

Uf(adult) 21 kg/y R. G. 1.109 (Table E-5)

UFL (infant) 0 kg/y R. G. 1.109 (Table E-5)

UFL (child) 26 kg/y R. G. 1.109 (Table E-5)

UFL (teen) 42 kg/y R. G. 1.109 (Table E-5)

UFL (adult) 64 kg/y R. G. 1.109 (Table E-5)

US (infant) 0 kg/y R. G. 1.109 (Table E-5)

US (child) 520 kg/y R. G. 1.109 (Table E-5)

US (teen) 630 kg/y R. G. 1.109 (Table E-5)

US (adult) 520 kg/y R. G. 1.109 (Table E-5)

Uw(infant) 330 L/y R. G. 1.109 (Table E-5)

Uw(child) 510 L/y R. G. 1.109 (Table E-5)

Uw(teen) 510 L/y R. G. 1.109 (Table E-5)

Uw(adult) 730 L/y R. G. 1.109 (Table E-5)

W 0.3 none R. G. 1.109 (Table A-2)

Yf 1.85 kg/m2 NUREG/CR-1004 (Table 3.4)

Yp 1.18 kg/m2 NUREG/CR-1004 (Table 3.3)

Ys 0.64 kg/m2 NUREG/CR-1004 (Table 3.3)

Ysv 0.57 kg/m2 NUREG/CR-1004 (Table 3.4)

(value selected is for non-leafy vegetables) wr(iodines) 7.71E-07 s-1 NUREG/CR-1004 (Table 3.10)

(15.4 d half-life) w (particulates) 5.21E-07 s-1 NUREG/CR-1004 (Table 3.10)

(10.4 d half-life)

0-ODCM-001 Revision 0024 Page 98 of 227 Table 6.4 (1 of 12)

INGESTION DOSE FACTORS (mrem/pCi ingested)

ADULT Nuclide bone liver t body thyroid kidney lung gi-lli H-3 1.05E-07 1.05E-07 1.05E-07 1.05E-07 1.05E-07 1.05E-07 1.05E-07 C-14 2.84E-06 5.68E-07 5.68E-07 5.68E-07 5.68E-07 5.68E-07 5.68E-07 Na-24 1.70E-06 1.70E-06 1.70E-06 1.70E-06 1.70E-06 1.70E-06 1.70E-06 P-32 1.93E-04 1.20E-05 7.46E-06 0.00E+00 0.00E+00 0.00E+00 2.17E-05 Cr-51 0.00E+00 0.00E+00 2.66E-09 1.59E-09 5.86E-10 3.53E-09 6.69E-07 Mn-54 0.00E+00 4.57E-06 8.72E-07 0.00E+00 1.36E-06 0.00E+00 1.40E-05 Mn-56 0.00E+00 1.15E-07 2.04E-08 0.00E+00 1.46E-07 0.00E+00 3.67E-06 Fe-55 2.75E-06 1.90E-06 4.43E-07 0.00E+00 0.00E+00 1.06E-06 1.09E-06 Fe-59 4.34E-06 1.02E-05 3.91E-06 0.00E+00 0.00E+00 2.85E-06 3.40E-05 Co-57 0.00E+00 1.75E-07 2.91E-07 0.00E+00 0.00E+00 0.00E+00 4.44E-06 Co-58 0.00E+00 7.45E-07 1.67E-06 0.00E+00 0.00E+00 0.00E+00 1.51E-05 Co-60 0.00E+00 2.14E-06 4.72E-06 0.00E+00 0.00E+00 0.00E+00 4.02E-05 Ni-63 1.30E-04 9.01E-06 4.36E-06 0.00E+00 0.00E+00 0.00E+00 1.88E-06 Ni-65 5.28E-07 6.86E-08 3.13E-08 0.00E+00 0.00E+00 0.00E+00 1.74E-06 Cu-64 0.00E+00 8.33E-08 3.91E-08 0.00E+00 2.10E-07 0.00E+00 7.10E-06 Zn-65 4.84E-06 1.54E-05 6.96E-06 0.00E+00 1.03E-05 0.00E+00 9.70E-06 Zn-69 1.03E-08 1.97E-08 1.37E-09 0.00E+00 1.28E-08 0.00E+00 2.96E-09 Zn-69m 1.70E-07 4.08E-07 3.73E-08 0.00E+00 2.47E-07 0.00E+00 2.49E-05 Br-82 0.00E+00 0.00E+00 2.26E-06 0.00E+00 0.00E+00 0.00E+00 2.59E-06 Br-83 0.00E+00 0.00E+00 4.02E-08 0.00E+00 0.00E+00 0.00E+00 5.79E-08 Br-84 0.00E+00 0.00E+00 5.21E-08 0.00E+00 0.00E+00 0.00E+00 4.09E-13 Br-85 0.00E+00 0.00E+00 2.14E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Rb-86 0.00E+00 2.11E-05 9.83E-06 0.00E+00 0.00E+00 0.00E+00 4.16E-06 Rb-88 0.00E+00 6.05E-08 3.21E-08 0.00E+00 0.00E+00 0.00E+00 8.36E-19 Rb-89 0.00E+00 4.01E-08 2.82E-08 0.00E+00 0.00E+00 0.00E+00 2.33E-21 Sr-89 3.08E-04 0.00E+00 8.84E-06 0.00E+00 0.00E+00 0.00E+00 4.94E-05 Sr-90 7.58E-03 0.00E+00 1.86E-03 0.00E+00 0.00E+00 0.00E+00 2.19E-04 Sr-91 5.67E-06 0.00E+00 2.29E-07 0.00E+00 0.00E+00 0.00E+00 2.70E-05 Sr-92 2.15E-06 0.00E+00 9.30E-08 0.00E+00 0.00E+00 0.00E+00 4.26E-05 Y-90 9.62E-09 0.00E+00 2.58E-10 0.00E+00 0.00E+00 0.00E+00 1.02E-04 Y-91m 9.09E-11 0.00E+00 3.52E-12 0.00E+00 0.00E+00 0.00E+00 2.67E-10 Y-91 1.41E-07 0.00E+00 3.77E-09 0.00E+00 0.00E+00 0.00E+00 7.76E-05 Y-92 8.45E-10 0.00E+00 2.47E-11 0.00E+00 0.00E+00 0.00E+00 1.48E-05 Y-93 2.68E-09 0.00E+00 7.40E-11 0.00E+00 0.00E+00 0.00E+00 8.50E-05 Zr-95 3.04E-08 9.75E-09 6.60E-09 0.00E+00 1.53E-08 0.00E+00 3.09E-05 Zr-97 1.68E-09 3.39E-10 1.55E-10 0.00E+00 5.12E-10 0.00E+00 1.05E-04 Nb-95 6.22E-09 3.46E-09 1.86E-09 0.00E+00 3.42E-09 0.00E+00 2.10E-05 Nb-97 5.22E-11 1.32E-11 4.82E-12 0.00E+00 1.54E-11 0.00E+00 4.87E-08 Mo-99 0.00E+00 4.31E-06 8.20E-07 0.00E+00 9.76E-06 0.00E+00 9.99E-06

0-ODCM-001 Revision 0024 Page 99 of 227 Table 6.4 (2 of 12)

INGESTION DOSE FACTORS (mrem/pCi ingested)

ADULT Nuclide bone liver t body thyroid kidney lung gi-lli Tc-99m 2.47E-10 6.98E-10 8.89E-09 0.00E+00 1.06E-08 3.42E-10 4.13E-07 Tc-101 2.54E-10 3.66E-10 3.59E-09 0.00E+00 6.59E-09 1.87E-10 1.10E-21 Ru-103 1.85E-07 0.00E+00 7.97E-08 0.00E+00 7.06E-07 0.00E+00 2.16E-05 Ru-105 1.54E-08 0.00E+00 6.08E-09 0.00E+00 1.99E-07 0.00E+00 9.42E-06 Ru-106 2.75E-06 0.00E+00 3.48E-07 0.00E+00 5.31E-06 0.00E+00 1.78E-04 Ag-110m 1.60E-07 1.48E-07 8.79E-08 0.00E+00 2.91E-07 0.00E+00 6.04E-05 Sb-124 2.80E-06 5.29E-08 1.11E-06 6.79E-09 0.00E-00 2.18E-06 7.95E-05 Sb-125 1.79E-06 2.00E-08 4.26E-07 1.82E-09 0.00E-00 1.38E-06 1.97E-05 Te-125m 2.68E-06 9.71E-07 3.59E-07 8.06E-07 1.09E-05 0.00E+00 1.07E-05 Te-127m 6.77E-06 2.42E-06 8.25E-07 1.73E-06 2.75E-05 0.00E+00 2.27E-05 Te-127 1.10E-07 3.95E-08 2.38E-08 8.15E-08 4.48E-07 0.00E+00 8.68E-06 Te-129m 1.15E-05 4.29E-06 1.82E-06 3.95E-06 4.80E-05 0.00E+00 5.79E-05 Te-129 3.14E-08 1.18E-08 7.65E-09 2.41E-08 1.32E-07 0.00E+00 2.37E-08 Te-131m 1.73E-06 8.46E-07 7.05E-07 1.34E-06 8.57E-06 0.00E+00 8.40E-05 Te-131 1.97E-08 8.23E-09 6.22E-09 1.62E-08 8.63E-08 0.00E+00 2.79E-09 Te-132 2.52E-06 1.63E-06 1.53E-06 1.80E-06 1.57E-05 0.00E+00 7.71E-05 I-130 7.56E-07 2.23E-06 8.80E-07 1.89E-04 3.48E-06 0.00E+00 1.92E-06 I-131 4.16E-06 5.95E-06 3.41E-06 1.95E-03 1.02E-05 0.00E+00 1.57E-06 I-132 2.03E-07 5.43E-07 1.90E-07 1.90E-05 8.65E-07 0.00E+00 1.02E-07 I-133 1.42E-06 2.47E-06 7.53E-07 3.63E-04 4.31E-06 0.00E+00 2.22E-06 I-134 1.06E-07 2.88E-07 1.03E-07 4.99E-06 4.58E-07 0.00E+00 2.51E-10 I-135 4.43E-07 1.16E-06 4.28E-07 7.65E-05 1.86E-06 0.00E+00 1.31E-06 Cs-134 6.22E-05 1.48E-04 1.21E-04 0.00E+00 4.79E-05 1.59E-05 2.59E-06 Cs-136 6.51E-06 2.57E-05 1.85E-05 0.00E+00 1.43E-05 1.96E-06 2.92E-06 Cs-137 7.97E-05 1.09E-04 7.14E-05 0.00E+00 3.70E-05 1.23E-05 2.11E-06 Cs-138 5.52E-08 1.09E-07 5.40E-08 0.00E+00 8.01E-08 7.91E-09 4.65E-13 Ba-139 9.70E-08 6.91E-11 2.84E-09 0.00E+00 6.46E-11 3.92E-11 1.72E-07 Ba-140 2.03E-05 2.55E-08 1.33E-06 0.00E+00 8.67E-09 1.46E-08 4.18E-05 Ba-141 4.71E-08 3.56E-11 1.59E-09 0.00E+00 3.31E-11 2.02E-11 2.22E-17 Ba-142 2.13E-08 2.19E-11 1.34E-09 0.00E+00 1.85E-11 1.24E-11 3.00E-26 La-140 2.50E-09 1.26E-09 3.33E-10 0.00E+00 0.00E+00 0.00E+00 9.25E-05 La-142 1.28E-10 5.82E-11 1.45E-11 0.00E+00 0.00E+00 0.00E+00 4.25E-07

0-ODCM-001 Revision 0024 Page 100 of 227 Table 6.4 (3 of 12)

INGESTION DOSE FACTORS (mrem/pCi ingested)

ADULT Nuclide bone liver t body thyroid kidney lung gi-lli Ce-141 9.36E-09 6.33E-09 7.18E-10 0.00E+00 2.94E-09 0.00E+00 2.42E-05 Ce-143 1.65E-09 1.22E-06 1.35E-10 0.00E+00 5.37E-10 0.00E+00 4.56E-05 Ce-144 4.88E-07 2.04E-07 2.62E-08 0.00E+00 1.21E-07 0.00E+00 1.65E-04 Pr-143 9.20E-09 3.69E-09 4.56E-10 0.00E+00 2.13E-09 0.00E+00 4.03E-05 Pr-144 3.01E-11 1.25E-11 1.53E-12 0.00E+00 7.05E-12 0.00E+00 4.33E-18 Nd-147 6.29E-09 7.27E-09 4.35E-10 0.00E+00 4.25E-09 0.00E+00 3.49E-05 W-187 1.03E-07 8.61E-08 3.01E-08 0.00E+00 0.00E+00 0.00E+00 2.82E-05 Np-239 1.19E-09 1.17E-10 6.45E-11 0.00E+00 3.65E-10 0.00E+00 2.40E-05

References:

Dose Factors for Co-57, Zn-69m, Br-82, Nb-97, Sb-124 and Sb-125 are from NUREG-0172 Age Specific Radiation Dose Commitment Factors for a One Year Chronic Intake,, November, 1977, Table 4.

All others:

Regulatory Guide 1.109, Table E-11.

NOTE: The tritium dose factor for bone is assumed to be equal to the total body dose factor

0-ODCM-001 Revision 0024 Page 101 of 227 Table 6.4 (4 of 12)

INGESTION DOSE FACTORS (mrem/pCi ingested)

TEEN Nuclide bone liver t body thyroid kidney lung gi-lli H-3 1.06E-07 1.06E-07 1.06E-07 1.06E-07 1.06E-07 1.06E-07 1.06E-07 C-14 4.06E-06 8.12E-07 8.12E-07 8.12E-07 8.12E-07 8.12E-07 8.12E-07 Na-24 2.30E-06 2.30E-06 2.30E-06 2.30E-06 2.30E-06 2.30E-06 2.30E-06 P-32 2.76E-04 1.71E-05 1.07E-05 0.00E+00 0.00E+00 0.00E+00 2.32E-05 Cr-51 0.00E+00 0.00E+00 3.60E-09 2.00E-09 7.89E-10 5.14E-09 6.05E-07 Mn-54 0.00E+00 5.90E-06 1.17E-06 0.00E+00 1.76E-06 0.00E+00 1.21E-05 Mn-56 0.00E+00 1.58E-07 2.81E-08 0.00E+00 2.00E-07 0.00E+00 1.04E-05 Fe-55 3.78E-06 2.68E-06 6.25E-07 0.00E+00 0.00E+00 1.70E-06 1.16E-06 Fe-59 5.87E-06 1.37E-05 5.29E-06 0.00E+00 0.00E+00 4.32E-06 3.24E-05 Co-57 0.00E+00 2.38E-07 3.99E-07 0.00E+00 0.00E+00 0.00E+00 4.44E-06 Co-58 0.00E+00 9.72E-07 2.24E-06 0.00E+00 0.00E+00 0.00E+00 1.34E-05 Co-60 0.00E+00 2.81E-06 6.33E-06 0.00E+00 0.00E+00 0.00E+00 3.66E-05 Ni-63 1.77E-04 1.25E-05 6.00E-06 0.00E+00 0.00E+00 0.00E+00 1.99E-06 Ni-65 7.49E-07 9.57E-08 4.36E-08 0.00E+00 0.00E+00 0.00E+00 5.19E-06 Cu-64 0.00E+00 1.15E-07 5.41E-08 0.00E+00 2.91E-07 0.00E+00 8.92E-06 Zn-65 5.76E-06 2.00E-05 9.33E-06 0.00E+00 1.28E-05 0.00E+00 8.47E-06 Zn-69 1.47E-08 2.80E-08 1.96E-09 0.00E+00 1.83E-08 0.00E+00 5.16E-08 Zn-69m 2.40E-07 5.66E-07 5.19E-08 0.00E+00 3.44E-07 0.00E+00 3.11E-05 Br-82 0.00E+00 0.00E+00 3.04E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-83 0.00E+00 0.00E+00 5.74E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-84 0.00E+00 0.00E+00 7.22E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-85 0.00E+00 0.00E+00 3.05E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Rb-86 0.00E+00 2.98E-05 1.40E-05 0.00E+00 0.00E+00 0.00E+00 4.41E-06 Rb-88 0.00E+00 8.52E-08 4.54E-08 0.00E+00 0.00E+00 0.00E+00 7.30E-15 Rb-89 0.00E+00 5.50E-08 3.89E-08 0.00E+00 0.00E+00 0.00E+00 8.43E-17 Sr-89 4.40E-04 0.00E+00 1.26E-05 0.00E+00 0.00E+00 0.00E+00 5.24E-05 Sr-90 8.30E-03 0.00E+00 2.05E-03 0.00E+00 0.00E+00 0.00E+00 2.33E-04 Sr-91 8.07E-06 0.00E+00 3.21E-07 0.00E+00 0.00E+00 0.00E+00 3.66E-05 Sr-92 3.05E-06 0.00E+00 1.30E-07 0.00E+00 0.00E+00 0.00E+00 7.77E-05 Y-90 1.37E-08 0.00E+00 3.69E-10 0.00E+00 0.00E+00 0.00E+00 1.13E-04 Y-91m 1.29E-10 0.00E+00 4.93E-12 0.00E+00 0.00E+00 0.00E+00 6.09E-09 Y-91 2.01E-07 0.00E+00 5.39E-09 0.00E+00 0.00E+00 0.00E+00 8.24E-05 Y-92 1.21E-09 0.00E+00 3.50E-11 0.00E+00 0.00E+00 0.00E+00 3.32E-05 Y-93 3.83E-09 0.00E+00 1.05E-10 0.00E+00 0.00E+00 0.00E+00 1.17E-04

0-ODCM-001 Revision 0024 Page 102 of 227 Table 6.4 (5 of 12)

INGESTION DOSE FACTORS (mrem/pCi ingested)

TEEN Nuclide bone liver t body thyroid kidney lung gi-lli Zr-95 4.12E-08 1.30E-08 8.94E-09 0.00E+00 1.91E-08 0.00E+00 3.00E-05 Zr-97 2.37E-09 4.69E-10 2.16E-10 0.00E+00 7.11E-10 0.00E+00 1.27E-04 Nb-95 8.22E-09 4.56E-09 2.51E-09 0.00E+00 4.42E-09 0.00E+00 1.95E-05 Nb-97 7.37E-11 1.83E-11 6.68E-12 0.00E+00 2.14E-11 0.00E+00 4.37E-07 Mo-99 0.00E+00 6.03E-06 1.15E-06 0.00E+00 1.38E-05 0.00E+00 1.08E-05 Tc-99m 3.32E-10 9.26E-10 1.20E-08 0.00E+00 1.38E-08 5.14E-10 6.08E-07 Tc-101 3.60E-10 5.12E-10 5.03E-09 0.00E+00 9.26E-09 3.12E-10 8.75E-17 Ru-103 2.55E-07 0.00E+00 1.09E-07 0.00E+00 8.99E-07 0.00E+00 2.13E-05 Ru-105 2.18E-08 0.00E+00 8.46E-09 0.00E+00 2.75E-07 0.00E+00 1.76E-05 Ru-106 3.92E-06 0.00E+00 4.94E-07 0.00E+00 7.56E-06 0.00E+00 1.88E-04 Ag-110m 2.05E-07 1.94E-07 1.18E-07 0.00E+00 3.70E-07 0.00E+00 5.45E-05 Sb-124 3.87E-06 7.13E-08 1.51E-06 8.78E-09 0.00E-00 3.38E-06 7.80E-05 Sb-125 2.48E-06 2.71E-08 5.80E-07 2.37E-09 0.00E+00 2.18E-06 1.93E-05 Te-125m 3.83E-06 1.38E-06 5.12E-07 1.07E-06 0.00E+00 0.00E+00 1.13E-05 Te-127m 9.67E-06 3.43E-06 1.15E-06 2.30E-06 3.92E-05 0.00E+00 2.41E-05 Te-127 1.58E-07 5.60E-08 3.40E-08 1.09E-07 6.40E-07 0.00E+00 1.22E-05 Te-129m 1.63E-05 6.05E-06 2.58E-06 5.26E-06 6.82E-05 0.00E+00 6.12E-05 Te-129 4.48E-08 1.67E-08 1.09E-08 3.20E-08 1.88E-07 0.00E+00 2.45E-07 Te-131m 2.44E-06 1.17E-06 9.76E-07 1.76E-06 1.22E-05 0.00E+00 9.39E-05 Te-131 2.79E-08 1.15E-08 8.72E-09 2.15E-08 1.22E-07 0.00E+00 2.29E-09 Te-132 3.49E-06 2.21E-06 2.08E-06 2.33E-06 2.12E-05 0.00E+00 7.00E-05 I-130 1.03E-06 2.98E-06 1.19E-06 2.43E-04 4.59E-06 0.00E+00 2.29E-06 I-131 5.85E-06 8.19E-06 4.40E-06 2.39E-03 1.41E-05 0.00E+00 1.62E-06 I-132 2.79E-07 7.30E-07 2.62E-07 2.46E-05 1.15E-06 0.00E+00 3.18E-07 I-133 2.01E-06 3.41E-06 1.04E-06 4.76E-04 5.98E-06 0.00E+00 2.58E-06 I-134 1.46E-07 3.87E-07 1.39E-07 6.45E-06 6.10E-07 0.00E+00 5.10E-09 I-135 6.10E-07 1.57E-06 5.82E-07 1.01E-04 2.48E-06 0.00E+00 1.74E-06 Cs-134 8.37E-05 1.97E-04 9.14E-05 0.00E+00 6.26E-05 2.39E-05 2.45E-06 Cs-136 8.59E-06 3.38E-05 2.27E-05 0.00E+00 1.84E-05 2.90E-06 2.72E-06 Cs-137 1.12E-04 1.49E-04 5.19E-05 0.00E+00 5.07E-05 1.97E-05 2.12E-06 Cs-138 7.76E-08 1.49E-07 7.45E-08 0.00E+00 1.10E-07 1.28E-08 6.76E-11

0-ODCM-001 Revision 0024 Page 103 of 227 Table 6.4 (6 of 12)

INGESTION DOSE FACTORS (mrem/pCi ingested)

TEEN Nuclide bone liver t body thyroid kidney lung gi-lli Ba-139 1.39E-07 9.78E-11 4.05E-09 0.00E+00 9.22E-11 6.74E-11 1.24E-06 Ba-140 2.84E-05 3.48E-08 1.83E-06 0.00E+00 1.18E-08 2.34E-08 4.38E-05 Ba-141 6.71E-08 5.01E-11 2.24E-09 0.00E+00 4.65E-11 3.43E-11 1.43E-13 Ba-142 2.99E-08 2.99E-11 1.84E-09 0.00E+00 2.53E-11 1.99E-11 9.18E-20 La-140 3.48E-09 1.71E-09 4.55E-10 0.00E+00 0.00E+00 0.00E+00 9.82E-05 La-142 1.79E-10 7.95E-11 1.98E-11 0.00E+00 0.00E+00 0.00E+00 2.42E-06 Ce-141 1.33E-08 8.88E-09 1.02E-09 0.00E+00 4.18E-09 0.00E+00 2.54E-05 Ce-143 2.35E-09 1.71E-06 1.91E-10 0.00E+00 7.67E-10 0.00E+00 5.14E-05 Ce-144 6.96E-07 2.88E-07 3.74E-08 0.00E+00 1.72E-07 0.00E+00 1.75E-04 Pr-143 1.31E-08 5.23E-09 6.52E-10 0.00E+00 3.04E-09 0.00E+00 4.31E-05 Pr-144 4.30E-11 1.76E-11 2.18E-12 0.00E+00 1.01E-11 0.00E+00 4.74E-14 Nd-147 9.38E-09 1.02E-08 6.11E-10 0.00E+00 5.99E-09 0.00E+00 3.68E-05 W-187 1.46E-07 1.19E-07 4.17E-08 0.00E+00 0.00E+00 0.00E+00 3.22E-05 Np-239 1.76E-09 1.66E-10 9.22E-11 0.00E+00 5.21E-10 0.00E+00 2.67E-05

References:

Dose Factors for Co-57, Zn-69m, Br-82, Nb-97, Sb-124 and Sb-125 are from NUREG-0172 Age Specific Radiation Dose Commitment Factors for a One Year Chronic Intake,, November, 1977, Table 3.

All others:

Regulatory Guide 1.109, Table E-12.

NOTE: The tritium dose factor for bone is assumed to be equal to the total body dose factor.

0-ODCM-001 Revision 0024 Page 104 of 227 Table 6.4 (7 of 12)

INGESTION DOSE FACTORS (mrem/pCi ingested)

CHILD Nuclide bone liver t body thyroid kidney lung gi-lli H-3 2.03E-07 2.03E-07 2.03E-07 2.03E-07 2.03E-07 2.03E-07 2.03E-07 C-14 1.21E-05 2.42E-06 2.42E-06 2.42E-06 2.42E-06 2.42E-06 2.42E-06 Na-24 5.80E-06 5.80E-06 5.80E-06 5.80E-06 5.80E-06 5.80E-06 5.80E-06 P-32 8.25E-04 3.86E-05 3.18E-05 0.00E+00 0.00E+00 0.00E+00 2.28E-05 Cr-51 0.00E+00 0.00E+00 8.90E-09 4.94E-09 1.35E-09 9.02E-09 4.72E-07 Mn-54 0.00E+00 1.07E-05 2.85E-06 0.00E+00 3.00E-06 0.00E+00 8.98E-06 Mn-56 0.00E+00 3.34E-07 7.54E-08 0.00E+00 4.04E-07 0.00E+00 4.84E-05 Fe-55 1.15E-05 6.10E-06 1.89E-06 0.00E+00 0.00E+00 3.45E-06 1.13E-06 Fe-59 1.65E-05 2.67E-05 1.33E-05 0.00E+00 0.00E+00 7.74E-06 2.78E-05 Co-57 0.00E+00 4.93E-07 9.98E-07 0.00E+00 0.00E+00 0.00E+00 4.04E-06 Co-58 0.00E+00 1.80E-06 5.51E-06 0.00E+00 0.00E+00 0.00E+00 1.05E-05 Co-60 0.00E+00 5.29E-06 1.56E-05 0.00E+00 0.00E+00 0.00E+00 2.93E-05 Ni-63 5.38E-04 2.88E-05 1.83E-05 0.00E+00 0.00E+00 0.00E+00 1.94E-06 Ni-65 2.22E-06 2.09E-07 1.22E-07 0.00E+00 0.00E+00 0.00E+00 2.56E-05 Cu-64 0.00E+00 2.45E-07 1.48E-07 0.00E+00 5.92E-07 0.00E+00 1.15E-05 Zn-65 1.37E-05 3.65E-05 2.27E-05 0.00E+00 2.30E-05 0.00E+00 6.41E-06 Zn-69 4.38E-08 6.33E-08 5.85E-09 0.00E+00 3.84E-08 0.00E+00 3.99E-06 Zn-69m 7.10E-07 1.21E-06 1.43E-07 0.00E+00 7.03E-07 0.00E+00 3.94E-05 Br-82 0.00E+00 0.00E+00 7.55E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-83 0.00E+00 0.00E+00 1.71E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-84 0.00E+00 0.00E+00 1.98E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-85 0.00E+00 0.00E+00 9.12E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Rb-86 0.00E+00 6.70E-05 4.12E-05 0.00E+00 0.00E+00 0.00E+00 4.31E-06 Rb-88 0.00E+00 1.90E-07 1.32E-07 0.00E+00 0.00E+00 0.00E+00 9.32E-09 Rb-89 0.00E+00 1.17E-07 1.04E-07 0.00E+00 0.00E+00 0.00E+00 1.02E-09 Sr-89 1.32E-03 0.00E+00 3.77E-05 0.00E+00 0.00E+00 0.00E+00 5.11E-05 Sr-90 1.70E-02 0.00E+00 4.31E-03 0.00E+00 0.00E+00 0.00E+00 2.29E-04 Sr-91 2.40E-05 0.00E+00 9.06E-07 0.00E+00 0.00E+00 0.00E+00 5.30E-05 Sr-92 9.03E-06 0.00E+00 3.62E-07 0.00E+00 0.00E+00 0.00E+00 1.71E-04 Y-90 4.11E-08 0.00E+00 1.10E-09 0.00E+00 0.00E+00 0.00E+00 1.17E-04 Y-91m 3.82E-10 0.00E+00 1.39E-11 0.00E+00 0.00E+00 0.00E+00 7.48E-07 Y-91 6.02E-07 0.00E+00 1.61E-08 0.00E+00 0.00E+00 0.00E+00 8.02E-05 Y-92 3.60E-09 0.00E+00 1.03E-10 0.00E+00 0.00E+00 0.00E+00 1.04E-04 Y-93 1.14E-08 0.00E+00 3.13E-10 0.00E+00 0.00E+00 0.00E+00 1.70E-04 Zr-95 1.16E-07 2.55E-08 2.27E-08 0.00E+00 3.65E-08 0.00E+00 2.66E-05 Zr-97 6.99E-09 1.01E-09 5.96E-10 0.00E+00 1.45E-09 0.00E+00 1.53E-04

0-ODCM-001 Revision 0024 Page 105 of 227 Table 6.4 (8 of 12)

INGESTION DOSE FACTORS (mrem/pCi ingested)

CHILD Nuclide bone liver t body thyroid kidney lung gi-lli Nb-95 2.25E-08 8.76E-09 6.26E-09 0.00E+00 8.23E-09 0.00E+00 1.62E-05 Nb-97 2.17E-10 3.92E-11 1.83E-11 0.00E+00 4.35E-11 0.00E+00 1.21E-05 Mo-99 0.00E+00 1.33E-05 3.29E-06 0.00E+00 2.84E-05 0.00E+00 1.10E-05 Tc-99m 9.23E-10 1.81E-09 3.00E-08 0.00E+00 2.63E-08 9.19E-10 1.03E-06 Tc-101 1.07E-09 1.12E-09 1.42E-08 0.00E+00 1.91E-08 5.92E-10 3.56E-09 Ru-103 7.31E-07 0.00E+00 2.81E-07 0.00E+00 1.84E-06 0.00E+00 1.89E-05 Ru-105 6.45E-08 0.00E+00 2.34E-08 0.00E+00 5.67E-07 0.00E+00 4.21E-05 Ru-106 1.17E-05 0.00E+00 1.46E-06 0.00E+00 1.58E-05 0.00E+00 1.82E-04 Ag-110m 5.39E-07 3.64E-07 2.91E-07 0.00E+00 6.78E-07 0.00E+00 4.33E-05 Sb-124 1.11E-05 1.44E-07 3.89E-06 2.45E-08 0.00E+00 6.16E-06 6.94E-05 Sb-125 7.16E-06 5.52E-08 1.50E-06 6.63E-09 0.00E+00 3.99E-06 1.71E-05 Te-125m 1.14E-05 3.09E-06 1.52E-06 3.20E-06 0.00E+00 0.00E+00 1.10E-05 Te-127m 2.89E-05 7.78E-06 3.43E-06 6.91E-06 8.24E-05 0.00E+00 2.34E-05 Te-127 4.71E-07 1.27E-07 1.01E-07 3.26E-07 1.34E-06 0.00E+00 1.84E-05 Te-129m 4.87E-05 1.36E-05 7.56E-06 1.57E-05 1.43E-04 0.00E+00 5.94E-05 Te-129 1.34E-07 3.74E-08 3.18E-08 9.56E-08 3.92E-07 0.00E+00 8.34E-06 Te-131m 7.20E-06 2.49E-06 2.65E-06 5.12E-06 2.41E-05 0.00E+00 1.01E-04 Te-131 8.30E-08 2.53E-08 2.47E-08 6.35E-08 2.51E-07 0.00E+00 4.36E-07 Te-132 1.01E-05 4.47E-06 5.40E-06 6.51E-06 4.15E-05 0.00E+00 4.50E-05 I-130 2.92E-06 5.90E-06 3.04E-06 6.50E-04 8.82E-06 0.00E+00 2.76E-06 I-131 1.72E-05 1.73E-05 9.83E-06 5.72E-03 2.84E-05 0.00E+00 1.54E-06 I-132 8.00E-07 1.47E-06 6.76E-07 6.82E-05 2.25E-06 0.00E+00 1.73E-06 I-133 5.92E-06 7.32E-06 2.77E-06 1.36E-03 1.22E-05 0.00E+00 2.95E-06 I-134 4.19E-07 7.78E-07 3.58E-07 1.79E-05 1.19E-06 0.00E+00 5.16E-07 I-135 1.75E-06 3.15E-06 1.49E-06 2.79E-04 4.83E-06 0.00E+00 2.40E-06 Cs-134 2.34E-04 3.84E-04 8.10E-05 0.00E+00 1.19E-04 4.27E-05 2.07E-06 Cs-136 2.35E-05 6.46E-05 4.18E-05 0.00E+00 3.44E-05 5.13E-06 2.27E-06 Cs-137 3.27E-04 3.13E-04 4.62E-05 0.00E+00 1.02E-04 3.67E-05 1.96E-06 Cs-138 2.28E-07 3.17E-07 2.01E-07 0.00E+00 2.23E-07 2.40E-08 1.46E-07

0-ODCM-001 Revision 0024 Page 106 of 227 Table 6.4 (9 of 12)

INGESTION DOSE FACTORS (mrem/pCi ingested)

CHILD Nuclide bone liver t body thyroid kidney lung gi-lli Ba-139 4.14E-07 2.21E-10 1.20E-08 0.00E+00 1.93E-10 1.30E-10 2.39E-05 Ba-140 8.31E-05 7.28E-08 4.85E-06 0.00E+00 2.37E-08 4.34E-08 4.21E-05 Ba-141 2.00E-07 1.12E-10 6.51E-09 0.00E+00 9.69E-11 6.58E-10 1.14E-07 Ba-142 8.74E-08 6.29E-11 4.88E-09 0.00E+00 5.09E-11 3.70E-11 1.14E-09 La-140 1.01E-08 3.53E-09 1.19E-09 0.00E+00 0.00E+00 0.00E+00 9.84E-05 La-142 5.24E-10 1.67E-10 5.23E-11 0.00E+00 0.00E+00 0.00E+00 3.31E-05 Ce-141 3.97E-08 1.98E-08 2.94E-09 0.00E+00 8.68E-09 0.00E+00 2.47E-05 Ce-143 6.99E-09 3.79E-06 5.49E-10 0.00E+00 1.59E-09 0.00E+00 5.55E-05 Ce-144 2.08E-06 6.52E-07 1.11E-07 0.00E+00 3.61E-07 0.00E+00 1.70E-04 Pr-143 3.93E-08 1.18E-08 1.95E-09 0.00E+00 6.39E-09 0.00E+00 4.24E-05 Pr-144 1.29E-10 3.99E-11 6.49E-12 0.00E+00 2.11E-11 0.00E+00 8.59E-08 Nd-147 2.79E-08 2.26E-08 1.75E-09 0.00E+00 1.24E-08 0.00E+00 3.58E-05 W-187 4.29E-07 2.54E-07 1.14E-07 0.00E+00 0.00E+00 0.00E+00 3.57E-05 Np-239 5.25E-09 3.77E-10 2.65E-10 0.00E+00 1.09E-09 0.00E+00 2.79E-05

References:

Dose Factors for Co-57, Zn-69m, Br-82, Nb-97, Sb-124 and Sb-125 are from NUREG-0172 Age Specific Radiation Dose Commitment Factors for a One Year Chronic Intake,, November, 1977, Table 2.

