Revision as of 20:42, 17 May 2018

Text

Donald C. Cook, Units 1 and 2, Submittal of 2017 Annual Radioactive Effluent Release Report
	ML18123A348
Person / Time
Site:	Cook
Issue date:	04/30/2018
From:	Scarpello M K; American Electric Power, Indiana Michigan Power Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	AEP-NRC-2018-35
	Download: ML18123A348 (326)
	v • d • e

m INDIANA MICHIGAN POWER" A unit of American Electric Power April 30, 2018 Docket Nos.: 50-315 50-316 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Donald C. Cook Nuclear Plant Units 1 and 2 Indiana Michigan Power Cook Nuclear Plant One Cook Place Bridgman, Ml 49106 lndianaMichiganPower.com AEP-NRC-2018-35 10 CFR 50.36a 2017 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT In accordance with Technical Specification 5.6.3, Indiana Michigan Power Company, the licensee for Donald* C. Cook Nuclear Plant (CNP) Units 1 and 2, is providing the Annual Radioactive Effluent Release Report as Enclosure 1 to this letter. This report covers the period January 1, 2017, through December 31, 2017. Additionally, this letter provides updated revisions to the 2013, 2014, 2015, and 2016 Annual Radioactive Effluent Release Reports (Enclosures 2 through 5), which incorporate changes to reported tritium values and their associated liquid dose. Revisions to the reports were necessitated when it was identified that the method used to analyze tritium values produced conservative results due to equipment limitations of the liquid scintillation counters. This condition was entered into CNP's corrective action program and all affected sample results were identified and corrected. This letter contains no new or modified regulatory commitments. Should you have any questions, please contact me at (269) 466-2649. Sincerely, Jni,~l(kL Michael K. Scarpello Regulatory Affairs Director

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Enclosures:

AEP-NRC-2018-35 1. Donald C. Cook Nuclear Plant Units 1 and 2 -2017 Annual Radioactive Effluent Release Report 2. Donald C. Cook Nuclear Plant Units 1 and 2 -2016 Annual Radioactive Effluent Release Report, Revision 1 3. Donald C. Cook Nuclear Plant Units 1 and 2 -: 2015 Annual Radioactive Effluent Release Report, Revision 1 4. Donald C. Cook Nuclear Plant Units 1 and 2 -2014 Annual Radioactive Effluent Release Report, Revision 1 . 5. Donald C. Cook Nuclear Plant Units 1 and 2 -2013 Annual Radioactive Effluent Release Report, Revision 1 c: R. J. Ancona -MPSC A. W. Dietrich -Washington, D.C. MDEQ -RMD/RPS NRC Resident Inspector K. S. West-NRC, Region 111 A. J. Williamson -AEP Ft. Wayne, w/o enclosures l_ ENCLOSURE 1 to AEP-NRC-2018-35 DONALD C. COOK NUCLEAR PLANT UNITS 1 AND 2 2017 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT TABLE OF CONTENTS Page Table of Contents 1 I. IL III. IV. V. VI. VII. VIII. IX. Introduction 1 Radioactive Releases and Radiological Impact on Man 1 Liquid Releases 2 Gaseous Releases 2 Solid Waste Disposition 2 Meteorological 2 Offsite Dose Calculation Manual (ODCM) Changes 3 Total Dose 3 Radiation Monitors Inoperable Greater Than 30 Days 4 Noteworthy Conditions Identified in 2017 4 Conclusion 5 Errata 5 LIST OF APPENDICES Title Appendix Al.1 2017 Effluent and Waste Disposal Annual Report -Supplemental Information Al .2 Summary of Maximum Individual Doses: First Quarter, Second Quarter, Third Quarter, and Fourth Quarter 2017 Al .3 2017 Groundwater Protection Initiative (GPI) Sample Data A2.l Hours at Each Wind Speed and Direction: First Quarter, 2017 A2.2 Hours at Each Wind Speed and Direction: Second Quarter, 2017 A2.3 Hours at Each Wind Speed and Direction: Third Quarter, 2017 A2.4 Hours at Each Wind Speed and Direction: Fourth Quarter, 2017 A3.0 Offsite Dose Calculation Manual (ODCM) Changes 1 I. INTRODUCTION This report discusses the radioactive discharges from Unit 1 and Unit 2 of the Donald C. Cook Nuclear Plant (CNP) during 2017. This is in accordance with the requirements of CNP Technical Specification (TS) 5.6.3. The table below summarizes the pertinent statistics concerning the Plant's operation during the period from January 1, 2017, to December 31, 2017. The data in this table and the descriptive information on plant operation are based upon the respective unit's Monthly Operating Reports, Performance Indicators, and Control Room Logs for 2017. Parameter Unit 1 Unit2 Gross Electrical Energy Generation 7,497,698 10,638,976 e awattHour 79.1 99.5 80.5 101.0 Unit 1 entered the reporting period in Mode 1 at Nominal Full Power (NFP). Small power adjustments were made to facilitate main turbine valve testing throughout the year. The unit performed a normal downpower and was manually tripped on September 13, 2017, entering refueling outage U1C28. The unit attained criticality on November 26, 2017, and attained NFP on December 2, 2017. The unit exited the reporting period at NFP. Unit 2 entered the reporting period in Mode 5 preparing for startup. Small power adjustments were made to facilitate main turbine valve testing throughout the year. The unit attained criticality on January 1, 2017, and attained NFP on January 14, 2017. The unit exited the reporting period at NFP. II. RADIOACTIVE RELEASES AND RADIOLOGICAL IMPACT ON MAN Since a number of release points are common to both units, the release data from both units are combined to form this two-unit, Annual Radioactive Effluent Release Report (ARERR). Appendix Al.1 through A2.4 of this report present the information in accordance with Section 5.6.3 of Appendix A to the Facility Operating Licenses, as specified in the Technical Specifications, Regulatory Guide 1.21, and 10 CPR Part 50, Appendix I. The "MIDAS System" is a computer code that calculates doses due to radionuclides that were released from the CNP. All liquid and gaseous releases were well within Offsite Dose Calculation Manual (ODCM) limits and federal limits. There were no abnormal liquid or gaseous releases in 2017. There were no spills or leaks of radioactive liquids requiring voluntary notifications per the Industry Groundwater 1 Protection Initiative or site procedures. The Independent Spent Fuel Storage Installation (ISFSD impacts are included with Unit 1 and Unit 2 statistics. The ISFSI cask system does not create any radioactive materials or have any radioactive waste treatment systems. Therefore, specific operating procedures for the control of radioactive effluents are not required. Technical Specifications for the Storm 100 Cask System, Specification 3.1.1, Multi-Purpose Canister (MPC), provides assurance that there are not radioactive effluents from the ISFSI. Liquid Releases During 2017 there were 79 liquid batch releases performed. The number of liquid batch releases for the 1st, 2°d, 3rd, and 4th quarters in 2017 were 15, 10, 25, and 29, respectively. Estimated doses (in mrem) to maximally exposed individuals via the liquid release pathways are given in Appendix Al.2 of this report. Gaseous Releases During the first quarter of 2017 there were four batch releases from Gas Decay Tanks (GDT) and 138 Containment Pressure Reliefs (CPR). During the second quarter there was one batch release from GDTs and 91 CPR. During the third quarter there were three batch releases from GDTs, one containment purge, one system tank vent, and 78 CPR. During the fourth quarter there were seven batch releases from GDTs and 60 CPR. The CPR continue to be listed as batch releases as described in Nuclear Regulatory Commission Inspections 50-315/89017 (DRSS); 50-316/89016 (DRSS) for CNP, dated June 13, 1989. Doses continue to be calculated utilizing continuous criteria as allowed by NUREG-0133. There were a total of 15 GDT releases, one containment purge, one system tank vent, and 367 CPR gaseous batch releases made during 2017. In calculating the dose consequences for continuous and batch gaseous releases during 2017, the meteorological data measured at the time of the release were used. The estimated doses (in mrem) to maximally exposed individuals via the gaseous release pathways are given in Appendix Al.2 of this report. For individuals that are within the site boundary, the occupancy time is sufficiently low to compensate for any increase in the atmospheric diffusion factor above that for the site boundary. Solid Waste Disposition There were 31 shipments of radioactive waste made during 2017. These included shipments made from the site to various radioactive waste processors for ultimate disposal. III. METEOROLOGICAL Appendices A2.l, A2.2, A2.3, and A2.4 of this report contain the cumulative joint 2 frequency distribution tables of wind speed and wind direction, corresponding to the various atmospheric stability classes for the first, second, third, and fourth quarters of 2017. Hourly meteorological data is available for review and/or inspection upon request. N. OFFSITE DOSE CALCULATION MANUAL (ODCM) CHANGES The ODCM, PMP-6010-0SD-001, was not revised during the report period. V. TOTAL DOSE Section 3.2.5 of the ODCM requires that the dose or dose commitment to a real individual from all uranium fuel cycle sources in Berrien County be limited to no more than 25 mrem to the total body or any organ ( except the thyroid, which is limited to no more than 7 5 mrem) over a period of 12 consecutive months to show conformance with the requirements of 40 CFR Part 190. The maximum cumulative dose to an individual from liquid and gaseous effluents during 2017 was well within the ODCM limits. Measurements using thermoluminescent dosimeters (TLD) at 12 onsite stations indicate that the dose due to direct radiation is consistent with preoperational and current control (background) levels. This is fully evaluated in CNP's 2017 Annual Radiological Environmental Operating Report. Additional TLD dosimetry installed by Radiation Protection department programs monitor dose received by individuals on site as visitors. The annual dose to the maximum individual will be estimated by first, summing the quarterly total body air dose, the quarterly skin air dose, the quarterly critical organ dose from iodines and particulates (I&P), the quarterly total body dose from liquid effluents, the quarterly critical organ dose from liquid effluents, and the Radiological Environmental Monitoring Program onsite direct radiation TLD data. These quarterly values are summed with the annual Carbon-14 dose and compared to the annual total body limit for conservative reasons. The table that follows here represents the above written description: Dose (mrem) 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr l&P 1.43E-02 2.11E-02 2.92E-02 2.86E-02 Total Body Air 2.50E-04 7.50E-04 1.40E-03 3.30E-04 Skin 4.10E-04 1.20E-03 2.50E-03 9.10E-04 Liquid TB 2.71E-03 5.34E-03 2.89E-02 2.37E-02 Liquid Organ 2.SOE-03 5.37E-03 2.89E-02 2.39E-02 C14 (Annual) 2.25E+OO Direct Radiation 0 0 0 0 Total 2.05E-02 3.38E-02 9.09E-02 2.33E+OO Grand Total Dose (Total Body or anv other Organ) mrem 2.47E+OO Annual Dose Limit (mrem) 25 Percent of limit 9.89E+OO The following data reflects a comparison with 2009 annual dose data (the last year without calculating C-14 dose), 2017 annual dose data, and 2017 annual dose data with C-14 added. This indicates that 2017 annual dose was 'typical' for a single unit outage year in regards to 3 radioactive effluents. The table is presented as follows: Annual Dose (mrem) % of limit t-------+----2009 2.60E-01 1.04 -----+-------! 2017 2.23E-01 0.89 ------+------< 2017 with C-14 2.47 9.89 -----~----~ VI. RADIATION MONITORS INOPERABLE GREATER THAN 30 DAYS There were no release pathways unmonitored for greater than 30 days. Vil. NOTEWORTHY CONDITIONS IDENTIFIED IN 2017 There was an issue identified where the accuracy of tritium analyses was found to be adversely impacted due to liquid scintillation counter problems. Investigations determined that the problem affected all high level tritium samples dating back to 2013. Corrective Action 2017-4835 was initiated and resolved the counter problem. One of the actions taken was to revise the ARERRs perfonned during the affected period and to submit "Errata" for any impacted years. Those revised ARERRs have been enclosed in this report as noted in Section IX. Carbon-14 Supplemental Information for the 2017 Annual Radioactive Effluent Release Report. C-14 has a 5730 year half-life and is a naturally occurring radionuclide produced by cosmic ray interactions in the atmosphere. C-14 is a relatively low energy beta emitter. Nuclear weapons testing in the 1950s and 1960s significantly increased the amount of C-14 in the atmosphere. C-14 is also produced in commercial nuclear reactors, but the amounts produced are much less than those produced naturally, from weapons testing, or coal burning power plants. The inventory of C-14 in Earth's biosphere is about 300 million Curies, of which most is in the oceans Since the U.S. Nuclear Regulatory Commission (NRC) published Regulatory Guide (RG) 1.21, Revision 1, in 1974, the analytical methods for determining C-14 have improved. Coincidentally, the radioactive effluents from commercial nuclear power plants over the same period have decreased to the point that C-14 is likely to be a principal radionuclide in gaseous effluents. Based on these reasons and a desire to adjust policy to align with international standards, the nuclear industry was requrred to report, starting m 2010, the quantity and dose impact of C-14 here in the United States. The dose will be reported both with and without C-14 so a comparison to 2009 can be made, keeping in mind the differing standards. The quantity of C-14 released to the environment can be estimated by use of a C-14 source term scaling factor based on power generation (Ref. RG 1.21, Revision 2). A recent study recommends a source term scaling factor of approximately 9.0 to 9.8 Curies/GWe-yr for a 4 Westinghouse Pressurized Water Reactor (Ref. EPRI 1021106, "Estimation of Carbon-14 in Nuclear Plant Gaseous Effluents", dated December 23, 2010). A scaling factor of 9.4 Curies/GWe-yr was assumed for this report. Using this source term scaling factor and actual electrical generation (in MWH) produced during 2017 results in a site total of 19.5 Curies produced. C-14 releases from Pressurized Water Reactors (PWR) occur primarily as a mix of organic carbon (methane) and inorganic carbon (carbon dioxide). As a general rule, C-14 in the primary coolant is essentially all organic with a large fraction as gas. Any time the primary coolant is exposed to an oxidizing environment ( during shutdown or refueling), a slow transformation from an organic to an inorganic species occurs. Various studies documenting measured C-14 releases from PWRs suggest an average 80% organic fraction with the remainder being carbon dioxide, of which 70% is. assumed to be released from gaseous batch releases. This equates to 2. 73 Curies released as carbon dioxide which is available for the food pathway through photosynthesis to vegetation. Dose is calculated utilizing the methodology prescribed in RG 1.109, Appendix C, with the vegetation dose being the predominant. A 'p' factor of 0.33 is determined utilizing the time of batch gaseous releases performed during 2017 and the time available for photosynthesis in plants. A further reduction to the vegetation and leafy vegetable dose is warranted due to the limited growing season in Michigan, which was conservatively limited to nine months. The final results indicated a calculated organ dose from C-14 to a child at the site boundary of 1.88 mrem to the bone and a whole body dose of0.374 mrem, for a combined total C-14 dose of 2.25 mrem. This is less than the dose limit of 15 mrem/unit to any organ prescribed in 10 CFR 50, Appendix I, and the 40 CFR Part 190 limit of 25 mrem for total body and for any organ ( ;95 mrem for thyroid). VIII. CONCLUSION Based on the information presented in this report, it is concluded that CNP Units 1 and 2 performed their intended design function with no demonstrable adverse effect on the health and safety of the general public. IX. ERRATA There are errata documents attached for 2017. The errata includes updated revisions of the 2013, 2014, 2015, and 2016 reports, incorporating changes to reported tritium values and their associated liquid dose. Changes were necessitated due to problems associated with liquid scintillation counters, and all affected sample results were identified and corrected per our Corrective Actions Program. These revisions do not show any adverse impact on the health and safety of the general public. 5 I 2017 Effluent and Waste Disposal Annual Report SUPPLEMENTAL INFORMATION Facility: Donald C. Cook Nuclear Plant Licensee: Indiana Michigan Power Company 1 REGULATORY LIMITS 1.1 Noble Gases The air dose in unrestricted areas due to noble gases released in gaseous effluents shall be limited to the following: 1.1.1 During any calendar quarter, to~ 5 mrad/unit for gamma radiation and~ 10 mrad/unit for beta radiation. 1.1.2 During any calendar year, to~ 10 mrad/unit for gamma radiation and~ 20 mrad/unit for beta radiation. 1.2 Iodines -Particulates 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 effluents released to unrestricted areas shall be limited to the following: 1.2.1 During any calendar quarter to~ 7.5 mrem/unit to any organ. 1.2.2 During any calendar year to~ 15 mrem/unit to any organ. 1.3 Liquid Effluents The dose or dose commitment to an individual from radioactive material in liquid effluents released to unrestricted areas shall be limited: 1.3.1 During any calendar quarter to~ 1.5 mrem/unit to the total body and to~ 5 mrem/unit to any organ. 1.3.2 During any calendar year to~ 3 mrem/unit to the total body and to~ 10 mrem/unit to any organ. Al.1-1 2017 Effluent and Waste Disposal Annual Report 1.4 Total Dose The dose or dose conunitment to a real individual 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 12 consecutive months. 2 MAXIMUM PERMISSIBLE CONCENTRATIONS 2.1 Gaseous Effluents The dose rate due to radioactive materials released in gaseous effluents from the site shall be limited to the following: 2.1.1 For noble gases: 500 mrem/yr to the total body and 3000 mrem/yr to the skin. 2.1.2 For all radioiodines and for all radioactive materials in particulate form and radionuclides (other than noble gases) with half-lives greater than eight days: 1500 mrem/yr to any organ. The above limits are provided to insure that radioactive material discharged in gaseous effluents will not result in the exposure of an individual in an unrestricted area to annual average concentrations exceeding the limits in 10 CFR Part 20, Appendix B, Table 2, Column 1. 2.2 Liquid Effluents The concentration of radioactive material released at any time from the site to unrestricted areas shall be limited to 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 2 x 10-4 µCi/ml total activity. Al.1-2 2017 Effluent and Waste Disposal Annual Report 3 AVERAGE ENERGY The average energy (E) of the radionuclide mixture in releases of fission and activation gases as defined in Regulatory Guide 1.21, Appendix B, Section A.3 is not applicable because the limits used for gaseous releases are based on calculated dose to members of the public. Release rates are calculated using an isotopic mix from actual samples rather than average energy. 4 MEASUREMENTS and APPROXIMATIONS of TOTAL RADIOACTIVITY 4.1 Fission and Activation Gases Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. 4.2 Iodines Sampled on iodine adsorbing media, and analyzed on an 8192 channel analyzer and HpGe detector. 4.3 Particulates Sampled on a glass filter and analyzed on an 8192 channel analyzer and HpGe detector. Sr-89 and Sr-90 analyses are performed by offsite vendor. 4.4 Liquid Effluents Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. Fe-55, Sr-89 and Sr-90 analyses are performed by an offsite vendor. Ni-63 is also currently being analyzed by the offsite vendor in response to evaluation of the 10 CFR 61 sample results. Al.1-3 2017 Effluent and Waste Disposal Annual Report 5 BATCH RELEASES 5 .1 Liquid 5.1.1 Number of batch releases: 15 releases in the 1st quarter, 2017 -2nd 10 releases in the quarter, 2017 25 releases in the 3rd quarter, 2017 -4th 29 releases in the quarter, 2017 5 .1. 2 Total time period for batch releases: 46,897 minutes 5.1.3 Maximum time for a batch release: 1,648 minutes 5.1.4 Average time period for batch release: 594 minutes 5.1.5 Minimum time period for a batch release: 150 minutes 5.1.6 Average stream flow during periods of release of effluent into a flowing stream: 7.59E+5 gpm circulating water Al.1-4 2017 Effluent and Waste Disposal Annual Report 5. 2 Gaseous 5.2.1 Number of batch releases: 142 releases in the l st quarter, 2017 92 releases in the 2nd quarter, 2017 -3rd 83 releases in the quarter, 2017 -4th 67 releases in the quarter, 2017 5.2.2 Total time period for batch releases: 11,315 minutes 5.2.3 Maximum time for a batch release: 354 minutes 5.2.4 Average time period for batch release: 29.5 minutes 5.2.5 Minimum time period for a batch release: 5 minutes Al.1-5 2017 Effluent and Waste Disposal Annual Report 6 ABNORMAL RELEASES 6.1 Liquid 6 .1.1 Number of Releases: 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.1.2 Total activity released (Ci): l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.2 Gaseous 6.2.1 Number of Releases: 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.2.2 Total activity released (Ci): 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 Al.1-6 2017 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! 11. FISSION GASES I H3 AR41 KR85 XE133 XE135 XE131m XE133m XE135m I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES I131 I132 I133 I Ci I Ci I Ci !Total for Period I Ci 13. PARTICULATES MN54 C060 CS137 I Ci I Ci I Ci !Total for Period I Ci 2.67E+Ol 2.67E+Ol 3.59E-06 3.87E-05 4.23E-05