All others:

Regulatory Guide 1.109, Table E-13.

NOTE: The tritium dose factor for bone is assumed to be equal to the total body dose factor.

0-ODCM-001 Revision 0024 Page 107 of 227 Table 6.4 (10 of 12)

INGESTION DOSE FACTORS (mrem/pCi ingested)

INFANT Nuclide bone liver t body thyroid kidney lung gi-lli H-3 3.08E-07 3.08E-07 3.08E-07 3.08E-07 3.08E-07 3.08E-07 3.08E-07 C-14 2.37E-05 5.06E-06 5.06E-06 5.06E-06 5.06E-06 5.06E-06 5.06E-06 Na-24 1.01E-05 1.01E-05 1.01E-05 1.01E-05 1.01E-05 1.01E-05 1.01E-05 P-32 1.70E-03 1.00E-04 6.59E-05 0.00E+00 0.00E+00 0.00E+00 2.30E-05 Cr-51 0.00E+00 0.00E+00 1.41E-08 9.20E-09 2.01E-09 1.79E-08 4.11E-07 Mn-54 0.00E+00 1.99E-05 4.51E-06 0.00E+00 4.41E-06 0.00E+00 7.31E-06 Mn-56 0.00E+00 8.18E-07 1.41E-07 0.00E+00 7.03E-07 0.00E+00 7.43E-05 Fe-55 1.39E-05 8.98E-06 2.40E-06 0.00E+00 0.00E+00 4.39E-06 1.14E-06 Fe-59 3.08E-05 5.38E-05 2.12E-05 0.00E+00 0.00E+00 1.59E-05 2.57E-05 Co-57 0.00E+00 1.15E-06 1.87E-06 0.00E+00 0.00E+00 0.00E+00 3.92E-06 Co-58 0.00E+00 3.60E-06 8.98E-06 0.00E+00 0.00E+00 0.00E+00 8.97E-06 Co-60 0.00E+00 1.08E-05 2.55E-05 0.00E+00 0.00E+00 0.00E+00 2.57E-05 Ni-63 6.34E-04 3.92E-05 2.20E-05 0.00E+00 0.00E+00 0.00E+00 1.95E-06 Ni-65 4.70E-06 5.32E-07 2.42E-07 0.00E+00 0.00E+00 0.00E+00 4.05E-05 Cu-64 0.00E+00 6.09E-07 2.82E-07 0.00E+00 1.03E-06 0.00E+00 1.25E-05 Zn-65 1.84E-05 6.31E-05 2.91E-05 0.00E+00 3.06E-05 0.00E+00 5.33E-05 Zn-69 9.33E-08 1.68E-07 1.25E-08 0.00E+00 6.98E-08 0.00E+00 1.37E-05 Zn-69m 1.50E-06 3.06E-06 2.79E-07 0.00E+00 1.24E-06 0.00E+00 4.24E-05 Br-82 0.00E+00 0.00E+00 1.27E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-83 0.00E+00 0.00E+00 3.63E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-84 0.00E+00 0.00E+00 3.82E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-85 0.00E+00 0.00E+00 1.94E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Rb-86 0.00E+00 1.70E-04 8.40E-05 0.00E+00 0.00E+00 0.00E+00 4.35E-06 Rb-88 0.00E+00 4.98E-07 2.73E-07 0.00E+00 0.00E+00 0.00E+00 4.85E-07 Rb-89 0.00E+00 2.86E-07 1.97E-07 0.00E+00 0.00E+00 0.00E+00 9.74E-08 Sr-89 2.51E-03 0.00E+00 7.20E-05 0.00E+00 0.00E+00 0.00E+00 5.16E-05 Sr-90 1.85E-02 0.00E+00 4.71E-03 0.00E+00 0.00E+00 0.00E+00 2.31E-04 Sr-91 5.00E-05 0.00E+00 1.81E-06 0.00E+00 0.00E+00 0.00E+00 5.92E-05 Sr-92 1.92E-05 0.00E+00 7.13E-07 0.00E+00 0.00E+00 0.00E+00 2.07E-04 Y-90 8.69E-08 0.00E+00 2.33E-09 0.00E+00 0.00E+00 0.00E+00 1.20E-04 Y-91m 8.10E-10 0.00E+00 2.76E-11 0.00E+00 0.00E+00 0.00E+00 2.70E-06 Y-91 1.13E-06 0.00E+00 3.01E-08 0.00E+00 0.00E+00 0.00E+00 8.10E-05 Y-92 7.65E-09 0.00E+00 2.15E-10 0.00E+00 0.00E+00 0.00E+00 1.46E-04 Y-93 2.43E-08 0.00E+00 6.62E-10 0.00E+00 0.00E+00 0.00E+00 1.92E-04 Zr-95 2.06E-07 5.02E-08 3.56E-08 0.00E+00 5.41E-08 0.00E+00 2.50E-05 Zr-97 1.48E-08 2.54E-09 1.16E-09 0.00E+00 2.56E-09 0.00E+00 1.62E-04

0-ODCM-001 Revision 0024 Page 108 of 227 Table 6.4 (11 of 12)

INGESTION DOSE FACTORS (mrem/pCi ingested)

INFANT Nuclide bone liver t body thyroid kidney lung gi-lli Nb-95 4.20E-08 1.73E-08 1.00E-08 0.00E+00 1.24E-08 0.00E+00 1.46E-05 Nb-97 4.59E-10 9.79E-11 3.53E-11 0.00E+00 7.65E-11 0.00E+00 3.09E-05 Mo-99 0.00E+00 3.40E-05 6.63E-06 0.00E+00 5.08E-05 0.00E+00 1.12E-05 Tc-99m 1.92E-09 3.96E-09 5.10E-08 0.00E+00 4.26E-08 2.07E-09 1.15E-06 Tc-101 2.27E-09 2.86E-09 2.83E-08 0.00E+00 3.40E-08 1.56E-09 4.86E-07 Ru-103 1.48E-06 0.00E+00 4.95E-07 0.00E+00 3.08E-06 0.00E+00 1.80E-05 Ru-105 1.36E-07 0.00E+00 4.58E-08 0.00E+00 1.00E-06 0.00E+00 5.41E-05 Ru-106 2.41E-05 0.00E+00 3.01E-06 0.00E+00 2.85E-05 0.00E+00 1.83E-04 Ag-110m 9.96E-07 7.27E-07 4.81E-07 0.00E+00 1.04E-06 0.00E+00 3.77E-05 Sb-124 2.14E-05 3.15E-07 6.63E-06 5.68E-08 0.00E+00 1.34E-05 6.60E-05 Sb-125 1.23E-05 1.19E-07 2.53E-06 1.54E-08 0.00E+00 7.72E-06 1.64E-05 Te-125m 2.33E-05 7.79E-06 3.15E-06 7.84E-06 0.00E+00 0.00E+00 1.11E-05 Te-127m 5.85E-05 1.94E-05 7.08E-06 1.69E-05 1.44E-04 0.00E+00 2.36E-05 Te-127 1.00E-06 3.35E-07 2.15E-07 8.14E-07 2.44E-06 0.00E+00 2.10E-05 Te-129m 1.00E-04 3.43E-05 1.54E-05 3.84E-05 2.50E-04 0.00E+00 5.97E-05 Te-129 2.84E-07 9.79E-08 6.63E-08 2.38E-07 7.07E-07 0.00E+00 2.27E-05 Te-131m 1.52E-05 6.12E-06 5.05E-06 1.24E-05 4.21E-05 0.00E+00 1.03E-04 Te-131 1.76E-07 6.50E-08 4.94E-08 1.57E-07 4.50E-07 0.00E+00 7.11E-06 Te-132 2.08E-05 1.03E-05 9.61E-06 1.52E-05 6.44E-05 0.00E+00 3.81E-05 I-130 6.00E-06 1.32E-05 5.30E-06 1.48E-03 1.45E-05 0.00E+00 2.83E-06 I-131 3.59E-05 4.23E-05 1.86E-05 1.39E-02 4.94E-05 0.00E+00 1.51E-06 I-132 1.66E-06 3.37E-06 1.20E-06 1.58E-04 3.76E-06 0.00E+00 2.73E-06 I-133 1.25E-05 1.82E-05 5.33E-06 3.31E-03 2.14E-05 0.00E+00 3.08E-06 I-134 8.69E-07 1.78E-06 6.33E-07 4.15E-05 1.99E-06 0.00E+00 1.84E-06 I-135 3.64E-06 7.24E-06 2.64E-06 6.49E-04 8.07E-06 0.00E+00 2.62E-06 Cs-134 3.77E-04 7.03E-04 7.10E-05 0.00E+00 1.81E-04 7.42E-05 1.91E-06 Cs-136 4.59E-05 1.35E-04 5.04E-05 0.00E+00 5.38E-05 1.10E-05 2.05E-06 Cs-137 5.22E-04 6.11E-04 4.33E-05 0.00E+00 1.64E-04 6.64E-05 1.91E-06 Cs-138 4.81E-07 7.82E-07 3.79E-07 0.00E+00 3.90E-07 6.09E-08 1.25E-06 Ba-139 8.81E-07 5.84E-10 2.55E-08 0.00E+00 3.51E-10 3.54E-10 5.58E-05 Ba-140 1.71E-04 1.71E-07 8.81E-06 0.00E+00 4.06E-08 1.05E-07 4.20E-05 Ba-141 4.25E-07 2.91E-10 1.34E-08 0.00E+00 1.75E-10 1.77E-10 5.19E-06 Ba-142 1.84E-07 1.53E-10 9.06E-09 0.00E+00 8.81E-11 9.26E-11 7.59E-07

0-ODCM-001 Revision 0024 Page 109 of 227 Table 6.4 (12 of 12)

INGESTION DOSE FACTORS (mrem/pCi ingested)

INFANT Nuclide bone liver t body thyroid kidney lung gi-lli La-140 2.11E-08 8.32E-09 2.14E-09 0.00E+00 0.00E+00 0.00E+00 9.77E-05 La-142 1.10E-09 4.04E-10 9.67E-11 0.00E+00 0.00E+00 0.00E+00 6.86E-05 Ce-141 7.87E-08 4.80E-08 5.65E-09 0.00E+00 1.48E-08 0.00E+00 2.48E-05 Ce-143 1.48E-08 9.82E-06 1.12E-09 0.00E+00 2.86E-09 0.00E+00 5.73E-05 Ce-144 2.98E-06 1.22E-06 1.67E-07 0.00E+00 4.93E-07 0.00E+00 1.71E-04 Pr-143 8.13E-08 3.04E-08 4.03E-09 0.00E+00 1.13E-08 0.00E+00 4.29E-05 Pr-144 2.74E-10 1.06E-10 1.38E-11 0.00E+00 3.84E-11 0.00E+00 4.93E-06 Nd-147 5.53E-08 5.68E-08 3.48E-09 0.00E+00 2.19E-08 0.00E+00 3.60E-05 W-187 9.03E-07 6.28E-07 2.17E-07 0.00E+00 0.00E+00 0.00E+00 3.69E-05 Np-239 1.11E-08 9.93E-10 5.61E-10 0.00E+00 1.98E-09 0.00E+00 2.87E-05

References:

Dose Factors for Co-57, Zn-69m, Br-82, Nb-97, Sb-124 and Sb-125 are from NUREG-0172 Age Specific Radiation Dose Commitment Factors for a One Year Chronic Intake,, November, 1977, Table 1.

All others:

Regulatory Guide 1.109, Table E-14.

NOTE: The tritium dose factor for bone is assumed to be equal to the total body dose factor.

0-ODCM-001 Revision 0024 Page 110 of 227 Table 6.5 BIOACCUMULATION FACTORS FOR FRESHWATER FISH (pCi/kg per pCi/L)

H-3 9.0E-01 Tc-99m 1.5E+01 C-14 4.6E+03 Tc-101 1.5E+01 Na-24 1.0E+02 Ru-103 1.0E+01 P-32 1.0E+05 Ru-105 1.0E+01 Cr-51 2.0E+02 Ru-106 1.0E+01 Mn-54 4.0E+02 Ag-110m 2.3E+00 Mn-56 4.0E+02 Sb-124 1.0E+00 Fe-55 1.0E+02 Sb-125 1.0E+00 Fe-59 1.0E+02 Te-125m 4.0E+02 Co-57 5.0E+01 Te-127m 4.0E+02 Co-58 5.0E+01 Te-127 4.0E+02 Co-60 5.0E+01 Te-129m 4.0E+02 Ni-63 1.0E+02 Te-129 4.0E+02 Ni-65 1.0E+02 Te-131m 4.0E+02 Cu-64 5.0E+01 Te-131 4.0E+02 Zn-65 2.0E+03 Te-132 4.0E+02 Zn-69 2.0E+03 I-130 4.0E+01 Zn-69m 2.0E+03 I-131 4.0E+01 Br-82 4.2E+02 I-132 4.0E+01 Br-83 4.2E+02 I-133 4.0E+01 Br-84 4.2E+02 I-134 4.0E+01 Br-85 4.2E+02 I-135 4.0E+01 Rb-86 2.0E+03 Cs-134 1.9E+03 Rb-88 2.0E+03 Cs-136 1.9E+03 Rb-89 2.0E+03 Cs-137 1.9E+03 Sr-89 5.6E+01 Cs-138 1.9E+03 Sr-90 5.6E+01 Ba-139 4.0E+00 Sr-91 5.6E+01 Ba-140 4.0E+00 Sr-92 5.6E+01 Ba-141 4.0E+00 Y-90 2.5E+01 Ba-142 4.0E+00 Y-91m 2.5E+01 La-140 2.5E+01 Y-91 2.5E+01 La-142 2.5E+01 Y-92 2.5E+01 Ce-141 1.0E+00 Y-93 2.5E+01 Ce-143 1.0E+00 Zr-95 3.3E+00 Ce-144 1.0E+00 Zr-97 3.3E+00 Pr-143 2.5E+01 Nb-95 3.0E+04 Pr-144 2.5E+01 Nb-97 3.0E+04 Nd-147 2.5E+01 Mo-99 1.0E+01 W-187 1.2E+03 Np-239 1.0E+01

References:

Bioaccumulation factors for Antimony nuclides are from ORNL-4992, "A Methodology for Calculating Radiation Doses from Radioactivity Released to the Environment, March 1976, Table 4.12A.

Bioaccumulation factors for Iodine, Cesium, and Strontium nuclides are from NUREG/CR-1004, Table 3.2.4.

All other nuclides' bioaccumulation factors are from Regulatory Guide 1.109, Table A-1.

0-ODCM-001 Revision 0024 Page 111 of 227 Table 6.6 (1 of 2)

EXTERNAL DOSE FACTORS FOR STANDING ON CONTAMINATED GROUND (mrem/h per pCi/m2)

Nuclide Total Body Skin H-3 0.0 0.0 C-14 0.0 0.0 Na-24 2.50E-08 2.90E-08 P-32 0.0 0.0 Cr-51 2.20E-10 2.60E-10 Mn-54 5.80E-09 6.80E-09 Mn-56 1.10E-08 1.30E-08 Fe-55 0.0 0.0 Fe-59 8.00E-09 9.40E-09 Co-57 1.77E-09 2.21E-09 Co-58 7.00E-09 8.20E-09 Co-60 1.70E-08 2.00E-08 Ni-63 0.0 0.0 Ni-65 3.70E-09 4.30E-09 Cu-64 1.50E-09 1.70E-09 Zn-65 4.00E-09 4.60E-09 Zn-69 0.0 0.0 Zn-69m 5.50E-09 6.59E-09 Br-82 3.18E-08 3.90E-08 Br-83 6.40E-11 9.30E-11 Br-84 1.20E-08 1.40E-08 Br-85 0.0 0.0 Rb-86 6.30E-10 7.20E-10 Rb-88 3.50E-09 4.00E-09 Rb-89 1.50E-08 1.80E-08 Sr-89 5.60E-13 6.50E-13 Sr-91 7.10E-09 8.30E-09 Sr-92 9.00E-09 1.00E-08 Y-90 2.20E-12 2.60E-12 Y-91m 3.80E-09 4.40E-09 Y-91 2.40E-11 2.70E-11 Y-92 1.60E-09 1.90E-09 Y-93 5.70E-10 7.80E-10 Zr-95 5.00E-09 5.80E-09 Zr-97 5.50E-09 6.40E-09 Nb-95 5.10E-09 6.00E-09 Nb-97 8.11E-09 1.00E-08 Mo-99 1.90E-09 2.20E-09 Tc-99m 9.60E-10 1.10E-09 Tc-101 2.70E-09 3.00E-09 Ru-103 3.60E-09 4.20E-09 Ru-105 4.50E-09 5.10E-09 Ru-106 1.50E-09 1.80E-09 Ag-110m 1.80E-08 2.10E-08 Sb-124 2.17E-08 2.57E-08

0-ODCM-001 Revision 0024 Page 112 of 227 Table 6.6 (2 of 2)

EXTERNAL DOSE FACTORS FOR STANDING ON CONTAMINATED GROUND (mrem/h per pCi/m2)

Nuclide Total Body Skin Sb-125 5.48E-09 6.80E-09 Te-125m 3.50E-11 4.80E-11 Te-127m 1.10E-12 1.30E-12 Te-127 1.00E-11 1.10E-11 Te-129m 7.70E-10 9.00E-10 Te-129 7.10E-10 8.40E-10 Te-131m 8.40E-09 9.90E-09 Te-131 2.20E-09 2.60E-06 Te-132 1.70E-09 2.00E-09 I-130 1.40E-08 1.70E-08 I-131 2.80E-09 3.40E-09 I-132 1.70E-08 2.00E-08 I-133 3.70E-09 4.50E-09 I-134 1.60E-08 1.90E-08 I-135 1.20E-08 1.40E-08 Cs-134 1.20E-08 1.40E-08 Cs-136 1.50E-08 1.70E-08 Cs-137 4.20E-09 4.90E-09 Cs-138 2.10E-08 2.40E-08 Ba-139 2.40E-09 2.70E-09 Ba-140 2.10E-09 2.40E-09 Ba-141 4.30E-09 4.90E-09 Ba-142 7.90E-09 9.00E-09 La-140 1.50E-08 1.70E-08 La-142 1.50E-08 1.80E-08 Ce-141 5.50E-10 6.20E-10 Ce-143 2.20E-09 2.50E-09 Ce-144 3.20E-10 3.70E-10 Pr-143 0.0 0.0 Pr-144 2.00E-10 2.30E-10 Nd-147 1.00E-09 1.20E-09 W-187 3.10E-09 3.60E-09 Np-239 9.50E-10 1.10E-09

References:

Dose Factors for Co-57, Zn-69m, Br-82, Nb-97, Sb-124 and Sb-125 are from Dose-Rate Conversion Factors for External Exposure to Photon and Electron Radiation from Radionuclides Occurring in Routine Releases from Nuclear Fuel Cycle Facilities, D. C. Kocher, Health Physics Volume 38, April 1980.

All Others:

Regulatory Guide 1.109, Table E-6.

0-ODCM-001 Revision 0024 Page 113 of 227 Figure 6.1 LIQUID RELEASE POINTS

0-ODCM-001 Revision 0024 Page 114 of 227 Figure 6.2 LIQUID RADWASTE SYSTEM

0-ODCM-001 Revision 0024 Page 115 of 227 SECTION 7.0 GASEOUS EFFLUENTS

0-ODCM-001 Revision 0024 Page 116 of 227 7.0 GASEOUS EFFLUENTS RELEASE POINTS DESCRIPTION There are eleven monitored discharge points at BFN: a Reactor Building Exhaust for each unit, the Radwaste Building Exhaust, two sets of Turbine Deck Roof Fans for each unit, and the Stack. The Reactor and Radwaste Exhausts are located on the roof of the reactor building.

The Reactor Building Exhausts include exhaust from the refuel floor of the reactor buildings, exhaust from the Primary Containment Purge System, and exhaust from the turbine buildings. These discharge points are monitored by radiation monitors 1-,2-,3-RM-90-250.

The Radwaste Building Exhaust includes exhaust from the common radwaste building. This discharge point is monitored by radiation monitor RM-90-252.

There are nine roof fans on the roof of each unit's turbine building to provide building ventilation. These are generally used in the warmer months to control building temperature. For each unit, there are two radiation monitors. One of these monitors the exhaust through four of the fans (1-,2-RM-90-249 and 3-RM-90-251). The other monitors the exhaust through the remaining five fans (1-,2-RM-90-251 and 3-RM-90-249).

The common 600 foot plant stack receives the Condenser Offgas exhaust, the Filter Cubicle exhaust, the Steam Packing and Mechanical Vacuum exhaust, and the Standby Gas Treatment System (SBGTS) exhaust. The stack effluents are monitored by radiation monitors RM-90-147 and 148.

Figures 7.1 and 7.2 show the Offgas System, the Standby Gas Treatment System and normal building ventilation with effluent monitor locations.

0-ODCM-001 Revision 0024 Page 117 of 227 7.1 GASEOUS EFFLUENT MONITOR INSTRUMENT SETPOINTS ODCM Control 1.1.2 requires that gaseous effluent monitors have alarm/trip setpoints to ensure that ODCM dose rate limits are not exceeded. This section of the ODCM describes the methodology that is used to determine the allowable values which are used to calculate the physical settings on the monitors. The monitor setpoints are calculated in the applicable Scaling and Setpoint Document. Figures 7.1 and 7.2 show the Offgas System, the Standby Gas Treatment System and normal building ventilation with the effluent monitor locations.

All gaseous releases from BFN are continuous, so allowable values are calculated for each of the monitors as a part of a release permit package per sampling requirements of Table 2.2-2. Using the actual radionuclide mix as measured in a sample, a maximum allowable value is calculated (as described below) and compared to a default allowable value assigned to that monitor.

The default allowable values are described in Section 7.1.2. The lower of the two values is the recommended setpoint for that release point. If the release point is one of several leading into a common discharge point, all current releases into that discharge point are used in the calculation of the discharge point monitor allowable value (e.g., the stack).

7.1.1 Maximum Allowable Value An expected monitor response is calculated from the sample results:

R = B + Ei Ci (7.1) i where:

B = monitor background, cpm or cps.

Ei = efficiency factor for the monitor for nuclide i, cpm per µCi/cc or cps per µCi/cc.

Ci = measured concentration of nuclide i, µCi/cc.

The expected response is then used to determine the calculated maximum allowable value, Smax in cpm or cps. This value corresponds to the dose rate limit for the measured radionuclide mix and is determined using the following equation:

DRlim Smax = ( A SF ( (R - B))) + B (7.2)

DR where:

A = dose rate allocation factor for the release/discharge point, dimensionless. The dose rate allocation factor for the stack is 0.1, the building vent allocation factors are equal to 0.9 times the fraction of the total building flow assigned to that particular vent.

0-ODCM-001 Revision 0024 Page 118 of 227 7.1.1 Maximum Allowable Value (continued)

SF = safety factor for the monitor, dimensionless.

DRlim = the dose rate limit, mrem/y.

= 500 mrem/y to the total body for noble gases,

= 3000 mrem/y to the skin for noble gases, and DR = the calculated dose rate for the release, mrem/y.

= DRTB for total body (as described in Section 7.3.2.1),

= DRs for skin (as described in Section 7.3.2.2), and R = expected monitor response (as calculated above) cpm or cps.

B = the monitor background, cpm or cps.

7.1.2 Default Allowable Values The methodology for determining the default alarm/trip allowable values is divided into two major parts. The first consists of backcalculating from a dose rate to a release rate limit, in µCi/s, for each release point. The methodology for determining these release rate limits is given in Section 7.2. The second part consists of using the release rate limits to determine default allowable values for the monitors.

The default allowable values are calculated using the following equation.

Allowable Value r f A + B (7.3)

F E where:

r = release rate limit for stack or ground level, µCi/s. The release rate limits used for the allowable value calculation are 1.44E+07

µCi/s for the stack and 1.50E+05 µCi/s for the building vents.

f = fraction of the limits r which is allowed for the release mode (elevated or ground level).

NOTE: The sum of the f values for elevated and ground levels must be less than or equal to 1. This lowers the limits to ensure that the site dose rate limit will not be exceeded if both the stack and the ground level release rate limits were reached simultaneously.

A = allocation factor. This is the portion of the release rate limit r which is assigned to the release point under consideration. This ensures that the ground level release rate limit will not be exceeded if all building vents were to reach their limit simultaneously. This is equal to 1 for the stack. The building vent release rate limit is divided among the ten vents based on the flow rates.

F = flow rate for the vent, cc/s. Maximum flow rates are used to ensure conservative setpoints.

E = efficiency of the monitor, (µCi/cc)/cpm or (µCi/cc)/cps.

B = background of the monitor, cpm or cps.

The calculation of these setpoints are documented further in 0-TI-15 and the applicable Scaling and Setpoint Document, including the numerical values for each of the parameters described above.

0-ODCM-001 Revision 0024 Page 119 of 227 7.2 RELEASE RATE LIMIT METHODOLOGY A dose rate (DTB, DS or DTH) is calculated based on the design objective source term mix used in the licensing of the plant. Dose rates are determined for (1) noble gases as described in Section 7.3.2 and (2) iodines and particulates as described in Section 7.3.3.

The dose rate limits of interest are:

Total Body = 500 mrem/y Skin = 3000 mrem/y Maximum Organ = 1500 mrem/y A release rate limit based on organ dose rates is not considered since iodine and particulate releases are not determined on a real time basis. The total body and skin dose rate limits are divided by the corresponding calculated dose rates described above:

Total Body Dose Rate Limit RTB(vent or stack) =

DTB (vent or stack)

Skin Dose Rate Limit RS(vent or stack) =

DS (vent or stack)

These ratios represent how far above or below the guidelines the dose rate calculations were.

A total release rate, Q, for each release level (building vent or stack) is calculated, using the source term data in Table 7.2. Thus, two total release rates are calculated:

Qngv = Total noble gas release rate from building exhaust vents, Ci/s.

Qngs = Total noble gas release rate from main stack, Ci/s.

To obtain a release rate limit, r, for each release level, the total release rate, Q, for that release level is multiplied by the corresponding ratio, R:

For noble gases released from building vents:

rngv = RTBv Qngv, or

= RSv Qngv whichever is more restrictive, i.e., smaller.

0-ODCM-001 Revision 0024 Page 120 of 227 7.2 RELEASE RATE LIMIT METHODOLOGY (Continued) where:

rngv = Calculated release rate limit for noble gases released from building vents.

RTBv = Ratio of total body dose rate limit to total body dose rate for building vent releases, as calculated above.

Qngv = Total Table 7.2 noble gas release rate from building vents.