DENOTES SUPPLEMENTAL ISOTOPES 1. 67E+Ol 1.67E+Ol 6.31E-06 9.03E-05 9.66E-05 Al.1-7 1. 69E+Ol 1.69E+Ol 1. 93E-05 1. 52E-04 1. 71E-04 2.66E+Ol 2.66E+Ol 3.07E-05 9.SlE-05 1.29E-04 2017 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES BATCH MODE JNuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! Jl. FISSION GASES I H3 AR41 KR85 XE131M XE133M XE133 XE135m XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci [Total for Period I Ci [ 2. IODINES I131 I133 I Ci I Ci [Total for Period I Ci [3. PARTICULATES CS137 I

BR82 I Ci I Ci [Total for Period I Ci 1. 06E-01 3.61E-01 6.45E-01 8.52E-02 l. llE-03 1. 20E+OO

DENOTES SUPPLEMENTAL ISOTOPES l.05E-01 4.88E-01 1.03E-01 1. 62E-01 2.28E-03 8.60E-01 Al.1-8 1. 69E-01 4.41E-01 4.48E-01 1. 31E-01 1.59E-04 l.19E+OO 8.20E-02 1.50E-01 4.48E-01 l.32E-04 3.39E-02 7.14E-01 2017 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES Units 1st 2nd 3rd 4th I Est. I Quarter I Quarter I Quarter I Quarter !Total I I I I IError,%1 I A. I FISSION AND I !ACTIVATION GASES I 11. I Total Release I Ci I l.09E+OOI 7.55E-011 1.02E+OOI 6.31E-01J 11.4 12. !Average release I Irate for period luCi/secJ 1.40E-01J 9.61E-02J 1.28E-01J 7.94E-02J I I I I I I 13. I Percent of 1% Gamma I l.llE-021 2.63E-021 5.0lE-021 l.lOE-021 I applicable limit* I Beta I 5.16E-03J 5.07E-031 1.19E-02J 7.75E-031 I B. I IODINES 11. JTotal I-131 I Ci I 3.59E-061 6.31E-06J 1.93E-051 3.07E-05J 22.9 J2. !Average release I Irate for period JuCi/secJ 4.62E-07J 8.02E-07J 2.42E-061 3.86E-061 I I I I I I J 3. I Percent of I % I I applicable limit* I IC. I PARTICULATES 11. I Particulates with! Ci I Jhalf lives>8 days! I 1.32E-06J 2.29E-061 6.90E-061 1.lOE-051 I I I I I I O.OOE+OOI O.OOE+OOJ O.OOE+OOJ O.OOE+OOI N/A I I I I I J2. !Average release I Irate for period luCi/secl O.OOE+OOI O.OOE+OOJ O.OOE+OOI O.OOE+OOI I I I I I I I 3. I Percent of I % Japplicable limit* I I 4. I Gross alpha I !radioactivity ID. I TRITIUM I Ci I I Ci I O.OOE+OOI O.OOE+OOI O.OOE+OOJ O.OOE+OOI I I I I I 1<7.65E-071<5.30E-071<7.14E-07J<9.03E-07J I I I I I I 2.68E+Oll l.68E+01J l.71E+Oll 2.67E+Oll 14.5 11. !Total Release J2. !Average release I Irate for period luCi/secl 3.45E+OOI 2.13E+OOI 2.15E+OOI 3.36E+OOI I I I I I I 13. I Percent of I % I I applicable limit* I I 1.96E-02J 1.21E-021 1.23E-02J 1.92E-02J I I I I I

Applicable limits are expressed in terms of dose. See Appendices Al.2-1 through Al.2-4 Al.1-9 2017 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CS137 I Ci I Ci BATCH MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CRSl MNS4 FESS COSS C060 NI63 I *KR8S ZR9S NB9S M099 TC99m AGllOm SB124 SB12S CS134 CS137 Il31 I *XE133 I *XE133m I *XE13S I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci 1.04E+02 1.73E-OS S.24E-06 3.81E-06 6.49E-06 2.97E-0S

DENOTES SUPPLEMENTAL ISOTOPES 2.06E+02 1.14E-OS 4.66E-OS 9.0lE-06 Al.1-10 1.11E+03 4.13E-07 4.06E-OS 1.86E-OS 3.77E-04 3.67E-06 3.60E-07 8.23E-06 1.07E-04 2.20E-06 8.31E+02 2.12E-04 2.03E-OS 1.0BE-06 l.17E-06 8 .14E-06 2.62E-OS 3.97E-0S l.87E-04 3.47E-06 1.36E-06 I A. I FISSION AND I I ACTIVATION I I PRODUCTS Jl. !Total Release J2. !Average diluted I I concentration I !during period I 3. I Percent of 2017 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES BATCH MODE Units 1st 2nd 3rd 4th !Est. I Ci luCi/ml I I % I Quarter I Quarter I Quarter I Quarter !Total I I I I I Error, % I I 6.25E-05J 6.70E-051 4.49E-04J 3.09E-041 12.6 4.74E-121 3.77E-121 8.70E-121 5.96E-121 I I I I I I I I I !applicable limit I I 3.00E-041 1.41E-041 4.00E-051 1.67E-04J I I I I I I B. I TRITIUM 11. !Total Release J2. !Average diluted I I concentration I !during period I 3. I Percent of I Ci luCi/ml I I % I l.04E+02J 2.06E+021 1.11E+031 8.31E+021 10.1 7.86E-061 1.16E-051 2.16E-051 1.60E-051 I I I I I I I I I !applicable limit I I 7.86E-011 1.16E+001 2.16E+OOI 1.60E+OOI I I I I I IC. I DISSOLVED AND I !ENTRAINED GASES 11. !Total Release 12. !Average diluted I Jconcentration I Ci JuCi/ml I I 0.00E+OOJ O.OOE+OOI l.09E-04J 1.89E-041 11.8 I O.OOE+OOI O.OOE+OOI 2.llE-121 3.64E-121 I Jduring period I 13. !Percent of I I !applicable limit I % I I I I I I I I I O.OOE+OOI O.OOE+OOI 1.06E-061 1.82E-06J I I I I I ID. I GROSS ALPHA Ci 1<8.11E-051<5.35E-051<1.37E-041<1.59E-041 N/A I I RADIOACTIVITY I JTOTAL RELEASE I I I I I I I I I I IE. !VOLUME OF WASTE . I Liters! 8.74E+051 5.77E+051 l.48E+061 l.71E+06J I I RELEASED I I I I I I I F. I VOLUME OF I !DILUTION WATER I I USED DURING I I PERIOD Liters I I I I 1.32E+101 I I I 1.78E+101 I I I Al .1-11 5.16E+101 I I I 5.lBE+lOI I I I 2. oo. I I 3.48 I A. I FISSION AND I I ACTIVATION I I PRODUCTS 11. !Total Release 12. !Average diluted I I concentration I !during period 13. !Percent of 2017 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES CONTINUOUS MODE Units I Ci luCi/ml I I % 1st 2nd 3rd 4th I Est. I Quarter I Quarter I Quarter I Quarter !Total I I I I IError,%1 I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI N/A O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I B. I TRITIUM 11. I Total Release 12. !Average diluted I I concentration I !during period I 3. I Percent of I Ci luCi/ml I I % I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI N/A O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I IC. I DISSOLVED AND I !ENTRAINED GASES 11. I Total Release 12. !Average diluted I I concentration I !during period I 3. I Percent of I Ci luCi/ml I I % I O.OOE+OOI 0.00E+OOI O.OOE+OOI O.OOE+OOI N/A O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I D. I GROSS ALPHA I I RADIOACTIVITY I ITOTAL RELEASE IE. I VOLUME OF WASTE I I RELEASED I F. I VOLUME OF I !DILUTION WATER I I USED DURING I I PERIOD Ci O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI N/A I I I I I I I I I Liters! O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I Liters I I I I O.OOE+OOI I I I O.OOE+OOI I I I Al.1-12 O.OOE+OOI I I I O.OOE+OOI I I I 2.00 I I 3.48 2017 Effluent and Waste Disposal Annual Report Solid Waste and Irradiated Fuel Shipments Solid Waste Shipped Offsite for Burial or Disposal 1) Type of Waste Unit Estimated amount Estimated Total Error, % a) Spent resins, filters, sludge, m3 1.54E+01 1.00E+OO evaporator bottoms, etc. Curies 1.20E+02 3.75E+OO b) Dry compressible waste, m3 7.40E+02 1.00E+OO contaminated equipment, etc. Curies 5.80E+OO 6.48E+OO m3 c) Irradiated components, control Curies rods, etc. d) Other (contaminated soil) m3 Curies 2) Estimate of Principle Radionuclide Composition a) H-3 10 % Co-58 1% Sb-125 1.5 % Cs-137 I 1% Mn-54 1% Co-60 10.5% Cs-134 0.5% Fe-55 9.0 % Ni-63 65 % C-14 0.5% b) Ni-59 1% Co-58 1% Sb-125 1.5 % Mn-54 1.5 % Co-60 43% Zr/Nb-95 0.5% Fe-55 35.5% Ni-63 14 % Cs-137 1.5% C-14 0.5% 3) Solid Waste Disposition No. of Shipments Mode of Transportation Destination 30 Truck Oak Ridge, TN 1 Truck Erwin, TN of Containers used for Shipment: Containers used are excepted packages, Type A, Sea Land, tal boxes, drums, tankers, and hi h inte rit containers HICs . !I 5) Solidification Agent: There were no solidifications performed during this report period. Al.1-13 201 7 Effluent and Waste Disposal Annual Report Yearly Release Rates I GASES Fission and Activation Gases Total Release 3.50E+OO Curies Average Release Rate 1.llE-01 µCi/sec % of Applicable Limits

y 2.46E-02 % j3 7.4 7E-03 % Iodines Total 1-131 Release 5.99E-05 Curies Average Release Rate 1.90E-06 µCi/sec % of Applicable Limit* 3.llE-01 % Particulates Total Release O.OOE-00 Curies Average Release Rate O.OOE-00 µCi/sec % of Applicable Limit* O.OOE-00 % LIQUIDS Fission and Activation Products Total Release 8.88E-04 Curies Average Diluted Concentration 6.60E-12 µCi/ml % of Applicable Limits

Total Body 1.0lE+OO % Organ 3.05E-01 %

Applicable limits are expressed in terms of the annual 10 CFR 50, Appendix I, dose limits. Al.1-14

Site Boundary and Nearest Residence Listing The following distances were used in the calculation of the maximum individual doses: Sector Direction Boundary (Meters) Nearest Residence (Meters) A N 651 659 B NNE 617 660 C NE 789 943 D ENE 1497 1747 E E 1274 1716 F ESE 972 1643 G SE 629 1640 H SSE 594 964 J s 594 997 K SSW 629 942 Al. 1-15 Summary of Maximum Individual Doses First Quarter 2017 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 2.71E-03 Child Receptor 1 1.81£-01 1.5E+O Liquid Liver 2.80£-03 Child Receptor 1 5.59£-02 5.0E+O Noble Gas Air Dose 5.54£-04 Any 594 (S) l.1 lE-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 5.16£-04 Any 629 (SSW) 5.16£-03 1.0E+l (Beta-mrad) Age Iodines and Thyroid 1.43£-02 Child 659 (N) 1.91E-01 7.5E+O Particulates Al.2-1 Summary of Maximum Individual Doses Second Quarter 2017 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 5.34E-03 Child Receptor 1 3.56E-Ol 1.SE+O Liquid Liver 5.37E-03 Child Receptor 1 1.07E-Ol 5.0E+O Noble Gas Air Dose 1.3 lE-03 Any 617 (NNE) 2.63E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 5.07E-04 Any 617 (NNE) 5.07E-03 1.0E+l (Beta-mrad) Age Iodines and Thyroid 2.1 lE-02 Child 660 (NNE) 2.81E-Ol 7.SE+O Particulates Al.2-2 Summary of Maximum Individual Doses Third Quarter 2017 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 2.89E-02 Child Receptor 1 1.92E+OO 1.5E+O Liquid Liver 2.89E-02 Child Receptor 1 5.77E-Ol 5.0E+O Noble Gas Air Dose 2.51E-03 Any 651 (N) 5.0lE-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 1.19E-03 Any 651 (N) 1.19E-02 l.OE+l (Beta-mrad) Age Iodines and Thyroid 2.92E-02 Child 659 (N) 3.89E-01 7.5E+O Particulates Al.2-3 Summary of Maximum Individual Doses Fourth Quarter 2017 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 2.37E-02 Child Receptor 1 1.58E+OO l.5E+O Liquid Liver 2.39E-02 Child Receptor 1 4.78E-01 5.0E+O Noble Gas Air Dose 5.52E-04 Any 651 (N) l.lOE-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 7.75E-04 Any 651 (N) 7.75E-03 l.OE+l (Beta-mrad) Age Iodines and Thyroid 2.86E-02 Child 659 (N) 3.82E-Ol 7.5E+O Particulates Al.2-4 L 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection = LLD 1* (Note: Wells MW-22 through MW-27 are multi-port wells installed in the Fall of 2009, with three sample points placed at different depths. S= Shallow M= Middle D= Deep.) * (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD (Note: Wells MW-22 through MW-27 are multi-port wells installed in the Fall of 2009, with three sample points placed at different depths .. S= Shallow M= Middle D= Deep.) (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-1 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD rot*-c***-~ r w""i-**-----*****1 [ w*2*******----:*1 rw""3 ~, r w ,f------*i Lws'""""""--**--j 'W(;*****--:---"l [ w-;r--*---*11\v"s*-*, L a e --------: L -*****-*-------*--------[_1 ------_:[ .. -******--. ----*** L!!.:Y ---* . ..J . -........ L!_l'_: -------: 01/03/2017 <LLD <LLD L9)!09l~9_1_Ij [~<LI1f"""""l L *.** :-:=--*----*,**' '--******-*-****-*---* '---~---------* 01/16/2017 <LLD <LLD [o 1119t20_17 ._J '"'*"'**'"****-**"'***--*****' '*"'***-;;:c.c,.=--*---*'*------'**' 02/02/2017 <LLD i 03/Q.9l?Q17 :~--------~-----**----------*---~~~----~-~~---~~*~*--~~-----~~LD~-"""1~-----~-"--~*--~~--~~ 04/03/2017 <LLD -<LLD ~9.1aQ.!2 .. J"*--------~~---~8_LLD *:*----~~-=~---~--~~--------,[".::!::_lJL_J~------04/05/2017 : * <LLD _ _ L@ml.2-9J.1..J *---------------------------' "*****--------------' *------*---------* @b __ __j [1 :_11 e-6 [ <LLD-~~=-*J '----------*--' '--~--------------------* . 05/19/2017 <LLD [ 06/09/2017..J k---------------~ *-------------------* *-----------------* ~*----------------~ *--------------------**' '-*---=:c=-----------' ~------------------~ *------------------------~