RSv = Ratio of skin dose rate limit to skin dose rate for building vent releases, as calculated above.

For noble gases released from the stack:

rngs = RTBs Qngs, or

= RSs Qngs whichever is more restrictive, i.e., smaller.

where:

rngs = Calculated release rate limit for noble gases released from the stack.

RTBs = Ratio of total body dose rate limit to total body dose rate for stack releases, as calculated above.

Qngs = Total Table 7.2 noble gas release rate from stack.

RSs = Ratio of skin dose rate limit to skin dose rate for stack releases, as calculated above.

The release rate limits, r, calculated for BFN using this methodology are:

Noble Gas Stack rngs = 1.44E+01 Ci/s Building Vents rngv = 1.50E-01 Ci/s

0-ODCM-001 Revision 0024 Page 121 of 227 7.3 GASEOUS EFFLUENTS - DOSE RATES 7.3.1 RELEASE SAMPLING As required by Table 2.2-2, a grab sample is taken and analyzed to determine the concentration, µCi/cc, of each noble gas nuclide. On at least a weekly basis, filters are analyzed to determine the amount of iodines and particulates released. Composite samples are maintained (as required by Table 2.2-2) to determine the concentration of certain nuclides (e.g., Sr-89, Sr-90, and alpha emitters).

7.3.2 NOBLE GAS DOSE RATES Dose rates are calculated in order to determine compliance with the requirements of ODCM Control 1.2.2.1. Dose rates are calculated for total body and skin due to noble gases using semi-infinite and finite cloud models as described in NUREG 0133. The release mode will determine the model used:

turbine building releases are treated as ground level and use the semi-infinite model; reactor and radwaste building vents are treated as split-level (or mixed mode) and use the semi-infinite model; and stack releases are elevated and use the finite cloud model.

7.3.2.1 Total Body Dose Rate The dose rate to the total body, DRTB in mrem/y, is calculated using the following equation:

DRTB = [Vi Qis + DFBi ((/Q)g Qig) + DFBi ((/Q)m Qim)] (7.4) i where:

Vi = the constant for each identified noble gas radionuclide accounting for the gamma radiation from the elevated finite plume, in mrem/y per

µCi/s, as given in Table 7.4 Qis = the release rate of radionuclide i, in gaseous effluents from the stack, µCi/s.

DFBi = total body submersion dose factor due to gamma radiation for noble gas nuclide i, mrem/y per µCi/m3 (Table 7.4).

/Qg = for ground level releases, the highest calculated annual average relative concentration for any area at or beyond the unrestricted area boundary, s/m3 (Table 7.1).

Qig = the release rate of radionuclide i, in the gaseous effluents from all ground level releases, µCi/s.

/Qm = for split-level releases, the highest calculated annual average relative concentration for any area at or beyond the unrestricted area boundary, s/m3 (Table 7.1).

Qim = the release rate of radionuclide i, in gaseous effluents from all split level releases, µCi/s.

0-ODCM-001 Revision 0024 Page 122 of 227 7.3.2.2 Skin Dose Rate The dose rate to the skin, DRs in mrem/y, is calculated using the following equation:

DRs = [ (DFSi /Qs + 1.1 Bi) Qis + ((DFSi + 1.1 DFi) /Qg Qig) i + ((DFSi + 1.1 DFi) /Qm Qim) ] (7.5) where:

DFSi = the skin dose factor due to beta emissions for each identified noble gas radionuclide, mrem/y per µCi/m3.

/Qs = for stack releases, the highest calculated annual average relative concentration for any area at or beyond the unrestricted area boundary, s/m3 (Table 7.1).

Bi = the constant for long term releases (greater than 500 h/y) for each identified noble gas radionuclide accounting for the gamma radiation from the elevated finite plume, mrad/y per µCi/s (Table 7.4).

Qis = the release rate of radionuclide i, in gaseous effluents from the stack, µCi/s.

DFi = the air dose factor due to gamma emissions for each identified noble gas radionuclide, mrad/y per µCi/m3 (unit conversion factor of 1.1 mrem/mrad converts air dose to skin dose) (Table 7.4).

/Qg = for ground level releases, the highest calculated annual average relative concentration for any area at or beyond the unrestricted area boundary, s/m3 (Table 7.1).

Qig = the release rate of radionuclide i, in gaseous effluents from all ground level releases, µCi/s.

/Qm = for split level releases, the highest calculated annual average relative concentration for any area at or beyond the unrestricted area boundary, s/m3 (Table 7.1).

Qim = the release rate of radionuclide i, in gaseous effluents from all split level releases, µCi/s.

0-ODCM-001 Revision 0024 Page 123 of 227 7.3.3 I-131, I-133, TRITIUM AND ALL RADIONUCLIDES IN PARTICULATE FORM WITH HALF-LIVES OF GREATER THAN 8 DAYS - ORGAN DOSE RATE Organ dose rates due to I-131, I-133, Tritium and all radionuclides in particulate form with half-lives of greater than 8 days, DRj in mrem/y, are calculated for all age groups (adult, teen, child, and infant) and all organs (bone, liver, total body, thyroid, kidney, lung, and GI Tract) using the following equation:

DRj = FD [ CTD(/Q)D[RIT+RCTP] + CiD[(/Q)D RIi+(D/Q)D[RCPi+RGi))] (7.6)

D i where:

FD = flowrate of effluent stream from discharge point D, cc/s.

CTD = concentration of tritium in effluent stream at discharge point D,

µCi/cc.

/QD = the highest calculated annual average relative concentration for any area at or beyond the unrestricted area boundary for the release mode associated with the discharge point D, s/m3, (Table 7.1).

RIT = inhalation dose factor for tritium, mrem/y per µCi/m3. Dose factor is calculated as described in Section 7.8.19 (where: RIi = RIT, i.e., i=T for tritium).

RCTP = grass-cow-milk dose factor for tritium, mrem/y per µCi/m3. Dose factor is calculated as described in Section 7.8.7.

CiD = concentration of nuclide i in effluent stream at discharge point D,

µCi/cc.

RIi = inhalation dose factor for each identified nuclide i, mrem/y per

µCi/m3. Dose factors are calculated ad described in Section 7.8.19.

D/QD = the highest calculated annual average relative deposition for any area at or beyond the unrestricted area boundary for the release mode associated with discharge point D, m-2, (Table 7.1).

RCPi = grass-cow-milk dose factor for each identified nuclide i, m2-mrem/y per µCi/s. Dose factors are calculated as described in Section 7.8.1.

RGi = ground plane dose factor for each identified nuclide i, m2-mrem/y per µCi/s. Dose factors are calculated as described in Section 7.8.20.

The organ dose rates for all pathways are summed to find the total site dose rate. The maximum organ dose rate is selected from among the dose rates calculated for all locations, organs, and age groups.

0-ODCM-001 Revision 0024 Page 124 of 227 7.4 CUMULATIVE DOSE - NOBLE GASES Doses to be calculated are gamma and beta air doses due to exposure to noble gases. For elevated releases (stack), a finite cloud model will be used for the gamma dose. All other releases will be calculated using a semi-infinite cloud model. The doses will be calculated at three locations: the land-site boundary locations with the highest annual-average split-level /Q; the land-site boundary location with the highest ground-level annual-average /Q; and the offsite location with the highest annual-average elevated-level /Q.

The joint frequency distributions for the three levels of met data are given in Table 7.3. The locations, and their respective dispersion factors are listed in Table 7.1. Dispersion factors are calculated using the methodology described in Section 7.9.2 No credit is taken for radioactive decay.

7.4.1 Gamma Dose to Air The gamma air dose, D in mrad, is calculated for each release permit using one of the following equations:

For ground or split-level release/discharge points:

D = 3.17E-08 T [ DFi Qi /Q ] (7.7) i For elevated release/discharge points:

D = 3.17E-08 T [ Bi Qi ] (7.8) i where:

3.17E-08 = conversion factor, y/s.

T = duration of release, s.

DFi = dose conversion factor for external gamma for nuclide i (Table 7.4), mrad/y per µCi/m3.

Qi = the release rate of radionuclide i, µCi/s.

/Q = the highest calculated annual-average relative concentration for any area at or beyond the unrestricted area boundary for the release type under consideration (Table 7.1), s/m3.

Bi = the constant for long term releases (greater than 500 h/y) for each identified noble gas radionuclide accounting for the gamma radiation from the elevated finite plume (Table 7.4), mrad/y per

µCi/s.

The location with the highest dose is selected as the critical receptor for each release. This receptor is used in the determination of the cumulative doses in Section 7.4.3.

0-ODCM-001 Revision 0024 Page 125 of 227 7.4.2 Beta Dose to Air The beta air dose, D in mrad, is calculated for each release permit using the following equation:

D = 3.17E-08 T [ DFi (Qi /Q ) ] (7.9) i where:

3.17E-08 = conversion factor, y/s.

T = duration of release, s.

DFi = dose conversion factor for external beta for nuclide i (Table 7.4), mrad/y per µCi/m3.

Qi = the release rate of radionclide i from the release/discharge point under consideration, µCi/s.

/Q = the highest calculated annual average relative concentration for any area at or beyond the unrestricted area boundary for the release/discharge point under consideration (Table 7.1), s/m3.

The beta-air dose calculated by this method will be used in the cumulative dose calculations discussed in Section 7.4.3.

7.4.3 Cumulative Dose - Noble Gas Quarterly and annual sums of all doses are calculated for each release as described below to compare to the limits listed in ODCM Control 1.2.2.2.

For noble gases, cumulative doses are calculated for gamma and beta air doses. Doses due to each release are summed with the doses for all previous release in the quarter or year to obtain cumulative quarterly and annual doses.

7.4.4 Comparison to Limits The cumulative calendar quarter and calendar year doses are compared to their respective limits for each release to determine compliance.

0-ODCM-001 Revision 0024 Page 126 of 227 7.5 CUMULATIVE DOSE - I-131, I-133, TRITIUM AND RADIONUCLIDES IN PARTICULATE FORM WITH HALF-LIVES GREATER THAN 8 DAYS 7.5.1 Organ Dose Calculation Organ dose due to I-131, I-133, tritium and all radionuclides in particulate form with half-lives of greater than 8 days are calculated for each release permit for the critical receptor. Carbon 14 production and effluent source term is based on EPRI methodology provided in EPRI Report 1021106, Estimation of Carbon-14 in Nuclear Power Plant Gaseous Effluents, December 2010(Carbon-14 value in Table 7.2 is from NUREG 0016 and is less conservative. The critical receptor is defined as the receptor with the highest calculated dose of all the receptors defined in Table 7.1. Annual average /Q and D/Q are calculated using the methodology in Sections 7.9.2 and 7.9.3 using the historical 1977-88 meteorological data (Table 7.3). Pathways considered to exist at these locations are inhalation, ground plane exposure, grass-cow-milk ingestion, grass-cow-beef ingestion and fresh leafy and stored vegetable ingestion. All age groups are considered (adult, teen, child and infant). Dose factors for these age groups and pathways are calculated as described in Section 7.8. For the ground exposure pathway, which has no age or organ specific dose factors, the total body dose will be added to the internal organ doses for all age groups. No credit is taken for radioactive decay.

The general equation for the calculation of organ dose is:

Dorg = 3.17E-08 T Rpi [ Wp Qi ] (7.10) i P where:

3.17E-08 = conversion factor, y/s.

T = duration of release from release/discharge point under consideration, s.

Rpi = dose factor for pathway P for each identified nuclide i, m2-mrem/y per µCi/s for ground plane, grass-cow-milk, grass-cow-meat, and vegetation pathways, and mrem/y per µCi/m3 for inhalation and tritium ingestion pathways. Equations for calculating these dose factors are given in Section 7.8.

Wp = dispersion factor for the release/discharge point under consideration and pathway P (Table 7.1).

= /Q for the inhalation, tritium ingestion, and carbon 14 pathways,

= D/Q for the food and ground plane pathways, Qi = release rate for radionuclide i from release/discharge point under consideration, µCi/s.

The receptor with the highest dose of all locations, age groups and organs is selected as the critical receptor. The age group with the highest dose for that receptor is selected as the critical age group. The organ dose for the critical age group will be used in the cumulative doses discussed in Section 7.5.2.

0-ODCM-001 Revision 0024 Page 127 of 227 7.5.2 Cumulative Doses Quarterly and annual sums of all doses are calculated for each release as described below to compare to the limits listed in ODCM Control 1.2.2.3.

For maximum organ dose, cumulative quarterly and annual doses are maintained for each of the eight organs considered. The cumulative dose is obtained by summing the doses for each organ of the critical age group (as calculated in Section 7.5.1) as determined for each release with the organ doses for all previous releases in the quarter or year to obtain the cumulative quarterly and annual doses. Thus, the cumulative organ doses will be conservative values, consisting of doses belonging to various age groups depending on the mix of radionuclides. The highest of these cumulative organ doses is used for the comparison to the limits described in ODCM Control 1.2.2.3.

7.5.3 Comparison to Limits The cumulative calendar quarter and calendar year doses are compared to their respective limits for each release to determine compliance.

0-ODCM-001 Revision 0024 Page 128 of 227 7.6 GASEOUS RADWASTE TREATMENT 7.6.1 DOSE PROJECTIONS There are two acceptable methods for projecting offsite dose due to the releases of radioactive materials in gases. Dose projections may be done by:

1. Averaging the calculated dose for the most recent month and the calculated dose for the previous month and assigning that average dose as the projection for the current month or,
2. The use of the following equations:

Dproj= td

  • Dq (7.11a) d Dproj= td
  • Dq (7.11b) d Dprojorgan= td
  • Doq (7.11c) d where:

Dproj = Maximum gamma air dose projection for the current 31-day period, mrem.

Dproj = Maximum beta air dose projection for the current 31-day period, mrem.

Dprojorgan = Maximum organ dose projection for the current 31-day period, mrem Dq = Maximum gamma air dose to date for current calendar quarter as obtained by either equation 7.8 or 7.9, mrem.

Dq = Maximum beta air dose to date for current calendar quarter as obtained by equation 7.9, mrem.

Doq = Maximum organ dose to date for current calendar quarter as obtained by equation 7.10, mrem.

d = Number of days in current calendar quarter at the end of the release.

td = 31, the number of days of concern.

If the results of the dose projection indicate potential doses in excess of the monthly fraction of the annual dose limit, efforts will be made to minimize future releases.

7.6.2 SYSTEM DESCRIPTION Figure 7.1 shows major elements of the Gaseous Radwaste Treatment System.

The system includes the subsystems that process and dispose of the gases from the main condenser air ejectors, the startup vacuum pumps, and the gland seal condensers. One gaseous radwaste treatment system is provided for each unit. The processed gases from each unit are routed to the plant stack for dilution and elevated release to the atmosphere. The air-ejector off-gas line of each unit and the stack are continuously monitored by radiation monitors.

0-ODCM-001 Revision 0024 Page 129 of 227 7.7 DOSE CALCULATIONS FOR REPORTING PURPOSES A complete dose analysis utilizing the total estimated gaseous releases for each calendar quarter will be performed and reported as required in ODCM Administrative Control 5.2. Methodology for this analysis is that which is described below, using the quarterly release values. For iodine releases, it will be assumed that half the iodines released are organic iodines, which contribute only to the inhalation dose. All real pathways and receptor locations (as identified in the most recent land use survey) are considered. In addition, actual meteorological data representative of each corresponding calendar quarter will be used to calculate dispersion factors as described in Section 7.9. Stack releases will be considered elevated releases. Radwaste and reactor building releases will be considered split-level releases. Turbine building releases will be treated as ground level.

7.7.1 Noble Gas Dose All measured radionuclides are used to calculate gamma and beta air doses.

The dose is evaluated at the nearest SITE BOUNDARY point in each sector and at other locations expected to be maximum exposure points using a semi-infinite cloud model. The use of a finite cloud model would result in calculated doses of 0 to 10 percent higher than those calculations using the semi-infinite cloud model for BFN.

Radioactive decay is considered in this calculation. The quarterly release is averaged over one year to obtain an average release rate.

0-ODCM-001 Revision 0024 Page 130 of 227 7.7.1.1 Gamma Dose to Air Dn = ni DFi (7.12) i where:

Dn = gamma dose to air for sector n, mrad.

ni = air concentration of radionuclide i in sector n, µCi-y/m3. Air concentrations are calculated as described by Equation 7.16.

DFi = gamma-to-air dose factor for radionuclide i, mrad/y per µCi/m3 (Table 7.4).

7.7.1.2 Beta Dose to Air Dn = ni DFi (7.13) i where:

Dn = beta dose to air for sector n, mrad.

ni = air concentration of radionuclide i in sector n, µCi-y/m3. Air concentrations are calculated as described by Equation 7.16.

DFi = beta-to-air dose factor for radionuclide i, mrad/y per µCi/m3 (Table 7.4).

0-ODCM-001 Revision 0024 Page 131 of 227 7.7.2 Radioiodine, Particulate, Carbon 14, and Tritium - Maximum Organ Dose The calculation of tritium and carbon concentration in vegetation is based on air concentration rather than ground deposition (Equation C-9 in Regulatory Guide 1.109). Therefore, a separate term is added to the equation to account for the tritium and carbon ingestion dose pathways. Organ doses due to radioiodine, particulate, tritium, and C 14 releases are calculated using the following equation:

Dorg= 3.17E-08 [(D/Q RPi + D/Q RGi + /Q RIi)Qi + (/Q RPT)QT (7.14) i P P

+ (/Q RPC14)QC14]

P where:

Dorg = Organ dose, mrem.

3.17E-08 = conversion factor, y/s.

/Q = Relative concentration for location under consideration, s/m3.

Relative concentrations are calculated as described by Equation 7.17.

RPi = ingestion dose factor for pathway P for each identified nuclide i (except tritium), m2-mrem/y per µCi/s. Ingestion pathways available for consideration include:

pasture grass-cow-milk ingestion stored feed-cow-milk ingestion pasture grass-goat-milk ingestion stored feed-goat-milk ingestion pasture grass-beef ingestion stored feed-beef ingestion fresh leafy vegetable ingestion stored vegetable ingestion Equations for calculating these ingestion dose factors are given in Sections 7.8.1 through 7.8.6.

D/Q = Relative deposition for location under consideration, m-2.

Relative deposition is calculated as described in Equation 7.18.

RGi = Dose factor for standing on contaminated ground, m2-mrem/y per

µCi/s. The equation for calculating the ground plane dose factor is given in Section 7.8.20.

RIi = Inhalation dose factor, mrem/y per µCi/m3. The equation for calculating the inhalation dose factor is given in Section 7.8.19.

0-ODCM-001 Revision 0024 Page 132 of 227 7.7.2 Radioiodine, Particulate, Crabon 14 and Tritium - Maximum Organ Dose (continued)

Qi = adjusted release for nuclide i for location under consideration,

µCi. The initial release is adjusted to account for decay between the release point and the location, depending on the frequency of wind speeds applicable to that sector. Hence, the adjusted release is equal to the actual release decayed for an average travel time during the period.

9

= Qi0 fj exp(-i x/uj) j=1 where:

Qi0 = initial average release for nuclide i over the period,

µCi.

fj = joint relative frequency of occurrence of winds in windspeed class j blowing toward this exposure point, expressed as a fraction.

i = radiological decay constant for nuclide i, s-1.

x = downwind distance, meters.

uj = midpoint value of wind speed class interval j, m/s.

RPT = ingestion dose factor for pathway P for tritium, mrem/y per µCi/m3.

Ingestion pathways available for consideration are the same as those listed above for RPi. Equations for calculating ingestion dose factors for tritium are given in Sections 7.8.7 through 7.8.12.

QT = adjusted release for tritium for location under consideration, µCi.

Calculated in the same manner as Qi above.

RPC14 = ingestion dose factor for pathway P for carbon 14, mrem/y per

µCi/m3. Ingestion pathways available for consideration are the same as those listed above for RPi. Equations for calculating ingestion dose factors for carbon 14 are given in Sections 7.8.13 through 7.8.18.

QC14 = adjusted release for carbon 14 for location under consideration, µCi.

Calculated in the same manner as Qi above.

0-ODCM-001 Revision 0024 Page 133 of 227 7.7.3 Population Doses For determining population doses to the 50-mile population around the plant, each compass sector is broken down into elements. These elements are defined in Table 7.5. For each of these sector elements, an average dose is calculated, and then multiplied by the population in that sector element.

Dispersion factors are calculated for the midpoint of each sector element (see Table 7.5) using the methodology described in Section 7.9. For population doses resulting from ingestion, it is conservatively assumed that all food eaten by the average individual is grown locally.

The general equation used for calculating the population dose in a given sector element is:

Dosepop = RATIOP

  • POPN
  • AGE
  • 0.001
  • DOSEP (7.15)

P where:

RATIOP = ratio of average to maximum dose for pathway P. (Average ingestion rates are obtained from Regulatory Guide 1.109, Table E-4.)

= 0.5 for submersion and ground exposure pathways, a shielding/occupancy factor.

= 1.0 for the inhalation pathway.

= 0.515, 0.515, 0.5, and 0.355 for milk, for infant, child, teen and adult, respectively. (It is assumed that the ratio of average to maximum infant milk ingestion rates is the same as that for child.)

= 1.0, 0.90, 0.91, 0.86 for beef ingestion, for infant, child, teen and adult, respectively.

= 1.0, 0.38, 0.38, 0.37 for vegetable ingestion, for infant, child, teen and adult, respectively. (It is assumed that the average individual eats no fresh vegetables, only stored vegetables.)

POPN = the population of the sector element, persons (Table 7.6).

AGE = fraction of the population belonging to each age group.

= 0.015, 0.168, 0.153, 0.665 for infant, child, teen and adult, respectively (fractions taken from NUREG/CR-1004, Table 3.39).

0.001 = conversion from mrem to rem.

DOSEP = the dose for pathway P to the maximum individual at the location under consideration, mrem. For ingestion pathways, this dose is multiplied by an average decay correction to account for decay as the food is moved through the food distribution cycle. This average decay correction, ADC, is defined as:

ADC = exp(-it), for milk and vegetables,

0-ODCM-001 Revision 0024 Page 134 of 227 7.7.3 Population Doses (continued) where:

i = decay constant for nuclide i, s.

t = distribution time for food product under consideration (from Regulatory Guide 1.109, Table D-1).

= 1.21E+06 s (14 d) for vegetables.

= 3.46E+05 s (4 d) for milk.

exp(-it) itcb ADC = , for meat, 1 - exp(-i tcb) where:

i = decay constant for nuclide i, s.

t = additional distribution time for meat, over and above the time for slaughter to consumption described in Section 7.8.3, 7d (from Regulatory Guide 1.109, Table D-2).

tcb = time to consume a whole beef, as described in Section 7.8.3.

For beef ingestion, the additional factors in the calculation of ADC negate the integration of the dose term over the period during which a whole beef is consumed, for the calculation of population dose. This assumes that the maximum individual freezes and eats a whole beef, but the average individual buys smaller portions at a time.

Population doses are summed over all sector elements to obtain a total population dose for the 50-mile population.

0-ODCM-001 Revision 0024 Page 135 of 227 7.7.4 Reporting of Doses The calculated quarterly doses and calculated population doses described in this section are reported in the Annual Radioactive Effluent Release Report as described in ODCM Administrative Control 5.2 7.7.5 Dose to a MEMBER OF THE PUBLIC Inside the SITE BOUNDARY The Basis for ODCM Control 1.2.2.1 states that for MEMBERS OF THE PUBLIC who may at times be within the SITE BOUNDARY, the occupancy factor of that MEMBER OF THE PUBLIC will usually be sufficiently low to compensate for any increase in the atmospheric dispersion factor above that for the SITE BOUNDARY.

The highest dose to a MEMBER OF THE PUBLIC will consider the effects of effluent pathways (onsite and offsite) and direct radiation from plant operating activities.

The dose to this hypothetical MEMBER OF THE PUBLIC will be determined on an annual basis (using the methodology above) to ensure that the actual exposure to any individual is less than 100 mrem/year. The results of this review will be included in the Annual Radiological Effluent Report pursuant to ODCM Administrative Control 5.2.

0-ODCM-001 Revision 0024 Page 136 of 227 7.8 GASEOUS DOSE FACTOR EQUATIONS 7.8.1 Pasture Grass-Cow/Goat-Milk Ingestion Dose Factors (m2-mrem/y per µCi/s) r(1-exp(-Etep)) Biv(1-exp(-itb))

RCPi = 106DFLiajUapFmiQfexp(-itfm)fpc { + }

Yp E P i where:

106 = conversion factor, pCi/µCi.

DFLiaj = ingestion dose conversion factor for nuclide i, age group a, organ j, mrem/pCi (Table 6.4).

Uap = milk ingestion rate for age group a, L/y.

Fmi = transfer factor for nuclide i from animal's feed to milk, d/L (Table 6.2).

Qf = animal's consumption rate, kg/d.

i = decay constant for nuclide i, s-1 (Table 6.2).

tfm = transport time from milking to receptor, s.

fpc = fraction of time animal spends on pasture, dimensionless.

r = fraction of activity retained on pasture grass, dimensionless.

E = the effective decay constant, due to radioactive decay and weathering, s-1, equal to i + w.

w = weathering decay constant for leaf and plant surfaces, s-1.

tep = time pasture is exposed to deposition, s.

Yp = agricultural productivity by unit area of pasture grass, kg/m2.

Biv = transfer factor for nuclide i from soil to vegetation, pCi/kg (wet weight of vegetation) per pCi/kg (dry soil).

tb = time period over which accumulation on the ground is evaluated, s.

P = effective surface density of soil, kg/m2.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 137 of 227 7.8.2 Stored Feed-Cow/Goat-Milk Ingestion Dose Factors (m2-mrem/y per µCi/s)

(1-exp(-itcsf))

RCSi = 106 DFLiaj Uap Fmi Qf fsc exp(-itmc) tcsf i r(1-exp(-Etesf)) Biv(1-exp(-itb))

{ + }

Ys E P i where:

106 = conversion factor, pCi/µCi.

DFLiaj = ingestion dose conversion factor for nuclide i, age group a, organ j, mrem/pCi (Table 6.4).

Uap = milk ingestion rate for age group a, L/y.

Fmi = transfer factor for nuclide i from animal's feed to milk, d/L (Table 6.2).

Qf = animal's consumption rate, kg/d.

fsc = fraction of time animal spends on stored feed, dimensionless.

i = decay constant for nuclide i, s-1 (Table 6.2).

tmc = transport time from milking to receptor, s.

tcsf = time between harvest of stored feed and consumption by animal, s.

r = fraction of activity retained on pasture grass, dimensionless.

E = the effective decay constant, due to radioactive decay and weathering, s-1, equal to i + w.

w = weathering decay constant for leaf and plant surfaces, s-1.

tesf = time stored feed is exposed to deposition, s.

Ys = agricultural productivity by unit area of stored feed, kg/m2.

Biv = transfer factor for nuclide i from soil to vegetation, pCi/kg (wet weight of vegetation) per pCi/kg (dry soil).

tb = time period over which accumulation on the ground is evaluated, s.

P = effective surface density of soil, kg/m2.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 138 of 227 7.8.3 Pasture Grass-Beef Ingestion Dose Factors (m2-mrem/y per µCi/s)

(1-exp(-itcb))

RMPi = 106 DFLiaj Uam Ffi Qf exp(-its) fp i tcb r(1-exp(-Etep)) Biv(1-exp(-itb))

{ + }

Yp E P i where:

106 = conversion factor, pCi/µCi.

DFLiaj = ingestion dose conversion factor for nuclide i, age group a, organ j, mrem/pCi (Table 6.4).

Uam = meat ingestion rate for age group a, kg/y.

Ffi = transfer factor for nuclide i from cow's feed to meat, d/kg (Table 6.2).

Qf = cow's consumption rate, kg/d.

i = decay constant for nuclide i, s-1 (Table 6.2).

tcb = time for receptor to consume a whole beef, s.

ts = transport time from slaughter to consumer, s.

fp = fraction of time cow spends on pasture, dimensionless.

r = fraction of activity retained on pasture grass, dimensionless.

E = the effective decay constant, due to radioactive decay and weathering, s-1, equal to i + w.

w = weathering decay constant for leaf and plant surfaces, s-1.

tep = time pasture is exposed to deposition, s.

Yp = agricultural productivity by unit area of pasture grass, kg/m2.

Biv = transfer factor for nuclide i from soil to vegetation, pCi/kg (wet weight of vegetation) per pCi/kg (dry soil).

tb = time over which accumulation on the ground is evaluated, s.

P = effective surface density of soil, kg/m2.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 139 of 227 7.8.4 Stored Feed-Beef Ingestion Dose Factors (m2-mrem/y per µCi/s)

(1-exp(-itcb))

RMSi = 106 DFLiaj Uam Ffi Qf exp(-its) fs i tcb (1-exp(-itcsf)) r(1-exp(-Etesf)) Biv(1-exp(-itb))

{ + }

i tcsf Ysf E P i where:

106 = conversion factor, pCi/µCi.

DFLiaj = ingestion dose conversion factor for nuclide i, age group a, organ j, mrem/pCi (Table 6.4).

Uam = meat ingestion rate for age group a, kg/y.

Ffi = transfer factor for nuclide i from cow's feed to meat, d/kg (Table 6.2).

Qf = cow's consumption rate, kg/d.

i = decay constant for nuclide i, s-1 (Table 6.2).

tcb = time for receptor to consume a whole beef, s.

ts = transport time from slaughter to consumer, s.

fs = fraction of time cow spends on stored feed, dimensionless.

tcsf = time between harvest of stored feed and consumption by cow, s.

r = fraction of activity retained on pasture grass, dimensionless.

tesf = time stored feed is exposed to deposition, s.

Ysf = agricultural productivity by unit area of stored feed, kg/m2.

E = the effective decay constant, due to radioactive decay and weathering, s-1, equal to i + w.

w = weathering decay constant for leaf and plant surfaces, s-1.

Biv = transfer factor for nuclide i from soil to vegetation, pCi/kg (wet weight of vegetation) per pCi/kg (dry soil).

tb = time over which accumulation on the ground is evaluated, s.

P = effective surface density of soil, kg/m2.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 140 of 227 7.8.5 Fresh Leafy Vegetable Ingestion Dose Factors (m2-mrem/y per µCi/s) r(1-exp(-Ete)) Biv(1-exp(-itb))

RVFi = 106 DFLiaj exp(-ithc) UFLafL { + }

Yf E P i where:

106 = conversion factor, pCi/µCi.

DFLiaj = ingestion dose conversion factor for nuclide i, age group a, organ j, mrem/pCi (Table 6.4).

i = decay constant for nuclide i, s-1 (Table 6.2).

thc = average time between harvest of vegetables and their consumption and/or storage, s.

UFLa = consumption rate of fresh leafy vegetables by the receptor in age group a, kg/y.

fL = fraction of fresh leafy vegetables grown locally, dimensionless.

r = fraction of deposited activity retained on vegetables, dimensionless.

E = the effective decay constant, due to radioactive decay and weathering, s-1.

= i + w w = decay constant for removal of activity on leaf and plant surfaces by weathering, s-1.

te = exposure time in garden for fresh leafy and/or stored vegetables, s.

Yf = vegetation areal density for fresh leafy vegetables, kg/m2.

Biv = transfer factor for nuclide i from soil to vegetables, pCi/kg (wet weight of vegetation) per pCi/kg (dry soil).

tb = time period over which accumulation on the ground is evaluated, s.

P = effective surface density of soil, kg/m2.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 141 of 227 7.8.6 Stored Vegetable Ingestion Dose Factors (m2-mrem/y per µCi/s)

(1-exp(-itsv))

RVSi = 106 DFLiaj exp(-ithc) USafg i tsv r(1-exp(-Ete)) Biv(1-exp(-itb))

{ + }

Ysv E P i where:

106 = conversion factor, pCi/µCi.

DFLiaj = ingestion dose conversion factor for nuclide i, age group a, organ j, mrem/pCi (Table 6.4).

i = decay constant for nuclide i, s-1 (Table 6.2).

thc = average time between harvest of vegetables and their consumption and/or storage, s.

USa = consumption rate of stored vegetables by the receptor in age group a, kg/y.

fg = fraction of stored vegetables grown locally, dimensionless.

tsv = time between storage of vegetables and their consumption, s.

r = fraction of deposited activity retained on vegetables, dimensionless.

E = the effective decay constant, due to radioactive decay and weathering, s-1.

= i + w w = decay constant for removal of activity on leaf and plant surfaces by weathering, s-1.

te = exposure time in garden for fresh leafy and/or stored vegetables, s.

Ysv = vegetation areal density for stored vegetables, kg/m2.

Biv = transfer factor for nuclide i from soil to vegetables, pCi/kg (wet weight of vegetation) per pCi/kg (dry soil).

tb = time period over which accumulation on the ground is evaluated, s.

P = effective surface density of soil, kg/m2.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 142 of 227 7.8.7 Tritium-Pasture Grass-Cow/Goat-Milk Dose Factor (mrem/y per µCi/m3)

RCTP = 103 106 DFLTaj FmT Qf Uap [0.75(0.5/H)] fp exp(-Ttfm) where:

103 = conversion factor, g/kg.

106 = conversion factor, pCi/µCi.

DFLTaj = ingestion dose conversion factor for tritium for age group a, organ j, mrem/pCi (Table 6.4).

FmT = transfer factor for tritium from animal's feed to milk, d/L (Table 6.2).

Qf = animal's consumption rate, kg/d.

Uap = milk ingestion rate for age group a, L/y.

0.75 = the fraction of total feed that is water.

0.5 = the ratio of the specific activity of the feed grass water to the atmospheric water.

H = absolute humidity of the atmosphere, g/m3.

fp = fraction of time animal spends on pasture, dimensionless.

T = decay constant for tritium, s-1 (Table 6.2).

tfm = transport time from milking to receptor, s.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 143 of 227 7.8.8 Tritium-Stored Feed-Cow/Goat-Milk Dose Factor (mrem/y per µCi/m3)

(1-exp(-Ttcsf))

RCTS = 103 106 DFLTaj FmT Qf Uap [0.75(0.5/H)] fs exp(-Ttfm)

T tcsf where:

103 = conversion factor, g/kg.

106 = conversion factor, pCi/µCi.

DFLTaj = ingestion dose conversion factor for tritium for age group a, organ j, mrem/pCi (Table 6.4).

FmT = transfer factor for tritium from animal's feed to milk, d/L (Table 6.2).

Qf = animal's consumption rate, kg/d.

Uap = milk ingestion rate for age group a, L/y.

0.75 = the fraction of total feed that is water.

0.5 = the ratio of the specific activity of the feed grass water to the atmospheric water.

H = absolute humidity of the atmosphere, g/m3.

fs = fraction of time animal spends on stored feed, dimensionless.

T = decay constant for tritium, s-1 (Table 6.2).

tcsf = time between harvest of stored feed and consumption by animal, s.

tfm = transport time from milking to receptor, s.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 144 of 227 7.8.9 Tritium-Pasture Grass-Beef Dose Factor (mrem/y per µCi/m3)

RMT = 103 106 DFLTaj FfT Qf Uam [0.75(0.5/H)] fp exp(-Tts)

(1-exp(-Ttep)) (1-exp(-Ttcb))

T tep T tcb where:

103 = conversion factor, g/kg.

106 = conversion factor, pCi/µCi.

DFLTaj = ingestion dose conversion factor for tritium for age group a, organ j, mrem/pCi (Table 6.4).

FfT = transfer factor for tritium from cow's feed to meat, d/kg (Table 6.2).

Qf = cow's consumption rate, kg/d.

Uam = meat ingestion rate for age group a, kg/y.

0.75 = the fraction of total feed that is water.

0.5 = the ratio of the specific activity of the feed grass water to the atmospheric water.

H = absolute humidity of the atmosphere, g/m3.

fp = fraction of time cow spends on pasture, dimensionless.

T = decay constant for tritium, s-1 (Table 6.2).

ts = transport time from slaughter to consumer, s.

tep = time pasture is exposed to deposition, s.

tcb = time for receptor to consume a whole beef, s.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 145 of 227 7.8.10 Tritium-Stored Feed-Beef Dose Factor (mrem/y per µCi/m3)

RMTS = 103 106 DFLTaj FfT Qf Uam [0.75(0.5/H)] fs exp(-Tts)

(1-exp(-Ttcsf)) (1-exp(-Ttcb))

T tcsf T tcb where:

103 = conversion factor, g/kg.

106 = conversion factor, pCi/µCi.

DFLTaj = ingestion dose conversion factor for tritium for age group a, organ j, mrem/pCi (Table 6.4).

FfT = transfer factor for tritium from cow's feed to meat, d/kg (Table 6.2).

Qf = cow's consumption rate, kg/d.

Uam = meat ingestion rate for age group a, kg/y.

0.75 = the fraction of total feed that is water.

0.5 = the ratio of the specific activity of the feed grass water to the atmospheric water.

H = absolute humidity of the atmosphere, g/m3.

fs = fraction of time cow spends on stored feed, dimensionless.

T = decay constant for tritium, s-1 (Table 6.2).

ts = transport time from slaughter to consumer, s.

tcsf = time between harvest of stored feed and consumption by animal, s.

tcb = time for receptor to consume a whole beef, s.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 146 of 227 7.8.11 Tritium-Fresh Leafy Vegetable Dose Factor (mrem/y per µCi/m3)

RVTF = 103 106 DFLTaj [0.75(0.5/H)] UFLa fL exp(-Tthc) where:

103 = conversion factor, g/kg.

106 = conversion factor, pCi/µCi.

DFLTaj = ingestion dose conversion factor for tritium for age group a, organ j, mrem/pCi (Table 6.4).

0.75 = the fraction of total vegetation that is water.

0.5 = the ratio of the specific activity of the vegetables water to the atmospheric water.

H = absolute humidity of the atmosphere, g/m3.

UFLa = consumption rate of fresh leafy vegetables by the receptor in age group a, kg/y.

fL = fraction of fresh leafy vegetables grown locally, dimensionless.

T = decay constant for tritium, s-1 (Table 6.2).

thc = time between harvest of vegetables and their consumption and/or storage, s.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 147 of 227 7.8.12 Tritium-Stored Vegetables Dose Factor (mrem/y per µCi/m3)

(1-exp(-Ttsv))

RVTS = 103 106 DFLTaj [0.75(0.5/H)] USafg exp(-Tthc)

T tsv where:

103 = conversion factor, g/kg.

10 6 = conversion factor, pCi/µCi.

DFLTaj = ingestion dose conversion factor for tritium for age group a, organ j, mrem/pCi (Table 6.4).

0.75 = the fraction of total vegetation that is water.

0.5 = the ratio of the specific activity of the vegetation water to the atmospheric water.

H = absolute humidity of the atmosphere, g/m3.

USa = consumption rate of stored vegetables by the receptor in age group a, kg/y.

fg = fraction of stored vegetables grown locally, dimensionless.

T = decay constant for tritium, s-1 (Table 6.2).

tsv = time between harvest of stored vegetables and their consumption and/or storage, s.

thc = time between harvest of vegetables and their storage, s.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 148 of 227 7.8.13 C-14-Pasture Grass-Cow/Goat-Milk Dose Factor (mrem/y per µCi/m3)

RCPC14 = 103 106 DFLC14aj FmC14 Qf Uap [0.11/0.16] fp exp(-C14tfm) where:

103 = conversion factor, g/kg.

106 = conversion factor, pCi/µCi.

DFLC14aj =ingestion dose conversion factor for carbon 14 for age group a, organ j, mrem/pCi (Table 6.4).

FmC14 =transfer factor for carbon 14 from animal's feed to milk, d/L (Table 6.2).

Qf = animal's consumption rate, kg/d.

Uap = milk ingestion rate for age group a, L/y.

0.11 = the fraction of total plant mass that is natural carbon, dimensionless.

0.16 = is equal to the concentration of natural carbon in the atmosphere, in g/m3.

fp = fraction of time animal spends on pasture, dimensionless.

C14 =decay constant for carbon 14, s-1 (Table 6.2).

tfm = transport time from milking to receptor, s.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 149 of 227 7.8.14 C-14-Stored Feed-Cow/Goat-Milk Dose Factor (mrem/y per µCi/m3)

(1-exp(-C14tcsf))

RCSC14 = 103 106 DFLC14aj FmC14 Qf Uap [0.11/0.16] fs C14 tcsf exp(-C14tfm) where:

103 = conversion factor, g/kg.

106 = conversion factor, pCi/µCi.

DFLC14aj =ingestion dose conversion factor for carbon 14 for age group a, organ j, mrem/pCi (Table 6.4).

FmC14 =transfer factor for carbon 14 from animal's feed to milk, d/L (Table 6.2).

Qf = animal's consumption rate, kg/d.

Uap = milk ingestion rate for age group a, L/y.

0.11 = the fraction of total plant mass that is natural carbon, dimensionless.

0.16 = is equal to the concentration of natural carbon in the atmosphere, in g/m3.

fs = fraction of time animal spends on stored feed, dimensionless.

T = decay constant for carbon 14, s-1 (Table 6.2).

tcsf = time between harvest of stored feed and consumption by animal, s.

tfm = transport time from milking to receptor, s.

NOTE:Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 150 of 227 7.8.15 C-14-Pasture Grass-Beef Dose Factor (mrem/y per µCi/m3)

RMC14 = 103 106 DFLC14aj FfC14 Qf Uam [0.11/0.16] fp exp(-C14ts)

(1-exp(-C14tep)) (1-exp(-C14tcb))

C14 tep C14 tcb where:

103 = conversion factor, g/kg.

106 = conversion factor, pCi/µCi.

DFLC14aj =ingestion dose conversion factor for carbon 14 for age group a, organ j, mrem/pCi (Table 6.4).

FfC14 =transfer factor for carbon 14 from cow's feed to meat, d/kg (Table 6.2).

Qf = cow's consumption rate, kg/d.

Uam = meat ingestion rate for age group a, kg/y.

0.11 = the fraction of total plant mass that is natural carbon, dimensionless.

0.16 = is equal to the concentration of natural carbon in the atmosphere, in g/m3.

fp = fraction of time cow spends on pasture, dimensionless.

C14 =decay constant for carbon 14, s-1 (Table 6.2).

ts = transport time from slaughter to consumer, s.

tep = time pasture is exposed to deposition, s.

tcb = time for receptor to consume a whole beef, s.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 151 of 227 7.8.16 C-14-Stored Feed-Beef Dose Factor (mrem/y per µCi/m3)

RMSC14 = 103 106 DFLC14aj FfC14 Qf Uam [0.11/0.16] fs exp(-C14ts)

(1-exp(-C14tcsf)) (1-exp(-C14tcb))

C14 tcsf C14 tcb where:

103 = conversion factor, g/kg.

106 = conversion factor, pCi/µCi.

DFLC14aj =ingestion dose conversion factor for carbon 14 for age group a, organ j, mrem/pCi (Table 6.4).

FfC14 =transfer factor for carbon 14 from cow's feed to meat, d/kg (Table 6.2).

Qf = cow's consumption rate, kg/d.

Uam = meat ingestion rate for age group a, kg/y.

0.11 = the fraction of total plant mass that is natural carbon, dimensionless.

0.16 = is equal to the concentration of natural carbon in the atmosphere, in g/m3.

fs = fraction of time cow spends on stored feed, dimensionless.

C14 =decay constant for carbon 14, s-1 (Table 6.2).

ts = transport time from slaughter to consumer, s.

tcsf = time between harvest of stored feed and consumption by animal, s.

tcb = time for receptor to consume a whole beef, s.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 152 of 227 7.8.17 C-14-Fresh Leafy Vegetable Dose Factor (mrem/y per µCi/m3)

RVFC14 = 103 106 DFLC14aj [0.11/0.16] UFLa fL exp(-C14thc) where:

103 = conversion factor, g/kg.

106 = conversion factor, pCi/µCi.

DFLC14aj =ingestion dose conversion factor for carbon 14 for age group a, organ j, mrem/pCi (Table 6.4).

0.11 = the fraction of total plant mass that is natural carbon, dimensionless.

0.16 = is equal to the concentration of natural carbon in the atmosphere, in g/m3.

UFLa = consumption rate of fresh leafy vegetables by the receptor in age group a, kg/y.

fL = fraction of fresh leafy vegetables grown locally, dimensionless.

C14 =decay constant for carbon 14, s-1 (Table 6.2).

thc = time between harvest of vegetables and their consumption and/or storage, s.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 153 of 227 7.8.18 C-14-Stored Vegetables Dose Factor (mrem/y per µCi/m3)

(1-exp(-C14tsv))

RVSC14 = 103 106 DFLC14aj [0.11/0.16] USafg exp(-C14thc)

C14 tsv where:

103 = conversion factor, g/kg.

106 = conversion factor, pCi/µCi.

DFLC14aj =ingestion dose conversion factor for carbon 14 for age group a, organ j, mrem/pCi (Table 6.4).

0.11 = the fraction of total plant mass that is natural carbon, dimensionless.

0.16 = is equal to the concentration of natural carbon in the atmosphere, in g/m3.

USa = consumption rate of stored vegetables by the receptor in age group a, kg/y.

fg = fraction of stored vegetables grown locally, dimensionless.

C14 =decay constant for carbon 14, s-1 (Table 6.2).

tsv = time between harvest of stored vegetables and their consumption and/or storage, s.

thc = time between harvest of vegetables and their storage, s.

NOTE: Factors defined above which do not reference a table for their numerical values, are listed in Table 6.3.

0-ODCM-001 Revision 0024 Page 154 of 227 7.8.19 Inhalation Dose Factors (mrem/y per µCi/m3)

RIi = DFAiaj BRa 106 where:

DFAiaj = inhalation dose conversion factor for nuclide i, age group a and organ j, mrem/pCi (Table 7.7).

BRa = breathing rate for age group a, m3/y (Table 6.3).

106 = conversion factor, pCi/µCi.

7.8.20 Ground Plane Dose Factors (m2-mrem/y per µCi/s)

RGi = DFGij (1/i) 106 8760 [1 - exp(-itb)]

where:

DFGij = dose conversion factor for standing on contaminated ground for nuclide i and organ j (total body and skin), mrem/h per pCi/m2 (Table 6.6).

i = decay constant of nuclide i, s-1 (Table 6.2).

106 = conversion factor, pCi/µCi.

8760 = conversion factor, h/y.

tb = time period over which the ground accumulation is evaluated, s (Table 6.3).

0-ODCM-001 Revision 0024 Page 155 of 227 7.9 DISPERSION METHODOLOGY Dispersion factors are calculated for radioactive effluent releases using hourly average meteorological data collected onsite.

Meteorological data for ground level releases consist of windspeed and direction measurements at 10m and temperature measurements of 10m and 45 m.

Hourly average meteorological data for the ground level portion of a split level release consist of wind speeds and directions measured at the 10m level and temperature measurements at 10m and 45m. The elevated portion of the split level release uses wind speeds and directions measured at the 46m level and temperature measurements at 45m and 90m.

Hourly average meteorological data for the elevated releases consist of windspeed and directions measured at 93m. Stability class D is assumed to persist during the entire period for elevated releases, except for the dose calculations described in Section 7.7 when all stability classes will be used to evaluate the elevated results.

Meteorological data are expressed as a joint-frequency distribution of wind speed, wind direction, and atmospheric stability for each release level (ground, split and elevated). The joint-frequency distributions which represent the historical meteorological data for the period January 1977 to December 1988 are given in Table 7.3.

The wind speed classes that are used are as follows:

Number Range (m/s) Midpoint (m/s) 1 <O.3 0.13 2 0.3-0.6 0.45 3 0.7-1.5 1.10 4 1.6-2.4 1.99 5 2.5-3.3 2.88 6 3.4-5.5 4.45 7 5.6-8.2 6.91 8 8.3-l0.9 9.59 9 >10.9 10.95

0-ODCM-001 Revision 0024 Page 156 of 227 7.9 DISPERSION METHODOLOGY (continued)

The stability classes that will be used are the standard Pasquill A through G classifications. The stability classes 1-7 will correspond to A=1, B=2, ...,

G=7.

A sector-average dispersion equation consistent with Regulatory Guide 1.111 is used. The dispersion model considers plume depletion (using information from Figure 7.3), and building wake effects.

Terrain effects on dispersion are not considered except for reducing the effective height of an elevated release by the terrain height.

7.9.1 Annual Average Air Concentration

(µCi-y/m3)

Air concentrations of nuclides at downwind locations are calculated using the following equation:

9 7 fjk Qi p i= (2/)1/2 exp(-ix/uj) exp(-he2/2zk2) 106 3.17E-08 (7.16) j=1 k=1 zkuj(2x/n) where:

fjk = joint relative frequency of occurrence of winds in windspeed class j, stability class k, blowing toward this exposure point, expressed as a fraction.

Qi = amount released of radionuclide i, Ci.

p = fraction of radionuclide remaining in plume (Figure 7.3).

zk = vertical dispersion coefficient for stability class k which includes a building wake adjustment,

= (zk2 + cA/)1/2, or = 93 zk, whichever is smaller (for ground level releases).

where:

zk is the vertical dispersion coefficient for stability class k, m (Figure 7.4),

c is a building shape factor (c=0.5),

A is the minimum building cross-sectional area, 2400 m2.

uj = midpoint value of wind speed class interval j, m/s.

x = downwind distance, m.

n = number of sectors, 16.

i = radioactive decay coefficient of radionuclide i, s-1 2x/n = sector width at point of interest, m.

he = effective release height, m. The effective release height is calculated as described in Section 7.9.4.

106 = conversion factor, µCi per Ci.

3.17E-08 = conversion factor, y/s.

0-ODCM-001 Revision 0024 Page 157 of 227 7.9.2 Relative Concentration

/Q (s/m3)

Relative concentrations of nuclides at downwind locations are calculated using the following equation:

9 7 fjk

/Q = (2/)1/2 exp(-he2/2zk2) (7.17) j=1 k=1 zk uj (2x/n) where:

fjk = joint relative frequency of occurrence of winds in windspeed class j, stability class k, blowing toward this exposure point, expressed as a fraction.

zk = vertical dispersion coefficient for stability class k which includes a building wake adjustment,

= (zk2 + cA/)1/2, or = 93 zk, whichever is smaller (for ground level releases).

where:

zk is the vertical dispersion coefficient for stability class k, m (Figure 7.4),

c is a building shape factor (c=0.5),

A is the minimum building cross-sectional area, 2400 m2.

uj = midpoint value of wind speed class interval j, m/s.

x = downwind distance, m.

n = number of sectors, 16.

2x/n = sector width at point of interest, m.

he = effective release height, m. The effective release height is calculated as described in Section 7.9.4.

7.9.3 Relative Deposition D/Q (m-2)

Relative deposition of nuclides at downwind locations is calculated using the following equation:

9 7 fjk DR D/Q = (7.18) j=1 k=1 (2x/n) where:

fk = joint relative frequency of occurrence of winds in windspeed class j and stability class k, blowing toward this exposure point, expressed as a fraction.

DR = relative deposition rate, m-1 (from Figure 7.5). The choice of figures is governed by the effective release height calculation described in Section 7.9.4. A linear interpolation is used for effluent release heights that fall in between the given curves.

x = downwind distance, m.

n = number of sectors, 16.

2x/n = sector width at point of interest, m.

0-ODCM-001 Revision 0024 Page 158 of 227 7.9.4 Effective Release Height For effluents exhausted from release points that are higher than twice the height of adjacent structures (elevated releases) the effective release height is determined by the following equation, consistent with Regulatory Guide 1.111 he = hs + hpr - ht -c where:

c = downwash correction factor for low relative exit velocity,

= 3(1.5-Wo/u)d, where:

Wo = the vertical plume exit velocity, m/s.

u = mean wind speed at 93m, m/s.

d = inside diameter of the release point, m.

NOTE: If c is less than zero, it is set equal to zero.

hpr = plume rise above the release point, m.

hs = physical height of release point, m.

ht = maximum terrain height between release point and receptor location, m.

For effluents released from points less than the height of adjacent structures, a ground level release is assumed (he = 0).

For effluents released from points at the level of or above adjacent structures, but lower than elevated release points, releases are treated as split-level as follows:

Case 1 - elevated if Wo/u 5.

Case 2 - ground level (he = 0) if Wo/u 1.

Case 3 - mixed mode if 1 < wo/u < 5.

where:

u = mean wind speed at 46m, m/s.

Under the split-level dispersion approach, a model that requires two JFDs (one for elevated releases and one for ground level releases) is used.

The summation of the elevated and ground level JFDs account for the total period of record. For Case 3 (mixed-mode), releases are considered to be elevated 100(1-Et) percent of the time and ground level 100 Et percent of the time where the entrainment coefficient, Et, is defined by Et = 2.58 - 1.58(Wo/u) for 1 < Wo/u 1.5 Et = 0.3 - 0.06(Wo/u) for 1.5 < Wo/u 5

0-ODCM-001 Revision 0024 Page 159 of 227 Table 7.1 BFN - OFFSITE RECEPTOR LOCATION DATA Elev.

above Dir./ plant Ground Vent Mixed Vent Elevated Vent Dist. grade /Q D/Q /Q D/Q /Q D/Q (m) (m) (s/m3) (1/m2) (s/m3) (1/m2) (s/m3) (1/m2)

N 1525 7 1.91E-06 5.77E-09 3.88E-07 2.19E-09 4.46E-10 4.99E-10 NNE 1300 4 1.06E-06 2.69E-09 1.65E-07 1.12E-09 3.99E-10 3.17E-10 NE 1250 7 7.13E-07 1.89E-09 1.35E-07 8.90E-10 1.64E-09 3.65E-10 ENE 1450 0 9.08E-07 3.15E-09 1.20E-07 9.36E-10 1.22E-09 3.37E-10 E 1375 0 9.21E-07 3.81E-09 1.50E-07 1.37E-09 8.36E-10 4.25E-10 ESE 1575 0 5.19E-07 3.09E-09 1.25E-07 1.43E-09 4.84E-10 4.78E-10 SE 5600 -6 9.61E-08 3.50E-10 4.30E-08 2.69E-10 5.15E-09 2.14E-10 SSE 2875 -6 5.20E-07 1.57E-09 9.78E-08 7.40E-10 1.13E-09 3.96E-10 S 2250 -6 1.21E-06 2.93E-09 1.54E-07 1.14E-09 4.39E-10 5.11E-10 SSW 2425 -6 1.28E-06 2.88E-09 1.74E-07 1.10E-09 6.10E-10 4.29E-10 SW 2300 -6 8.33E-07 1.71E-09 1.02E-07 5.22E-10 2.55E-10 2.21E-10 WSW 2500 -6 8.17E-07 1.21E-09 7.00E-08 2.15E-10 2.61E-10 1.14E-10 W 2550 -6 8.51E-07 1.43E-09 6.95E-08 2.40E-10 2.63E-10 1.18E-10 WNW 3325 -6 4.14E-07 7.87E-10 1.04E-07 3.33E-10 1.75E-09 2.50E-10 NW 2275 -6 1.90E-06 4.65E-09 3.22E-07 1.53E-09 1.83E-09 6.17E-10 NNW 1650 -6 2.26E-06 5.42E-09 3.63E-07 2.12E-09 8.93E-10 5.54E-10 NW 8500 -6 3.04E-07 4.60E-10 9.90E-08 2.05E-10 8.93E-09 1.37E-10 NOTE: For quarterly dose calculations, doses will also be calculated for all locations identified in the most recent land use census, and for any additional points deemed necessary.

0-ODCM-001 Revision 0024 Page 160 of 227 Table 7.2 EXPECTED ANNUAL ROUTINE ATMOSPHERIC RELEASES FROM ONE UNIT AT BFN Building Vents (Ci/y/Unit) Stack (Ci/y/Unit)

Reactor Radwaste Turbine Gland Complex Building Building Seal and Isotope Vent Vent Vent Offgas MVP Kr-85m 6E+0 < 1 2E+0 1.66E+4 0.0E+0 Kr-85 - - - 6.3E+2 -

Kr-87 6E+0 < 1 9.5E+1 7.47E+2 0.0E+0 Kr-88 9E+0 < 1 1.02E+2 1.35E+4 0.0E+0 Kr-89 1E+0 3.4E+1 5.03E+2 4.10E+3 0.0E+0 Xe-131m - - - 3.09E+2 0.0E+0 Xe-133m 0E+0 6.0E+1 0E+0 8.51E+2 0.0E+0 Xe-133 1.03E+2 2.94E+2 5.81E+2 9.47E+4 3.0E+2 Xe-135m 1.11E+2 6.67E+2 4.64E+2 9.17E+2 0.0E+0 Xe-135 1.73E+2 3.28E+2 6.72E+2 5.99E+2 2.0E+2 Xe-137 7.8E+1 1.13E+2 3.86E+2 5.04E+3 0.0E+0 Xe-138 1.2E+1 2E+0 1.18E+3 3.15E+3 0.0E+0 I-131 I 5.94E-2 5.0E-3 1.56E-2 4.1E-3 8.5E-3 I-132 I 5.94E-1 5.0E-2 1.79E-1 4.69E-2 9.73E-2 I-133 I 2.97E-1 2.5E-2 1.23E-1 3.23E-2 6.71E-2 I-134 I 1.49E+0 1.25E-1 2.67E-2 7.0E-3 1.45E-2 I-135 I 5.94E-1 5.0E-2 1.23E-1 3.23E-2 6.71E-2 I-131 O 3.16E-2 2.9E-2 6.5E-3 3.32E-2 2.74E-1 I-132 O 3.16E-1 2.9E-1 7.44E-2 3.80E-1 3.14E+0 I-133 O 1.58E-1 1.45E-1 5.13E-2 2.62E-1 2.16E+0 I-134 O 7.90E-1 7.25E-1 1.11E-2 5.68E-2 4.69E-1 I-135 O 3.16E-1 2.90E-1 5.13E-2 2.61E-1 2.16E+0 Cr-51 3E-3 9E-4 1E-3 1E-4 0.0E+0 Mn-54 3E-3 5E-3 2E-3 4E-5 0.0E+0 Co-58 2E-3 4E-4 9E-5 2E-5 0.0E+0 Fe-59 1E-4 8E-4 4E-4 2E-4 0.0E+0 Co-60 3E-2 6E-3 3E-3 1E-5 0.0E+0 Zn-65 3E-3 2E-4 4E-4 9E-5 0.0E+0 Sr-89 1E-2 3E-1 *

  • 4E-6 0.0E+0 Ar-41 2.5E+1 0E+0 0E+0 0E+0 0.0E+0 C-14 0E+0 0E+0 0E+0 9.5E+0 0.0E+0 H-3 0E+0 9.5E+0 0E+0 0E+0 0.0E+0
  • Not available.

I denotes nonorganic iodine (elemental, particulate, HIO)

O denotes organic iodine.