07/13/2017 <LLD <LLD *****--*---. -----*-; L O} / 14/2 0 1_ 7 ;;:.; !.. .... :::..-:::.c:::: . .:, *** ,c: * ..J c ..... , ....... , ........... ,..a '-'***--*"'*-*-*-*-" '--------******"---*' '---**'***-*"**---*--**' 0 ** , ...... , ... -............ , , ... ,.:.::::=: ............ ...J '""*-**--*-****---' 07/19/2017 <LLD <LLD <LLD r---------------r<LLD ----1 LO 8/08/201_7 __ J , ......................... ______ , -----------*-'***--" , ________________ ;c, ......... , L, _________________ .j '****--------*-*-'------------' *------------------09 /13/20 l 7 *' <LLD ! 10/03/2017 ; [<LLD : ***--"'"'"'"'"'"~L ** -.. ,---------* * *~-*"----------s~----------->~----*-*-*---~~----**-----~~-----'""'"'"'--10/05/2017 [_t 0/07/2017 *_1 10/10/2017 <LLD ' 11/21120'li: L_ __________________ . ___ . ---------------------' '----------------' '------------** 12/04/2017 <LLD <LLD <LLD *<LLD (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-2 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD cvJ!.t~.=:::_~:.=~*J [~9~.c:.: J u~_G:.*i*** ;. -* L~i!:-.f~~:=*::c1 i-.~G~~: ~1 L~w:1~ .. :~:J CM-w~~[.~J LMw~(J [~w::t~.~~.*,: 01/11/2017 <LLD [Oh'19/20l7 ;[<LLD~.-~.J[<LLD-=][<LLD==-_] [<LLO*=-:~:'--==-*** 04/04/2017 <LLD <LLD <LLD <LLD . <LLD [cf476s7ioT7J [<LLD. ___ J[ <LLD ______ .J ..... _, ______ _ 07/11/2017 , <LLD f .011B/2017 __ : [<LLD ____ J f <LLD _____ _.] [ <LLD ........ l [ <LLD ___ J ..................................... , 07/14/2017 <LLD <LLD r 10/02/20 Ii.* r::*----*-, _ _ , ............ *-----~-' --~'----*--***--**-*~-~---= *~--~-----"(:<LLD~J ,~.~-----~LJ---**~-------~~-------*~---*---* I 0/03/2017 <LLD LJ.Q/OSf.'.201 L '------*-**"----' -----------* 11/26/2017 <LLD (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection = LLD ,-=-==---*---*' [Q__w:T=:J [ow-:i-*~ rnw::::c~_J Liviw~2s:--1 [Mw""19 .J ~-----~'-*-------~~---------o 1/03/2017 <LLD <LLD 1.14e-6 <LLD L 02/02/2017. 1 [<tLD -* .J [<LLD __ . l l_ l.53e-6* _J L<LLD ..... ] *--*********-**-***--*** '********-**---*****---*~**--*-*-*-***************-*** 03/07/2017 <LLD <LLD , <LLD . I .69e-6 <LLD l .. 04/24/2017 : [<LLD .. _] i<LLD ......... 1 [<LLD __ J IT I Oe-6 __ _] [<LLD****---... l .... ~*--****---*--**-**-' '-**********-'-------**' ~--****--**--***********-~ 05/19/2017 <LLD L.Q~!l.!f?_QJ.7 __ ; ~4e-z..:~] [~~J:,P *:::_,J '-**-******-*******-***' , ....................... ,., .......................... ,,.,. 06/09/2017 <LLD . <LLD <LLD l.07e-6 <LLD [.08/08/2017 .. l [<LLD ........ -1 L<LLD._ ... Jr <LLD .. _ l[<LLD* ..... J l.<LLD __ J, ................... --****** **-*******-*--******* 09/21/2017 <LLD <LLD <LLD 9.86e-7 <LLD Drn>Jl~Q1IJ [~Etlr.=:~J Et;~o**~::] , ___ c:;:.:::::..--;: .* ___ _, ~***--------' 11/21/2017 <LLD r . r 'r:; ] r<. LLD*_*-_-_*-..... 11[.<LLD_ .* .. _*_-__ *_**--_-_l ;)2(04/2017 \<LLD ______ 1,<Ll,D_ ____ . .. (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-3 -------, I L 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD CQate:*~~~~~~:-~:-~'. [\v:9~~:~] rw:"fo-~~~~-] [w:u*-=~=: rw.:-12_ =~=i [w-13.~--~J cw~1~(~::*:*J rw=i5_--~~:J 01/03/2017 <LLD <LLD 1 01/16/2017 __ : [ <LLD ___ J l_<LLD _ _j [<LLD __ ... j *--.. ------*-**--**""' '**-**-----------**------*--****"' ""-------------****------* '***-----****--**---**-' '"****--***---------~* 01/18/2017 <LLD rou1912011 : I.~.-... ,.--,-****""'~"'-********---**--**------*' '--*-**"********** 04/03/2017 <LLD <LLD 104/04/2017_ I [<ULD ---J [<LLD__ _I 04/05/2017 <LLD <LLD <LLD [__Qza]f2oiil LLLb _"~J ~---------* ~--------~--------~ ~---~L-----~------~*----~--~ 07/14/2017 <LLD ,<LLD <LLD <LLD <LLD f 07 /19/201 7. : '**-****-**-***-~ '*--***-*-*----' L ............. , .. --***-**' L---******---***--*******' L ....... -**.********* ,_ ________________________ __,f_<LLD ___ _J ,... ___________ _ 10/05/2017 <LLD <LLD <LLD <LLD <LLD <LLD LJ 010112011 i ~----**-----------* *------~-----------*-*--' *---------*---*--(Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Analysis of the Sample Data The Groundwater Protection Initiative (GPI) Sample Data for 2017 indicates no groundwater contamination in excess of the reporting threshold of2.00E-5 uCi/mL for tritium. Gamma spectroscopy was performed on all Radiological Environmental Monitoring Program wells quarterly. Those results are not actual GPI results so are not included in the ARERR, but are part ofCNP's 2017 Annual Radiological Environmental Operating Report. There were no positively identified gamma radionuclides from plant effluents detected in any of the GPI well samples, and two wells with trace levels of tritium just above detection limits. The LLD value used for tritium counting of the samples varied between 9.42E-7 and 9.98E-7uCi/mL, depending on which scintillation counter was used. This is well below the required maximum LLD value of2.00E-6 uCi/mL per theODCM. No tritium values were found significantly above LLD for 2017, though values found above the LLD are not abnormal, unexpected, or inconsistent with past sampling history. The samples observed above LLD historically were expected results from the release of tritiated water into the Absorption Pond, a licensed pathway and part of plant design, or the result ofrecapture deposition of tritium from licensed radioactive gaseous release points. The 2017 results were within expected parameters considering the reduction in tritium released to the Absorption Pond and typical rainfall recapture of tritium experienced. Wells located inside the Protected Area of the plant are subject to recapture deposition of tritium and may show occasional sample results above LLD values following rainfalls and snow melt. The results observed in 2017 continue to reflect nonnal expectations and behaviors as they relate to recaptured tritium for the weather conditions observed in 2017. Well MW-28 lies close to the vent stacks in the predominant wind direction, so it is expected to observe recaptured tritium from precipitation periodically. Well W-5 lies just west of the turbine building also in close proximity to the plant vent stacks, and indicated low level tritium a single time during a period of snow melt. The sample data indicates that no radioactive spills or unidentified leaks have occurred in 2017 impacting groundwater. The sample results indicate proper well placement to ensure the protection of the groundwater and early identification of any abnormal conditions involving groundwater. This is validated by the demonstrated ability to monitor percolation from the Absorption Pond and recaptured tritium in precipitation, with flow direction and behavior acting as described in the plant licensing documents. Al.3-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 5 12 9 5 0 31 NNE 0 3 3 0 0 0 6 NE 0 6 3 0 0 0 9 ENE 0 2 3 0 0 0 5 E 0 1 1 4 2 0 8 ESE 0 1 3 6 1 0 11 SE 0 1 4 15 1 0 21 SSE 0 4 13 4 3 0 24 s 0 2 10 4 4 0 20 SSW 0 2 2 2 1 0 7 SW 0 4 0 0 7 0 11 WSW 0 6 10 11 4 7 38 w 2 8 9 5 5 0 29 WNW 0 5 11 12 5 1 34 NW 0 4 5 32 5 0 46 NNW 0 1 16 16 8 0 41 Total 2 55 105 120 51 8 341 Calm Hours not Included above for : Total Period 11 Valid Hours for this Stability Class for: Total Period 341 Total Hours for Period 2160 A2.1-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 3 5 2 1 0 11 NNE 0 2 7 1 0 0 10 NE 1 1 1 0 0 0 3 ENE 0 0 2 0 0 0 2 E 0 2 1 4 0 0 7 ESE 0 0 3 2 1 0 6 SE 1 1 5 2 0 0 9 SSE 0 3 3 2 0 0 8 s 1 6 3 2 0 0 12 SSW 0 5 2 4 0 0 11 SW 1 2 1 0 0 0 4 WSW 1 4 3 0 1 2 11 w 0 1 4 3 3 0 11 WNW 1 3 1 20 15 1 41 NW 0 0 2 11 5 0 18 NNW 1 0 2 8 0 0 11 Total 7 33 45 61 26 3 175 Calm Hours not Included above for : Total Period 11 Valid Hours for this Stability Class for: Total Period 175 Total Hours for Period 2160 A2.1-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 9 22 3 6 0 40 NNE 1 4 4 2 1 0 12 NE 0 2 2 0 0 0 4 ENE 2 1 7 2 0 0 12 E 0 2 4 4 2 0 12 ESE 0 5 9 1 2 0 17 SE 1 2 5 1 0 0 9 SSE 0 1 5 5 0 0 11 s 1 1 7 8 5 0 22 SSW 0 2 3 2 1 0 8 SW 0 2 1 0 0 0 3 WSW 0 1 4 4 0 1 10 w I 0 4 9 3 0 17 WNW 0 1 7 26 4 I 39 NW 0 0 6 30 20 0 56 NNW I 0 7 20 4 0 32 Total 7 33 97 117 48 2 304 Calm Hours not Included above for : Total Period 11 Valid Hours for this Stability Class for: Total Period 304 Total Hours for Period 2160 A2.1-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 3 11 15 8 2 0 39 NNE 1 10 5 3 4 0 23 NE 2 2 7 3 0 0 14 ENE 0 8 13 0 0 0 21 E 0 11 8 12 1 1 33 ESE 0 7 13 21 4 1 46 SE 3 6 11 14 9 0 43 SSE 1 3 16 31 11 1 63 s 1 4 18 29 17 5 74 SSW 2 3 12 23 2 0 42 SW 0 1 16 29 14 4 64 WSW 0 1 11 20 7 8 47 w 4 4 9 12 6 2 37 WNW 1 4 6 43 11 0 65 NW 0 1 8 33 19 8 69 NNW 1 0 11 13 6 0 31 Total 19 76 179 294 113 30 711 Calm Hours not Included above for : Total Period 11 Valid Hours for this Stability Class for: Total Period 711 Total Hours for Period 2160 A2.1-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 0 0 1 0 0 1 NNE 1 0 3 0 0 0 4 NE 1 1 3 0 0 0 5 ENE 0 1 3 1 0 0 5 E 0 0 3 6 0 0 9 ESE 0 5 7 2 0 0 14 SE 1 5 7 4 0 0 17 SSE 0 4 10 6 0 0 20 s 0 1 11 12 0 0 24 SSW 0 1 8 7 0 0 16 SW 0 1 1 5 2 0 9 WSW 1 1 0 2 1 0 5 w 0 1 2 1 1 0 5 WNW 2 0 1 2 0 0 5 NW 1 2 5 0 0 0 8 NNW 1 2 1 0 0 0 4 Total 8 25 65 49 4 0 151 Calm Hours not Included above for : Total Period 11 Valid Hours for this Stability Class for: Total Period 151 Total Hours for Period 2160 A2.1-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 0 0 0 0 0 0 NNE 0 2 0 0 0 0 2 NE 0 1 1 0 0 0 2 ENE 1 0 2 1 0 0 4 E 0 2 0 3 0 0 5 ESE I 0 1 1 0 0 3 SE 0 2 4 3 0 0 9 SSE 0 0 2 I 0 0 3 s 0 I 4 2 0 0 7 SSW I I 2 1 0 0 5 SW 0 I 0 0 0 0 1 WSW 0 0 I 0 0 0 I w 0 0 0 0 0 0 0 WNW I 0 0 0 0 0 1 NW 0 4 0 0 0 0 4 NNW 0 0 1 0 0 0 1 Total 4 14 18 12 0 0 48 Calm Hours not Included above for : Total Period 11 Valid Hours for this Stability Class for: Total Period 48 Total Hours for Period 2160 A2.1-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 1 0 0 0 0 1 NNE 0 0 0 0 0 0 0 NE 2 1 0 0 0 0 3 ENE 0 0 1 1 0 0 2 E 0 1 2 0 0 0 3 ESE 0 0 1 1 0 0 2 SE 0 0 5 1 0 0 6 SSE 0 0 0 0 0 0 0 s 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 3 0 0 0 0 3 WSW 1 2 1 0 0 0 4 w 0 0 1 0 0 0 1 WNW 0 4 0 0 0 0 4 NW 1 3 2 0 0 0 6 NNW 0 0 0 0 0 0 0 Total 4 15 13 3 0 0 35 Calm Hours not Included above for : Total Period 11 Valid Hours for this Stability Class for: Total Period 35 Total Hours for Period 2160 A2.1-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 3 29 54 23 14 0 123 NNE 3 21 22 6 5 0 57 NE 6 14 17 3 0 0 40 ENE 3 12 31 5 0 0 51 E 0 19 19 33 5 1 77 ESE 1 18 37 34 8 1 99 SE 6 17 41 40 10 0 114 SSE 1 15 49 49