0-ODCM-001 Revision 0024 Page 161 of 227 Table 7.3 (1 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Ground Level Releases Stability Class A (Delta-T -1.9 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.0 0.010 0.026 0.281 0.122 0.005 0.0 0.444 NNE 0.0 0.0 0.001 0.009 0.038 0.284 0.109 0.001 0.0 0.443 NE 0.0 0.0 0.001 0.007 0.024 0.075 0.015 0.0 0.0 0.122 ENE 0.0 0.0 0.001 0.003 0.006 0.004 0.0 0.0 0.0 0.014 E 0.0 0.0 0.001 0.004 0.007 0.006 0.0 0.0 0.0 0.018 ESE 0.0 0.0 0.006 0.061 0.093 0.014 0.0 0.0 0.0 0.173 SE 0.0 0.001 0.106 1.205 0.366 0.044 0.0 0.0 0.0 1.721 SSE 0.0 0.0 0.132 0.672 0.115 0.015 0.0 0.0 0.0 0.934 S 0.0 0.0 0.069 0.557 0.112 0.033 0.0 0.0 0.0 0.772 SSW 0.0 0.0 0.018 0.142 0.057 0.011 0.0 0.0 0.0 0.227 SW 0.0 0.0 0.008 0.097 0.042 0.005 0.0 0.0 0.0 0.152 WSW 0.0 0.0 0.0 0.055 0.084 0.050 0.004 0.0 0.0 0.193 W 0.0 0.0 0.001 0.014 0.046 0.065 0.007 0.001 0.0 0.133 WNW 0.0 0.0 0.0 0.020 0.037 0.115 0.067 0.007 0.0 0.246 NW 0.0 0.0 0.0 0.005 0.032 0.191 0.144 0.004 0.0 0.375 NNW 0.0 0.0 0.0 0.007 0.012 0.107 0.102 0.019 0.0 0.245 Sub total 0.0 0.001 0.343 2.865 1.098 1.298 0.570 0.036 0.0 6.211 Total hours of valid stability observations - 103468 Total hours of stability class A - 6379 Total hours of valid wind direction-wind speed-stability class A - 6354 Total hours of valid wind direction-wind speed-stability observations - 102303 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 10.03 and 45.30 meters Wind speed and direction measured at the 10.42 meter level Mean wind speed = 6.81 mph

0-ODCM-001 Revision 0024 Page 162 of 227 Table 7.3 (2 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Ground Level Releases Stability Class B (-1.9 < Delta-T -1.7 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.002 0.021 0.072 0.212 0.044 0.002 0.0 0.353 NNE 0.0 0.0 0.001 0.030 0.093 0.237 0.047 0.0 0.0 0.408 NE 0.0 0.0 0.002 0.024 0.034 0.080 0.007 0.0 0.0 0.148 ENE 0.0 0.0 0.002 0.010 0.008 0.008 0.0 0.0 0.0 0.027 E 0.0 0.0 0.002 0.011 0.007 0.001 0.001 0.0 0.0 0.022 ESE 0.0 0.0 0.013 0.052 0.021 0.011 0.0 0.0 0.0 0.096 SE 0.0 0.0 0.153 0.445 0.053 0.015 0.0 0.0 0.0 0.666 SSE 0.0 0.0 0.130 0.216 0.023 0.012 0.0 0.0 0.0 0.381 S 0.0 0.0 0.072 0.264 0.039 0.012 0.0 0.0 0.0 0.387 SSW 0.0 0.0 0.027 0.104 0.016 0.002 0.002 0.0 0.0 0.151 SW 0.0 0.0 0.013 0.125 0.025 0.007 0.0 0.0 0.0 0.170 WSW 0.0 0.0 0.005 0.088 0.087 0.044 0.008 0.0 0.0 0.232 W 0.0 0.0 0.005 0.024 0.090 0.082 0.016 0.001 0.0 0.218 WNW 0.0 0.0 0.002 0.044 0.075 0.164 0.071 0.018 0.0 0.374 NW 0.0 0.0 0.001 0.014 0.055 0.236 0.087 0.006 0.0 0.398 NNW 0.0 0.0 0.0 0.007 0.036 0.171 0.058 0.003 0.0 0.275 Sub total 0.0 0.0 0.430 1.478 0.734 1.292 0.340 0.029 0.0 4.304 Total hours of valid stability observations - 103468 Total hours of stability class B - 4424 Total hours of valid wind direction-wind speed-stability class B - 4403 Total hours of valid wind direction-wind speed-stability observations - 102303 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 10.03 and 45.30 meters Wind speed and direction measured at the 10.42 meter level Mean wind speed = 7.04 mph

0-ODCM-001 Revision 0024 Page 163 of 227 Table 7.3 (3 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Ground Level Releases Stability Class C (-1.7 < Delta-T -1.5 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.011 0.055 0.122 0.231 0.030 0.002 0.0 0.451 NNE 0.0 0.0 0.008 0.062 0.115 0.202 0.027 0.0 0.0 0.414 NE 0.0 0.0 0.002 0.042 0.080 0.086 0.007 0.0 0.0 0.217 ENE 0.0 0.0 0.004 0.021 0.011 0.011 0.0 0.0 0.0 0.046 E 0.0 0.0 0.004 0.020 0.016 0.003 0.001 0.0 0.0 0.043 ESE 0.0 0.0 0.008 0.048 0.018 0.004 0.0 0.0 0.0 0.077 SE 0.0 0.001 0.213 0.313 0.057 0.013 0.002 0.0 0.0 0.598 SSE 0.0 0.0 0.188 0.166 0.022 0.009 0.0 0.0 0.0 0.385 S 0.0 0.0 0.146 0.232 0.044 0.013 0.0 0.0 0.0 0.434 SSW 0.0 0.0 0.042 0.109 0.014 0.002 0.0 0.0 0.0 0.167 SW 0.0 0.001 0.053 0.143 0.025 0.005 0.001 0.0 0.0 0.228 WSW 0.0 0.0 0.013 0.140 0.079 0.072 0.006 0.001 0.0 0.311 W 0.0 0.0 0.003 0.048 0.103 0.088 0.022 0.004 0.0 0.267 WNW 0.0 0.0 0.009 0.096 0.109 0.197 0.079 0.027 0.0 0.518 NW 0.0 0.0 0.002 0.054 0.108 0.211 0.067 0.004 0.001 0.447 NNW 0.0 0.0 0.003 0.016 0.058 0.182 0.055 0.002 0.0 0.315 Sub total 0.0 0.002 0.707 1.562 0.980 1.328 0.297 0.040 0.001 4.918 Total hours of valid stability observations - 103468 Total hours of stability class C - 5065 Total hours of valid wind direction-wind speed-stability class C - 5031 Total hours of valid wind direction-wind speed-stability observations - 102303 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 10.03 and 45.30 meters Wind speed and direction measured at the 10.42 meter level Mean wind speed = 6.67 mph

0-ODCM-001 Revision 0024 Page 164 of 227 Table 7.3 (4 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Ground Level Releases Stability Class D (-1.5 < Delta-T -0.5 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.016 0.212 0.471 0.584 1.151 0.368 0.029 0.001 2.832 NNE 0.0 0.013 0.227 0.519 0.647 1.156 0.190 0.009 0.0 2.761 NE 0.0 0.014 0.195 0.429 0.446 0.461 0.022 0.0 0.0 1.566 ENE 0.001 0.015 0.247 0.346 0.185 0.106 0.004 0.0 0.0 0.903 E 0.001 0.010 0.264 0.435 0.250 0.125 0.008 0.0 0.0 1.092 ESE 0.001 0.013 0.258 0.437 0.241 0.078 0.001 0.0 0.0 1.029 SE 0.003 0.051 1.498 1.203 0.648 0.294 0.005 0.0 0.0 3.702 SSE 0.003 0.031 1.300 0.823 0.228 0.105 0.004 0.0 0.0 2.493 S 0.002 0.029 1.132 1.031 0.290 0.152 0.016 0.001 0.0 2.653 SSW 0.001 0.030 0.624 0.421 0.097 0.053 0.002 0.0 0.0 1.228 SW 0.001 0.018 0.370 0.339 0.065 0.027 0.003 0.001 0.0 0.825 WSW 0.001 0.015 0.456 0.767 0.380 0.331 0.056 0.001 0.0 2.007 W 0.0 0.006 0.220 0.644 0.697 0.651 0.138 0.016 0.0 2.372 WNW 0.0 0.007 0.140 0.444 0.518 1.008 0.637 0.152 0.009 2.914 NW 0.0 0.008 0.090 0.316 0.436 0.815 0.617 0.093 0.011 2.385 NNW 0.0 0.005 0.134 0.363 0.480 1.196 0.568 0.033 0.001 2.780 Sub total 0.015 0.279 7.365 8.989 6.192 7.710 2.636 0.334 0.022 33.543 Total hours of valid stability observations - 103468 Total hours of stability class D - 34636 Total hours of valid wind direction-wind speed-stability class D - 34315 Total hours of valid wind direction-wind speed-stability observations - 102303 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 10.03 and 45.30 meters Wind speed and direction measured at the 10.42 meter level Mean wind speed = 6.51 mph

0-ODCM-001 Revision 0024 Page 165 of 227 Table 7.3 (5 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Ground Level Releases Stability Class E (-0.5 < Delta-T -1.5 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.005 0.075 0.430 0.529 0.404 0.371 0.062 0.003 0.0 1.879 NNE 0.006 0.084 0.506 0.580 0.497 0.413 0.031 0.002 0.0 2.119 NE 0.006 0.113 0.494 0.491 0.369 0.193 0.009 0.0 0.0 1.674 ENE 0.007 0.109 0.642 0.417 0.160 0.037 0.005 0.001 0.0 1.380 E 0.008 0.071 0.744 0.677 0.174 0.065 0.004 0.0 0.0 1.744 ESE 0.009 0.099 0.821 0.772 0.350 0.121 0.002 0.0 0.0 2.174 SE 0.022 0.268 1.942 1.323 0.679 0.328 0.017 0.0 0.0 4.579 SSE 0.013 0.197 1.120 0.695 0.367 0.251 0.030 0.001 0.0 2.675 S 0.012 0.161 1.016 0.688 0.494 0.559 0.084 0.003 0.0 3.016 SSW 0.007 0.114 0.547 0.221 0.098 0.101 0.005 0.0 0.0 1.093 SW 0.004 0.084 0.292 0.082 0.023 0.013 0.0 0.0 0.0 0.498 WSW 0.007 0.060 0.641 0.514 0.109 0.098 0.019 0.0 0.0 1.448 W 0.005 0.044 0.463 0.676 0.299 0.152 0.016 0.0 0.0 1.656 WNW 0.002 0.025 0.168 0.153 0.133 0.158 0.053 0.004 0.0 0.697 NW 0.002 0.037 0.183 0.259 0.176 0.271 0.080 0.006 0.0 1.014 NNW 0.004 0.060 0.392 0.508 0.459 0.530 0.085 0.004 0.001 2.044 Sub total 0.119 1.603 10.402 8.586 4.791 3.663 0.500 0.023 0.001 29.689 Total hours of valid stability observations - 103468 Total hours of stability class E - 30806 Total hours of valid wind direction-wind speed-stability class E - 30373 Total hours of valid wind direction-wind speed-stability observations - 102303 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 10.03 and 45.30 meters Wind speed and direction measured at the 10.42 meter level Mean wind speed = 4.61 mph

0-ODCM-001 Revision 0024 Page 166 of 227 Table 7.3 (6 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Ground Level Releases Stability Class F (1.5 < Delta-T 4.0 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.012 0.113 0.450 0.449 0.240 0.056 0.0 0.0 0.0 1.319 NNE 0.013 0.144 0.499 0.572 0.324 0.094 0.0 0.0 0.0 1.646 NE 0.009 0.114 0.334 0.238 0.122 0.016 0.0 0.0 0.0 0.833 ENE 0.014 0.121 0.564 0.301 0.038 0.004 0.0 0.0 0.0 1.042 E 0.018 0.052 0.831 0.499 0.014 0.0 0.0 0.0 0.0 1.413 ESE 0.012 0.071 0.536 0.119 0.006 0.004 0.0 0.0 0.0 0.749 SE 0.025 0.209 1.021 0.359 0.146 0.066 0.003 0.001 0.0 1.831 SSE 0.014 0.123 0.573 0.309 0.173 0.184 0.018 0.002 0.0 1.395 S 0.008 0.077 0.315 0.218 0.224 0.223 0.013 0.001 0.0 1.078 SSW 0.003 0.052 0.108 0.027 0.008 0.007 0.0 0.0 0.0 0.205 SW 0.003 0.030 0.110 0.014 0.003 0.001 0.0 0.0 0.0 0.161 WSW 0.003 0.027 0.109 0.038 0.001 0.002 0.0 0.0 0.0 0.181 W 0.003 0.026 0.098 0.062 0.006 0.003 0.0 0.0 0.0 0.197 WNW 0.002 0.028 0.080 0.023 0.007 0.005 0.0 0.0 0.0 0.146 NW 0.003 0.033 0.109 0.042 0.022 0.009 0.0 0.0 0.0 0.218 NNW 0.008 0.072 0.302 0.276 0.164 0.044 0.0 0.0 0.0 0.866 Sub total 0.151 1.295 6.040 3.544 1.497 0.716 0.033 0.004 0.0 13.280 Total hours of valid stability observations - 103468 Total hours of stability class F - 13774 Total hours of valid wind direction-wind speed-stability class F - 13586 Total hours of valid wind direction-wind speed-stability observations - 102303 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 10.03 and 45.30 meters Wind speed and direction measured at the 10.42 meter level Mean wind speed = 3.60 mph

0-ODCM-001 Revision 0024 Page 167 of 227 Table 7.3 (7 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Ground Level Releases Stability Class G (Delta-T > 4.0 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.023 0.178 0.699 0.277 0.043 0.002 0.0 0.0 0.0 1.221 NNE 0.025 0.190 0.752 0.550 0.166 0.012 0.0 0.0 0.0 1.694 NE 0.013 0.118 0.369 0.073 0.021 0.001 0.0 0.0 0.0 0.594 ENE 0.015 0.084 0.492 0.168 0.013 0.001 0.0 0.0 0.0 0.773 E 0.013 0.029 0.471 0.280 0.001 0.0 0.0 0.0 0.0 0.794 ESE 0.004 0.020 0.121 0.005 0.0 0.0 0.0 0.0 0.0 0.149 SE 0.013 0.106 0.373 0.069 0.047 0.010 0.0 0.0 0.0 0.618 SSE 0.015 0.095 0.467 0.326 0.120 0.052 0.0 0.0 0.0 1.075 S 0.005 0.068 0.111 0.128 0.065 0.029 0.0 0.0 0.0 0.407 SSW 0.002 0.036 0.034 0.002 0.0 0.0 0.0 0.0 0.0 0.074 SW 0.001 0.025 0.015 0.003 0.0 0.0 0.0 0.0 0.0 0.044 WSW 0.001 0.012 0.016 0.002 0.0 0.0 0.0 0.0 0.0 0.030 W 0.001 0.012 0.019 0.003 0.0 0.0 0.0 0.0 0.0 0.034 WNW 0.001 0.020 0.028 0.001 0.0 0.0 0.0 0.0 0.0 0.050 NW 0.003 0.039 0.061 0.003 0.0 0.0 0.0 0.0 0.0 0.105 NNW 0.007 0.086 0.200 0.075 0.022 0.001 0.0 0.0 0.0 0.392 Sub total 0.140 1.117 4.228 1.966 0.498 0.108 0.0 0.0 0.0 8.055 Total hours of valid stability observations - 103468 Total hours of stability class G - 8384 Total hours of valid wind direction-wind speed-stability class G - 8241 Total hours of valid wind direction-wind speed-stability observations - 102303 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 10.03 and 45.30 meters Wind speed and direction measured at the 10.42 meter level Mean wind speed = 2.95 mph

0-ODCM-001 Revision 0024 Page 168 of 227 Table 7.3 (8 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Stack Releases Stability Class A (Delta-T -1.9 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 NNE 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 NE 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ENE 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 E 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ESE 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SE 0.0 0.0 0.001 0.0 0.0 0.0 0.0 0.0 0.0 0.001 SSE 0.0 0.0 0.002 0.002 0.0 0.0 0.001 0.0 0.0 0.005 S 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SSW 0.0 0.0 0.0 0.001 0.0 0.0 0.0 0.0 0.0 0.001 SW 0.0 0.0 0.0 0.002 0.003 0.002 0.002 0.0 0.0 0.009 WSW 0.0 0.0 0.002 0.001 0.0 0.0 0.002 0.0 0.001 0.006 W 0.0 0.0 0.0 0.0 0.001 0.001 0.0 0.0 0.0 0.002 WNW 0.0 0.0 0.0 0.0 0.0 0.0 0.001 0.0 0.0 0.001 NW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 NNW 0.0 0.0 0.0 0.0 0.0 0.001 0.0 0.0 0.0 0.001 Sub total 0.0 0.0 0.005 0.006 0.004 0.004 0.006 0.0 0.001 0.026 Total hours of valid stability observations - 103166 Total hours of stability class A - 27 Total hours of valid wind direction-wind speed-stability class A - 26 Total hours of valid wind direction-wind speed-stability observations - 101803 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 45.30 and 89.59 meters Wind speed and direction measured at the 95.63 meter level Mean wind speed = 8.66 mph

0-ODCM-001 Revision 0024 Page 169 of 227 Table 7.3 (9 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Stack Releases Stability Class B (-1.9 < Delta-T -1.7 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 NNE 0.0 0.0 0.0 0.001 0.0 0.001 0.0 0.0 0.0 0.002 NE 0.0 0.0 0.0 0.001 0.0 0.0 0.0 0.0 0.0 0.001 ENE 0.0 0.0 0.001 0.0 0.0 0.002 0.0 0.0 0.0 0.003 E 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ESE 0.0 0.0 0.001 0.003 0.001 0.005 0.004 0.001 0.0 0.015 SE 0.0 0.0 0.008 0.007 0.002 0.002 0.001 0.0 0.0 0.020 SSE 0.0 0.0 0.008 0.005 0.002 0.0 0.0 0.0 0.0 0.015 S 0.0 0.0 0.001 0.002 0.002 0.0 0.0 0.0 0.0 0.005 SSW 0.0 0.0 0.001 0.005 0.001 0.004 0.0 0.0 0.0 0.011 SW 0.0 0.0 0.003 0.016 0.010 0.013 0.007 0.002 0.0 0.050 WSW 0.0 0.0 0.002 0.009 0.004 0.008 0.003 0.0 0.002 0.028 W 0.0 0.0 0.0 0.0 0.004 0.008 0.013 0.004 0.001 0.029 WNW 0.0 0.0 0.0 0.0 0.002 0.002 0.001 0.001 0.0 0.006 NW 0.0 0.0 0.0 0.0 0.000 0.001 0.0 0.0 0.0 0.001 NNW 0.0 0.0 0.0 0.0 0.000 0.0 0.0 0.0 0.0 0.0 Sub total 0.0 0.0 0.025 0.048 0.028 0.045 0.028 0.008 0.003 0.185 Total hours of valid stability observations - 103166 Total hours of stability class B - 190 Total hours of valid wind direction-wind speed-stability class B - 188 Total hours of valid wind direction-wind speed-stability observations - 101803 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 45.30 and 89.59 meters Wind speed and direction measured at the 92.63 meter level Mean wind speed = 8.57 mph

0-ODCM-001 Revision 0024 Page 170 of 227 Table 7.3 (10 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Stack Releases Stability Class C (-1.7 < Delta-T -1.5 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.0 0.0 0.0 0.0 0.001 0.001 0.0 0.002 NNE 0.0 0.0 0.0 0.0 0.002 0.0 0.002 0.001 0.0 0.005 NE 0.0 0.0 0.0 0.0 0.001 0.002 0.0 0.0 0.0 0.003 ENE 0.0 0.0 0.001 0.001 0.0 0.003 0.004 0.0 0.0 0.009 E 0.0 0.0 0.0 0.002 0.002 0.003 0.0 0.0 0.001 0.008 ESE 0.0 0.0 0.003 0.009 0.008 0.020 0.013 0.003 0.001 0.056 SE 0.0 0.0 0.018 0.056 0.022 0.015 0.004 0.0 0.0 0.114 SSE 0.0 0.001 0.018 0.027 0.010 0.005 0.0 0.0 0.0 0.060 S 0.0 0.0 0.011 0.013 0.007 0.002 0.0 0.0 0.0 0.032 SSW 0.0 0.0 0.010 0.008 0.004 0.011 0.002 0.0 0.0 0.034 SW 0.0 0.0 0.019 0.045 0.028 0.038 0.019 0.003 0.0 0.152 WSW 0.0 0.0 0.010 0.037 0.033 0.038 0.021 0.005 0.001 0.145 W 0.0 0.0 0.002 0.014 0.022 0.058 0.034 0.011 0.014 0.154 WNW 0.0 0.0 0.002 0.0 0.011 0.035 0.031 0.010 0.005 0.094 NW 0.0 0.0 0.0 0.001 0.001 0.001 0.017 0.001 0.001 0.022 NNW 0.0 0.0 0.0 0.0 0.0 0.001 0.001 0.0 0.0 0.002 Sub total 0.0 0.001 0.092 0.212 0.150 0.232 0.148 0.034 0.023 0.893 Total hours of valid stability observations - 103166 Total hours of stability class C - 916 Total hours of valid wind direction-wind speed-stability class C - 909 Total hours of valid wind direction-wind speed-stability observations - 101803 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 45.30 and 89.59 meters Wind speed and direction measured at the 92.63 meter level Mean wind speed = 8.90 mph

0-ODCM-001 Revision 0024 Page 171 of 227 Table 7.3 (11 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Stack Releases Stability Class D (-1.5 < Delta-T 0.5 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.001 0.010 0.100 0.270 0.468 1.721 1.698 0.468 0.062 4.797 NNE 0.001 0.020 0.098 0.258 0.455 1.685 1.334 0.211 0.020 4.081 NE 0.0 0.010 0.070 0.203 0.364 0.952 0.438 0.035 0.006 2.079 ENE 0.001 0.009 0.088 0.194 0.221 0.396 0.134 0.023 0.009 1.074 E 0.001 0.009 0.122 0.202 0.206 0.339 0.190 0.042 0.013 1.123 ESE 0.001 0.009 0.173 0.336 0.374 0.844 0.691 0.239 0.058 2.724 SE 0.001 0.015 0.265 0.729 0.712 1.364 1.288 0.804 0.337 5.516 SSE 0.002 0.018 0.319 0.581 0.568 1.442 1.293 0.551 0.249 5.021 S 0.001 0.009 0.277 0.491 0.463 1.321 1.336 0.738 0.300 4.936 SSW 0.001 0.015 0.222 0.348 0.344 0.935 0.914 0.423 0.166 3.368 SW 0.001 0.013 0.254 0.453 0.340 0.760 0.712 0.219 0.091 2.844 WSW 0.001 0.009 0.194 0.556 0.397 0.641 0.541 0.246 0.093 2.679 W 0.001 0.008 0.129 0.525 0.630 1.103 0.759 0.316 0.173 3.643 WNW 0.001 0.004 0.108 0.262 0.497 1.481 1.124 0.608 0.260 4.345 NW 0.001 0.012 0.121 0.298 0.458 1.244 1.380 0.842 0.219 4.573 NNW 0.001 0.010 0.098 0.201 0.312 1.184 1.467 0.534 0.117 3.924 Sub total 0.015 0.177 2.639 5.907 6.808 17.412 15.297 6.299 2.172 56.727 Total hours of valid stability observations - 103166 Total hours of stability class D - 58662 Total hours of valid wind direction-wind speed-stability class D - 57750 Total hours of valid wind direction-wind speed-stability observations - 101803 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 45.30 and 89.59 meters Wind speed and direction measured at the 92.63 meter level Mean wind speed = 11.90 mph

0-ODCM-001 Revision 0024 Page 172 of 227 Table 7.3 (12 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Stack Releases Stability Class E (0.5 < Delta-T 1.5 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.001 0.013 0.066 0.099 0.149 0.537 0.735 0.139 0.005 1.744 NNE 0.001 0.007 0.061 0.080 0.134 0.614 0.836 0.202 0.002 1.936 NE 0.002 0.011 0.075 0.107 0.161 0.640 0.686 0.176 0.001 1.858 ENE 0.001 0.006 0.063 0.103 0.122 0.443 0.328 0.071 0.005 1.142 E 0.002 0.010 0.097 0.162 0.199 0.461 0.173 0.026 0.003 1.133 ESE 0.003 0.014 0.129 0.179 0.252 0.671 0.696 0.173 0.027 2.143 SE 0.003 0.009 0.152 0.381 0.429 1.259 1.286 0.609 0.282 4.411 SSE 0.003 0.019 0.150 0.369 0.465 1.114 1.080 0.550 0.256 4.006 S 0.003 0.015 0.143 0.293 0.365 0.927 0.975 0.369 0.108 3.199 SSW 0.002 0.014 0.116 0.155 0.188 0.595 0.712 0.215 0.024 2.021 SW 0.002 0.008 0.083 0.139 0.193 0.606 0.631 0.117 0.022 1.799 WSW 0.002 0.006 0.086 0.135 0.169 0.493 0.359 0.047 0.014 1.310 W 0.001 0.007 0.071 0.132 0.190 0.469 0.271 0.041 0.003 1.184 WNW 0.002 0.013 0.079 0.143 0.184 0.474 0.206 0.033 0.002 1.136 NW 0.002 0.012 0.084 0.159 0.162 0.378 0.282 0.089 0.004 1.173 NNW 0.002 0.009 0.079 0.099 0.165 0.372 0.443 0.092 0.001 1.202 Sub total 0.032 0.170 1.533 2.736 3.466 10.055 9.698 2.950 0.757 31.398 Total hours of valid stability observations - 103166 Total hours of stability class E - 32314 Total hours of valid wind direction-wind speed-stability class E - 31964 Total hours of valid wind direction-wind speed-stability observations - 101803 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 45.30 and 89.59 meters Wind speed and direction measured at the 92.63 meter level Mean wind speed = 11.74 mph

0-ODCM-001 Revision 0024 Page 173 of 227 Table 7.3 (13 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Stack Releases Stability Class F (1.5 < Delta-T 4.0 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.001 0.004 0.010 0.026 0.032 0.099 0.181 0.063 0.0 0.415 NNE 0.001 0.003 0.014 0.024 0.019 0.129 0.342 0.181 0.0 0.711 NE 0.001 0.001 0.024 0.029 0.033 0.173 0.346 0.215 0.001 0.823 ENE 0.001 0.002 0.015 0.031 0.045 0.188 0.277 0.097 0.0 0.656 E 0.002 0.003 0.034 0.051 0.086 0.220 0.116 0.003 0.001 0.516 ESE 0.002 0.003 0.038 0.073 0.121 0.341 0.274 0.030 0.001 0.883 SE 0.001 0.006 0.027 0.059 0.121 0.353 0.357 0.031 0.004 0.958 SSE 0.001 0.0 0.028 0.045 0.078 0.287 0.225 0.022 0.001 0.687 S 0.001 0.003 0.030 0.051 0.075 0.194 0.225 0.028 0.0 0.607 SSW 0.001 0.001 0.021 0.042 0.052 0.168 0.212 0.062 0.0 0.559 SW 0.001 0.004 0.026 0.029 0.046 0.168 0.191 0.033 0.0 0.498 WSW 0.001 0.002 0.016 0.031 0.050 0.139 0.144 0.002 0.0 0.386 W 0.001 0.009 0.012 0.047 0.036 0.096 0.042 0.002 0.0 0.245 WNW 0.001 0.002 0.013 0.033 0.038 0.070 0.033 0.0 0.0 0.190 NW 0.001 0.005 0.024 0.039 0.030 0.052 0.016 0.003 0.0 0.170 NNW 0.001 0.004 0.029 0.021 0.025 0.057 0.053 0.018 0.0 0.208 Sub total 0.017 0.051 0.360 0.633 0.888 2.733 3.033 0.791 0.008 8.513 Total hours of valid stability observations - 103166 Total hours of stability class F - 8738 Total hours of valid wind direction-wind speed-stability class F - 8666 Total hours of valid wind direction-wind speed-stability observations - 101803 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 45.30 and 89.59 meters Wind speed and direction measured at the 92.63 meter level Mean wind speed = 11.66 mph

0-ODCM-001 Revision 0024 Page 174 of 227 Table 7.3 (14 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Stack Releases Stability Class G (Delta-T > 4.0 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.005 0.004 0.003 0.004 0.021 0.038 0.006 0.0 0.081 NNE 0.0 0.0 0.002 0.002 0.005 0.041 0.087 0.029 0.002 0.169 NE 0.0 0.001 0.010 0.009 0.007 0.062 0.119 0.061 0.003 0.271 ENE 0.0 0.003 0.006 0.009 0.009 0.060 0.088 0.020 0.001 0.196 E 0.0 0.002 0.011 0.007 0.018 0.089 0.035 0.004 0.0 0.166 ESE 0.0 0.0 0.009 0.024 0.028 0.062 0.055 0.005 0.0 0.183 SE 0.0 0.002 0.013 0.026 0.043 0.118 0.045 0.006 0.0 0.253 SSE 0.0 0.001 0.010 0.020 0.027 0.114 0.082 0.001 0.0 0.254 S 0.0 0.0 0.010 0.019 0.037 0.077 0.038 0.001 0.0 0.182 SSW 0.0 0.0 0.006 0.015 0.021 0.049 0.040 0.005 0.0 0.136 SW 0.0 0.001 0.011 0.013 0.028 0.028 0.052 0.014 0.0 0.148 WSW 0.0 0.001 0.009 0.013 0.008 0.020 0.024 0.002 0.0 0.076 W 0.0 0.0 0.006 0.011 0.008 0.005 0.004 0.0 0.0 0.034 WNW 0.0 0.001 0.013 0.009 0.008 0.005 0.001 0.0 0.0 0.037 NW 0.0 0.001 0.010 0.012 0.009 0.002 0.0 0.0 0.0 0.034 NNW 0.0 0.003 0.008 0.009 0.006 0.006 0.009 0.001 0.0 0.042 Sub total 0.0 0.021 0.136 0.197 0.265 0.758 0.718 0.154 0.006 2.259 Total hours of valid stability observations - 103166 Total hours of stability class G - 2319 Total hours of valid wind direction-wind speed-stability class G - 2300 Total hours of valid wind direction-wind speed-stability observations - 101803 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 45.30 and 89.59 meters Wind speed and direction measured at the 92.63 meter level Mean wind speed = 10.93 mph

0-ODCM-001 Revision 0024 Page 175 of 227 Table 7.3 (15 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Split Level Releases - Ground Level Portion Stability Class A (Delta-T -1.9 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.0 0.0 0.002 0.045 0.028 0.004 0.0 0.078 NNE 0.0 0.0 0.0 0.0 0.003 0.044 0.025 0.001 0.0 0.073 NE 0.0 0.0 0.0 0.0 0.002 0.011 0.003 0.0 0.0 0.016 ENE 0.0 0.0 0.0 0.0 0.001 0.001 0.0 0.0 0.0 0.001 E 0.0 0.0 0.0 0.0 0.001 0.001 0.0 0.0 0.0 0.002 ESE 0.0 0.0 0.0 0.003 0.011 0.002 0.0 0.0 0.0 0.017 SE 0.0 0.0 0.001 0.053 0.044 0.009 0.0 0.0 0.0 0.107 SSE 0.0 0.0 0.004 0.046 0.021 0.008 0.0 0.0 0.0 0.078 S 0.0 0.0 0.002 0.033 0.021 0.012 0.0 0.0 0.0 0.068 SSW 0.0 0.0 0.0 0.010 0.009 0.004 0.0 0.0 0.0 0.023 SW 0.0 0.0 0.0 0.003 0.003 0.001 0.0 0.0 0.0 0.007 WSW 0.0 0.0 0.0 0.003 0.010 0.010 0.002 0.0 0.0 0.025 W 0.0 0.0 0.0 0.0 0.004 0.010 0.002 0.001 0.0 0.016 WNW 0.0 0.0 0.0 0.0 0.003 0.017 0.016 0.005 0.0 0.040 NW 0.0 0.0 0.0 0.0 0.002 0.028 0.035 0.002 0.0 0.067 NNW 0.0 0.0 0.0 0.0 0.001 0.017 0.027 0.016 0.0 0.060 Sub total 0.0 0.0 0.008 0.151 0.137 0.218 0.138 0.028 0.0 0.680 Total hours of valid observations - 101961 Total hours of ground level release - 10832.031 Total hours of stability class A - 718.45 Total hours of ground level stability class A - 693.58 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 10.03 and 45.30 meters Wind direction measured at 10.42 meter level Wind speed measured at 10.42 meter level Effluent velocity - 12.60 m/s