14 1 129 s 3 15 53 57 26 5 159 SSW 3 14 29 39 4 0 89 SW 1 14 19 34 23 4 95 WSW 3 15 30 37 13 18 116 w 7 14 29 30 18 2 100 WNW 5 17 26 103 35 3 189 NW 2 14 28 106 49 8 207 NNW 4 3 38 57 18 0 120 Total 51 251 522 656 242 43 1765 Calm Hours not Included above for : Total Period 11 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 384 Valid Hours for this Stability Class for: Total Period 1765 Total Hours for Period 2160 A2.1-8 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 4/1/2017 -6/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 4 23 23 2 0 52 NNE 0 3 1 0 1 0 5 NE 1 5 0 0 0 0 6 ENE 0 1 0 0 0 0 1 E 0 2 0 0 0 0 2 ESE 0 0 5 7 0 0 12 SE 0 2 3 5 0 0 10 SSE 0 0 2 7 5 0 14 s 0 1 3 9 4 2 19 SSW 0 0 0 3 3 0 6 SW 0 0 4 7 5 0 16 WSW 0 3 20 13 1 0 37 w 0 14 28 9 4 0 55 WNW 1 20 25 4 0 0 50 NW 1 10 15 4 1 1 32 NNW 0 9 25 12 7 4 57 Total 3 74 154 103 33 7 374 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 374 Total Hours for Period 2184 A2.2-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 4/1/2017 -6/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13-19 19-25 > 25 Total N 0 1 6 1 0 2 10 NNE 0 0 0 0 0 0 0 NE 0 2 0 0 0 0 2 ENE 0 0 0 1 0 0 1 E 1 1 0 0 0 0 2 ESE 0 0 1 1 0 0 2 SE 0 1 1 0 0 0 2 SSE 0 1 2 0 0 0 3 s 1 1 0 2 1 0 5 SSW 0 0 1 0 0 0 1 SW 0 1 0 4 0 0 5 WSW 0 6 3 5 0 0 14 w 0 5 2 1 0 0 8 WNW 1 7 3 5 0 0 16 NW 0 4 2 0 1 0 7 NNW 0 -5 2 1 0 2 10 Total 3 35 23 21 2 4 88 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 88 Total Hours for Period 2184 A2.2-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 4/1/2017 -6/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 1 2 1 1 3 8 NNE 0 0 1 0 0 0 1 NE 0 0 1 0 0 0 1 ENE 0 0 1 1 0 0 2 E 0 0 1 1 0 0 2 ESE 1 0 4 5 0 0 10 SE 0 1 1 0 0 0 2 SSE 0 3 1 1 0 0 5 s 0 1 2 0 1 0 4 SSW 0 1 1 2 1 0 5 SW 0 1 3 7 0 0 11 WSW 0 1 4 4 0 0 9 w 0 5 3 2 0 0 10 WNW 1 2 3 1 1 0 8 NW 1 0 2 1 0 0 4 NNW 1 1 2 0 1 2 7 Total 4 17 32 26 5 5 89 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 89 Total Hours for Period 2184 A2.2-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 4/1/2017 -6/30/2017 *Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 1 6 11 6 4 6 34 NNE 2 3 2 2 0 0 9 NE 1 5 6 5 2 0 19 ENE 1 4 3 3 0 0 11 E 0 1 11 7 0 0 19 ESE 0 0 6 8 0 0 14 SE 0 2 4 6 0 0 12 SSE 1 2 5 2 0 0 10 s 0 2 6 15 14 0 37 SSW 0 6 17 26 9 0 58 SW 3 3 15 17 6 0 44 WSW 3 3 9 9 1 0 25 w 4 5 4 3 3 0 19 WNW 3 7 7 15 5 0 37 NW 1 5 4 5 1 0 16 NNW 1 3 2 5 1 13 Total 21 55 113 131 50 7 377 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 377 Total Hours for Period 2184 A2.2-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 4/1/2017 -6/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13-19 19-25 > 25 Total N 4 4 3 1 0 0 12 NNE 0 4 10 0 0 0 14 NE 0 8 19 1 0 0 28 ENE 1 4 8 3 0 0 16 E 0 2 9 3 0 0 14 ESE 0 2 9 5 0 0 16 SE 1 2 11 9 0 0 23 SSE 1 2 5 12 1 0 21 s 1 2 15 18 1 0 37 SSW 0 5 14 17 0 0 36 SW 1 1 9 13 0 0 24 WSW 0 0 9 4 0 0 13 w 0 4 7 2 0 0 13 WNW 0 3 7 15 0 0 25 NW 0 7 5 6 0 0 18 NNW 1 1 5 2 0 0 9 Total 10 51 145 Ill 2 0 319 Calm Hours not Included above for : Total Period I Valid Hours for this Stability Class for: Total Period 319 Total Hours for Period 2184 A2.2-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 4/1/2017 -6/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4.-8 8 -13 13-19 19-25 > 25 Total N 0 0 1 0 0 0 1 NNE 0 1 3 0 0 0 4 NE 1 2 4 1 0 0 8 ENE 0 3 4 1 0 0 8 E 0 0 0 0 0 0 0 ESE 1 1 1 2 0 0 5 SE 1 3 8 0 0 0 12 SSE 0 2 8 3 0 0 13 s 2 1 7 5 0 0 15 SSW 0 3 4 2 0 0 9 SW 0 1 6 2 0 0 9 WSW 0 2 6 0 0 0 8 w 0 1 1 1 0 0 3 WNW 0 2 1 0 0 0 3 NW 0 3 1 0 0 0 4 NNW 0 0 2 0 0 0 2 Total 5 25 57 17 0 0 104 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 104 Total Hours for Period 2184 A2.2-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 4/1/2017 -6/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (ipph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 2 2 4 0 0 0 8 NNE 3 3 5 0 0 0 11 NE 0 3 4 0 0 0 7 ENE 2 3 10 0 0 0 15 E 3 4 7 1 0 0 15 ESE 0 7 9 0 0 0 16 SE 2 6 6 0 0 0 14 SSE 0 7 15 3 0 0 25 s 0 5 8 9 0 0 22 SSW 2 2 5 2 0 0 11 SW 0 3 14 1 0 0 18 WSW 0 2 2 2 0 0 6 w 0 7 0 0 0 0 7 WNW 0 2 0 0 0 0 2 NW 1 0 0 0 0 0 1 NNW 0 1 0 0 0 0 1 Total 15 57 89 18 0 0 179 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 179 Total Hours for Period 2184 A2.2-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 4/1/2017 -6/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 7 18 50 32 7 11 125 NNE 5 14 22 2 1 0 44 NE 3 25 34 7 2 0 71 ENE 4 15 26 9 0 0 54 E 4 10 28 12 0 0 54 ESE 2 10 35 28 0 0 75 SE 4 17 34 20 0 0 75 SSE 2 17 38 28 6 0 91 s 4 13 41 58 21 2 139 SSW 2 17 42 52 13 0 126 SW 4 10 51 51 11 0 127 WSW 3 17 53 37 2 0 112 w 4 41 45 18 7 0 115 WNW 6 43 46 40 6 0 141 NW 4 29 29 16 3 1 82 NNW 3 18 39 17 13 9 99 Total 61 314 613 427 92 23 1530 J Calm Hours not Included above for : Total Period 1 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 653 Valid Hours for this Stability Class for: Total Period 1530 Total Hours for Period 2184 A2.2-8 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 8 31 28 0 0 67 NNE 0 0 2 0 0 0 2 NE 0 4 8 0 0 0 12 ENE 0 1 8 0 0 0 9 E 0 8 12 2 0 0 22 ESE 0 4 6 0 0 0 10 SE 0 11 9 0 0 0 20 SSE 0 5 13 0 0 0 18 s 0 0 7 0 0 0 7 SSW 0 2 1 1 0 0 4 SW 0 0 2 1 0 0 3 WSW 1 4 17 1 0 0 23 w 0 12 14 0 0 0 26 WNW 0 33 17 5 0 0 55 NW 0 34 27 10 0 0 71 NNW 0 15 38 24 0 0 77 Total 1 141 212 72 0 0 426 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 426 Total Hours for Period 2208 A2.3-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 6 4 2 0 0 12 NNE 0 0 0 0 0 0 0 NE 2 1 0 0 0 0 3 ENE 0 0 0 0 0 0 0 E 1 2 0 0 1 0 4 ESE 0 4 3 0 0 0 7 SE 1 4 1 0 0 0 6 SSE 0 14 4 0 0 0 18 s 0 2 6 1 0 0 9 SSW 0 3 1 0 0 0 4 SW 1 2 3 0 0 0 6 WSW 0 7 10 3 0 0 20 w 0 4 4 0 0 0 8 WNW 1 9 2 0 0 0 12 NW 0 6 4 3 0 0 13 NNW 0 3 5 1 0 0 9 Total 6 67 47 10 1 0 131 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 131 Total Hours for Period 2208 A2.3-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 2 4 2 0 0 8 NNE 1 0 0 1 0 0 2 NE 1 2 0 0 0 0 3 ENE 0 1 1 0 0 0 2 E 1 3 0 0 0 0 4 ESE 1 8 3 0 0 0 12 SE 0 3 5 0 0 0 8 SSE 1 4 4 0 0 0 9 s 0 1 6 0 0 0 7 SSW 0 3 2 0 0 0 5 SW 0 6 1 0 0 0 7 WSW 1 5 4 1 0 0 11 w 0 1 2 1 0 0 4 WNW 0 2 2 1 0 0 5 NW 0 5 3 1 0 0 9 NNW 0 2 3 1 0 0 6 Total 6 48 40 8 0 0 102 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 102 Total Hours for Period 2208 A2.3-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 2 16 23 12 0 0 53 NNE 2 5 4 1 0 0 12 NE 3 3 1 2 0 0 9 ENE 1 2 8 1 0 0 12 E 3 4 5 1 0 0 13 ESE 1 8 4 1 0 0 14 SE 5 9 5 0 0 0 19 SSE 1 10 7 3 0 0 21 s 5 14 16 5 0 0 40 SSW 1 9 6 1 0 0 17 SW 1 9 7 6 2 1 26 WSW 2 10 6 12 5 0 35 w 1 5 4 8 3 1 22 WNW 5 6 5 6 2 0 24 NW 3 4 2 7 0 0 16 NNW 3 8 9 9 0 0 29 Total 39 122 112 75 12 2 362 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 362 Total Hours for Period 2208 A2.3-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 3 18 30 6 0 0 57 NNE 0 11 17 2 0 0 30 NE 1 5 13 0 0 0 19 ENE 0 7 7 2 0 0 16 E 1 9 8 5 0 0 23 ESE 1 7 7 0 0 0 15 SE 1 9 15 1 0 0 26 SSE 0 9 30 5 0 0 44 s 0 7 42 12 0 0 61 SSW 2 1 16 6 0 0 25 SW 1 8 7 9 0 0 25 WSW 0 3 6 6 0 0 15 w 0 2 10 7 0 0 19 WNW 0 2 5 6 2 0 15 NW 2 0 13 13 5 0 33 NNW 3 5 27 5 0 0 40 Total 15 103 253 85 7 0 463 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 463 Total Hours for Period 2208 A2.3-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 3 5 0 0 0 8 NNE 1 7 IO 0 0 0 18 NE 2 9 11 0 0 0 22 ENE 1 2 15 0 0 0 18 E 2 5 18 0 0 0 25 ESE 3 4 20 1 0 0 28 SE 2 10 27 1 0 0 40 SSE 2 IO 12 15 0 0 39 s 0 6 12 2 0 0 20 SSW 1 3 IO 2 0 0 16 SW 1 2 13 3 0 0 19 WSW 0 1 2 0 0 0 3 w 0 2 1 0 0 0 3 WNW 0 1 1 0 0 0 2 NW 1 1 2 0 0 0 4 NNW 3 1 7 1 0 0 12 Total 19 67 166 25 0 0 277 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 277 Total Hours for Period 2208 A2.3-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 4 6 4 0 0 0 14 NNE 0 8 7 0 0 0 15 NE 5 8 17 0 0 0 30 ENE 5 15 21 1 0 0 42 E 6 4 30 1 0 0 41 ESE 0 10 34 1 0 0 45 SE 6 10 36 4 0 0 56 SSE 7 13 35 17 0 0 72 s 3 12 16 10 0 0 41 SSW 1 1 10. 7 0 0 19 SW 1 4 11 2 0 0 18 WSW 1 5 2 0 0 0 8 w 1 2 2 0 0 0 5 WNW 2 2 2 0 0 0 6 NW 1 2 0 0 0 0 3 NNW 2 2 1 0 0 0 5 Total 45 104 228 43 0 0 420 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 420 Total Hours for Period 2208 A2.3-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record= 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 9 59 101 50 0 0 219 NNE 4 31 40 4 0 0 79 NE 14 32 50 2 0 0 98 ENE 7 28 60 4 0 0 99 E 14 35 73 9 1 0 132 ESE 6 45 77 3 0 0 131 SE 15 56 98 6 0 0 175 SSE 11 65 105 40 0 0 221 s 8 42 105 30 0 0 185 SSW 5 22 46 17 0 0 90 SW 5 31 44 21 2 1 104 WSW 5 35 47 23 5 0 115 w 2 28 37 16 3 1 87 WNW 8 55 34 18 4 0 119 NW 7 52 51 34 5 0 149 NNW 11 36 90 41 0 0 178 Total 131 652 1058 318 20 2 2181 Calm Hours not Included above for : Total Period I Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 26 Valid Hours for this Stability Class for: Total Period 2181 Total Hours for Period 2208 A2.3-8 L_ ___ _

Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/1/2017 -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 5 9 3 1 0 18 NNE 1 4 9 5 0 0 19 NE 2 4 4 0 0 0 10 ENE 0 3 2 0 0 0 5 E 0 8 4 1 0 0 13 ESE 0 2 1 0 0 0 3 SE 0 0 3 0 0 0 3 SSE 0 0 5 4 0 0 9 s 0 0 3 2 0 0 5 SSW 0 0 0 0 0 0 0 SW 0 0 0 3 2 0 5 WSW 0 1 3 6 1 0 11 w 0 1 4 3 4 0 12 WNW 0 2 2 2 0 0 6 NW 0 5 2 2 1 0 10 NNW 0 5 1 2 1 0 9 Total 3 40 52 33 10 0 138 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 138 Total Hours for Period 2208 A2.4-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/1/2017 -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 0 5 0 0 0 5 NNE 0 0 0 0 0 0 0 NE 0 1 1 0 0 0 2 ENE 0 1 0 0 0 0 1 E 0 2 0 0 0 0 2 ESE 0 2 2 2 0 0 6 SE 0 2 3 3 0 0 8 SSE 0 3 3 3 0 0 9 s 0 0 6 4 3 0 13 SSW 0 0 2 0 0 0 2 SW 0 0 1 3 0 0 4 WSW 0 0 2 6 1 0 9 w 0 1 4 3 1 0 9 WNW 0 1 1 1 1 1 5 NW 0 1 0 1 4 0 6 NNW 1 0 1 1 0 0 3 Total 1 14 31 27 10 1 84 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 84 Total Hours for Period 2208 A2.4-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/1/2017 -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 1 3 0 0 0 4 NNE 0 0 1 0 0 0 1 NE 0 1 0 0 0 0 1 ENE 0 0 1 0 0 0 1 E 1 0 0 1 0 0 2 ESE 0 1 2 0 0 0 3 SE 0 1 7 1 0 0 9 SSE 0 3 8 3 0 0 14 s 0 1 5 5 2 0 13 SSW 0 0 1 5 0 0 6 SW 0 1 1 3 1 0 6 WSW 0 1 2 1 0 2 6 w 1 1 4 2 1 0 9 WNW 0 1 1 3 1 0 6 NW 0 0 2 2 2 0 6 NNW 1 1 1 1 0 0 4 Total 3 13 39 27 7 2 91 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 91 Total Hours for Period 2208 A2.4-3 Site: AEP Cook Joint Frequency Distribution . Hours at Each Wind Speed and Direction Total Period Period of Record = 10/1/2017 -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 9 21 9 10 1 50 NNE 1 4 5 4 1 0 15 NE 0 4 3 1 0 0 8 ENE 1 14 19 4 1 0 39 E 3 10 25 8 6 0 52 ESE 5 6 13 12 0 0 36 SE 0 15 25 5 0 0 45 SSE 1 18 42 24 11 1 97 s 0 17 40 28 10 5 100 SSW 1 8 41 27 17 1 95 SW 1 5 20 47 13 0 86 WSW 1 9 11 28 12 14 75 w 2 4 18 42 46 17 129 WNW 2 5 21 63 41 1 133 NW 1 1 16 44 46 6 114 NNW 2 8 13 32 12 13 80 Total 21 137 333 378 226 59 1154 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 1154 Total Hours for Period 2208 A2.4-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/1/2017 . -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 2 I 7 0 0 0 10 NNE 0 2 4 0 0 0 6 NE 0 5 11 2 0 0 18 ENE 1 4 13 2 0 0 20 E 1 1 12 3 0 0 17 ESE 0 3 10 2 0 0 15 SE 1 8 21 11 0 0 41 SSE 0 4 24 35 2 0 65 s 1 9 35 27 6 0 78 SSW 1 7 34 22 8 2 74 SW 1 3 5 17 2 0 28 WSW 1 1 6 3 0 1 12 w 0 3 7 6 0 0 16 WNW 0 2 7 16 10 0 35 NW 0 2 7 15 4 1 29 NNW 0 1 9 7 5 0 22 Total 9 56 212 168 37 4 486 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 486 Total Hours for Period 2208 A2.4-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/1/2017 -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 1 0 0 0 0 1 NNE 0 2 1 0 0 0 3 NE 0 2 1 0 0 0 3 ENE 1 0 6 0 0 0 7 E 0 0 5 4 0 0 9 ESE 0 1 4 1 0 0 6 SE 1 0 9 6 0 0 16 SSE 0 1 10 7 0 0 18 s 1 5 13 9 0 0 28 SSW 0 2 6 14 0 0 22 SW 0 2 6 0 0 0 8 WSW 0 4 3 0 0 0 7 w 0 0 2 0 0 0 2 WNW 0 0 0 0 0 0 0 NW 1 0 0 0 0 0 1 NNW 0 1 0 0 0 0 1 Total 4 21 66 41 0 0 132 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 132 Total Hours for Period 2208 A2.4-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 10/1/2017 -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 1 0 0 0 0 1 NNE 0 1 0 0 0 0 1 NE 0 0 1 0 0 0 1 ENE 0 2 2 0 0 0 4 E 0 4 0 0 0 0 4 ESE 0 2 4 0 0 0 6 SE 1 5 8 2 0 0 16 SSE 1 6 6 8 0 0 21 s 1 2 13 6 0 0 22 SSW 1 4 10 4 0 0 19 SW 2 5 2 0 0 0 9 WSW 1 4 1 0 0 0 6 w 0 2 0 0 0 0 2 WNW 0 2 1 0 0 0 3 NW 0 3 0 0 0 0 3 NNW 3 1 0 0 0 0 4 Total 10 44 48 20 0 0 122 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 122 Total Hours for Period 2208 A2.4-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 10/1/2017 -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 2 18 45 12 11 1 89 NNE 2 13 20 9 1 0 45 NE 2 17 21 3 0 0 43 ENE 3 24 43 6 1 0 77 E 5 25 46 17 6 0 99 ESE 5 17 36 17 0 0 75 SE 3 31 76 28 0 0 138 SSE 2 35 98 84 13 1 233 s 3 34 115 81 21 5 259 SSW 3 21 94 72 25 3 218 SW 4 16 35 73 18 0 146 WSW 3 20 28 44 14 17 126 w 3 12 39 56 52 17 179 WNW 2 13 33 85 53 2 188 NW 2 12 27 64 57 7 169 NNW 7 17 25 43 18 13 123 Total 51 325 781 694 290 66 2207 Calm Hours not Included above for : Total Period 1 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 0 Valid Hours for this Stability Class for: Total Period 2207 Total Hours for Period 2208 A2.4-8 OFF-SITE DOSE CALCULATION MANUAL .CHANGES The Off-Site Dose Calculation Manual, PMP-601O-OSD-001, was not revised during this 201 7 reporting period. A3.0-1 ENCLOSURE 2 to AEP-NRC-2018-35 DONALD C. COOK NUCLEAR PLANT UNITS 1 AND 2 2016 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT, Revision 1 TABLE OF CONTENTS Page Table of Contents 1 I. IL III. IV. V. VI. VII. VIII. IX. Introduction 1 Radioactive Releases and Radiological Impact on Man 1 Liquid Releases 2 Gaseous Releases 2 Solid Waste Disposition 3 Meteorological 3 Offsite Dose Calculation Manual (ODCM) Changes 3 Total Dose 3 Radiation Monitors Inoperable Greater Than 30 Days 4 Noteworthy Conditions Identified in 2016 4 Conclusion 6 Errata 6 LIST OF APPENDICES Title Appendix Al.1 2016 Effluent and Waste Disposal Annual Report -Supplemental Information Al.2 Summary of Maximum Individual Doses: First Quarter, Second Quarter, Third Quarter, and Fourth Quarter 2016 Al.3 2016 Groundwater Protection Initiative (GPI) Sample Data A2.1 Hours at Each Wind Speed and Direction: First Quarter, 2016 A2.2 Hours at Each Wind Speed and Direction: Second Quarter, 2016 A2.3 Hours at Each Wind Speed and Direction: Third Quarter, 2016 A2.4 Hours at Each Wind Speed and Direction: Fourth Quarter, 2016 A3.0 Offsite Dose Calculation Manual (ODCM) Changes 1 l I. INTRODUCTION This report discusses the radioactive discharges from Unit 1 and Unit 2 of the Donald C. Cook Nuclear Plant (CNP) during 2016. This is in accordance with the requirements of CNP Technical Specification (TS) 5.6.3. The table below summarizes the pertinent statistics concerning the Plant's operation during the period from January 1, 2016, to December 31, 2016. The data in this table and the descriptive information on plant operation are based upon the respective unit's Monthly Operating Reports, Performance Indicators, and Control Room Logs for 2016. Parameter Unit 1 Unit2 Gross Electrical Energy Generation 8,586,842 7,272,912 (Megawatt Hour (MWH)) Unit Service Factor 90.1 74.1 (Percent(%)) Unit Capacity Factor 91.9 74.5 (Maximum Dependable Capacity (MDC)) Net(%) Unit 1 entered the reporting period in Mode 1 at Nominal Full Power (NFP). Small power adjustments were made to facilitate main turbine valve testing throughout the year. The unit performed a normal downpower and was manually tripped on March 23, 2016, entering refueling outage U1C27. The unit attained criticality on April 27, 2016, and attained NFP on May 2, 2016. The unit exited the reporting period at NFP. Unit 2 entered the reporting period in Mode 1 at NFP. Small power adjustments were made to facilitate main turbine valve testing throughout the year. The unit was manually tripped on July 6, 2016, entering a forced outage due to a steam leak. The unit attained criticality on July 12, 2016, and attained NFP on July 14, 2016. On July 21, 2016, the unit performed a controlled downpower to 48% power at the request of grid operators due to grid conditions, returning to NFP on August 2, 2016. The unit performed a normal downpower and was manually tripped on October 5, 2016, entering refueling outage U2C23. The unit exited the reporting period shutdown. IL RADIOACTIVE RELEASES AND RADIOLOGICAL IMPACT ON MAN Since a number of release points are common to both units, the release data from both units are combined to form this two-unit, Annual Radioactive Effluent Release Report. Appendix Al.I through A2.4 of this report present the information in accordance with Section 5.6.3 of Appendix A to the Facility Operating Licenses, as specified in the Technical Specifications, Regulatory Guide 1.21, and 10 CFR Part 50, Appendix I. The "MIDAS System" is a computer code that calculates doses due to radionuclides that were released from the CNP. 1 All liquid and gaseous releases were well within Offsite Dose Calculation Manual (ODCM) limits and federal limits. There was one abnormal liquid release and no abnormal gaseous releases in 2016. The abnormal liquid release occurred on October 31, 2016, with approximately 1,500 gallons of water leaking past boundary valves on the normal licensed steam generator drainage pathway over a 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months period. The water was Secondary side water contained inside a steam generator, which acts as a heat transfer medium from the Reactor Coolant filled Primary side piping. This steam generator water was subsequently discharged to Lake Michigan via the Circulating Water system. This water contained tritium at 15,000 picocuries per liter, which is below the 20,000 picocurie per liter drinking water limit. Though the nuclide level was low, the leakage was unplanned and met the criteria for being an abnormal release of liquid effluent. The total curies of tritium released from the event were l.71E-04 curies, assuming a conservative 3000 gallons ofreleased water to bound the event. This curie content was added to the liquid release totals and the associated public dose accounted for. Action Request AR# 2016-12597 documented this event and subsequent repairs. The Independent Spent Fuel Storage Installation (ISFSI) impacts are included with Unit 1 and Unit 2 statistics. The ISFSI cask system does not create any radioactive materials or have any radioactive waste treatment systems. Therefore, specific operating procedures for the control of radioactive effluents are not required. Specification 3.1.1, Multi-Purpose Canister (MPC), provides assurance that there are not radioactive effluents from the ISFSI. Liquid Releases During 2016 there were 89 liquid batch releases performed. The number of liquid batch releases for the four quarters in 2016 was 14, 20, 22, and 33, respectively. Estimated doses (in mrem) to maximally exposed individuals via the liquid release pathways are given in Appendix A 1.2 of this report. Gaseous Releases During the first quarter of 2016 there were seven batch releases from Gas Decay Tanks (GDT), one containment purge, one system tank venting, and 134 Containment Pressure Reliefs (CPR). During the second quarter there were three batch releases from GDTs, one system tank venting, and 130 CPR. During the third quarter there were four batch releases from GDTs and 150 CPR. During the fourth quarter there were two batch releases from GDTs, one containment purge, one system tank venting, and 86 CPR. The CPR continue to be listed as batch releases as described in Nuclear Regulatory Commission Inspections 50-315/89017 (DRSS); 50-316/89016 (DRSS) for CNP, dated June 13, 1989. Doses continue to be calculated utilizing continuous criteria as allowed by NUREG-0133. There were a total of 16 GDT releases, two containment purges, three system tank vents, and 500 CPR gaseous batch releases made during 2016. In calculating the dose consequences for continuous and batch gaseous releases during 2016, the meteorological data measured at the time of the release were used. 2 The estimated doses (in mrem) to maximally exposed individuals via the gaseous release pathways are given in Appendix Al.2 ofthis report. For individuals that are within the site boundary, the occupancy time is sufficiently low to compensate for any increase in the atmospheric diffusion factor above that for the site boundary. Solid Waste Disposition There were 33 shipments of radioactive waste made during 2016. These included shipments made from the site to various radioactive waste processors for ultimate disposal. III. METEOROLOGICAL Appendices A2.l, A2.2, A2.3, and A2.4 of this report contain the cumulative joint frequency distribution tables of wind speed and wind direction, corresponding to the various atmospheric stability classes for the first, second, third, and fourth quarters of 2016. Hourly meteorological data is available for review and/or inspection upon request. IV. OFFSITE DOSE CALCULATION MANUAL (ODCM) CHANGES The ODCM, PMP-601O-OSD-001, was not revised during the report period. V. TOTAL DOSE Section 3.2.5 of the ODCM requires that the dose or dose commitment to a real individual from all uranium fuel cycle sources in Berrien County be limited to no more than 25 mrem to the total body or any organ (except the thyroid, which is limited to no more than 75 mrem) over a period of 12 consecutive months to show conformance with the requirements of 40 CPR Part 190. The maximum cumulative dose to an individual from liquid and gaseous effluents during 2016 was well within the ODCM limits. Measurements using thermoluminescent dosimeters (TLD) at 12 onsite stations indicate that the dose due to direct radiation is consistent with preoperational and current control (background) levels. This is fully evaluated in CNP's 2016 Annual Radiological Environmental Operating Report. Additional TLD dosimetry installed by Radiation Protection department programs monitor dose received by individuals on site as visitors. The annual dose to the maximum individual will be estimated by first, summing the quarterly total body air dose, the quarterly skin air dose, the quarterly critical organ dose from iodines and particulates (I&P), the quarterly total body dose from liquid effluents, the . quarterly critical organ dose from liquid effluents, and the Radiological Environmental Monitoring Program onsite direct radiation TLD data. These quarterly values are summed with the annual Carbon-14 dose and compared to the annual total body limit for conservative reasons. The table that follows here represents the above written description: 3 Dose (mrem) 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr I & p 1.15E-02 4.46E-01 4.58E-02 9.34E-02 Total Body Air 1.00E-03 2.30E-04 7.60E-04 5.50E-04 Skin 2.20E-03 4.60E-04 2.60E-03 1.1 OE-03 Liquid TB 1.27E-02 1.32E-02 3.47E-02 1.05E-02 Liquid Organ 1.27E-02 1.32E-02 3.47E-02 1.12E-02 C14 (Annual) 1.97E+OO Direct Radiation 0 0 0 0 Total 4.01 E-02 4.73E-01 1.18E-01 2.09E+OO Grand Total Dose (Total Body or any other Orqan) mrem 2.72E+OO Annual Dose Limit (mrem) 25 Percent of limit 1.09E+01 The following data reflects a comparison with 2009 annual dose data (the last year without calculating C-14 dose),2016 annual dose data, and 2016 annual dose data with C-14 added. This indicates that 2016 annual dose was 'typical' for a dual unit outage year with an extended outage duration in regards to radioactive effluents. The table is presented as follows: Annual Dose (mrem) % of limit 2009 2.60E-01 1.04 2016 7.48E-01 2.99 2016 with C-14 2.72 10.9 VI. RADIATION MONITORS INOPERABLE GREATER THAN 30 DAYS There were no release pathways unmonitored for greater than 30 days. VIL NOTEWORTHY CONDITIONS IDENTIFIED IN 2016 The Inadvertent draining of a steam generator in 2016 was discussed in Section II above as an abnormal release. While noteworthy, it had minimal impact on effluent releases or public dose exposure due to the very low tritium curie content of the water. In addition, it is considered noteworthy that in 2016 two small fuel rodlet defects were identified to have the potential to impact effluents. These defects increased the release of fission product gasses and iodine isotopes into the reactor coolant, which in tum increased activity levels in the effluent streams. The increases contributed to a small impact to the site overall public dose exposure by approximately 1.2% of the limit over the course of the year (2015 was 2.42mRem/ 9.68% oflimit vice 2.72mRem/ 10.9% oflimit in 2016). The public dose due to operations at CNP remain a small fraction of the legal limits and efforts to keep public dose As Low As Reasonably Achievable (ALARA) were largely successful. 4 Carbon-14 Supplemental Information for the 2016 Annual Radioactive Effluent Release Report. C-14 has a 5730 year half-life and is a naturally occurring radionuclide produced by cosmic ray interactions in the atmosphere. C-14 is a relatively low energy beta emitter. Nuclear weapons testing in the 1950s and 1960s significantly increased the amount of C-14 in the atmosphere. C-14 is also produced in commercial nuclear reactors, but the amounts produced are much less than those produced naturally, from weapons testing, or coal burning power plants. The inventory of C-14 in Earth's biosphere is about 300 million Curies, of which most is in the oceans. Since the U.S. Nuclear Regulat01y Commission (NRC) published Regulatory Guide (RG) 1.21, Revision 1, in 1974, the analytical methods for determining C-14 have improved. Coincidentally, the radioactive effluents from commercial nuclear power plants over the same period have decreased to the point that C-14 is likely to be a principal radionuclide in gaseous effluents. Based on these reasons and a desire to adjust policy to align with international standards, the nuclear industry was required to report, starting in 2010, the quantity and dose impact of C-14 here in the United States. The dose will be reported both with and without C-14 so a comparison to 2009 can be made, keeping in mind the differing standards. The quantity of C-14 released to the environment can be estimated by use of a C-14 source term scaling factor based on power generation (Ref. RG 1.21, Revision 2). A recent study recommends a source term scaling factor of approximately 9.0 to 9.8 Curies/GWe-yr for a Westinghouse Pressurized Water Reactor (Ref. EPRI 1021106, "Estimation of Carbon-14 in Nuclear Plant Gaseous Effluents", dated December 23, 2010). A scaling factor of 9.4 Curies/GWe-yr was assumed for this report. Using this source term scaling factor and actual electrical generation (in MWH) produced during 2016 results in a site total of 17 .0 Curies produced. C-14 releases from Pressurized Water Reactors (PWR) occur primarily as a mix of organic carbon (methane) and inorganic carbon ( carbon dioxide). As a general rule, C-14 in the primary coolant is essentially all organic with a large fraction as gas. Any time the primary coolant is exposed to an oxidizing environment ( during shutdown or refueling), a slow transformation from an organic to an inorganic species occurs. Various studies documenting measured C-14 releases from PWRs suggest an average 80% organic fraction with the remainder being carbon dioxide. This equates to 2.38 Curies released as carbon dioxide which is available for the food pathway through photosynthesis to vegetation. Dose is calculated utilizing the methodology prescribed in RG 1.109, Appendix C, with the vegetation dose being the most predominant. A 'p' factor of 0.33 is determined utilizing the time of batch gaseous releases performed during 2016, the time available for photosynthesis in plants, and the assumption that 70% of the C-14 released is from gaseous batch releases. A further reduction to the vegetation and leafy vegetable dose is warranted due to the limited growing season in Michigan, which was conservatively limited to nine months. 5 The final results indicated a calculated organ dose from C-14 to a child at the site boundary of 1.64 mrem to the bone and a whole body dose of 0.326 mrem, for a combined total C-14 dose of 1.97 mrem. This is less than the dose limit of 15 mrem/unit to any organ prescribed in 10 CFR 50, Appendix I, and the 40 CFR Part 190 limit of 25 mrem for total body and for any organ ( ~75 mrem for thyroid). vm. CONCLUSION Based on the information presented in this report, it is concluded that CNP Units 1 and 2 performed their intended design function with no demonstrable adverse effect on the health and safety of the general public. IX. ERRATA There are no errata attached for 2016. Note: This entire document is Revision 1 submitted as "Errata" attached to the 2017 Annual Radioactive Effluent Release Report per Corrective Action 2017-4835. This new revision completely replaces the previously submitted report. This errata was necessitated due to problems identified with equipment utilized for counting tritium samples dating back to 2013. The alterations changed the overall public dose calculated from 2.71 millirems (10.8% of the 40 CFR190 allowable dose limits) to 2.72 millirems (10.9% of the 40CFR190 allowable dose limits). There were no adverse impacts to public health or safety by this minor change to dose. 6 2016 Effluent and Waste Disposal Annual Report SUPPLEMENTAL INFORMATION Facility: Donald C. Cook Nuclear Plant Licensee: Indiana Michigan Power Company 1 REGULATORY LIMITS l. 1 Noble Gases The air dose in unrestricted areas due to noble gases released in gaseous effluents shall be limited to the following: 1.1.l During any calendar quarter, to s 5 mrad/unit for gamma radiation and~ 10 mrad/unit for beta radiation. 1.1.2 During any calendar year, to s 10 mrad/unit for gamma radiation ands 20 mrad/unit for beta radiation. 1.2 Iodines -Particulates 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 effluents released to unrestricted areas shall be limited to the following: 1. 2 .1 During a_ny calendar quarter to s 7. 5 mrem/uni t to any organ. 1.2.2 During any calendar year to s 15 mrem/unit to any organ. 1. 3 Liquid Effluents The dose or dose commitment to an individual from radioactive material in liquid effluents released to unrestricted areas shall be limited: 1.3.1 During any calendar quarter to s 1.5 mrem/unit to the total body and to s 5 mrem/unit to any organ. 1.3.2 During any calendar year to s 3 mrem/unit to the total body and to s 10 mrem/unit to any organ. Al.l-1 I I* ! -I I 2016 Effluent and Waste Disposal Annual Report 1.4 Total Dose The dose or dose commitment to a real individual 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 12 consecutive months. 2 MAXIMUM PERMISSIBLE CONCENTRATIONS 2.1 Gaseous Effluents The dose rate due to radioactive materials released in gaseous effluents from the site shall be limited to the following: 2.1.1 For noble gases: 500 mrem/yr to the total body and 3000 mrem/yr to the skin. 2.1.2 For all radioiodines and for all radioactive materials in particulate form and radionuclides (other than noble gases) with half-lives greater than eight days: 1500 mrem/yr to any organ. The above limits are provided to insure that radioactive material discharged in gaseous effluents will not result in the exposure of an individual in an unrestricted area to annual average concentrations exceeding the limits in 10 CFR Part 20, Appendix B, Table 2, Column 1. 2.2 Liquid Effluents The concentration of radioactive material released at any time from the site to unrestricted areas shall be limited to 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 2 x 10-4 µCi/ml total activity. Al.1-2 I I 1 l 2016 Effluent and Waste Disposal Annual Report 3 AVERAGE ENERGY The average energy (E) of the radionuclide mixture in releases of fission and activation gases as defined in Regulatory Guide 1.21, Appendix B, Section A.3 is not applicable because the limits used for gaseous releases are based on calculated dose to members of the public. Release rates are calculated using an isotopic mix from actual samples rather than average energy. 4 MEASUREMENTS and APPROXIMATIONS of TOTAL RADIOACTIVITY 4.1 Fission and Activation Gases Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. 4. 2 Iodines Sampled on iodine adsorbing media, and analyzed on an 8192 channel analyzer and HpGe detector. 4.3 Particulates Sampled on a glass filter and analyzed on an 8192 channel analyzer and HpGe detector. Sr-89 and Sr-90 analyses are performed by offsite vendor. 4 . 4 Liquid Effluents Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. Fe-55, Sr-89 and Sr-90 analyses are performed by an offsite vendor. Ni-63 is also currently being analyzed by the offsite vendor in response to evaluation of the 10 CFR 61 sample results. Al.1-3 L 2016 Effluent and Waste Disposal Annual Report 5 BATCH RELEASES 5.1 Liquid 5 .1.1 Number of batch releases: 14 releases in the 1st quarter, 2016 -20 releases in the 2"rl quarter, 2016 22 releases in the 3n1 quarter, 2016 33 releases in the 4th quarter, 2016 5.1.2 Total time period for batch releases: .§l_,, 822 minutes 5 .1.3 Maximum time for a batch release: 1,814 minutes 5.1.4 Average time period for batch release: 695 minutes 5.1.5 Minimum time period for a batch release: 91 minutes 5.1.6 Average stream flow during periods of release of effluent into a flowing stream: 6.44E+5 gpm circulating water Al.1-4 2016 Effluent and Waste Disposal Annual Report 5. 2 Gaseous 5.2.1 Number of batch releases: 143 releases in the 1st quarter, 2016 --134 releases in the 2nd quarter, 2016 154 releases in the 3rd quarter, 2016 90 releases in the 4th quarter, 2016 5.2.2 Total time period for bat.ch releases: 7,392 minutes 5.2.3 Maximum time for a batch release: 354 minutes 5.2.4 Average time period for batch release: 14 minutes 5.2.5 Minimum time period for a batch release: 1 minutes Al.1-5 2016 Effluent and Waste Disposal Annual Report. 6 ABNORMAL RELEASES 6 .1 Liquid 6.1.1 Number of Releases: 1st Quart.er 0 2nd Quarter 0 3rd Quarter 0 4"" Quarter l* 6.1.2 Tot.al activity released (Ci}: 6 .2 Gaseous l3l Quarter 0 2"d Quarter 0 6.2.1 Number of Releases: 1st: Quarter 0 2nd Qua:r:_!:e!: 0 3rrJ Quarter 0 4 u-..... _Quarter 1.7le-04 3rd Quarter

4Lh Quarter 0 0 6.2.2 Total activity released (Ci): 1st Quarter 0 2'"1 Quarter 0

Discussed on page 2 of this document.. Al.1-6 3rd Quarter._: 0 4th Quarter 0 2016 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! 11. FISSION GASES I H3 AR41 KR85 XE133 XE135 XE131m XE133m XE135m I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES I131 I132 I133 I Ci I Ci I Ci !Total for Period I Ci 13. PARTICULATES MN54 C060 CS137 I Ci I Ci I Ci !Total for Period I Ci 1.91E+Ol 3.00E-01 7.12E-06 1.03E+Ol 2.68E-01 3.00E+Ol 6.68E-05 6.79E-05 1.35E-04

DENOTES SUPPLEMENTAL ISOTOPES 1. 92E+Ol 8.12E-07 3.65E-02 4.00E+OO 2.92E-01 7.05E-03 4.67E-04 2.35E+Ol 1. 05E-03 5.76E-06 1.44E-04 1. 20E-03 Al.1-7 2.51E+Ol 3.61E-02 2.51E+Ol 2.83E-05 2.21E-04 2.49E-04 6.lBE+Ol 1. 55E+OO 6.34E+Ol 9.69E-04 2.52E-03 1.0BE-05 3.50E-03 2016 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES BATCH MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! 11. FISSION GASES I H3 AR41 KR85 XE131M XE133M XE133 XE135m XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES I131 I133 I Ci I Ci !Total for Period I Ci 13. PARTICULATES CS137 I

BR82 I Ci I Ci !Total for Period I Ci 2.83E-01 2.86E-01 4.57E-01 1.98E-02 7.0lE-03 1.67E+00 2.24E-03 2.73E+OO 1.33E-08 1. 33E-08

DENOTES SUPPLEMENTAL ISOTOPES 1.28E-01 1. 33E-01 8.70E-01 5.55E-03 1. 99E-01 2.83E-04 5.57E-03 1.34E+00 1.28E-02 1. 28E-02 Al.1-8 1.1 7E-01 2.24E-01 9.24E-01 3.24E-01 8.02E-03 1.60E+OO 2.32E-01 2.lBE-01 3.97E-01 3.04E-03 3.BlE-01 7.16E-04 2.20E-02 1. 25E+00 2016 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES Units 1st 2nd 3rd 4th [Est. I Quarter I Quarter I Quarter I Quarter [Total I I I I [Error,%[ [A. [FISSION AND I [ACTIVATION GASES I fl. [Total Release I Ci I 1.34E+Ol[ 5.56E+00[ 1.52E+00[ 2.57E+00[ 11.4 [2. [Average release I [rate for period fuCi/secf 1.71E+001 7.07E-01[ 1.91E-01[ 3.23E-011 I I I I I I 13. [Percent of I% Gamma I 6.77E-021 1.34E-02[ 2.60E-02[ 3.llE-02[ !applicable limit* I Beta I 4.95E-021 9.26E-031 7.22E-02[ 3.22E-02[ fB. I IODINES fl. I Total I-131 I Ci I 6.39E-051 l.38E-021 1.48E-041 9.69E-04[ 12.8 [2. !Average release I [rate for period fuCi/secf 8.12E-061 l.76E-03[ 1.86E-05[ l.22E-04[ I I I I I I 13. I Percent of I % I [applicable limit* I fC. [PARTICULATES fl. [Particulates with[ Ci I [half lives>8 days[ I 2.31E-05[ 5.02E-031 5.31E-05[ 3.48E-04[ I I I I I I O.OOE+OO[ O.OOE+OOI O.OOE+OO[ O.OOE+OO[ N/A I I I I I [2. [Average release I Irate for period [uCi/secl O.OOE+OOI O.OOE+OOI O.OOE+OO[ O.OOE+OO[ I I I I I I 13. [Percent of I % I [applicable limit* I 14. [Gross alpha I !radioactivity ID. [TRITIUM I Ci I I Ci I O.OOE+OOI O.OOE+OOI O.OOE+OO[ O.OOE+OOI I I I I I f<7.98E-07[<6.25E-07f<8.16E-07[<8.91E-07[ I I I I I I 1.94E+Oll 1.93E+Oll 2.52E+Oll 6.19E+Oll 12.6 fl. I Total Release [2. [Average release I [iate for period [uCi/secf 2.47E+00[ 2.46E+OOI 3.17E+OOI 7.79E+OOI I I I I I I 13. [Percent of I % !applicable limit* I I 1.41E-021 l.40E-021 1.SlE-021 4.44E-021 I I I I I

Applicable limits are expressed in terms of dose. See Appendices Al.2-1 through Al.2-4 Al.1-9 2016 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CS137 I Ci I Ci 7.63E-03 BATCH MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CRSl MNS4 FESS COSS C060 NI63 I *KRBS ZR9S NB9S M099 TC99m AGllOm SB124 SB12S CS134 CS137 Il31 I *XE133 I *XE133m I *XE13lm I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci 3.67E+02 8.S6E-06 9.00E-OS 3.00E-04 1. 36E-OS 3.79E-06 4.0SE-06 4.60E-04

DENOTES SUPPLEMENTAL ISOTOPES 4.19E+02 2.32E-06 7.38E-OS l.39E-04 S.43E-07 2.64E-OS 6.86E-06 8.27E-06 2.0SE-OS 3.67E-03 l. lBE-OS l.38E-04 Al.1-10 l.26E+03 l.28E-06 2.30E-0S 2.33E-OS 7.BBE-06 8.lBE-06 2.13E-06 3.BBE-03 l.84E-OS 2.BBE+02 l.69E-06 2.09E-04 6.86E-OS l.94E-06 l. llE-06 8.49E-06 4.62E-OS 4.S9E-OS 1. 74E-04 3.69E-06 4.BOE-03 2.86E-OS S.78E-OS IA. I FISSION AND I I ACTIVATION I I PRODUCTS 11. !Total Release 12. !Average diluted I I concentration I lduring period J3. I Percent of 2016 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES BATCH MODE Units 1st 2nd 3rd 4th I Est. I Ci luCi/ml I I % I Quarter I Quarter I Quarter I Quarter !Total I I I I IError,%1 I 4.20E-041 2.78E-041 6.57E-051 5.61E-04I 12.6 2.16E-lll 9.58E-121 9.95E-131 l.55E-lll I I I I I I I I I !applicable limit I I 2.05E-041 2.88E-041 l.92E-051 7.32E-041 I I I I I I B. I TRITIUM 11. !Total Release J2. !Average diluted I I concentration I lduring period 13. I Percent of I Ci luCi/ml I I % I 3.67E+021 4.19E+02J l.26E+031 2.88E+021 10.1 l.88E-051 l.44E-051 l.91E-051 7.95E-06J I I I I I I I I I !applicable limit I I l.88E+OOJ l.44E+OOI 1.91E+OOI 7.95E-011 I I I I I JC. I DISSOLVED AND I !ENTRAINED GASES 11. I Total Release 12. !Average diluted I I concentration I lduring period I 3. I Percent of I Ci luCi/ml I I % I 4.60E-041 3.82E-03J 3.90E-031 4.89E-031 11.4 I 2.36E-111 2.12E-111 l.16E-111 1.35E-101 I I I I I I I I I !applicable limit I I 1.18E-05J 1.06E-051 5.BOE-061 6.74E-05J I I I I I I D. I GROSS ALPHA I I RADIOACTIVITY I JTOTAL RELEASE IE. IVOLUME OF WASTE I I RELEASED I F. I VOLUME OF I !DILUTION WATER I I USED DURING I IPERIOD Ci l<l.09E-041<1.47E-041<8.17E-051<3.81E-051 N/A I I I I I I I I I I I Liters! l.34E+061 7.47E+061 1.67E+061 1.92E+061 I I I I I I Liters I I I I 1. 95E+10 I I I I 1. 80E+ll I I I I Al .1-11 3. 36E+ll I I I I 3.63E+101 I I I 2.00 I I 3.48 IA. I FISSION AND I !ACTIVATION I !PRODUCTS 11. !Total Release 12. !Average diluted I !concentration I !during period 13. !Percent of 2016 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES CONTINUOUS MODE Units 1st 2nd 3rd 4th !Est. I Ci [uCi/ml I I % I Quarter I Quarter I Quarter I Quarter !Total I I I I !Error,%! I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI N/A O.OOE+OO[ 0.00E+OO[ O.OOE+OOI O.OOE+OOI I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OOI O.OOE+OOI 0.00E+OOI I I I I I IB. !TRITIUM 11. !Total Release 12. !Average diluted I !concentration I !during period 13. !Percent of I Ci luCi/ml I I % I O.OOE+OOI 7.63E-031 O.OOE+OOI O.OOE+OOI 22.8 O.OOE+OOI 5.07E-111 O.OOE+OOI 0.00E+OO[ I I I I I I I I I !applicable limit I I O.OOE+OOI 5.07E-061 O.OOE+OOI O.OOE+OOI I I I I I IC. !DISSOLVED AND I [ENTRAINED GASES [1. !Total Release 12. [Average diluted I [concentration I [during period [3. [Percent of I Ci luCi/ml I I % I O.OOE+OOI O.OOE+OO[ 0.00E+OO[ O.OOE+OO[ N/A O.OOE+OOI O.OOE+OOI O.OOE+OOI 0.00E+OOI I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OO[ O.OOE+OOI O.OOE+OO[ I I I I I ID. I GROSS ALPHA I !RADIOACTIVITY I [TOTAL RELEASE IE. !VOLUME OF WASTE I [RELEASED IF. [VOLUME OF I [DILUTION WATER I !USED DURING I !PERIOD Ci O.OOE+001<5.69E-041 O.OOE+OOI O.OOE+OOI N/A I I I I I I I I I Liters[ O.OOE+OOI 6.36E+061 O.OOE+OO[ O.OOE+OOI I I I I I I Liters! I I I O.OOE+OO[ I I I 1.51E+lll I I I Al.1-12 O.OOE+OOI I I I O.OOE+OOI I I I 2.00 I I 3.48 2016 Effluent and Waste Disposal Annual Report . . J "'======~-~==S=o=l=id=W=a=st=e=a=n=d=l=rr=a=d=ia=te=d=F=ue=l=S=h=i=pm=e=nt=s===-=-=-= _ --**------~ Solid Waste Shipped Offsite for Burial or Disposal 1) Type of Waste Unit Estimated amount Estimated Total Error,% --. --a) Spent resins, filters, sludge, m3 1.34E+01 1.00E+OO evaporator bottoms, etc. Curies 1.26E+02 3.75E+OO ---~-b) Dry compressible waste, m3 1.09E+03 1.00E+OO contaminated equipment, etc. Curies 1.87E+OO 6.48E+OO ---Irradiated components, control m3 c) Curies rods, etc. -d) Other (contaminated soil) m3 Curies ~~--M------------1 2) Estimate of Principle Radionuclide Composition --a) H-3 9% Co-58 1% Sb-125 1% Cs-137 / 1% Mn-54 0.5 % Co-60 19 % Cs-134 0.5 % Fe-55 13 % Ni-63 54% C-14 1% -b) Ni-59 1% Co-58 1% Sb-125 4% Mn-54 1% Co-60 39.5% Zr/Nb-95 2% Fe-55 36% Ni-63 12.5% Cs-137 2.5 % C-14 0.5 % 3) Solid Waste Disposition -. -. Mode of Transportation Destination 25 Truck Oak Ridge, TN 1 Truck Erwin, TN **-* 2 Truck Clive, UT 5 Truck Wampum, PA 4) Type of Containers used for Shipment: Containers used are excepted packages, Type A, Sea Land, metal boxes, drums, tankers, and hi h inte rit containers (HICs). 5) Solidification Agent: There were no solidifica~ions performed during this report period. AI.1-13 -I ( I I !

[-2016 Eftl~ent and Waste Disposal Am;~al Report Yearly Release --1 _ Rates . . --* -*--~ . -----GASES .. *---*-. .. Fission and Activation Gases Total Release 2.3 IE+Ol Curies .--Average Release Rate 7 .3IE-01 ~tCi/sec f----% of Applicable Limits

y 3.46E-02 % !3 4.08E-02 % *-* *-*-... --* Iodines Total 1-131 Release I .50E-02 Curies ---~--"" Average Release Rate 4.75E-04 ~tCi/sec % of Applicable Limit* I .99E+OO % ~* Particulates Total Release 0.00E-00 Curies Average Release Rate O.OOE-00 ~tCi/sec % of Applicable Limit* O.OOE-00 % LIQUIDS ----Fission and Activation Products Total Release I .32E-03 Curies Average Diluted Concentration 8.78E-12 µCi/ml % of Applicable Limits

Total Body l .07E+OO % Organ 3 .23E-01 %

Applicable limits are expressed in terms of the annual 10 CFR 50, Appendix I, dose limits. Al.1-14 ... ------I ----

Site Boundary and Nearest Residence Listing The following distances were used in the calculation of the maximum individual doses: Sector Direction Bo:1;1ndary (Meters) Nearest Residence (Meters) -*~*--*-* A N 651 659 B NNE 617 660 C NE 789 943 D ENE 1497 1747 E E 1274 1716 F ESE 972 1643 G SE 629 1640 H SSE 594 964 J s 594 997 K SSW 629 942 Al.1-15 Summary of Maximum Individual Doses First Quarter 2016 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 1.27E-02 Child Receptor 1 8.47E-01 1.5E+O Liquid Liver 1.27E-02 Child Receptor 1 2.55E-01 5.0E+O Noble Gas Air Dose 3.39E-03 Any 594 (SSE) 6.77E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 4.95E-03 Any 594 (SSE) 4.95E-02 1.0E+l (Beta-mrad) Age Iodines and Thyroid l.15E-02 Child 659 (N) 1.53E-Ol 7.5E+O Particulates Al.2-1 Summary of Maximum Individual Doses Second Quarter 2016 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 1.32E-02 Child Receptor 1 8.SOE-01 l.5E+O Liquid Liver l.32E-02 Child Receptor 1 2.65E-01 5.0E+O Noble Gas Air Dose 6.70E-04 Any 594 (S) l.34E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 9.26E-04 Any 594 (S) 9.26E-03 l.OE+l (Beta-mrad) Age Iodines and Thyroid 4.46E-01 Child 997 (S) 5.95E+OO 7.5E+O Particulates Al.2-2 Summary of Maximum Individual Doses Third Quarter 2016 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 3.47E-02 Child Receptor 1 2.3 lE+OO l.5E+O Liquid Liver 3.47E-02 Child Receptor 1 6.95E-01 5.0E+O Noble Gas Air Dose l.30E-03 Any 651 (N) 2.60E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 7.22E-03 Any 594 (SSE) 7.22E-02 1.0E+l (Beta-mrad) Age Iodines and Thyroid 4.58E-02 Child 659 (N) 6.llE-01 7.5E+O Particulates Al.2-3 Summary of Maximum Individual Doses Fourth Quarter 2016 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 1.05E-02 Child Receptor 1 6.98E-01 1.5E+O Liquid Liver 1.12E-02 Child Receptor 1 2.24E-01 5.0E+O Noble Gas Air Dose 1.55E-03 Any 594 (S) 3.llE-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 3.22E-03 Any 594 (S) 3.22E-02 1.0E+l (Beta-mrad) Age Iodines and Thyroid 9.34E-02 Child 659 (N) l.25E+OO 7.5E+O Particulates Al.2-4 L_ _____ _