0-ODCM-001 Revision 0024 Page 176 of 227 Table 7.3 (16 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Split Level Releases - Ground Level Portion Stability Class B (-1.9 < Delta-T -1.7 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.0 0.0 0.006 0.030 0.010 0.002 0.0 0.048 NNE 0.0 0.0 0.0 0.0 0.007 0.035 0.011 0.0 0.0 0.053 NE 0.0 0.0 0.0 0.0 0.003 0.011 0.002 0.0 0.0 0.016 ENE 0.0 0.0 0.0 0.0 0.001 0.001 0.0 0.0 0.0 0.002 E 0.0 0.0 0.0 0.0 0.001 0.0 0.001 0.0 0.0 0.002 ESE 0.0 0.0 0.0 0.002 0.002 0.002 0.0 0.0 0.0 0.006 SE 0.0 0.0 0.001 0.014 0.007 0.003 0.0 0.0 0.0 0.025 SSE 0.0 0.0 0.001 0.012 0.006 0.008 0.0 0.0 0.0 0.026 S 0.0 0.0 0.001 0.012 0.008 0.004 0.0 0.0 0.0 0.025 SSW 0.0 0.0 0.0 0.006 0.003 0.001 0.002 0.0 0.0 0.012 SW 0.0 0.0 0.0 0.002 0.002 0.002 0.0 0.0 0.0 0.005 WSW 0.0 0.0 0.0 0.004 0.009 0.009 0.003 0.0 0.0 0.024 W 0.0 0.0 0.0 0.0 0.007 0.011 0.006 0.001 0.0 0.025 WNW 0.0 0.0 0.0 0.0 0.005 0.023 0.018 0.013 0.0 0.058 NW 0.0 0.0 0.0 0.0 0.004 0.033 0.021 0.004 0.0 0.062 NNW 0.0 0.0 0.0 0.0 0.002 0.026 0.015 0.002 0.0 0.045 Sub total 0.0 0.0 0.003 0.052 0.072 0.198 0.088 0.022 0.0 0.435 Total hours of valid observations - 101961 Total hours of ground level release - 10832.031 Total hours of stability class B - 618.82 Total hours of ground level stability class B - 443.89 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 10.03 and 45.30 meters Wind direction measured at 10.42 meter level Wind speed measured at 10.42 meter level Effluent velocity - 12.60 m/s

0-ODCM-001 Revision 0024 Page 177 of 227 Table 7.3 (17 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Split Level Releases - Ground Level Portion Stability Class C (-1.7 < Delta-T -1.5 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.0 0.0 0.009 0.033 0.007 0.001 0.0 0.050 NNE 0.0 0.0 0.0 0.001 0.008 0.028 0.006 0.0 0.0 0.043 NE 0.0 0.0 0.0 0.0 0.006 0.011 0.001 0.0 0.0 0.019 ENE 0.0 0.0 0.0 0.0 0.001 0.002 0.0 0.0 0.0 0.003 E 0.0 0.0 0.0 0.0 0.001 0.001 0.001 0.0 0.0 0.003 ESE 0.0 0.0 0.0 0.002 0.002 0.001 0.0 0.0 0.0 0.005 SE 0.0 0.0 0.002 0.012 0.009 0.004 0.001 0.0 0.0 0.028 SSE 0.0 0.0 0.003 0.007 0.005 0.006 0.0 0.0 0.0 0.021 S 0.0 0.0 0.001 0.012 0.009 0.004 0.0 0.0 0.0 0.026 SSW 0.0 0.0 0.0 0.007 0.002 0.001 0.0 0.0 0.0 0.011 SW 0.0 0.0 0.0 0.002 0.002 0.001 0.001 0.0 0.0 0.006 WSW 0.0 0.0 0.0 0.004 0.009 0.013 0.003 0.001 0.0 0.030 W 0.0 0.0 0.0 0.0 0.008 0.013 0.008 0.004 0.0 0.032 WNW 0.0 0.0 0.0 0.0 0.006 0.028 0.018 0.020 0.0 0.072 NW 0.0 0.0 0.0 0.0 0.007 0.029 0.017 0.002 0.001 0.056 NNW 0.0 0.0 0.0 0.0 0.004 0.026 0.014 0.002 0.0 0.046 Sub total 0.0 0.0 0.006 0.049 0.089 0.201 0.076 0.030 0.001 0.452 Total hours of valid observations - 101961 Total hours of ground level release - 10832.031 Total hours of stability class C - 1307.02 Total hours of ground level stability class C - 460.54 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 10.03 and 45.30 meters Wind direction measured at 10.42 meter level Wind speed measured at 10.42 meter level Effluent velocity - 12.60 m/s

0-ODCM-001 Revision 0024 Page 178 of 227 Table 7.3 (18 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Split Level Release - Ground Level Portion Stability Class D (-1.5 < Delta-T -0.5 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.0 0.009 0.050 0.182 0.098 0.023 0.001 0.362 NNE 0.0 0.0 0.0 0.010 0.057 0.178 0.046 0.007 0.0 0.297 NE 0.0 0.0 0.0 0.008 0.038 0.068 0.005 0.0 0.0 0.119 ENE 0.0 0.0 0.0 0.011 0.018 0.016 0.001 0.0 0.0 0.047 E 0.0 0.0 0.001 0.022 0.031 0.022 0.003 0.0 0.0 0.078 ESE 0.0 0.0 0.002 0.028 0.032 0.014 0.0 0.0 0.0 0.075 SE 0.0 0.0 0.027 0.117 0.114 0.082 0.004 0.0 0.0 0.344 SSE 0.0 0.0 0.035 0.091 0.052 0.061 0.004 0.0 0.0 0.244 S 0.0 0.0 0.034 0.097 0.059 0.064 0.014 0.001 0.0 0.269 SSW 0.0 0.0 0.014 0.042 0.018 0.026 0.002 0.0 0.0 0.102 SW 0.0 0.0 0.003 0.010 0.005 0.007 0.002 0.001 0.0 0.028 WSW 0.0 0.0 0.004 0.036 0.049 0.065 0.028 0.001 0.0 0.183 W 0.0 0.0 0.001 0.023 0.070 0.103 0.053 0.014 0.0 0.263 WNW 0.0 0.0 0.0 0.003 0.036 0.154 0.164 0.107 0.009 0.472 NW 0.0 0.0 0.0 0.003 0.033 0.126 0.173 0.073 0.011 0.418 NNW 0.0 0.0 0.0 0.007 0.041 0.196 0.157 0.027 0.001 0.428 Sub total 0.0 0.0 0.122 0.517 0.701 1.363 0.753 0.253 0.022 3.732 Total hours of valid observations - 101961 Total hours of ground level release - 10832.031 Total hours of stability class D - 54573.199 Total hours of ground level stability class D - 3804.72 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 10.03 and 45.30 meters Wind direction measured at 10.42 meter level Effluent velocity - 12.60 m/s

0-ODCM-001 Revision 0024 Page 179 of 227 Table 7.3 (19 of 28)

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Split Level Releases - Ground Level Portion Stability Class E (0.5 < Delta-T 1.5 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.005 0.040 0.054 0.064 0.021 0.002 0.0 0.185 NNE 0.0 0.0 0.008 0.048 0.068 0.071 0.010 0.001 0.0 0.206 NE 0.0 0.001 0.008 0.044 0.051 0.033 0.003 0.0 0.0 0.140 ENE 0.0 0.001 0.014 0.037 0.023 0.007 0.003 0.001 0.0 0.087 E 0.0 0.0 0.015 0.060 0.024 0.012 0.001 0.0 0.0 0.113 ESE 0.0 0.001 0.021 0.068 0.049 0.022 0.001 0.0 0.0 0.162 SE 0.0 0.004 0.094 0.167 0.122 0.107 0.014 0.0 0.0 0.507 SSE 0.0 0.002 0.070 0.111 0.106 0.164 0.030 0.001 0.0 0.485 S 0.0 0.003 0.068 0.100 0.112 0.281 0.077 0.003 0.0 0.643 SSW 0.0 0.001 0.027 0.033 0.020 0.050 0.005 0.0 0.0 0.135 SW 0.0 0.0 0.007 0.008 0.004 0.006 0.0 0.0 0.0 0.025 WSW 0.0 0.0 0.016 0.043 0.016 0.023 0.013 0.0 0.0 0.111 W 0.0 0.0 0.009 0.049 0.038 0.027 0.006 0.0 0.0 0.129 WNW 0.0 0.0 0.001 0.008 0.015 0.026 0.015 0.003 0.0 0.069 NW 0.0 0.0 0.001 0.015 0.021 0.046 0.025 0.005 0.0 0.112 NNW 0.0 0.0 0.004 0.035 0.059 0.092 0.024 0.004 0.001 0.219 Sub total 0.0 0.014 0.368 0.865 0.784 1.029 0.248 0.020 0.001 3.328 Total hours of valid observations - 101961 Total hours of ground level release - 10832.031 Total hours of stability class E - 32478.371 Total hours of ground level stability class E - 3393.06 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T between 10.03 and 45.30 meters Wind direction measured at 10.42 meter level Wind speed measured at 10.42 meter level Effluent velocity = 12.60 m/s

0-ODCM-001 Revision 0024 Page 180 of 227 Table 7.3 (20 of 28)

SPLINT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Split Level Releases - Ground Level Portion Stability Class F (1.5 < Delta-T 4.0 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.014 0.051 0.038 0.010 0.0 0.0 0.0 0.112 NNE 0.0 0.001 0.016 0.068 0.051 0.017 0.0 0.0 0.0 0.152 NE 0.0 0.002 0.012 0.030 0.020 0.003 0.0 0.0 0.0 0.066 ENE 0.0 0.004 0.018 0.031 0.006 0.001 0.0 0.0 0.0 0.061 E 0.0 0.001 0.017 0.034 0.002 0.0 0.0 0.0 0.0 0.054 ESE 0.0 0.002 0.019 0.010 0.001 0.001 0.0 0.0 0.0 0.032 SE 0.0 0.005 0.064 0.052 0.030 0.036 0.002 0.001 0.0 0.191 SSE 0.0 0.005 0.050 0.056 0.060 0.138 0.017 0.002 0.0 0.328 S 0.0 0.003 0.028 0.035 0.054 0.121 0.013 0.001 0.0 0.255 SSW 0.0 0.002 0.007 0.005 0.002 0.003 0.0 0.0 0.0 0.019 SW 0.0 0.001 0.004 0.001 0.001 0.0 0.0 0.0 0.0 0.007 WSW 0.0 0.0 0.004 0.003 0.0 0.0 0.0 0.0 0.0 0.008 W 0.0 0.0 0.003 0.006 0.001 0.001 0.0 0.0 0.0 0.010 WNW 0.0 0.0 0.002 0.002 0.001 0.001 0.0 0.0 0.0 0.006 NW 0.0 0.0 0.002 0.004 0.003 0.002 0.0 0.0 0.0 0.010 NNW 0.0 0.0 0.007 0.031 0.025 0.008 0.0 0.0 0.0 0.071 Sub total 0.0 0.027 0.265 0.418 0.296 0.340 0.032 0.004 0.0 1.383 Total hours of valid observations - 101961 Total hours of ground level release - 10832.031 Total hours of stability class F - 9482 Total hours of ground level stability class F - 1410.51 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T measured between 10.03 and 45.30 meters Wind speed measured at 10.42 meter level Effluent velocity = 12.60 m/s

0-ODCM-001 Revision 0024 Page 181 of 227 Table 7.3 (21 of 28)

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Split Level Releases - Ground Level Portion Stability Class G (Delta-T > 4.0 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.020 0.034 0.007 0.0 0.0 0.0 0.0 0.062 NNE 0.0 0.001 0.022 0.071 0.028 0.002 0.0 0.0 0.0 0.123 NE 0.0 0.001 0.009 0.010 0.004 0.0 0.0 0.0 0.0 0.023 ENE 0.0 0.002 0.008 0.011 0.002 0.0 0.0 0.0 0.0 0.024 E 0.0 0.0 0.009 0.007 0.0 0.0 0.0 0.0 0.0 0.016 ESE 0.0 0.0 0.006 0.0 0.0 0.0 0.0 0.0 0.0 0.006 SE 0.0 0.004 0.027 0.012 0.013 0.007 0.0 0.0 0.0 0.062 SSE 0.0 0.003 0.053 0.065 0.044 0.041 0.0 0.0 0.0 0.206 S 0.0 0.002 0.011 0.022 0.016 0.016 0.0 0.0 0.0 0.067 SSW 0.0 0.001 0.001 0.0 0.0 0.0 0.0 0.0 0.0 0.002 SW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.001 WSW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.001 W 0.0 0.0 0.001 0.0 0.0 0.0 0.0 0.0 0.0 0.001 WNW 0.0 0.0 0.001 0.0 0.0 0.0 0.0 0.0 0.0 0.001 NW 0.0 0.0 0.002 0.0 0.0 0.0 0.0 0.0 0.0 0.002 NNW 0.0 0.0 0.005 0.009 0.003 0.0 0.0 0.0 0.0 0.017 Sub total 0.0 0.014 0.174 0.242 0.116 0.066 0.0 0.0 0.0 0.614 Total hours of valid observations - 101961 Total hours of ground level release - 10832.031 Total hours of stability class G - 2783.14 Total hours of ground level stability class G - 625.73 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T between 10.03 and 45.30 meters Wind speed and direction measured at the 10.42 meter level Effluent velocity = 12.60 m/s

0-ODCM-001 Revision 0024 Page 182 of 227 Table 7.3 (22 of 28)

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Split Level Releases - Elevated Portion Stability Class A (Delta-T -1.9 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 NNE 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 NE 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ENE 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 E 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ESE 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SE 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SSE 0.0 0.0 0.003 0.002 0.0 0.0 0.001 0.0 0.0 0.006 S 0.0 0.0 0.002 0.0 0.0 0.0 0.0 0.0 0.0 0.002 SSW 0.0 0.0 0.002 0.001 0.002 0.0 0.0 0.0 0.0 0.005 SW 0.0 0.0 0.0 0.003 0.002 0.002 0.001 0.0 0.0 0.007 WSW 0.0 0.0 0.0 0.001 0.001 0.002 0.0 0.0 0.0 0.004 W 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 WNW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 NW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 NNW 0.0 0.0 0.0 0.0 0.0 0.001 0.0 0.0 0.0 0.001 Sub total 0.0 0.0 0.007 0.007 0.005 0.004 0.002 0.0 0.0 0.024 Total hours of valid observations - 101961 Total hours of elevated releases - 91128.969 Total hours of stability class A - 718.45 Total hours of elevated stability class A - 24.87 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T between 45.30 and 89.60 meters Wind direction measured at 45.67 meter level Wind speed measured at 45.67 meter level Effluent velocity = 12.60 m/s

0-ODCM-001 Revision 0024 Page 183 of 227 Table 7.3 (23 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Split Level Releases - Elevated Portion Stability Class B (-1.9 < Delta-T -1.7 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 NNE 0.0 0.0 0.0 0.001 0.0 0.2 0.0 0.0 0.0 0.001 NE 0.0 0.0 0.0 0.001 0.0 0.0 0.0 0.0 0.0 0.001 ENE 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 E 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ESE 0.0 0.0 0.0 0.001 0.002 0.004 0.001 0.0 0.0 0.008 SE 0.0 0.0 0.010 0.008 0.0 0.004 0.0 0.0 0.0 0.021 SSE 0.0 0.0 0.007 0.009 0.001 0.0 0.0 0.0 0.0 0.017 S 0.0 0.0 0.005 0.008 0.004 0.0 0.0 0.0 0.0 0.017 SSW 0.0 0.0 0.004 0.010 0.005 0.009 0.001 0.0 0.0 0.028 SW 0.0 0.0 0.0 0.022 0.007 0.007 0.001 0.0 0.0 0.036 WSW 0.0 0.0 0.0 0.002 0.006 0.009 0.001 0.0 0.0 0.018 W 0.0 0.0 0.0 0.0 0.006 0.007 0.006 0.002 0.0 0.020 WNW 0.0 0.0 0.0 0.001 0.0 0.002 0.002 0.0 0.0 0.004 NW 0.0 0.0 0.0 0.0 0.0 0.001 0.0 0.0 0.0 0.001 NNW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Sub total 0.0 0.0 0.025 0.062 0.029 0.042 0.010 0.002 0.0 0.172 Total hours of valid observations - 101961 Total hours of elevated releases - 91128.969 Total hours of stability class B - 618.82 Total hours of elevated stability class B - 174.930 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T between 45.30 and 89.60 meters Wind direction measured at 45.67 meter level Wind speed measured at 45.67 meter level Effluent velocity = 12.60 m/s

0-ODCM-001 Revision 0024 Page 184 of 227 Table 7.3 (24 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Split Level Releases - Elevated Portion Stability Class C (-1.7 < Delta-T -1.5 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.0 0.0 0.0 0.001 0.0 0.0 0.0 0.001 NNE 0.0 0.0 0.0 0.0 0.003 0.003 0.001 0.001 0.0 0.007 NE 0.0 0.0 0.0 0.0 0.0 0.001 0.0 0.0 0.0 0.001 ENE 0.0 0.0 0.0 0.0 0.0 0.003 0.002 0.0 0.0 0.005 E 0.0 0.0 0.0 0.002 0.004 0.003 0.0 0.0 0.0 0.008 ESE 0.0 0.0 0.0 0.007 0.008 0.012 0.002 0.0 0.0 0.029 SE 0.0 0.0 0.030 0.063 0.010 0.011 0.001 0.0 0.0 0.116 SSE 0.0 0.0 0.020 0.054 0.007 0.004 0.0 0.0 0.0 0.084 S 0.0 0.0 0.027 0.025 0.010 0.001 0.0 0.0 0.0 0.063 SSW 0.0 0.0 0.010 0.030 0.021 0.009 0.001 0.0 0.0 0.071 SW 0.0 0.0 0.011 0.063 0.040 0.022 0.003 0.0 0.0 0.139 WSW 0.0 0.0 0.002 0.025 0.028 0.046 0.006 0.0 0.0 0.108 W 0.0 0.0 0.001 0.004 0.031 0.057 0.015 0.008 0.0 0.117 WNW 0.0 0.0 0.0 0.003 0.003 0.030 0.025 0.003 0.0 0.064 NW 0.0 0.0 0.0 0.002 0.002 0.002 0.010 0.0 0.0 0.015 NNW 0.0 0.0 0.0 0.0 0.0 0.001 0.002 0.0 0.0 0.002 Sub total 0.0 0.0 0.101 0.278 0.166 0.206 0.066 0.013 0.0 0.830 Total hours of valid observations - 101961 Total hours of elevated releases - 91128.969 Total hours of stability class C - 1307.02 Total hours of elevated stability class C - 846.48 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T between 45.30 and 89.60 meters Wind direction measured at 45.67 meter level Wind speed and direction measured at 45.67 meter level Effluent velocity = 12.60 m/s

0-ODCM-001 Revision 0024 Page 185 of 227 Table 7.3 (25 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Split Level Releases - Elevated Portion Stability Class D (-1.5 < Delta-T -0.5 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.005 0.120 0.359 0.577 1.660 1.059 0.135 0.003 3.919 NNE 0.0 0.017 0.129 0.416 0.719 1.926 0.915 0.070 0.001 4.193 NE 0.0 0.016 0.124 0.358 0.469 0.904 0.153 0.008 0.0 2.032 ENE 0.0 0.012 0.122 0.245 0.244 0.260 0.034 0.003 0.0 0.920 E 0.0 0.018 0.124 0.219 0.245 0.298 0.088 0.008 0.0 0.999 ESE 0.001 0.010 0.224 0.499 0.561 0.822 0.138 0.005 0.0 2.260 SE 0.002 0.025 0.753 1.509 0.945 1.586 0.834 0.143 0.006 5.803 SSE 0.002 0.036 0.520 0.867 0.705 1.411 0.981 0.277 0.013 4.811 S 0.001 0.012 0.417 0.769 0.603 1.197 1.036 0.320 0.022 4.376 SSW 0.001 0.017 0.240 0.524 0.409 0.792 0.479 0.119 0.006 2.586 SW 0.001 0.016 0.322 0.749 0.425 0.620 0.297 0.053 0.002 2.484 WSW 0.001 0.010 0.178 0.604 0.505 0.575 0.279 0.053 0.001 2.204 W 0.0 0.008 0.111 0.482 0.701 1.163 0.432 0.086 0.004 2.985 WNW 0.0 0.008 0.107 0.330 0.481 1.140 0.823 0.246 0.009 3.145 NW 0.0 0.007 0.110 0.382 0.535 1.281 1.115 0.289 0.007 3.726 NNW 0.0 0.013 0.117 0.277 0.400 1.264 1.092 0.181 0.005 3.348 Sub total 0.012 0.227 3.715 8.588 8.524 16.899 9.754 1.994 0.080 49.792 Total hours of valid observations - 101961 Total hours of elevated release - 91128.969 Total hours of stability class D - 54573.199 Total hours of elevated stability class D - 50768.48 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T between 45.30 and 89.60 meters Wind speed and direction measured at the 45.67 meter level Effluent velocity = 12.60 m/s

0-ODCM-001 Revision 0024 Page 186 of 227 Table 7.3 (26 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Split Level Releases - Elevated Portion Stability Class E (-0.5 < Delta-T 1.5 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.001 0.019 0.146 0.239 0.369 0.794 0.160 0.001 0.0 1.729 NNE 0.001 0.019 0.159 0.273 0.374 0.935 0.228 0.003 0.0 1.992 NE 0.001 0.021 0.138 0.271 0.320 0.713 0.133 0.002 0.0 1.598 ENE 0.002 0.018 0.179 0.260 0.298 0.407 0.057 0.0 0.0 1.221 E 0.001 0.007 0.111 0.283 0.338 0.558 0.046 0.003 0.0 1.347 ESE 0.003 0.019 0.299 0.587 0.719 0.866 0.069 0.004 0.0 2.566 SE 0.005 0.034 0.558 1.105 1.027 1.327 0.446 0.064 0.004 4.570 SSE 0.003 0.021 0.293 0.612 0.522 0.938 0.659 0.156 0.010 3.214 S 0.002 0.018 0.207 0.453 0.335 0.779 0.437 0.075 0.003 2.309 SSW 0.001 0.014 0.167 0.304 0.277 0.519 0.212 0.020 0.001 1.514 SW 0.002 0.013 0.213 0.331 0.321 0.342 0.102 0.014 0.001 1.337 WSW 0.001 0.015 0.162 0.290 0.256 0.291 0.040 0.005 0.0 1.061 W 0.001 0.007 0.113 0.280 0.316 0.347 0.051 0.001 0.0 1.114 WNW 0.001 0.015 0.082 0.183 0.205 0.243 0.038 0.003 0.0 0.771 NW 0.001 0.012 0.107 0.179 0.183 0.294 0.111 0.003 0.0 0.890 NNW 0.001 0.014 0.109 0.192 0.256 0.563 0.154 0.004 0.0 1.293 Sub total 0.026 0.262 3.043 5.843 6.115 9.916 2.942 0.359 0.018 28.526 Total hours of valid observations - 101961 Total hours of elevated release - 91128.969 Total hours of stability class E - 32478.371 Total hours of elevated stability class E - 29085.311 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T between 45.30 and 89.60 meters Wind speed and direction measured at the 45.67 meter level Effluent velocity = 12.60 m/s

0-ODCM-001 Revision 0024 Page 187 of 227 Table 7.3 (27 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Split Level Releases - Elevated Portion Stability Class F (1.5 < Delta-T 4.0 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.001 0.002 0.035 0.082 0.066 0.306 0.038 0.0 0.0 0.530 NNE 0.001 0.002 0.038 0.088 0.097 0.438 0.144 0.0 0.0 0.808 NE 0.001 0.005 0.041 0.115 0.135 0.349 0.102 0.0 0.0 0.748 ENE 0.001 0.009 0.037 0.103 0.149 0.255 0.057 0.0 0.0 0.612 E 0.001 0.003 0.031 0.084 0.133 0.269 0.023 0.001 0.0 0.545 ESE 0.003 0.008 0.115 0.243 0.294 0.183 0.002 0.0 0.0 0.848 SE 0.004 0.009 0.162 0.410 0.274 0.177 0.005 0.001 0.0 1.041 SSE 0.002 0.011 0.088 0.147 0.127 0.161 0.022 0.001 0.0 0.559 S 0.002 0.008 0.079 0.120 0.122 0.171 0.023 0.0 0.0 0.525 SSW 0.001 0.013 0.057 0.119 0.121 0.140 0.010 0.0 0.0 0.461 SW 0.001 0.008 0.061 0.101 0.093 0.063 0.0 0.0 0.0 0.327 WSW 0.001 0.004 0.043 0.072 0.080 0.047 0.001 0.0 0.0 0.248 W 0.001 0.007 0.037 0.063 0.063 0.047 0.001 0.0 0.0 0.219 WNW 0.001 0.005 0.026 0.047 0.029 0.024 0.0 0.0 0.0 0.133 NW 0.001 0.005 0.033 0.047 0.029 0.016 0.002 0.0 0.0 0.132 NNW 0.001 0.006 0.025 0.032 0.043 0.068 0.005 0.0 0.0 0.179 Sub total 0.022 0.103 0.910 1.873 1.855 2.717 0.434 0.003 0.0 7.916 Total hours of valid observations - 101961 Total hours of elevated release - 91128.969 Total hours of stability class F - 9482 Total hours of elevated stability class F - 8071.49 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T between 45.30 and 89.60 meters Wind speed and direction measured at the 45.67 meter level Effluent velocity = 12.60 m/s

0-ODCM-001 Revision 0024 Page 188 of 227 Table 7.3 (28 of 28)

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION Split Level Releases - Elevated Portion Stability Class G (Delta-T > 4.0 degrees C per 100 m)

BROWNS FERRY NUCLEAR PLANT January 1, 1977 - December 31, 1988 Wind Speed (mph)

WIND 0.6- 1.5- 3.5- 5.5- 7.5- 12.5- 18.5-Dir Calm 1.4 3.4 5.4 7.4 12.4 18.4 24.4 24.5 Total N 0.0 0.0 0.007 0.023 0.022 0.064 0.002 0.0 0.0 0.118 NNE 0.0 0.001 0.013 0.025 0.045 0.130 0.051 0.0 0.0 0.264 NE 0.0 0.002 0.018 0.021 0.051 0.122 0.021 0.0 0.0 0.234 ENE 0.0 0.003 0.005 0.017 0.027 0.071 0.010 0.0 0.0 0.133 E 0.0 0.001 0.003 0.019 0.013 0.043 0.002 0.0 0.0 0.082 ESE 0.001 0.006 0.048 0.103 0.054 0.016 0.0 0.0 0.0 0.229 SE 0.003 0.005 0.107 0.219 0.107 0.035 0.0 0.0 0.0 0.475 SSE 0.001 0.005 0.045 0.064 0.038 0.025 0.0 0.0 0.0 0.177 S 0.001 0.002 0.026 0.040 0.035 0.011 0.0 0.0 0.0 0.116 SSW 0.0 0.003 0.012 0.014 0.030 0.023 0.001 0.0 0.0 0.083 SW 0.0 0.006 0.009 0.008 0.028 0.012 0.0 0.0 0.0 0.063 WSW 0.0 0.001 0.013 0.008 0.0 0.001 0.0 0.0 0.0 0.023 W 0.0 0.0 0.014 0.011 0.005 0.004 0.0 0.0 0.0 0.033 WNW 0.0 0.002 0.009 0.004 0.005 0.002 0.0 0.0 0.0 0.022 NW 0.0 0.006 0.005 0.010 0.008 0.003 0.0 0.0 0.0 0.031 NNW 0.0 0.0 0.012 0.010 0.005 0.007 0.0 0.0 0.0 0.034 Sub total 0.006 0.042 0.344 0.592 0.471 0.568 0.087 0.0 0.0 2.116 Total hours of valid observations - 101961 Total hours of elevated release - 91128.969 Total hours of stability class G - 2783.14 Total hours of elevated stability class G - 2157.41 Meteorological facility: located 1.3 km ESE of BFN Stability based on Delta-T between 45.30 and 89.60 meters Wind speed and direction measured at the 45.67 meter level Effluent velocity = 12.60 m/s

0-ODCM-001 Revision 0024 Page 189 of 227 Table 7.4 NOBLE GAS DOSE FACTORS Submersion dose Air dose mrem/y per µCi/m3 mrad/y per µCi/m3 DFBi DFSi DFi DFi Ar-41 8.84E+03 2.69E+03 9.30E+03 3.28E+03 Kr-83m 7.56E-02 --- 1.93E+01 2.88E+02 Kr-85m 1.17E+03 1.46E+03 1.23E+03 1.97E+03 Kr-85 1.61E+01 1.34E+03 1.72E+01 1.95E+03 Kr-87 5.92E+03 9.73E+03 6.17E+03 1.03E+04 Kr-88 1.47E+04 2.37E+03 1.52E+04 2.93E+03 Kr-89 1.66E+04 1.01E+04 1.73E+04 1.06E+04 Kr-90 1.56E+04 7.29E+03 1.63E+04 7.83E+03 Xe-131m 9.15E+01 4.76E+02 1.56E+02 1.11E+03 Xe-133m 2.51E+02 9.94E+02 3.27E+02 1.48E+03 Xe-133 2.94E+02 3.06E+02 3.53E+02 1.05E+03 Xe-135m 3.12E+03 7.11E+02 3.36E+03 7.39E+02 Xe-135 1.81E+03 1.86E+03 1.92E+03 2.46E+03 Xe-137 1.42E+03 1.22E+04 1.51E+03 1.27E+04 Xe-138 8.83E+03 4.13E+03 9.21E+03 4.75E+03

Reference:

Regulatory Guide 1.109, Table B-1.

Finite Cloud Dose Factors mrad/y per µCi/s (Bi) or mrem/y per µCi/s (Vi)

Highest Site Boundary Highest Site Boundary Highest Offsite Location Ground Vent Releases Split Level Vent Elevated Vent Releases NNW Sector at 1650 m Releases N Sector NW Sector at 8500 m at 1525 m Bi Vi Bi Vi Bi Vi Ar-41 1.30E-03 1.50E-03 1.63E-03 1.87E-03 2.71E-04 3.12E-04 Kr-83m 1.08E-05 1.23E-05 1.31E-05 1.48E-05 2.25E-06 2.55E-06 Kr-85m 7.29E-05 8.57E-05 9.38E-05 1.10E-04 1.52E-05 1.78E-05 Kr-85 2.68E-04 3.11E-04 3.34E-04 3.88E-04 5.56E-05 6.46E-05 Kr-87 8.46E-04 9.72E-04 1.11E-03 1.28E-03 1.76E-04 2.02E-04 Kr-88 1.84E-03 2.09E-03 2.42E-03 2.75E-03 3.82E-04 4.34E-04 Kr-89 1.89E-03 2.17E-03 2.49E-03 2.86E-03 3.94E-04 4.51E-04 Kr-90 1.17E-03 1.36E-03 1.54E-03 1.78E-03 2.44E-04 2.83E-04 Xe-131m 5.87E-05 6.67E-05 7.10E-05 8.08E-05 1.22E-05 1.39E-05 Xe-133m 9.91E-05 1.14E-04 1.22E-04 1.41E-04 2.06E-05 2.37E-05 Xe-133 1.34E-04 1.52E-04 1.61E-04 1.83E-04 2.78E-05 3.15E-05 Xe-135m 7.20E-04 8.43E-04 9.31E-04 1.09E-03 1.50E-04 1.75E-04 Xe-135 4.73E-04 5.54E-04 6.01E-04 7.05E-04 9.83E-05 1.15E-04 Xe-137 6.74E-04 7.68E-04 8.87E-04 1.01E-03 1.40E-04 1.60E-04 Xe-138 1.24E-03 1.43E-03 1.63E-03 1.87E-03 2.59E-04 2.97E-04

Reference:

TVA generated values.

0-ODCM-001 Revision 0024 Page 190 of 227 Table 7.5 SECTOR ELEMENTS CONSIDERED FOR POPULATION DOSES Range of Midpoint of Sector Element Sector Element Site boundary - 1 mile 0.8 mile 1 - 2 miles 1.5 miles 2 - 3 miles 2.5 miles 3 - 4 miles 3.5 miles 4 - 5 miles 4.5 miles 5 - 10 miles 7.5 miles 10 - 20 miles 15 miles 20 - 30 miles 25 miles 30 - 40 miles 35 miles 40 - 50 miles 45 miles

0-ODCM-001 Revision 0024 Page 191 of 227 Table 7.6 BFN 50-MILE POPULATION WITHIN EACH SECTOR ELEMENT Distance Range 0-1 1-2 2-3 3-4 4-5 5-10 10-20 20-30 30-40 40-50 N 0 1 24 196 44 1334 1947 2215 3784 12986 NNE 0 2 75 3 156 1502 5795 2956 2695 3793 NE 0 0 0 7 46 1599 18981 8852 11761 9477 ENE 0 7 63 37 83 1202 11537 40121 27675 28064 E 15 29 48 16 0 531 2433 57557 126546 42809 ESE 0 0 0 0 0 0 517 4021 9296 12425 SE 0 0 0 0 0 101 39807 12341 5658 8602 SSE 0 0 0 0 0 1167 21176 17797 8604 27574 S 0 0 22 0 0 970 5964 2778 2358 5817 SSW 0 0 0 56 27 682 5331 5235 272 3101 SW 0 0 8 0 36 782 3670 3466 1226 5390 WSW 0 0 0 28 0 77 1347 3361 4047 16468 W 0 0 0 29 0 55 1841 3630 25744 15491 WNW 0 0 0 0 60 3 1517 7417 37338 26425 NW 0 0 0 0 0 393 4064 5080 8433 2239 NNW 0 95 67 0 117 946 1720 2701 3885 18090

0-ODCM-001 Revision 0024 Page 192 of 227 Table 7.7 (1 of 11)

INHALATION DOSE FACTORS (mrem/pCi inhaled)

ADULT Nuclide bone liver t body thyroid kidney lung gi-lli H-3 1.58E-07 1.58E-07 1.58E-07 1.58E-07 1.58E-07 1.58E-07 1.58E-07 C-14 2.27E-06 4.26E-07 4.26E-07 4.26E-07 4.26E-07 4.26E-07 4.26E-07 Na-24 1.28E-06 1.28E-06 1.28E-06 1.28E-06 1.28E-06 1.28E-06 1.28E-06 P-32 1.65E-04 9.64E-06 6.26E-06 0.00E+00 0.00E+00 0.00E+00 1.08E-05 Cr-51 0.00E+00 0.00E+00 1.25E-08 7.44E-09 2.85E-09 1.80E-06 4.15E-07 Mn-54 0.00E+00 4.95E-06 7.87E-07 0.00E+00 1.23E-06 1.75E-04 9.67E-06 Mn-56 0.00E+00 1.55E-10 2.29E-11 0.00E+00 1.63E-10 1.18E-06 2.53E-06 Fe-55 3.07E-06 2.12E-06 4.93E-07 0.00E+00 0.00E+00 9.01E-06 7.54E-07 Fe-59 1.47E-06 3.47E-06 1.32E-06 0.00E+00 0.00E+00 1.27E-04 2.35E-05 Co-57 0.00E+00 8.65E-08 8.39E-08 0.00E+00 0.00E+00 4.62E-05 3.93E-06 Co-58 0.00E+00 1.98E-07 2.59E-07 0.00E+00 0.00E+00 1.16E-04 1.33E-05 Co-60 0.00E+00 1.44E-06 1.85E-06 0.00E+00 0.00E+00 7.46E-04 3.56E-05 Ni-63 5.40E-05 3.93E-06 1.81E-06 0.00E+00 0.00E+00 2.23E-05 1.67E-06 Ni-65 1.92E-10 2.62E-11 1.14E-11 0.00E+00 0.00E+00 7.00E-07 1.54E-06 Cu-64 0.00E+00 1.83E-10 7.69E-11 0.00E+00 5.78E-10 8.48E-07 6.12E-06 Zn-65 4.05E-06 1.29E-05 5.82E-06 0.00E+00 8.62E-06 1.08E-04 6.68E-06 Zn-69 4.23E-12 8.14E-12 5.65E-13 0.00E+00 5.27E-12 1.15E-07 2.04E-09 Zn-69m 1.02E-09 2.45E-09 2.24E-10 0.00E+00 1.48E-09 2.38E-06 1.71E-05 Br-82 0.00E+00 0.00E+00 1.69E-06 0.00E+00 0.00E+00 0.00E+00 1.30E-06 Br-83 0.00E+00 0.00E+00 3.01E-08 0.00E+00 0.00E+00 0.00E+00 2.90E-08 Br-84 0.00E+00 0.00E+00 3.91E-08 0.00E+00 0.00E+00 0.00E+00 2.05E-13 Br-85 0.00E+00 0.00E+00 1.60E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Rb-86 0.00E+00 1.69E-05 7.37E-06 0.00E+00 0.00E+00 0.00E+00 2.08E-06 Rb-88 0.00E+00 4.84E-08 2.41E-08 0.00E+00 0.00E+00 0.00E+00 4.18E-19 Rb-89 0.00E+00 3.20E-08 2.12E-08 0.00E+00 0.00E+00 0.00E+00 1.16E-21 Sr-89 3.80E-05 0.00E+00 1.09E-06 0.00E+00 0.00E+00 1.75E-04 4.37E-05 Sr-90 1.24E-02 0.00E+00 7.62E-04 0.00E+00 0.00E+00 1.20E-03 9.02E-05 Sr-91 7.74E-09 0.00E+00 3.13E-10 0.00E+00 0.00E+00 4.56E-06 2.39E-05 Sr-92 8.43E-10 0.00E+00 3.64E-11 0.00E+00 0.00E+00 2.06E-06 5.38E-06 Y-90 2.61E-07 0.00E+00 7.01E-09 0.00E+00 0.00E+00 2.12E-05 6.32E-05 Y-91m 3.26E-11 0.00E+00 1.27E-12 0.00E+00 0.00E+00 2.40E-07 1.66E-10 Y-91 5.78E-05 0.00E+00 1.55E-06 0.00E+00 0.00E+00 2.13E-04 4.81E-05 Y-92 1.29E-09 0.00E+00 3.77E-11 0.00E+00 0.00E+00 1.96E-06 9.19E-06 Y-93 1.18E-08 0.00E+00 3.26E-10 0.00E+00 0.00E+00 6.06E-06 5.27E-05 Zr-95 1.34E-05 4.30E-06 2.91E-06 0.00E+00 6.77E-06 2.21E-04 1.88E-05 Zr-97 1.21E-08 2.45E-09 1.13E-09 0.00E+00 3.71E-09 9.84E-06 6.54E-05 Nb-95 1.76E-06 9.77E-07 5.26E-07 0.00E+00 9.67E-07 6.31E-05 1.30E-05 Nb-97 2.78E-11 7.03E-12 2.56E-12 0.00E+00 8.18E-12 3.00E-07 3.02E-08 Mo-99 0.00E+00 1.51E-08 2.87E-09 0.00E+00 3.64E-08 1.14E-05 3.10E-05

0-ODCM-001 Revision 0024 Page 193 of 227 Table 7.7 (2 of 11)

INHALATION DOSE FACTORS (mrem/pCi inhaled)

ADULT Nuclide bone liver t body thyroid kidney lung gi-lli Tc-99m 1.29E-13 3.64E-13 4.63E-12 0.00E+00 5.52E-12 9.55E-08 5.20E-07 Tc-101 5.22E-15 7.52E-15 7.38E-14 0.00E+00 1.35E-13 4.99E-08 1.36E-21 Ru-103 1.91E-07 0.00E+00 8.23E-08 0.00E+00 7.29E-07 6.31E-05 1.38E-05 Ru-105 9.88E-11 0.00E+00 3.89E-11 0.00E+00 1.27E-10 1.37E-06 6.02E-06 Ru-106 8.64E-06 0.00E+00 1.09E-06 0.00E+00 1.67E-05 1.17E-03 1.14E-04 Ag-110m 1.35E-06 1.25E-06 7.43E-07 0.00E+00 2.46E-06 5.79E-04 3.78E-05 Sb-124 3.90E-06 7.36E-08 1.55E-06 9.44E-09 0.00E+00 3.10E-04 5.08E-05 Sb-125 6.67E-06 7.44E-08 1.58E-06 6.75E-09 0.00E+00 2.18E-04 1.26E-05 Te-125m 4.27E-07 1.98E-07 5.84E-08 1.31E-07 1.55E-06 3.92E-05 8.83E-06 Te-127m 1.58E-06 7.21E-07 1.96E-07 4.11E-07 5.72E-06 1.20E-04 1.87E-05 Te-127 1.75E-10 8.03E-11 3.87E-11 1.32E-10 6.37E-10 8.14E-07 7.17E-06 Te-129m 1.22E-06 5.84E-07 1.98E-07 4.30E-07 4.57E-06 1.45E-04 4.79E-05 Te-129 6.22E-12 2.99E-12 1.55E-12 4.87E-12 2.34E-11 2.42E-07 1.96E-08 Te-131m 8.74E-09 5.45E-09 3.63E-09 6.88E-09 3.86E-08 1.82E-05 6.95E-05 Te-131 1.39E-12 7.44E-13 4.49E-13 1.17E-12 5.46E-12 1.74E-07 2.30E-09 Te-132 3.25E-08 2.69E-08 2.02E-08 2.37E-08 1.82E-07 3.60E-05 6.37E-05 I-130 5.72E-07 1.68E-06 6.60E-07 1.42E-04 2.61E-06 0.00E+00 9.61E-07 I-131 3.15E-06 4.47E-06 2.56E-06 1.49E-03 7.66E-06 0.00E+00 7.85E-07 I-132 1.45E-07 4.07E-07 1.45E-07 1.43E-05 6.48E-07 0.00E+00 5.08E-08 I-133 1.08E-06 1.85E-06 5.65E-07 2.69E-04 3.23E-06 0.00E+00 1.11E-06 I-134 8.05E-08 2.16E-07 7.69E-08 3.73E-06 3.44E-07 0.00E+00 1.26E-10 I-135 3.35E-07 8.73E-07 3.21E-07 5.60E-05 1.39E-06 0.00E+00 6.56E-07 Cs-134 4.66E-05 1.06E-04 9.10E-05 0.00E+00 3.59E-05 1.22E-05 1.30E-06 Cs-136 4.88E-06 1.83E-05 1.38E-05 0.00E+00 1.07E-05 1.50E-06 1.46E-06 Cs-137 5.98E-05 7.76E-05 5.35E-05 0.00E+00 2.78E-05 9.40E-06 1.05E-06 Cs-138 4.14E-08 7.76E-08 4.05E-08 0.00E+00 6.00E-08 6.07E-09 2.33E-13 Ba-139 1.17E-10 8.32E-14 3.42E-12 0.00E+00 7.78E-14 4.70E-07 1.12E-07 Ba-140 4.88E-06 6.13E-09 3.21E-07 0.00E+00 2.09E-09 1.59E-04 2.73E-05 Ba-141 1.25E-11 9.41E-15 4.20E-13 0.00E+00 8.75E-15 2.42E-07 1.45E-17 Ba-142 3.29E-12 3.38E-15 2.07E-13 0.00E+00 2.86E-15 1.49E-07 1.96E-26

0-ODCM-001 Revision 0024 Page 194 of 227 Table 7.7 (3 of 11)

INHALATION DOSE FACTORS (mrem/pCi inhaled)

ADULT Nuclide bone liver t body thyroid kidney lung gi-lli La-140 4.30E-08 2.17E-08 5.73E-09 0.00E+00 0.00E+00 1.70E-05 5.73E-05 La-142 8.54E-11 3.88E-11 9.65E-12 0.00E+00 0.00E+00 7.91E-07 2.64E-07 Ce-141 2.49E-06 1.69E-06 1.91E-07 0.00E+00 7.83E-07 4.52E-05 1.50E-05 Ce-143 2.33E-08 1.72E-08 1.91E-09 0.00E+00 7.60E-09 9.97E-06 2.83E-05 Ce-144 4.29E-04 1.79E-04 2.30E-05 0.00E+00 1.06E-04 9.72E-04 1.02E-04 Pr-143 1.17E-06 4.69E-07 5.80E-08 0.00E+00 2.70E-07 3.51E-05 2.50E-05 Pr-144 3.76E-12 1.56E-12 1.91E-13 0.00E+00 8.81E-13 1.27E-07 2.69E-18 Nd-147 6.59E-07 7.62E-07 4.56E-08 0.00E+00 4.45E-07 2.76E-05 2.16E-05 W-187 1.06E-09 8.85E-10 3.10E-10 0.00E+00 0.00E+00 3.63E-06 1.94E-05 Np-239 2.87E-08 2.82E-09 1.55E-09 0.00E+00 8.75E-09 4.70E-06 1.49E-05

Reference:

Dose Factors for Co-57, Zn-69m, Br-82, Nb-97, Sb-124 and Sb-125 are from NUREG-0172 Age Specific Radiation Dose Commitment Factors for a One Year Chronic Intake, November 1977, Table 8.

All others:

Regulatory Guide 1.109, Table E-7.

NOTE: The tritium dose factor for bone is assumed to be equal to the total body dose factor.

0-ODCM-001 Revision 0024 Page 195 of 227 Table 7.7 (4 of 11)

INHALATION DOSE FACTORS (mrem/pCi inhaled)

TEEN Nuclide bone liver t body thyroid kidney lung gi-lli H-3 1.59E-07 1.59E-07 1.59E-07 1.59E-07 1.59E-07 1.59E-07 1.59E-07 C-14 3.25E-06 6.09E-07 6.09E-07 6.09E-07 6.09E-07 6.09E-07 6.09E-07 Na-24 1.72E-06 1.72E-06 1.72E-06 1.72E-06 1.72E-06 1.72E-06 1.72E-06 P-32 2.36E-04 1.37E-05 8.95E-06 0.00E+00 0.00E+00 0.00E+00 1.16E-05 Cr-51 0.00E+00 0.00E+00 1.69E-08 9.37E-09 3.84E-09 2.62E-06 3.75E-07 Mn-54 0.00E+00 6.39E-06 1.05E-06 0.00E+00 1.59E-06 2.48E-04 8.35E-06 Mn-56 0.00E+00 2.12E-10 3.15E-11 0.00E+00 2.24E-10 1.90E-06 7.18E-06 Fe-55 4.18E-06 2.98E-06 6.93E-07 0.00E+00 0.00E+00 1.55E-05 7.99E-07 Fe-59 1.99E-06 4.62E-06 1.79E-06 0.00E+00 0.00E+00 1.91E-04 2.23E-05 Co-57 0.00E+00 1.18E-07 1.15E-07 0.00E+00 0.00E+00 7.33E-05 3.93E-06 Co-58 0.00E+00 2.59E-07 3.47E-07 0.00E+00 0.00E+00 1.68E-04 1.19E-05 Co-60 0.00E+00 1.89E-06 2.48E-06 0.00E+00 0.00E+00 1.09E-03 3.24E-05 Ni-63 7.25E-05 5.43E-06 2.47E-06 0.00E+00 0.00E+00 3.84E-05 1.77E-06 Ni-65 2.73E-10 3.66E-11 1.59E-11 0.00E+00 0.00E+00 1.17E-06 4.59E-06 Cu-64 0.00E+00 2.54E-10 1.06E-10 0.00E+00 8.01E-10 1.39E-06 7.68E-06 Zn-65 4.82E-06 1.67E-05 7.80E-06 0.00E+00 1.08E-05 1.55E-04 5.83E-06 Zn-69 6.04E-12 1.15E-11 8.07E-13 0.00E+00 7.53E-12 1.98E-07 3.56E-08 Zn-69m 1.44E-09 3.39E-09 3.11E-10 0.00E+00 2.06E-09 3.92E-06 2.14E-05 Br-82 0.00E+00 0.00E+00 2.28E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-83 0.00E+00 0.00E+00 4.30E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-84 0.00E+00 0.00E+00 5.41E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-85 0.00E+00 0.00E+00 2.29E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Rb-86 0.00E+00 2.38E-05 1.05E-05 0.00E+00 0.00E+00 0.00E+00 2.21E-06 Rb-88 0.00E+00 6.82E-08 3.40E-08 0.00E+00 0.00E+00 0.00E+00 3.65E-15 Rb-89 0.00E+00 4.40E-08 2.91E-08 0.00E+00 0.00E+00 0.00E+00 4.22E-17 Sr-89 5.43E-05 0.00E+00 1.56E-06 0.00E+00 0.00E+00 3.02E-04 4.64E-05 Sr-90 1.35E-02 0.00E+00 8.35E-04 0.00E+00 0.00E+00 2.06E-03 9.56E-05 Sr-91 1.10E-08 0.00E+00 4.39E-10 0.00E+00 0.00E+00 7.59E-06 3.24E-05 Sr-92 1.19E-09 0.00E+00 5.08E-11 0.00E+00 0.00E+00 3.43E-06 1.49E-05 Y-90 3.73E-07 0.00E+00 1.00E-08 0.00E+00 0.00E+00 3.66E-05 6.99E-05 Y-91m 4.63E-11 0.00E+00 1.77E-12 0.00E+00 0.00E+00 4.00E-07 3.77E-09 Y-91 8.26E-05 0.00E+00 2.21E-06 0.00E+00 0.00E+00 3.67E-04 5.11E-05 Y-92 1.84E-09 0.00E+00 5.36E-11 0.00E+00 0.00E+00 3.35E-06 2.06E-05 Y-93 1.69E-08 0.00E+00 4.65E-10 0.00E+00 0.00E+00 1.04E-05 7.24E-05 Zr-95 1.82E-05 5.73E-06 3.94E-06 0.00E+00 8.42E-06 3.36E-04 1.86E-05 Zr-97 1.72E-08 3.40E-09 1.57E-09 0.00E+00 5.15E-09 1.62E-05 7.88E-05 Nb-95 2.32E-06 1.29E-06 7.08E-07 0.00E+00 1.25E-06 9.39E-05 1.21E-05 Nb-97 3.92E-11 9.72E-12 3.55E-12 0.00E+00 1.14E-11 4.91E-07 2.71E-07 Mo-99 0.00E+00 2.11E-08 4.03E-09 0.00E+00 5.14E-08 1.92E-05 3.36E-05 Tc-99m 1.73E-13 4.83E-13 6.24E-12 0.00E+00 7.20E-12 1.44E-07 7.66E-07 Tc-101 7.40E-15 1.05E-14 1.03E-13 0.00E+00 1.90E-13 8.34E-08 1.09E-16 Ru-103 2.63E-07 0.00E+00 1.12E-07 0.00E+00 9.29E-07 9.79E-05 1.36E-05 Ru-105 1.40E-10 0.00E+00 5.42E-11 0.00E+00 1.76E-10 2.27E-06 1.13E-05 Ru-106 1.23E-05 0.00E+00 1.55E-06 0.00E+00 2.38E-05 2.01E-03 1.20E-04 Ag-110m 1.73E-06 1.64E-06 9.99E-07 0.00E+00 3.13E-06 8.44E-04 3.41E-05

0-ODCM-001 Revision 0024 Page 196 of 227 Table 7.7 (5 of 11)

INHALATION DOSE FACTORS (mrem/pCi inhaled)

TEEN Nuclide bone liver t body thyroid kidney lung gi-lli Sb-124 5.38E-06 9.92E-08 2.10E-06 1.22E-08 0.00E+00 4.81E-04 4.98E-05 Sb-125 9.23E-06 1.01E-07 2.15E-06 8.80E-09 0.00E+00 3.42E-04 1.24E-05 Te-125m 6.10E-07 2.80E-07 8.34E-08 1.75E-07 0.00E+00 6.70E-05 9.38E-06 Te-127m 2.25E-06 1.02E-06 2.73E-07 5.48E-07 8.17E-06 2.07E-04 1.99E-05 Te-127 2.51E-10 1.14E-10 5.52E-11 1.77E-10 9.10E-10 1.40E-06 1.01E-05 Te-129m 1.74E-06 8.23E-07 2.81E-07 5.72E-07 6.49E-06 2.47E-04 5.06E-05 Te-129 8.87E-12 4.22E-12 2.20E-12 6.48E-12 3.32E-11 4.12E-07 2.02E-07 Te-131m 1.23E-08 7.51E-09 5.03E-09 9.06E-09 5.49E-08 2.97E-05 7.76E-05 Te-131 1.97E-12 1.04E-12 6.30E-13 1.55E-12 7.72E-12 2.92E-07 1.89E-09 Te-132 4.50E-08 3.63E-08 2.74E-08 3.07E-08 2.44E-07 5.61E-05 5.79E-05 I-130 7.80E-07 2.24E-06 8.96E-07 1.86E-04 3.44E-06 0.00E+00 1.14E-06 I-131 4.43E-06 6.14E-06 3.30E-06 1.83E-03 1.05E-05 0.00E+00 8.11E-07 I-132 1.99E-07 5.47E-07 1.97E-07 1.89E-05 8.65E-07 0.00E+00 1.59E-07 I-133 1.52E-06 2.56E-06 7.78E-07 3.65E-04 4.49E-06 0.00E+00 1.29E-06 I-134 1.11E-07 2.90E-07 1.05E-07 4.94E-06 4.58E-07 0.00E+00 2.55E-09 I-135 4.62E-07 1.18E-06 4.36E-07 7.76E-05 1.86E-06 0.00E+00 8.69E-07 Cs-134 6.28E-05 1.41E-04 6.86E-05 0.00E+00 4.69E-05 1.83E-05 1.22E-06 Cs-136 6.44E-06 2.42E-05 1.71E-05 0.00E+00 1.38E-05 2.22E-06 1.36E-06 Cs-137 8.38E-05 1.06E-04 3.89E-05 0.00E+00 3.80E-05 1.51E-05 1.06E-06 Cs-138 5.82E-08 1.07E-07 5.58E-08 0.00E+00 8.28E-08 9.84E-09 3.38E-11 Ba-139 1.67E-10 1.18E-13 4.87E-12 0.00E+00 1.11E-13 8.08E-07 8.06E-07 Ba-140 6.84E-06 8.38E-09 4.40E-07 0.00E+00 2.85E-09 2.54E-04 2.86E-05 Ba-141 1.78E-11 1.32E-14 5.93E-13 0.00E+00 1.23E-14 4.11E-07 9.33E-14 Ba-142 4.62E-12 4.63E-15 2.84E-13 0.00E+00 3.92E-15 2.39E-07 5.99E-20 La-140 5.99E-08 2.95E-08 7.82E-09 0.00E+00 0.00E+00 2.68E-05 6.09E-05 La-142 1.20E-10 5.31E-11 1.32E-11 0.00E+00 0.00E+00 1.27E-06 1.50E-06 Ce-141 3.55E-06 2.37E-06 2.71E-07 0.00E+00 1.11E-06 7.67E-05 1.58E-05 Ce-143 3.32E-08 2.42E-08 2.70E-09 0.00E+00 1.08E-08 1.63E-05 3.19E-05 Ce-144 6.11E-04 2.53E-04 3.28E-05 0.00E+00 1.51E-04 1.67E-03 1.08E-04 Pr-143 1.67E-06 6.64E-07 8.28E-08 0.00E+00 3.86E-07 6.04E-05 2.67E-05 Pr-144 5.37E-12 2.20E-12 2.72E-13 0.00E+00 1.26E-12 2.19E-07 2.94E-14 Nd-147 9.83E-07 1.07E-06 6.41E-08 0.00E+00 6.28E-07 4.65E-05 2.28E-05 W-187 1.50E-09 1.22E-09 4.29E-10 0.00E+00 0.00E+00 5.92E-06 2.21E-05 Np-239 4.23E-08 3.99E-09 2.21E-09 0.00E+00 1.25E-08 8.11E-06 1.65E-05

Reference:

Dose Factors for Co-57, Zn-69m, Br-82, Nb-97, Sb-124 and Sb-125 are from NUREG-0172 Age Specific Radiation Dose Commitment Factors for a One Year Chronic Intake, November 1977, Table 7.

All others:

Regulatory Guide 1.109, Table E-8.

NOTE: The tritium dose factor for bone is assumed to be equal to the total body dose factor.

0-ODCM-001 Revision 0024 Page 197 of 227 Table 7.7 (6 of 11)

INHALATION DOSE FACTORS (mrem/pCi inhaled)

CHILD Nuclide bone liver t body thyroid kidney lung gi-lli H-3 3.04E-07 3.04E-07 3.04E-07 3.04E-07 3.04E-07 3.04E-07 3.04E-07 C-14 9.70E-06 1.82E-06 1.82E-06 1.82E-06 1.82E-06 1.82E-06 1.82E-06 Na-24 4.35E-06 4.35E-06 4.35E-06 4.35E-06 4.35E-06 4.35E-06 4.35E-06 P-32 7.04E-04 3.09E-05 2.67E-05 0.00E+00 0.00E+00 0.00E+00 1.14E-05 Cr-51 0.00E+00 0.00E+00 4.17E-08 2.31E-08 6.57E-09 4.59E-06 2.93E-07 Mn-54 0.00E+00 1.16E-05 2.57E-06 0.00E+00 2.71E-06 4.26E-04 6.19E-06 Mn-56 0.00E+00 4.48E-10 8.43E-11 0.00E+00 4.52E-10 3.55E-06 3.33E-05 Fe-55 1.28E-05 6.80E-06 2.10E-06 0.00E+00 0.00E+00 3.00E-05 7.75E-07 Fe-59 5.59E-06 9.04E-06 4.51E-06 0.00E+00 0.00E+00 3.43E-04 1.91E-05 Co-57 0.00E+00 2.44E-07 2.88E-07 0.00E+00 0.00E+00 1.37E-04 3.58E-06 Co-58 0.00E+00 4.79E-07 8.55E-07 0.00E+00 0.00E+00 2.99E-04 9.29E-06 Co-60 0.00E+00 3.55E-06 6.12E-06 0.00E+00 0.00E+00 1.91E-03 2.60E-05 Ni-63 2.22E-04 1.25E-05 7.56E-06 0.00E+00 0.00E+00 7.43E-05 1.71E-06 Ni-65 8.08E-10 7.99E-11 4.44E-11 0.00E+00 0.00E+00 2.21E-06 2.27E-05 Cu-64 0.00E+00 5.39E-10 2.90E-10 0.00E+00 1.63E-09 2.59E-06 9.92E-06 Zn-65 1.15E-05 3.06E-05 1.90E-05 0.00E+00 1.93E-05 2.69E-04 4.41E-06 Zn-69 1.81E-11 2.61E-11 2.41E-12 0.00E+00 1.58E-11 3.84E-07 2.75E-06 Zn-69m 4.26E-09 7.28E-09 8.59E-10 0.00E+00 4.22E-09 7.36E-06 2.71E-05 Br-82 0.00E+00 0.00E+00 5.66E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-83 0.00E+00 0.00E+00 1.28E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-84 0.00E+00 0.00E+00 1.48E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-85 0.00E+00 0.00E+00 6.84E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Rb-86 0.00E+00 5.36E-05 3.09E-05 0.00E+00 0.00E+00 0.00E+00 2.16E-06 Rb-88 0.00E+00 1.52E-07 9.90E-08 0.00E+00 0.00E+00 0.00E+00 4.66E-09 Rb-89 0.00E+00 9.33E-08 7.83E-08 0.00E+00 0.00E+00 0.00E+00 5.11E-10 Sr-89 1.62E-04 0.00E+00 4.66E-06 0.00E+00 0.00E+00 5.83E-04 4.52E-05 Sr-90 2.73E-02 0.00E+00 1.74E-03 0.00E+00 0.00E+00 3.99E-03 9.28E-05 Sr-91 3.28E-08 0.00E+00 1.24E-09 0.00E+00 0.00E+00 1.44E-05 4.70E-05 Sr-92 3.54E-09 0.00E+00 1.42E-10 0.00E+00 0.00E+00 6.49E-06 6.55E-05 Y-90 1.11E-06 0.00E+00 2.99E-08 0.00E+00 0.00E+00 7.07E-05 7.24E-05 Y-91m 1.37E-10 0.00E+00 4.98E-12 0.00E+00 0.00E+00 7.60E-07 4.64E-07 Y-91 2.47E-04 0.00E+00 6.59E-06 0.00E+00 0.00E+00 7.10E-04 4.97E-05 Y-92 5.50E-09 0.00E+00 1.57E-10 0.00E+00 0.00E+00 6.46E-06 6.46E-05 Y-93 5.04E-08 0.00E+00 1.38E-09 0.00E+00 0.00E+00 2.01E-05 1.05E-04 Zr-95 5.13E-05 1.13E-05 1.00E-05 0.00E+00 1.61E-05 6.03E-04 1.65E-05 Zr-97 5.07E-08 7.34E-09 4.32E-09 0.00E+00 1.05E-08 3.06E-05 9.49E-05 Nb-95 6.35E-06 2.48E-06 1.77E-06 0.00E+00 2.33E-06 1.66E-04 1.00E-05 Nb-97 1.16E-10 2.08E-11 9.74E-12 0.00E+00 2.31E-11 9.23E-07 7.52E-06 Mo-99 0.00E+00 4.66E-08 1.15E-08 0.00E+00 1.06E-07 3.66E-05 3.42E-05

0-ODCM-001 Revision 0024 Page 198 of 227 Table 7.7 (7 of 11)

INHALATION DOSE FACTORS (mrem/pCi inhaled)

CHILD Nuclide bone liver t body thyroid kidney lung gi-lli Tc-99m 4.81E-13 9.41E-13 1.56E-11 0.00E+00 1.37E-11 2.57E-07 1.30E-06 Tc-101 2.19E-14 2.30E-14 2.91E-13 0.00E+00 3.92E-13 1.58E-07 4.41E-09 Ru-103 7.55E-07 0.00E+00 2.90E-07 0.00E+00 1.90E-06 1.79E-04 1.21E-05 Ru-105 4.13E-10 0.00E+00 1.50E-10 0.00E+00 3.63E-10 4.30E-06 2.69E-05 Ru-106 3.68E-05 0.00E+00 4.57E-06 0.00E+00 4.97E-05 3.87E-03 1.16E-04 Ag-110m 4.56E-06 3.08E-06 2.47E-06 0.00E+00 5.74E-06 1.48E-03 2.71E-05 Sb-124 1.55E-05 2.00E-07 5.41E-06 3.41E-08 0.00E+00 8.76E-04 4.43E-05 Sb-125 2.66E-05 2.05E-07 5.59E-06 2.46E-08 0.00E+00 6.27E-04 1.09E-05 Te-125m 1.82E-06 6.29E-07 2.47E-07 5.20E-07 0.00E+00 1.29E-04 9.13E-06 Te-127m 6.72E-06 2.31E-06 8.16E-07 1.64E-06 1.72E-05 4.00E-04 1.93E-05 Te-127 7.49E-10 2.57E-10 1.65E-10 5.30E-10 1.91E-09 2.71E-06 1.52E-05 Te-129m 5.19E-06 1.85E-06 8.22E-07 1.71E-06 1.36E-05 4.76E-04 4.91E-05 Te-129 2.64E-11 9.45E-12 6.44E-12 1.93E-11 6.94E-11 7.93E-07 6.89E-06 Te-131m 3.63E-08 1.60E-08 1.37E-08 2.64E-08 1.08E-07 5.56E-05 8.32E-05 Te-131 5.87E-12 2.28E-12 1.78E-12 4.59E-12 1.59E-11 5.55E-07 3.60E-07 Te-132 1.30E-07 7.36E-08 7.12E-08 8.58E-08 4.79E-07 1.02E-04 3.72E-05 I-130 2.21E-06 4.43E-06 2.28E-06 4.99E-04 6.61E-06 0.00E+00 1.38E-06 I-131 1.30E-05 1.30E-05 7.37E-06 4.39E-03 2.13E-05 0.00E+00 7.68E-07 I-132 5.72E-07 1.10E-06 5.07E-07 5.23E-05 1.69E-06 0.00E+00 8.65E-07 I-133 4.48E-06 5.49E-06 2.08E-06 1.04E-03 9.13E-06 0.00E+00 1.48E-06 I-134 3.17E-07 5.84E-07 2.69E-07 1.37E-05 8.92E-07 0.00E+00 2.58E-07 I-135 1.33E-06 2.36E-06 1.12E-06 2.14E-04 3.62E-06 0.00E+00 1.20E-06 Cs-134 1.76E-04 2.74E-04 6.07E-05 0.00E+00 8.93E-05 3.27E-05 1.04E-06 Cs-136 1.76E-05 4.62E-05 3.14E-05 0.00E+00 2.58E-05 3.93E-06 1.13E-06 Cs-137 2.45E-04 2.23E-04 3.47E-05 0.00E+00 7.63E-05 2.81E-05 9.78E-07 Cs-138 1.71E-07 2.27E-07 1.50E-07 0.00E+00 1.68E-07 1.84E-08 7.29E-08 Ba-139 4.98E-10 2.66E-13 1.45E-11 0.00E+00 2.33E-13 1.56E-06 1.56E-05 Ba-140 2.00E-05 1.75E-08 1.17E-06 0.00E+00 5.71E-09 4.71E-04 2.75E-05 Ba-141 5.29E-11 2.95E-14 1.72E-12 0.00E+00 2.56E-14 7.89E-07 7.44E-08 Ba-142 1.35E-11 9.73E-15 7.54E-13 0.00E+00 7.87E-15 4.44E-07 7.41E-10

0-ODCM-001 Revision 0024 Page 199 of 227 Table 7.7 (8 of 11)

INHALATION DOSE FACTORS (mrem/pCi inhaled)

CHILD Nuclide bone liver t body thyroid kidney lung gi-lli La-140 1.74E-07 6.08E-08 2.04E-08 0.00E+00 0.00E+00 4.94E-05 6.10E-05 La-142 3.50E-10 1.11E-10 3.49E-11 0.00E+00 0.00E+00 2.35E-06 2.05E-05 Ce-141 1.06E-05 5.28E-06 7.83E-07 0.00E+00 2.31E-06 1.47E-04 1.53E-05 Ce-143 9.89E-08 5.37E-08 7.77E-09 0.00E+00 2.26E-08 3.12E-05 3.44E-05 Ce-144 1.83E-03 5.72E-04 9.77E-05 0.00E+00 3.17E-04 3.23E-03 1.05E-04 Pr-143 4.99E-06 1.50E-06 2.47E-07 0.00E+00 8.11E-07 1.17E-04 2.63E-05 Pr-144 1.61E-11 4.99E-12 8.10E-13 0.00E+00 2.64E-12 4.23E-07 5.32E-08 Nd-147 2.92E-06 2.36E-06 1.84E-07 0.00E+00 1.30E-06 8.87E-05 2.22E-05 W-187 4.41E-09 2.61E-09 1.17E-09 0.00E+00 0.00E+00 1.11E-05 2.46E-05 Np-239 1.26E-07 9.04E-09 6.35E-09 0.00E+00 2.63E-08 1.57E-05 1.73E-05

Reference:

Dose Factors for Co-57, Zn-69m, Br-82, Nb-97, Sb-124 and Sb-125 are from NUREG-0172 Age Specific Radiation Dose Commitment Factors for a One Year Chronic Intake, November 1977, Table 6.