Date 03/10/2016 06/29/2016 12/06/2016 12/12/2016 2016 GP! Sample Data Samples analyzed for tritium. Values noted are in 111 icrocuries per milliliter (uCi/mL) Lower Limit of Detection= LLD MW-22D MW-MW-22S MW-24D MW-MW-24S MW-25D 22M 24M <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD MW-25M <LLD <LLD (Nole: Wells MW-22 through MW-27 are multi-po11 wells installed in the rail of 2009, with three sample points placed al different depths. S= Shallow M= Middle D=' Deep.) (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally nagged and documented in the analysis section.) Date 03/10/2016 12/06/2016 2016 GPI Sample Data Samples analyzed for tritium. Values noted are in rnicrocuries per milliliter (uCi/mL) Lower Limit of Detection= LLD MW-25S <LLD <LLD MW-26D <LLD <LLD MW-26M <LLD <LLD MW-26S <LLD <LLD MW-27D <LLD <LLD MW-27M <LLD <LLD MW-27S <LLD <LLD (Note: Wells MW-22 through MW-27 are rnulti-po1t wells installed in the Fall of 2009, with three sample points placed at different depths. S= Shallow M= Middle D= Deep.) (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) A 1.3-1 2016 GP! Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD Date W-1 W-2 W-3 W-4 W-5 W-6 W-7 W-8 01/05/2016 <LLD <LLD 01/06/20!6 <LLD 01/08/2016 <LLD <LLD 01/15/2016 <LLD <LLD <LLD 02/03/2016 <LLD 03/11/2016 <LLD 03/31/2016 <LLD <LLD 04/07/2016 <LLD <LLD 04/14/2016 <LLD <Ll,D <LLD <LLD 05/05/2016 <LLD 06/28/2016 <LLD <LLD 06/29/2016 <LLD <LLD <LLD 06/30/20 ! 6 <LLD <LLD <LLD 08/11/2016 <LLD 09/01/2016 <LLD I 0/07/2016 <LLD <LLD <LLD I0/19/2016 <LLD J0/20/2016 <LLD <LLD 10/21/2016 <LLD <LLD J 1/18/2016 <LLD 12/09/2016 <LLD (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally nagged and documented in the analysis section.) Al.3-2 I I I 2016 GP! Sample Data Samples analyzed for tritium. Values noted are in microcurics per milliliter (uCi/mL) Lower Limit of Detection= LLD Date SG-J SG-2 SG-4 SG-5 EW-19 MW-20 MW-21 EW-18 01/06/2016 <LLD <LLD <LLD <LLD <LLD 01/07/2016 <LLD <LLD 03/10/2016 <LLD 03/31/2016 <LLD <LLD 04/05/2016 <LLD 04/07/2016 <LLD <LLD <LLD <LLD 06/28/2016 <LLD <LLD 06/29/2016 <LLD <LLD <LLD <LLD 07/11/2016 <LLD 08/05/2016 <LLD 10/20/2016 <LLD <LLD 10/21/2016 <LLD <LLD <LLD <LLD 12/07/2016 <LLD (Note: A "*1' symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) 2016 GP! Sample Data Samples analyzed for tritium. Values noted arc in rnicrocuries per milliliter (uCi/mL) Lower Limit of Detection= LLD Date OW-1 OW-2 OW-4 MW-28 MW-29 02/03/2016 <LLD <LLD <LLD 1.25e-6 <LLD 03/11/2016 <LLD <LLD <LLD 1.22e-6 <LLD 04/14/2016 <LLD 04/21/2016 <LLD <LLD l .34e-6 <LLD 05/05/2016 <LLD <LLD l.22e-6 <LLD 06/06/2016 <LLD <LLD l.33e-6 * <LLD* 07/22/2016 <LLD <LLD <LLD l.08e-6 <LLD 08/09/2016 <LLD <LLD 1. I Se-6 <LLD 09/15/2016 <LLD <LLD <LLD <LLD 09/21/2016 <LLD I 0/07/2016 <LLD 11/21/2016 <LLD <LLD <LLD <LLD 12/06/2016 <LLD 9.48e-7 <LLD 12/13/2016 <LLD (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) A 1.3-3 2016 GP! Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection = LLD Date W-9 W-10 W-11 W-12 W-13 W-14 W-15 01/06/2016 <LLD <LLD 01/07/2016 <LLD <LLD <LLD <LLD Ol/08/2016 <LLD <LLD 03/31/2016 <LLD <LLD <LLD <LLD <LLD 04/07/2016 <LLD <LLD 06/28/2016 <LL[) <LLD <LLD <LLD <LLD 06/29/2016 <LLD <LLD 10/19/2016 <LLD <LLD <LLD <LLD <LLD <LLD 10/21/2016 <LLD (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results aho\ic LLD will be additionally nagged and documented in the analysis section.) Analysis of the Sample Data The Groundwater Protection Initiative (GPl) Sample Data for 20 I 6 indicates no groundwater contamination in excess of the reporting threshold of2.00E-5 uCi/mL for tritium. Gamma spectroscopy was perfo1111ed on all Radiological Environmental Monitoring Program wells quarterly. Those results are not actual GP! results so are not included in the ARERR, but are part of CNP's 2016 Annual Radiological Environmental Operating Report. There were no positively identified gamma radionuclides from plant effluents detected in any of the GP! well samples, and a single we] I with trace levels of tritium just above detection limits. The LLD value used for tritium counting of the samples varied between 9.42E-7 and 9.59E-7uCi/mL, depending on which scintillation counter was used. This is well below the required maximum LLD value of2.00E-6 uCi/mL per the ODCM. No tritium values were found significantly above LLD for 2016, though values found above the LLD are not . abnormal, unexpected, or inconsistent with past sampling history. The samples observed above LLD historically were expected results from the release oftritiated water into the Absorption Pond, a licensed pathway and pm1 of plant design, or the result ofrecapture deposition of tritium from licensed radioactive gaseous release points. The 2016 results were within expected parameters considering the reduction in tritium released to the Absorption Pond and typical rainfall recapture of tritium experienced. Wells located inside the Protected Area of the plant are subject to recapture deposition of tritium and may show occasional sample results above LLD values following rainfalls and snow melt. The results observed in 2016 continue to reflect normal expectations and behaviors as they relate to recaptured tritium for the weather conditions observed in 2016. Well MW-28 lies close to the vent stacks in the predominant wind direction, so it is expected to observe recaptured tritium from precipitation periodically. The sample data indicates that no radioactive spills or unidentified leaks have occurred in 2016 impacting groundwater. The sample 1:esults indicate proper well placement to ensure the protection of the groundwater and early identification of any abnormal conditions involving groundwater. This is validated by the demonstrated ability to monitor percolation from the Absorption Pond and recaptured tritium in precipitation, with flow direction and behavior acting as described in the plant licensing documents. A I.3-4 Site: AEP Cook Joint Frequency Distribution Hours at Each \Vinci Speed and Direction Total Period Period of Record= 01/01/2016 -03/31/2016 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable \Vinci Speed (mph) Wind Direction t-4 4-8 8 -13 IJ -19 19-25 > 25 Total N 1 4 19 9 I 3 37 NNE 0 I 2 1 () 0 4 NE 0 2 6 2 () 0 10 ENE 0 I 8 3 0 0 12 E 0 6 12 I 0 0 19 ESE I 5 7 4 0 0 17 SE 0 3 8 7 I 0 19 SSE 0 4 16 12 0 0 32 s 0 2 17 14 2 0 35 SSW 0 I 5 18 3 0 27 SW 0 2 5 16 I 1 25 WSW 0 10 15 13 3 3 44 w 0 6 14 16 1 0 37 WNW 1 9 IO 10 8 0 38 NW 1 9 20 14 6 3 53 NNW 1 9 22 7 0 0 39 Total 5 74 186 147 26 10 448 Calm I-lours not Included above for: Total Period 2 Vnlid Hours for this Stability Class for: Total Period 448 Total Hours for Period 2184 A2.1-1 Site: AEP Cook .Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record"" 01/01/2016 -03/31/2016 Elevation: Speed: SPD60Jvl Direction: DIR60M Lapse: DT60M Stnbility Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction I -4 4-8 8 -1.3 13 -19 19 -25 > 25 Total N 0 4 7 3 0 0 14 NNE 0 I 0 I 0 0 2 NE 0 3 2 l 0 0 6 ENE I 2 2 I 0 7 E 0 3 4 3 2 0 12 ESE 0 I 0 I 0 0 2 SE 0 2 I 0 0 0 3 SSE l l 6 2 0 0 10 s 0 4 3 3 3 0 13 SSW 0 3 2 5 I 12 SW 0 5 3 9 2 0 19 WSW 1 I 7 9 4 1 23 w 4 15 18 0 41 .) WNW I 0 4 1 I 13 0 29 NW 0 I 5 6 7 5 24 NNW 0 2 10 8 I l 22 Total 5 34 60 76 56 8 239 Cnlm Hours not Included above for : Total Period 2 Valid Hours for this Stability Class for: Total Period 239 Total Hours for Period 2184 A2.1-2 Site: AEI' Cook ,Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Recnnl = 01/01/2016 -03/3 I /20 16 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction LJ 4-8 8-U 13 -19 19 -25 > 25 Total N l 3 10 13 4 0 31 NNE 0 6 3 l 0 l 1 NE 1 2 5 5 0 14 ENE I 2 1 0 0 0 4 E 0 2 2 1 1 0 6 ESE 0 I 3 9 2 1 16 SE 6 6 9 0 0 22 SSE 0 [ 15 4 0 0 20 s 0 3 8 6 0 18 SSW 0 3 3 7 4 18 SW 0 I 5 4 0 0 10 WSW 0 4 2 3 5 15 w 0 l 6 21 12 J 43 WNW 0 1 7 41 24 3 76 NW 3 5 16 20 2 47 NNW 0 2 28 24 5 60 Total 5 35 82 . 170 102 17 411 Calm Hours not Included above for: Total Period 2 Valid Hours for this Stability Class for: Total Period 411 Tot11I Hours for Period 2184 A2.1-3 Site: AEP Cook .Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = Ol/01/2016 -03/31/2016 l~levation: Speed: SPD60M Direction: DIR60M Lnpsc: DT60iVI Stability Clnss D Delta Temperature Neutral Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19-25 > 25 Totnl N 0 11 15 2 2 3 33 NNE 0 6 17 4 2 0 29 NE 0 6 5 0 0 12 ENE I 2 3 0 0 7 E 2 3 3 9 2 0 19 ESE 1 5 12 6 8 2 34 SE 2 4 19 9 4 I 39 SSE I 5 22 9 5 2 44 s 0 6 20 40 11 3 80 SSW 1 5 16 56 15 0 93 SW l 4 16 21 12 3 57 WSW 0 3 19 14 15 13 64 w I I 1 11 4 1 19 WNW 0 3 3 16 7 30 NW I 3 9 14 5 33 NNW 2 2 13 16 16 7 56 Total 13 64 194 233 108 37 649 Calm Hours not lncluclecl above for: Totnl Period 2 Valid Hours for this Stability Class for: Total Period 649 Total Hour~ for Period 2184 A2.1-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2016 -03/3 I /2016 Elew1tion: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind S1>eed (mph) Wind Direction I -4 4-8 8-13 13 -19 19-25 > 25 Total N 2 0 4 0 0 0 6 NNE 0 5 8 0 0 0 13 NE 0 10 7 3 0 0 20 ENE I 6 7 I 0 0 15 E 0 I 13 0 0 0 14 ESE 0 3 14 1 I 0 19 SE 0 9 15 I I 0 0 35 SSE 0 2 24 16 0 0 42 s 0 3 14 18 I 37 SSW 0 0 20 18 4 0 42 SW I 2 9 I 5 0 18 WSW I 2 6 3 0 3 15 w 0 0 I I 0 0 2 WNW 0 I 3 0 0 0 4 NW 1 I 0 0 0 3 NNW 0 5 2 0 0 1 8 Total 6 50 148 73 II 5 293 Calm Hours not Included above for: Total Period 2 Valid Hours for this Stability Class for: Total Period 293 Total Hours for Period 2184 A2.1-5 Sile: AEP Cook ,Joint Frec1uency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record == 01/01/2016 -03/3 I /2016 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Della Tcmptmtture Moderately Stable Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 1 0 0 0 0 J. NNE I 2 2 0 0 0 s NE 0 0 .., 0 0 0 .., .J .J ENE 0 l 0 0 0 2 E 0 1 J 0 0 0 4 ESE 0 2 7 0 0 0 9 SE 0 2 7 2 0 0 11 SSE 0 3 4 4 0 0 11 s 0 4 5 2 0 0 11 SSW 0 2 0 6 0 0 8 SW 0 0 0 l 0 0 1 WSW I 0 1 0 0 0 2 w 0 0 0 0 0 0 0 WNW 0 2 0 0 0 0 2 NW 0 l 0 0 0 0 I NNW 0 J 0 0 0 2 Total 2 22 34 15 0 0 73 Calm Hours not lncluclecl above for: Total Period 2 Valid Hours for this Stability Class for: Total Period 73 Total Hours for Period 2184 A2.1-6 Site: AEP Cook .Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record "" 01/01/2016 -03/31/2016 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class G Delta Tcmµcralure Extremely Stable \Vind Speed (m1)h) Wind Direction LJ 4-8 8 -13 13 -19 19-25 > 25 Total N I 0 0 0 0 0 I NNE 0 0 0 0 0 0 0 NE 0 I 0 0 0 0 ENE 0 I 0 I 0 0 2 E 0 2 2 0 0 0 4 ESE 0 3 5 0 0 0 8 SE 0 2 3 0 0 6 SSE 0 0 2 0 0 3 s I 0 1 0 0 0 2 SSW 0 0 4 I 0 0 5 SW 0 1 5 0 0 0 6 WSW 2 0 l () 0 0 3 w 0 0 0 0 2 WNW I 0 () 0 0 2 NW 0 2 0 0 0 .., J NNW 0 0 () 0 0 Total 5 14 25 5 0 0 49 Calm Hours not Included above for: Total Period 2 Valid Hours for this Stability Class for: Total Period 49 Total Hours for Period 2184 A2.1-7 Site: AEP Cook Joint Frequency Distribution Hours a! Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record "" 01/01/2016 -03/3 1/2016 Elevation: Speed: SPD60iVI Direction: DIR60M Lapse: DT60M Della Temperature Wind Speed (mph) Wind Direction !...:...1 4-8 8 -13 13 -19 19-25 > 25 Total N 5 23 55 27 7 6 123 NNE 1 16 35 9 ... 0 64 j NE 18 26 16 5 0 66 ENE 4 14 22 8 0 49 E 2 18 39 14 5 0 78 ESE 2 20 48 21 11 3 105 SE 3 28 59 39 5 I 135 SSE 2 16 88 49 5 2 162 s 22 68 83 17 5 196 SSW 12 51 108 31 2 205 SW 2 15 43 52 20 4 136 WSW 5 20 51 42 27 21 166 w 2 13 26 64 35 4 144 WNW 3 17 27 78 52 4 181 NW 4 19 42 50 38 11 164 NNW ... 22 49 59 41 14 188 .J Total 41 293 729 719 303 77 2162 Calm Hours not lnclucled above for: Total Period 2 Vnriable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 20 Valid Hours for this Stability Class for: Total Period 2162 Total Hom*s for Period 2184 A2.1-8 Site: AEP Cook ,Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2016 -06/30/2016 Elevation: Speed: SPD60M Direction: D!R60M Lapse: DT60M Stability Class A Ddla Temperature Extremely Unstable Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 23 24 2 I 53 .) NNE 0 0 0 1 0 0 1 NE 0 0 5 2 0 0 7 ENE 0 2 0 2 () 0 4 E 0 5 5 15 2 0 27 ESE 2 3 15 8 1 0 29 SE 0 6 6 8 3 0 23 SSE 0 I 11 8 0 0 20 s 0 2 6 3 2 1 14 SSW 0 0 I 2 2 () 5 SW 0 0 3 4 3 0 10 WSW 0 2 11 12 0 0 25 w 0 4 11 5 0 I 21 WNW 0 3 5 4 0 1 13 NW 0 6 15 11 7 0 39 NNW 0 9 37 20 7 8 81 Total 2 46 154 129 29 12 372 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 372 Total Hours for Period 2184 A2.2-1 Site: AEP Cook .Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 04/0 I /20 16

06/3 0/20 16 Elevation: Speed: SPD60M Direction: DiR601VI Lapse: DT60M Stability Class 13 Delta Temperature Moderately Unstable Wind Direction N NNE NE ENE E ESE SE SSE s SSW SW WSW w WNW NW NNW Total I -4 0 0 0 1 0 0 0 0 0 0 0 I 0 0 1 0 3 4-8 3 I 0 0 I 2 2 4 2 0 I I 2 4 4 0 27 Calm Hours not Included above for: Valid Hours for this Stability Class for: Total Hours for Period Wind Speed (mph) 8-13 13-19 19-25 12 I I 3 4 0 0 4 I 0 I 2 0 6 2 0 I 14 2 4 2 I 4 I 0 I 2 2 3 1 2 3 10 6 I 5 0 0 1 0 0 7 6 3 8 11 10 71 63 25 Total Period Total Period A2.2-2 > 25 I 0 0 0 0 0 () 0 0 0 0 I 0 0 0 5 7 Total 30 5 5 4 9 19 9 9 6 6 7 20 7 5 21 34 196 0 196 2184 ------~

Site: AEP Cook ,Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 04/01/2016 -06/30/20 I 6 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction I -4 4-8 8-13 13 -19 19-25 > 25 Total N I 6 I I 6 8 I ...... .).) NNE 0 2 2 0 0 0 4 NE 0 I 2 I 0 0 4 ENE 0 2 11 4 0 0 17 E 0 0 11 4 .0 0 15 ESE 0 3 8 6 I 0 18 SE I 2 9 2 3 0 17 SSE 0 3 6 4 2 0 [5 s 0 I 7 2 () 0 [0 SSW 0 0 0 3 0 0 ... _l SW 0 0 7 3 0 0 10 WSW 0 2 9 1 1 0 13 w 0 1 6 3 0 1 11 WNW 0 I 2 2 0 0 5 NW 0 2 9 5 2 0 18 NNW 0 5 IO 15 5 3 38 Total 2 31 I 10 61 22 5 231 Calm Hours not Included :ihove for: Total Period 0 Valid Hours for this Stability Class for: Total Period 231 Total Hours for Period 2184 A2.2-3 Site: AEI' Cook Joint Frequency Distribution I lours al Each Wind Speed and Direction Total Period Period of Record = 04/01/2016 -06/30/20 I 6 Elel'ation: Speed: SPD60lvl Direction: D1R60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction LJ 4 -8 8 -13 13 -19 19-25 > 25 Total N 2 9 35 12 2 0 60 NNE 0 I I 13 3 0 0 27 NE 0 6 I I 1 0 0 18 ENE I 6 9 4 0 0 20 E 2 7 12 4 I 0 26 ESE 0 I I 27 22 6 0 66 SE I 3 28 12 I () 45 SSE 0 4 18 13 2 0 37 s 0 3 22 16 4 0 45 SSW 2 I 20 12 1 1 37 SW 2 4 18 19 4 I 48 WSW I 8 26 7 2 0 44 w 0 16 14 11 0 42 WNW I 21 10 5 0 38 NW 2 14 19 12 7 1 55 NNW 0 16 32 6 0 0 54 Total 14 140 314 159 32 3 662 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 662 Total Hours for Period 2184 A2.2-4 I j Site: AEP Cook Joint F1*equency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2016 -06/30/20 I 6 Elevation: Speed: SPD60M Direction: DIR60M Lapse:* DT60M Stability Class F Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19-25 > 25 Total N 1 21 8 () 0 0 30 NNE 0 10 9 0 0 0 19 NE I 6 11 I 0 0 19 ENE l 4 4 0 0 0 9 E 0 4 6 0 0 0 10 ESE 0 4 19 9 0 0 32 SE 3 7 10 9 0 0 29 SSE 0 2 19 6 0 0 27 s 1 7 14 13 0 0 35 SSW 2 7 13 10 0 0 32 SW 0 6 12 4 l 0 23 WSW l 12 14 10 2 0 39 w 2 11 7 4 I 0 25 WNW l 10 2 .., 0 0 16 .J NW 0 5 2 0 0 0 7 NNW 2 10 5 0 0 0 17 Total 15 126 155 69 4 0 369 Calm Hours not Included above for: Totiil Period 0 Valid Hours for this Stability Class for: Total Period 369 Total Hours for Period 2184 A2.2-5

Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Pcl'iocl of Record = 04/01/2016 -06/30/2016 Elevation: Speed: SPD60M Dil'ection: D1R60M Lapse: DT60M Stability Class f Delta Temperature Moderately Stable Wind Speed (mph) \Vinci Direction LJ 4-8 8-13 13 -19 19-2S > 25 Total N 0 2 I 0 0 0 3 NNE 0 2 4 0 0 0 6 NE 2 6 13 0 0 0 21 ENE I 5 9 I 0 0 16 E 2 0 5 2 0 0 9 ESE 1 2 10 I 0 0 14 SE 2 0 12 3 0 0 17 SSE 0 I 6 3 0 0 10 s 0 I 7 7 0 0 15 SSW 2 1 4 7 0 0 14 SW 0 4 I 0 0 6 WSW 0 I I 0 0 0 2 w I 4 3 () 0 0 8 WNW 0 6 0 0 0 0 6 NW 1 I 0 0 0 3 NNW 0 I 0 0 0 2 Total 12 34 81 25 0 0 152 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 152 Total Hours for Period 2184 A2.2-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 04/01/2016 -06/3 0/20 16 Ji:lcvation: Speed: SPD60M Oircctio11: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction I -4 4-8 8-13 13 -19 19 -25 > 25 Total N 5 2 0 0 0 8 NNE 2 2 6 () 0 0 10 NE 0 2 7 0 0 0 9 ENE 0 6 17 3 0 0 26 E 3 2 13 5 0 0 23 ESE 0 4 12 2 0 0 18 SE 0 4 13 2 0 0 19 SSE 1 I 5 12 0 () 19 s 1 2 5 5 0 0 13 SSW 0 2 6 2 0 0 10 SW 0 5 JO 0 0 0 15 WSW I 5 I 0 0 0 7 w I 8 0 0 0 JO WNW 1 4 2 0 0 0 7 NW 0 2 () 0 0 0 2 NNW 0 2 I 0 0 0 3 Total 11 56 IOI 31 0 0 199 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 199 Total Hours for Period 2184 A2.2-7 Sile: AEP Cook Summary of All Sti1bility Classes Pcl'iod of Record = Joint Frequency Distribution I lours at Each \.Vind Speed and Direction Total Period 04/01120 16 -06/30/2016 Elevation: Speed: SPD60M Direction: D1R60lvl Delta Temperature Lapse: DT60M Wind Speed (mph} Wind Direction l -4 4-8 8 -13 13-19 19 -25 > 25 N s 49 92 53 15 3 NNE 2 28 38 4 0 () NE 3 21 53 6 0 0 ENE 4 25 51 16 0 0 E 7 19 58 32 3 0 ESE 3 29 92 62 10 0 SE 7 24 82 38 s 0 SSE I 16 69 47 4 0 s 2 18 62 48 7 I SSW 6 11 46 39 4 I SW 2 17 55 ...... 11 I .J.J WSW 4 31 72 36 6 I w 4 46 47 23 2 2 WNW 3 49 22 14 I 1 NW 4 34 53 34 19 I NNW 2 43 94 52 22 16 Total 59 460 986 537 112 27 Calm Hours not Included above for: Total Period Variable Direction Hours for: Total Period Invalid Hours for: Total Period Valid Hours for this Stability Class for: Total Period Total Hours for Period A2.2-8 Total 217 72 83 96 119 196 159 137 138 107 119 150 124 90 145 229 2181 0 0 3 2181 2184 Site: t\EP Cook Period of Record = Joint Frequency Distribution I-lours at Each Wind Speed and Direction Total Period 07/0I/2016 " 09/30/2016 Elevation: Speed: SPD60M Direction: D1R60fvl Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) \Vind Direction t -4 4-8 8 -13 13 -19 19 -25 > 25 N 0 0 7 18 0 0 NNE 0 0 2 0 0 0 NE 0 I 3 3 0 0 ENE 0 3 4 0 0 ., E 0 5 2 0 0 li:SE 0 8 0 0 SE 0 10 0 0 0 SSE 0 0 4 0 0 *' s 0 [ 4 3 2 0 SSW 0 0 0 0 0 0 SW 0 0 2 2 0 0 WSW 0 0 5 5 5 0 w 0 0 5 3 l 0 WNW 0 4 2 4 I 0 NW 0 6 l I 0 0 NNW 0 5 13 10 0 0 Total 0 23 73 60 9 0 Calm Hours not Included above for : Total Pel'iocl Valid Hours for this Stability Class for: Total Period Total Hours for Period A2.3-1 Total 25 2 7 10 8 10 11 7 10 0 4 15 9 11 8 28 165 3 165 2208 Site: AEP Cook .Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2016 -09/30/2016 Elevation: Speed: Sl'D60M Direction: DIR60M Lapse: DT60M Stability Class B Della Tcmpcratmc Moderately Unstable Wind Speed (mph) Wind Direction l -4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 2 I 3 0 0 6 NNE I 0 2 0 0 0 3 NE 0 0 0 0 0 0 0 ENE 0 0 0 2 0 0 2 E 0 0 0 0 0 0 0 ESE 0 I 3 I 0 0 5 SE 0 0 2 0 0 0 2 SSE 0 I 2 1 0 0 4 s 0 0 2 9 I 0 12 SSW () 0 2 2 0 0 4 SW 0 0 6 4 0 0 10 WSW 0 I 9 I 0 12 w 0 0 2 3 1 7 WNW 0 I 0 I 0 0 2 NW 0 0 2 0 0 0 2 NNW 0 6 6 0 0 13 Total 7 39 33 3 84 Calm Hours not Included above for: Total Period 3 Valid Hours for this Stability Class for: Total Period 84 Total Hours for Period 2208 A2.3-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 07/01/2016 -09/30/20 l 6 li:levation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19 -25 > 25 Tohll N 0 I 10 5 0 0 16 NNE 0 0 0 0 0 0 0 NE I 2 3 I 0 0 7 ENE 0 2 0 0 0 0 2 E 0 I 3 0 0 0 4 ESE 0 2 3 0 0 0 5 SE 0 0 2 3 0 0 5 SSE 0 4 4 0 0 0 8 s 0 3 I 2 0 I 7 SSW 0 0 4 2 0 0 6 SW 0 I 9 3 0 0 13 WSW 0 0 3 3 l 0 7 w 0 0 2 3 l 0 6 WNW 0 4 2 2 0 0 8 NW 0 1 0 0 0 0 I NNW 0 2 8 3 0 0 13 Total 23 54 27 2 108 Calm Hours not Included above for : Total Period 3 Valid Hours for this Stability Class for: Total Period 108 Total Hou1*s for Period 2208 A2.3-3 L ___ _