All others:

Regulatory Guide 1.109, Table E-9.

NOTE: The tritium dose factor for bone is assumed to be equal to the total body dose factor.

0-ODCM-001 Revision 0024 Page 200 of 227 Table 7.7 (9 of 11)

INHALATION DOSE FACTORS (mrem/pCi inhaled)

INFANT Nuclide bone liver t body thyroid kidney lung gi-lli H-3 4.62E-07 4.62E-07 4.62E-07 4.62E-07 4.62E-07 4.62E-07 4.62E-07 C-14 1.89E-05 3.79E-06 3.79E-06 3.79E-06 3.79E-06 3.79E-06 3.79E-06 Na-24 7.54E-06 7.54E-06 7.54E-06 7.54E-06 7.54E-06 7.54E-06 7.54E-06 P-32 1.45E-03 8.03E-05 5.53E-05 0.00E+00 0.00E+00 0.00E+00 1.15E-05 Cr-51 0.00E+00 0.00E+00 6.39E-08 4.11E-08 9.45E-09 9.17E-06 2.55E-07 Mn-54 0.00E+00 1.81E-05 3.56E-06 0.00E+00 3.56E-06 7.14E-04 5.04E-06 Mn-56 0.00E+00 1.10E-09 1.58E-10 0.00E+00 7.86E-10 8.95E-06 5.12E-05 Fe-55 1.41E-05 8.39E-06 2.38E-06 0.00E+00 0.00E+00 6.21E-05 7.82E-07 Fe-59 9.69E-06 1.68E-05 6.77E-06 0.00E+00 0.00E+00 7.25E-04 1.77E-05 Co-57 0.00E+00 4.65E-07 4.58E-07 0.00E+00 0.00E+00 2.71E-04 3.47E-06 Co-58 0.00E+00 8.71E-07 1.30E-06 0.00E+00 0.00E+00 5.55E-04 7.95E-06 Co-60 0.00E+00 5.73E-06 8.41E-06 0.00E+00 0.00E+00 3.22E-03 2.28E-05 Ni-63 2.42E-04 1.46E-05 8.29E-06 0.00E+00 0.00E+00 1.49E-04 1.73E-06 Ni-65 1.71E-09 2.03E-10 8.79E-11 0.00E+00 0.00E+00 5.80E-06 3.58E-05 Cu-64 0.00E+00 1.34E-09 5.53E-10 0.00E+00 2.84E-09 6.64E-06 1.07E-05 Zn-65 1.38E-05 4.47E-05 2.22E-05 0.00E+00 2.32E-05 4.62E-04 3.67E-05 Zn-69 3.85E-11 6.91E-11 5.13E-12 0.00E+00 2.87E-11 1.05E-06 9.44E-06 Zn-69m 8.98E-09 1.84E-08 1.67E-09 0.00E+00 7.45E-09 1.91E-05 2.92E-05 Br-82 0.00E+00 0.00E+00 9.49E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-83 0.00E+00 0.00E+00 2.72E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-84 0.00E+00 0.00E+00 2.86E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Br-85 0.00E+00 0.00E+00 1.46E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Rb-86 0.00E+00 1.36E-04 6.30E-05 0.00E+00 0.00E+00 0.00E+00 2.17E-06 Rb-88 0.00E+00 3.98E-07 2.05E-07 0.00E+00 0.00E+00 0.00E+00 2.42E-07 Rb-89 0.00E+00 2.29E-07 1.47E-07 0.00E+00 0.00E+00 0.00E+00 4.87E-08 Sr-89 2.84E-04 0.00E+00 8.15E-06 0.00E+00 0.00E+00 1.45E-03 4.57E-05 Sr-90 2.92E-02 0.00E+00 1.85E-03 0.00E+00 0.00E+00 8.03E-03 9.36E-05 Sr-91 6.83E-08 0.00E+00 2.47E-09 0.00E+00 0.00E+00 3.76E-05 5.24E-05 Sr-92 7.50E-09 0.00E+00 2.79E-10 0.00E+00 0.00E+00 1.70E-05 1.00E-04 Y-90 2.35E-06 0.00E+00 6.30E-08 0.00E+00 0.00E+00 1.92E-04 7.43E-05 Y-91m 2.91E-10 0.00E+00 9.90E-12 0.00E+00 0.00E+00 1.99E-06 1.68E-06 Y-91 4.20E-04 0.00E+00 1.12E-05 0.00E+00 0.00E+00 1.75E-03 5.02E-05 Y-92 1.17E-08 0.00E+00 3.29E-10 0.00E+00 0.00E+00 1.75E-05 9.04E-05 Y-93 1.07E-07 0.00E+00 2.91E-09 0.00E+00 0.00E+00 5.46E-05 1.19E-04 Zr-95 8.24E-05 1.99E-05 1.45E-05 0.00E+00 2.22E-05 1.25E-03 1.55E-05 Zr-97 1.07E-07 1.83E-08 8.36E-09 0.00E+00 1.85E-08 7.88E-05 1.00E-04

0-ODCM-001 Revision 0024 Page 201 of 227 Table 7.7 (10 of 11)

INHALATION DOSE FACTORS (mrem/pCi inhaled)

INFANT Nuclide bone liver t body thyroid kidney lung gi-lli Nb-95 1.12E-05 4.59E-06 2.70E-06 0.00E+00 3.37E-06 3.42E-04 9.05E-06 Nb-97 2.44E-10 5.21E-11 1.88E-11 0.00E+00 4.07E-11 2.37E-06 1.92E-05 Mo-99 0.00E+00 1.18E-07 2.31E-08 0.00E+00 1.89E-07 9.63E-05 3.48E-05 Tc-99m 9.98E-13 2.06E-12 2.66E-11 0.00E+00 2.22E-11 5.79E-07 1.45E-06 Tc-101 4.65E-14 5.88E-14 5.80E-13 0.00E+00 6.99E-13 4.17E-07 6.03E-07 Ru-103 1.44E-06 0.00E+00 4.85E-07 0.00E+00 3.03E-06 3.94E-04 1.15E-05 Ru-105 8.74E-10 0.00E+00 2.93E-10 0.00E+00 6.42E-10 1.12E-05 3.46E-05 Ru-106 6.20E-05 0.00E+00 7.77E-06 0.00E+00 7.61E-05 8.26E-03 1.17E-04 Ag-110m 7.13E-06 5.16E-06 3.57E-06 0.00E+00 7.80E-06 2.62E-03 2.36E-05 Sb-124 2.71E-05 3.97E-07 8.56E-06 7.18E-08 0.00E+00 1.89E-03 4.22E-05 Sb-125 3.69E-05 3.41E-07 7.78E-06 4.45E-08 0.00E+00 1.17E-03 1.05E-05 Te-125m 3.40E-06 1.42E-06 4.70E-07 1.16E-06 0.00E+00 3.19E-04 9.22E-06 Te-127m 1.19E-05 4.93E-06 1.48E-06 3.48E-06 2.68E-05 9.37E-04 1.95E-05 Te-127 1.59E-09 6.81E-10 3.49E-10 1.32E-09 3.47E-09 7.39E-06 1.74E-05 Te-129m 1.01E-05 4.35E-06 1.59E-06 3.91E-06 2.27E-05 1.20E-03 4.93E-05 Te-129 5.63E-11 2.48E-11 1.34E-11 4.82E-11 1.25E-10 2.14E-06 1.88E-05 Te-131m 7.62E-08 3.93E-08 2.59E-08 6.38E-08 1.89E-07 1.42E-04 8.51E-05 Te-131 1.24E-11 5.87E-12 3.57E-12 1.13E-11 2.85E-11 1.47E-06 5.87E-06 Te-132 2.66E-07 1.69E-07 1.26E-07 1.99E-07 7.39E-07 2.43E-04 3.15E-05 I-130 4.54E-06 9.91E-06 3.98E-06 1.14E-03 1.09E-05 0.00E+00 1.42E-06 I-131 2.71E-05 3.17E-05 1.40E-05 1.06E-02 3.70E-05 0.00E+00 7.56E-07 I-132 1.21E-06 2.53E-06 8.99E-07 1.21E-04 2.82E-06 0.00E+00 1.36E-06 I-133 9.46E-06 1.37E-05 4.00E-06 2.54E-03 1.60E-05 0.00E+00 1.54E-06 I-134 6.58E-07 1.34E-06 4.75E-07 3.18E-05 1.49E-06 0.00E+00 9.21E-07 I-135 2.76E-06 5.43E-06 1.98E-06 4.97E-04 6.05E-06 0.00E+00 1.31E-06 Cs-134 2.83E-04 5.02E-04 5.32E-05 0.00E+00 1.36E-04 5.69E-05 9.53E-07 Cs-136 3.45E-05 9.61E-05 3.78E-05 0.00E+00 4.03E-05 8.40E-06 1.02E-06 Cs-137 3.92E-04 4.37E-04 3.25E-05 0.00E+00 1.23E-04 5.09E-05 9.53E-07 Cs-138 3.61E-07 5.58E-07 2.84E-07 0.00E+00 2.93E-07 4.67E-08 6.26E-07 Ba-139 1.06E-09 7.03E-13 3.07E-11 0.00E+00 4.23E-13 4.25E-06 3.64E-05 Ba-140 4.00E-05 4.00E-08 2.07E-06 0.00E+00 9.59E-09 1.14E-03 2.74E-05 Ba-141 1.12E-10 7.70E-14 3.55E-12 0.00E+00 4.64E-14 2.12E-06 3.39E-06 Ba-142 2.84E-11 2.36E-14 1.40E-12 0.00E+00 1.36E-14 1.11E-06 4.95E-07

0-ODCM-001 Revision 0024 Page 202 of 227 Table 7.7 (11 of 11)

INHALATION DOSE FACTORS (mrem/pCi inhaled)

INFANT Nuclide bone liver t body thyroid kidney lung gi-lli La-140 3.61E-07 1.43E-07 3.68E-08 0.00E+00 0.00E+00 1.20E-04 6.06E-05 La-142 7.36E-10 2.69E-10 6.46E-11 0.00E+00 0.00E+00 5.87E-06 4.25E-05 Ce-141 1.98E-05 1.19E-05 1.42E-06 0.00E+00 3.75E-06 3.69E-04 1.54E-05 Ce-143 2.09E-07 1.38E-07 1.58E-08 0.00E+00 4.03E-08 8.30E-05 3.55E-05 Ce-144 2.28E-03 8.65E-04 1.26E-04 0.00E+00 3.84E-04 7.03E-03 1.06E-04 Pr-143 1.00E-05 3.74E-06 4.99E-07 0.00E+00 1.41E-06 3.09E-04 2.66E-05 Pr-144 3.42E-11 1.32E-11 1.72E-12 0.00E+00 4.80E-12 1.15E-06 3.06E-06 Nd-147 5.67E-06 5.81E-06 3.57E-07 0.00E+00 2.25E-06 2.30E-04 2.23E-05 W-187 9.26E-09 6.44E-09 2.23E-09 0.00E+00 0.00E+00 2.83E-05 2.54E-05 Np-239 2.65E-07 2.37E-08 1.34E-08 0.00E+00 4.73E-08 4.25E-05 1.78E-05

Reference:

Dose Factors for Co-57, Zn-69m, Br-82, Nb-97, Sb-124 and Sb-125 are from NUREG-0172 Age Specific Radiation Dose Commitment Factors for a One Year Chronic Intake, November 1977, Table 5.

All others:

Regulatory Guide 1.109, Table E-10.

NOTE: The tritium dose factor for bone is assumed to be equal to the total body dose factor.

0-ODCM-001 Revision 0024 Page 203 of 227 Figure 7.1 OFFGAS SYSTEM AND STANDBY GAS TREATMENT SYSTEM EFFLUENT MONITORING

0-ODCM-001 Revision 0024 Page 204 of 227 Figure 7.2 NORMAL BUILDING VENTILATION

0-ODCM-001 Revision 0024 Page 205 of 227 Figure 7.3 PLUME DEPLETION EFFECT (Page 1 of 4)

0-ODCM-001 Revision 0024 Page 206 of 227 Figure 7.3 PLUME DEPLETION EFFECT (Page 2 of 4)

0-ODCM-001 Revision 0024 Page 207 of 227 Figure 7.3 PLUME DEPLETION EFFECT (Page 3 of 4)

0-ODCM-001 Revision 0024 Page 208 of 227 Figure 7.3 PLUME DEPLETION EFFECT (Page 4 of 4)

0-ODCM-001 Revision 0024 Page 209 of 227 Figure 7.4 VERTICAL STANDARD DEVIATION OF MATERIAL IN A PLUME

0-ODCM-001 Revision 0024 Page 210 of 227 Figure 7.5 RELATIVE DEPOSITION (Page 1 of 4)

0-ODCM-001 Revision 0024 Page 211 of 227 Figure 7.5 RELATIVE DEPOSITION (Page 2 of 4)

0-ODCM-001 Revision 0024 Page 212 of 227 Figure 7.5 RELATIVE DEPOSITION (Page 3 of 4)

0-ODCM-001 Revision 0024 Page 213 of 227 Figure 7.5 RELATIVE DEPOSITION (Page 4 of 4)

0-ODCM-001 Revision 0024 Page 214 of 227 SECTION 8.0 TOTAL DOSE

0-ODCM-001 Revision 0024 Page 215 of 227 8.0 TOTAL DOSE To determine compliance with 40 CFR 190, the annual dose contributions to the maximum individual from BFN radioactive effluents and all other nearby uranium fuel cycle sources will be considered. The annual dose to the maximum individual will be conservatively estimated by: first, summing the total body air submersion dose, and the maximum (critical) organ dose (except thyroid) from gaseous effluents; the total body dose, and maximum organ dose (except thyroid) from liquid effluents for each quarter calculated in accordance with Sections 6.6 and 7.7. Then to this sum for each quarter is added any identifiable increase in direct radiation dose levels attributable to the plant as determined by the REMP outlined in Section 9.0. These quarterly sums are then conservatively summed for the four calendar quarters to estimate the maximum individual dose for the year.

This dose is compared to the limit in Control 1.2.3, i.e., 25 mrem per year to the total body or any organ (except thyroid), to determine compliance.

The total annual thyroid dose to the maximum individual will be conservatively estimated in the following manner. For each calendar quarter, a total dose will be obtained by summing the total body gaseous submersion dose, the gaseous thyroid dose, the liquid total body dose, and the liquid thyroid dose. To this sum for each quarter is added any identifiable increase in direct radiation dose levels attributable to the plant as determined by the REMP outlined in Section 9.0. These quarterly sums are then added together to estimate the maximum individual thyroid dose for the year. This dose is compared to the limit in Control 1.2.3, i.e., 75 mrem per year to determine compliance.

0-ODCM-001 Revision 0024 Page 216 of 227 SECTION 9.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

0-ODCM-001 Revision 0024 Page 217 of 227 9.1 MONITORING PROGRAM DESCRIPTION A Radiological Environmental Monitoring Program (REMP) as described in Tables 9.1, 9.2, and 9.3 and in Figures 9.1, 9.2, and 9.3 shall be conducted. Results of this program shall be reported in accordance with ODCM Administrative Control 5.1.

The atmospheric REMP shall consist of 11 monitoring stations from which samples of air particulates and radioiodine shall be collected.

The terrestrial monitoring program shall consist of the collection of milk, soil, drinking water, and food crops as provided in Tables 9.1 and 9.2. In addition, direct gamma radiation levels will be measured at 40 or more locations in the vicinity of the plant.

The reservoir sampling program shall consist of the collection of samples of surface water, sediment, and fish.

9.2 DETECTION CAPABILITIES Analytical techniques shall be such that the detection capabilities listed in Table 2.3-2 are achieved.

9.3 LAND USE CENSUS A land use survey shall be conducted in accordance with the requirements in Control 1.3.2. The results of the survey shall be reported in the Annual Radiological Environmental Operating Report.

9.4 INTERLABORATORY COMPARISON PROGRAM Analyses shall be performed on radioactive materials supplied as part of an Interlaboratory Comparison Program which has been approved by the NRC.

A summary of the results obtained in the intercomparison shall be included in the Annual Radiological Environmental Operating Report.

If analyses are not performed as required corrective actions taken to prevent a recurrence shall be reported in the Annual Radiological Environmental Operating Report.

0-ODCM-001 Revision 0024 Page 218 of 227 Table 9.1 (1 of 5)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Exposure Pathway Number of Samples and/or and Sample Sampling and Type and Frequency Sample Locations Collection Frequency of Analysis AIRBORNE Particulates 6 samples from Continuous sampler Particulate sampler.

locations (in operation with sam- Analyze for gross different sectors) ple collection as beta radioactivity at or near the required by dust 24 hrs following site boundary loading but at least filter change.

(LM-1, LM-2, once per 7 days. Perform gamma isotopic LM-3, LM-4, analysis on each LM-6, and LM-7) sample when gross beta activity is >10 2 samples from times the average of control locations control samples.

greater than 10 Perform gamma miles from isotopic analysis the plant on composite (by (RM-1 and RM-6) location) sample at least once per 3 samples from 31 days.

locations in communities approx-imately 10 miles from the plant (PM-1, PM-2 and PM-3)

Radioiodine Same locations as Continuous sampler I-131 every 7 days air particulates operation with charcoal canister collection at least once per 7 days SOIL Samples from same Once every year Gamma scan, Sr-89, locations as air Sr-90 once per year particulates DIRECT 2 or more dosi- At least once per Gamma dose once per meters placed at 92 days 92 days locations (in dif-ferent sectors) at or near the site boundary in each of the 16 sectorsd

0-ODCM-001 Revision 0024 Page 219 of 227 Table 9.1 (2 of 5)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Exposure Pathway Number of Samples and/or and Sample Sampling and Type and Frequency Sample Locations Collection Frequency of Analysis DIRECT (con- 2 or more dosi- At least once per Gamma dose once per tinued) meters placed at 92 days. 92 days.

stations located approximately 5 miles from the plant in each of the 16 sectorsd 2 or more dosi-meters in at least 8 additional locations of special interestd WATERBORNE Surface 1 sample upstream Collected by auto- Gamma scan at (TRM 306.0) matic sequential- least once per 31 1 sample im- type sampler with days. Composite for mediately down- composite sample tritium at least once stream of dis- taken at least once per 92 days charge (TRM 293.5) per 31 daysa.

Drinking 1 sample at the Collected by auto- Gross beta and gamma first potable matic sequential- scan at least once surface water type sampler with per 31 days. Compo-supply downstream composite sample site for from the plant taken at least once tritium at least (TRM 286.5) per 31 daysa,b once per 92 days.

a Composite samples shall be collected by collecting an aliquot at intervals not exceeding 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.

b This assumes that the nearest drinking water intake is >3.0 mile downstream of the plant discharge. If a drinking water intake is constructed within 3.0 miles downstream of the plant discharge, sampling and analysis shall be every 2 weeks.

d. The number of direct radiation monitoring stations may be reduced according to geographical limitations (e.g., a sector located over water or inaccessible terrain will not contain a monitoring station).

0-ODCM-001 Revision 0024 Page 220 of 227 Table 9.1 (3 of 5)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Exposure Pathway Number of Samples and/or and Sample Sampling and Type and Frequency Sample Locations Collection Frequency of Analysis Drinking 3 additional sam- Grab sample taken Gross beta and gamma (continued) ples of potable at least once per scan at least once surface water 31 days. per 31 days.

downstream from Composite for the plant tritium at least once (TRM 274.9, per 92 days TRM 259.8, and TRM 259.6) 1 sample Collected by auto-at a control matic sequential-locationc type sampler with (TRM 306) composite sample taken at least once per 31 daysa GROUND 1 sample adjacent Collected by auto- Composite for gamma to the plant matic sequential- scan and tritium (well 6R) type sampler with at least once per composite sample 92 days.

taken at least once per 31 days.

1 sample at a Grab sample taken Composite for gamma control location at least once per scan and tritium upgradient from 31 days. at least once per the plant 92 days.

(Farm B)

AQUATIC Shoreline 1 sample At least once per Gamma scan of each Sediment upstream from 184 days sample a recreational area (TRM 305) a Composite samples shall be collected by collecting an aliquot at intervals not exceeding 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.

c The surface water control sample shall be considered a control for the drinking water sample.

0-ODCM-001 Revision 0024 Page 221 of 227 Table 9.1 (4 of 5)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Exposure Pathway Number of Samples and/or and Sample Sampling and Type and Frequency Sample Locations Collection Frequency of Analysis Shoreline 1 sample from At least once per Gamma scan of each Sediment each of at least 184 days sample (continued) two downstream locations with with recreational use. (TRM 293 and 279.5)

INGESTION Milk *** At least once per Gamma scan and I-131 15 days when animals on each sample.

are on pasture; at Sr-89 and Sr-90 at least once per 31 least once per 92 days

        • days at other times.
      • Samples from milking animals in three locations within 5 km distance having the highest dose potential as identified in the annual land use survey. If there are none, then one sample from milking animals in each of three areas between 5 to 8 km distant where doses are calculated to be greater than 1 mrem per year. Milk samples will be collected as required by FSAR Section 2.6.2.2. There are currently no locations meeting this criteria.
        • One sample from milking at a control location 15 to 30 km distant and in the least prevalent wind direction. Samples are not required from the control location if no indicator locations are sampled.

Fish 2 samples repre- At least once per Gamma scan at least senting commercial 184 days once per 184 days on and game species edible portions.

in Guntersville Reservoir above the plant 2 samples repres-enting commercial and game species in Wheeler Reservoir near the plant

0-ODCM-001 Revision 0024 Page 222 of 227 Table 9.1 (5 of 5)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Exposure Pathway Number of Samples and/or and Sample Sampling and Type and Frequency Sample Locations Collection Frequency of Analysis Fruits & Samples of food At least once per Gamma scan on edible Vegetables crops such as year at time of portion corn, green beans, harvest tomatoes, and potatoes grown at private gardens and/or farms in the immediate vicinity of the plant 1 sample of each of the same foods grown at greater than 10 miles distance from the plant Vegetation Samples from Once per 31 days I-131, gamma scan (pasturage) farms producing once per 31 days.

milk but not providing a milk sample.

Control sample from 1 control dairy farm.

Vegetation sampled only if milk is produced but not sampled.

0-ODCM-001 Revision 0024 Page 223 of 227 Table 9.2 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM SAMPLING LOCATIONS Map Approximate Indicator (I)

Location Distance or Samples Number a Station Sector (Miles) Control (C) Collectedb 1 PM-1 NW 13.8 I AP, CF, S 2 PM-2 NE 10.9 I AP, CF, S 3 PM-3 SSE 7.5 I AP, CF, S 4 LM-7 W 2.1 I AP, CF, S 5 RM-1 W 31.0 C AP, CF, S 6 RM-6 E 23.4 C AP, CF, S 7 LM-1 NNW 1.0 I AP, CF, S 8 LM-2 NNE 0.9 I AP, CF, S 9 LM-3 ENE 0.9 I AP, CF, S 10 LM-4 NNW 1.7 I AP, CF, S 11 LM-6 SSW 3.0 I AP, CF, S 12 Farm B NNW 6.8 C W 24 TRM 306.0 - 12.0d C PW, SW 25 TRM 259.6 - 34.4d I PW 26 TRM 274.9 - 19.1 d I PW 28 TRM 293.5 - 0.5d I SW 70 TRM 259.8 - 34.2d I PW 71 TRM 286.6 - 7.5d I PW 72 TRM 305 11.0d C SS 73 TRM 293 1.0d I SS 74 TRM 279.5 14.5d I SS Wheeler Reservoir I F (TRM 275-349)

Guntersville Reservoir C F (TRM 349-424) 76 Well 6R NW 0.12 I W a See Figures 9.1, 9.2, and 9.3 b Sample codes:

AP = Air particulate filter S = Soil SS = Shoreline Sediment CF = Charcoal Filter SW = Surface Water M = Milk F = Fish V = Vegetation PW = Public Water W = Well Water c TRM = Tennessee River Mile d Miles from plant discharge (TRM 294)

0-ODCM-001 Revision 0024 Page 224 of 227 Table 9.3 ENVIRONMENTAL DOSIMETER LOCATIONS Map Approximate Onsite (On)a Location Distance or Number Station Sector (Miles) Offsite (Off) 1 NW-3 NW 13.8 Off 2 NE-3 NE 10.9 Off 3 SSE-2 SSE 7.5 Off 5 W-3 W 31.0 Off 6 E-3 E 23.1 Off 7 N-1 NNW 1.0 On 8 NNE-1 NNE 0.9 On 9 ENE-1 ENE 0.9 On 10 NNW-2 NNW 1.7 On 38 N-2 N 5.0 Off 39 NNE-2 NNE 0.7 On 40 NNE-3 NNE 5.2 Off 41 NE-1 NE 0.8 On 42 NE-2 NE 5.0 Off 43 ENE-2 ENE 6.2 Off 44 E-1 E 0.8 On 45 E-2 E 5.2 Off 46 ESE-1 ESE 0.9 On 47 ESE-2 ESE 3.0 Off 48 SE-1 SE 0.5 On 49 SE-2 SE 5.4 Off 50 SSE-1 SSE 5.1 Off 51 S-1 S 3.1 Off 52 S-2 S 4.8 Off 53 SSW-1 SSW 3.0 Off 54 SSW-2 SSW 4.4 Off 55 SW-1 SW 1.9 On 56 SW-2 SW 4.7 Off 58 WSW-1 WSW 2.7 Off 59 WSW-2 WSW 5.1 Off 60 WSW-3 WSW 10.5 Off 61 W-1 W 1.9 On 62 W-2 W 4.7 Off 64 WNW-1 WNW 3.3 Off 65 WNW-2 WNW 4.4 Off 66 NW-1 NW 2.2 Off 67 NW-2 NW 5.3 Off 68 NNW-1 NNW 1.0 On 69 NNW-3 NNW 5.2 Off 75 N-1A N 1.0 ON aDosimeters designated onsite are those located two miles or less from the plant.

Dosimeters designated offsite are those located more than two miles from the plant.

0-ODCM-001 Revision 0024 Page 225 of 227 Figure 9.1 RADIOLOGICAL ENVIRONMENTAL SAMPLING LOCATIONS WITHIN 1 MILE OF THE PLANT

0-ODCM-001 Revision 0024 Page 226 of 227 Figure 9.2 RADIOLOGICAL ENVIRONMENTAL SAMPLING LOCATIONS FROM 1 TO 5 MILES FROM THE PLANT

0-ODCM-001 Revision 0024 Page 227 of 227 Figure 9.3 RADIOLOGICAL ENVIRONMENTAL SAMPLING LOCATIONS GREATER THAN 5 MILES FROM THE PLANT

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