Site: AEP Cook Joint Frequency Distribution Hours at Each \.Vind Speed and Direction Total Period Period of Record = 07/01/2016 -09/30/2016 Elevation: Speed: SPD60M Direction: DlR60tvl Lapse: DT60M Stability Class D Ddlu Temperature Neutral Wind Speed (mph) Wind Direction 1 -4 4-8 8 -13 13 -19 19-25 > 25 Tot:il N 2 11 36 7 0 0 56 NNE l 4 9 0 0 0 14 NE 5 26 14 0 0 46 ENE 2 24 2 0 0 29 E 0 4 22 1 0 0 27 ESE 0 6 10 0 0 0 16 SE 0 8 20 I 0 0 29 SSE I 9 29 6 0 () 45 s 0 5 44 10 2 0 61 SSW 0 6 26 17 0 50 SW 2 9 39 33 0 0 83 WSW 1 6 32 20 5 1 65 w 0 8 14 9 11 0 42 WNW 20 15 23 4 0 63 NW II 14 4 0 0 30 NNW 16 22 2 0 0 41 Total 12 130 382 149 23 697 Cahn Hours not Included above for : Total Period 3 Valid Hours for this Stability Class for: Total Period 697 Total Hour*s for Period 2208 A2.3-4 Site: AEP Cook Joint .Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2016 -09/30/2016 Elevation: Speed: Sl'D60i'vl Direction: DlR60iV[ Lapse: DT60M Stability Clnss E Delta Temperature Slightly Stable Wind Speed (mph) Wind Dircctiun 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 5 23 9 1 0 0 38 NNE 5 17 12 2 0 0 36 NE 4 14 28 6 0 0 52 ENE 6 8 19 0 () 34 E 5 7 20 2 0 0 34 ESE 4 9 14 1 0 0 28 SE 4 7 (5 3 0 0 29 SSE 3 13 1 [ 5 0 0 32 s 2 9 49 7 () 0 67 SSW 0 8 38 4 0 1 51 SW 3 14 9 4 0 0 30 WSW 1 22 19 1 0 1 44 w 3 9 4 3 0 0 19 WNW 6 20 3 [() 3 0 42 NW 3 19 3 3 2 0 30 NNW 3 19 7 0 0 30 Total 57 218 260 54 5 2 596 Calm Hours not Included above for: Total Period 3 Valid Hours for this Stability Class for: Total Period 596 Total Hours for Period 2208 A2.3-5 Site: AEP Cook Joint Frequency Distribution Hours at Each \.Vind Speed and Direction Total Period Period of Record = 07/01/2016 -09/30/2016 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stal.Jility Class r, Della Temperature Moderately Stable Wind Speed (mph) 'tVind Direction 1 -4 4-8 8-13 13 -19 19-25 > 25 Total N 0 2 2 0 0 0 4 NNE I 6 5 0 0 0 12 NE 3 4 8 0 0 0 15 ENE I 3 17 0 0 0 21 E 0 0 19 I 0 0 20 ESE 0 4 13 2 0 0 19 SE 2 2 22 I 0 0 27 SSE 2 5 17 7 0 0 31 s 3 9 18 12 1 0 43 SSW 2 2 I I 2 0 0 17 SW 1 7 12 0 0 0 20 WSW 2 3 4 0 0 0 9 w 1 I 0 0 0 0 2 WNW 0 I 2 0 0 0 3 NW l 0 0 0 0 0 I NNW I 0 3 0 0 0 4 Total 20 49 153 25 0 248 Cairn Hours not lucludcd above for: Totnl Period 3 Valid Hours fo1* this Stability Class for: Total Period 248 Total Hours for Period 2208 A2.3-6 Site: AEI' Cook ,Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/0l/2016 -09/30/2016 Elevation: Speed: SPD601vl Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13-19 19 -25 > 25 Tot:il N .., IO .., () 0 () 16 .1 .1 NNE 0 4 6 0 () 0 10 NE 5 5 3 I 0 0 14 ENE 2 13 12 I 0 0 28 E 2 9 15 2 0 0 28 ESE 3 10 18 l 0 0 32 SE 0 8 25 2 0 0 35 SSE 0 [2 16 11 0 0 39 s I 7 16 7 0 0 31 SSW 2 4 8 I 0 0 [5 SW I 8 6 0 () 0 15 WSW 3 7 2 l 0 0 13 w ,., 3 0 0 0 0 6 .) WNW I 4 0 0 0 0 5 NW 0 J 2 0 0 0 5 NNW 0 7 I 0 0 0 8 Tot:il 26 114 133 27 0 0 300 Cairn Hours not lncludecl above for : Total Period 3 Valid Hours for this Stability Class for: Total Period 300 Total Hours for Period 2208 A2.3-7 L_

Site: t\EP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Sumnrnry of All Stability Classes Total Period Period of Record = 07/01/2016 -09/30/2016 Elevation: Speed: SPD60l'vl Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19 -25 > 25 Totnl N IO 49 68 34 0 0 161 NNE 8 31 36 2 0 0 77 NE 14 31 71 25 0 0 141 ENE 10 31 75 10 0 0 126 E 7 22 84 8 () 0 121 ESE 7 33 69 6 0 0 115 SE 6 26 96 10 0 0 138 SSE 6 44 82 34 0 0 166 s 6 34 134 50 6 231 SSW 4 20 89 28 I I 143 SW 7 39 83 46 0 0 175 WSW 7 39 74 31 12 2 165 w 7 21 27 21 14 l 91 WNW 8 54 24 40 8 0 134 NW 5 40 22 8 2 0 77 NNW 5 50 60 22 0 0 137 Total 117 564 1094 375 43 5 2198 Cahn Hours not Included nbove for: Total Pe,*iocl 3 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Pedocl 7 Valid Hours for this Stability Class for: Total Period 2198 Total Hours for Period 2208 A2.3-8 Site: AEP Cook .Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record "" I 0/01/2016 -12/3 1 /20 16 Elevation: Speed: SPIOM Direction: DIR I OM Lapse: DT60M Stability Class A Dcltll Temperature Extremely Unstable Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19 -25 > 25 Total N 7 29 2 0 0 0 38 NNE I 9 2 0 0 0 12 NE 2 2 0 0 0 0 4 ENE 1 0 0 0 0 0 1 E 0 I 0 0 0 0 ESE 6 0 0 0 0 7 SE 2 7 I 0 0 0 10 SSE 0 20 4 0 0 0 24 s I 19 7 0 0 0 27 SSW 0 5 6 0 0 0 11 SW 0 8 12 I 0 0 21 WSW 1 13 9 0 0 0 23 w 2 11 6 0 0 0 19 WNW 0 13 I 0 0 0 14 NW 3 7 0 0 0 0 10 NNW 3 12 0 0 0 0 15 Total 24 162 50 0 0 237 Cahn Hours not Included above for: Total Period 4 Valid Hours for this Stability Class for: Total Period 237 Total Hours for Period 2208 A2.4-1 L Site: AEP Cook ,Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = I 0/01/2016 -12/31/2016 Elevation: Speed: SPlOM Uirection: D1R10M Lapse: DT60iV! Stability Class B Delta Ternpernlure Moderately Unstable Wind S1Jccd (mph) Wind Direction I -4 4-8 8 -13 13 -19 19 -25 > 25 Total N 2 7 3 0 0 0 12 NNE I 3 0 0 0 0 4 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 3 0 0 0 0 0 3 ESE 3 l 0 0 0 0 4 SE 0 4 I 0 0 0 5 SSE l 9 I 0 0 0 11 s 2 12 5 0 0 0 19 SSW 3 6 6 I 0 0 16 SW 0 11 5 1 0 0 17 WSW I 6 5 0 0 0 12 w 6 17 0 0 0 24 WNW 11 4 0 () 0 16 NW 3 12 3 0 0 0 18 NNW 7 0 0 0 0 8 Total 22 95 50 2 0 0 169 Calm Hours not Included above for: Total Period 4 Valicl Hours for this Stability Class for: Total Period 169 Total Hours for Period 2208 A2.4-2 Site: AEP Cook Joint Frequency Distribution I lours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2016 -12/31/2016 Elevation: Speed: SP I Oivl Direction: DIRIOM Lapse: DT6otvl Stability Class C Della Temperature Slightly Unstable Wind Speed (mph) Wind Direction LJ 4-8 8 -13 13 -19 19 -25 > 25 Total N l 9 3 0 0 0 13 NNE 3 2 0 0 0 0 5 NE 0 0 0 0 0 I ENE I 0 0 0 0 2 E 2 0 0 0 0 0 2 ESE 2 8 2 0 0 0 12 SE 2 15 3 0 0 0 20 SSE 3 17 4 0 0 0 24 s ... 13 7 0 0 0 23 J SSW 12 10 0 0 0 23 SW 3 4 0 0 0 8 WSW 7 20 2 0 0 30 w 3 15 30 2 0 0 50 WNW 3 21 12 I 0 0 37 NW 3 15 14 3 0 0 35 NNW 3 7 5 0 0 0 15 Total 33 145 114 8 0 0 300 Calm Hours not Included nbove for: Total Period 4 Valid Hours for this Stability Class for: Total Period 300 Total Hours for Period 2208 A2.4-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = I 0/01/2016 -12/3 I /20 16 1!:lev:1tion: Speed: SPIOM Direction: DIR I OM Lnpse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction J -4 4-8 8-13 13-19 19-25 > 25 Total N 13 59 11 0 0 0 83 NNE 25 30 1 0 0 0 56 NE 12 5 0 0 () 0 17 ENE 5 2 0 0 0 0 7 E 17 3 0 0 0 0 20 ESE 22 19 2 0 0 0 43 SE 14 39 7 0 () 0 60 SSE 18 37 20 0 0 76 s 13 48 33 0 0 0 94 SSW 5 39 50 16 0 0 110 SW 0 26 39 0 () 0 65 WSW 6 27 19 2 0 0 54 w 8 25 18 I 0 0 52 WNW 6 50 12 1 0 0 69 NW 10 41 21 0 0 0 72 NNW 1 I 27 10 0 0 0 48 Total 185 477 243 21 0 0 926 Calm Hours not Included :1bove for: Total Period 4 Valid Hours for this Stability Class for: Total Period 926 Total Hours for Period 2208 A2.4-4 Site: Ar.P Cook .Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record== I 0/01/2016 -12/31/2016 Elevation: Speed: SPJOM Direction: DIRIOl'vl Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 9 2 0 0 0 () 11 NNE JO 1 0 0 0 0 11 NE 20 1 0 0 0 0 21 ENE 11 () 0 0 0 0 11 I?. 8 0 0 0 0 0 8 ESE 16 I 0 0 0 0 17 SE 21 8 0 () 0 0 29 SSE 37 15 4 0 0 0 56 s 21 47 6 () 0 0 74 SSW 9 19 3 0 0 0 31 SW 6 12 1 0 0 0 19 WSW 2 0 0 0 0 3 w 1 3 0 0 0 0 4 WNW 0 0 0 0 0 0 0 NW 2 0 0 0 0 0 2 NNW 3 4 0 0 0 0 7 Total 175 115 14 0 0 0 304 Cairn Hours not Included above for: Total Period 4 Valid Hours for this Stability Class for: Total Period 304 Total Hours for Period 2208 A2.4-5 Site: A El' Cook Joint Frequency Distribution Hours at Each \,\/ind Speed and Direction Total Period Period of Record= 10/01/2016 -12/31/2016 EleYation: Speed: SPIOM Direction: DIRIOM Lapse: DT60Ivl Stability Class f Delta Tcmpcralurc Moderately Stable \\'ind Speed (mph) Wind Direction 1 -4 4-8 8 -13 13 -19 19 -25 :> 25 Total N 0 0 0 () 0 0 0 NNE 2 0 0 () 0 0 2 NE 7 0 0 0 0 0 7 ENE 8 0 0 () () 0 8 E 20 0 0 0 0 0 20 ESE 23 0 0 0 0 0 23 SE 9 0 0 0 0 0 9 SSE 19 0 0 0 0 0 19 s 29 7 0 0 0 0 36 SSW 5 I 0 0 0 0 6 SW 2 0 0 0 0 0 2 WSW I 1 0 0 0 0 2 w 0 0 0 0 0 0 0 WNW 1 0 0 0 0 0 I NW 1 0 0 0 0 0 I NNW 0 0 0 0 0 0 0 Total 127 9 0 0 0 0 136 Calm Hours not Included above for : Total Period 4 Valid Hours for this Stability Class for: Total Period 136 Total Hours for Period 2208 A2.4-6

Site: AEP Cook ,Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2016 . 12/31/2016 Ele\*ation: Speed: SPIOM Direction: DIR I OM Lapse: DT601vl Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13

19 19

25 > 25 Total N I 0 0 0 0 0 NNE 4 0 0 () 0 0 4 NE 2 0 0 0 0 0 2 ENE 6 0 0 0 0 0 6 E 6 0 0 0 0 0 6 ESE 15 0 0 0 0 0 15 SE 23 0 0 0 0 0 23 SSE 28 0 0 0 0 0 28 s 27 I 0 0 0 0 28 SSW 8 3 0 0 0 0 I I SW 4 0 0 0 0 0 4 WSW 3 0 0 0 0 0 ... .) w 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW J 0 0 0 0 0 1 Total 128 4 0 0 0 0 132 Calm Hours not Included above for: Total Period 4 Valid Hours for this Stability Class for: Total Period 132 Total Hours for Period 2208 A2.4-7 Site: AEf' Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record"" 10/01/2016 -12/3 I /20 I 6 Elevation: Speed: SPI Ol'vl Direction: DJRIOM Larse: DT60M Della Temperature Wind Speed (mph) \*Vind Direction J -4 4-8 8 -13 13-19 19 -25 > 25 Total N 33 106 19 0 0 0 158 NNE 46 45 -, 0 () 0 94 .) NE 44 8 0 0 0 0 52 ENE 32 3 0 0 0 0 35 E 56 4 0 0 0 0 60 ESE 82 35 4 0 0 0 121 SE 71 73 12 0 0 0 156 SSE 106 98 -,-, I 0 0 238 .).) s 96 147 58 0 0 0 301 SSW 31 85 75 17 0 0 208 SW 13 60 61 2 0 0 136 WSW 14 56 53 4 0 0 127 w 15 60 71 3 0 0 149 WNW 11 95 29 2 0 0 137 NW 22 75 38 3 0 0 138 NNW 22 57 15 0 0 0 94 Total 694 1007 471 32 0 0 2204 Calm Hours not Included above for: Total Period 4 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 0 Valid Hours for this Stability Class for: Total Period 2204 Total Hours for Period 2208 A2.4-8 OFF-SITE DOSE CALCULATION MANUAL CHANGES The Off-Site Dose Calculation Manual, PMP-601O-OSD-001, was not revised during this 2016 reporting period. A3.0-1 ENCLOSURE 3 to AEP-NRC-2018-35 DONALD C. COOK NUCLEAR PLANT UNITS 1 AND 2 2015 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT, Revision 1 I J TABLE OF CONTENTS Page Table of Contents 1 I. II. III. IV. V. VI. VII. VIII. IX. Introduction 1 Radioactive Releases and Radiological Impact on Man 1 Liquid Releases 2 Gaseous Releases 2 Solid Waste Disposition 2 Meteorological 3 Offsite Dose Calculation Manual (ODCM) Changes 3 Total Dose 3 Radiation Monitors Inoperable Greater Than 30 Days 4 Noteworthy Conditions Identified in 2015 4 Conclusion 5 Errata 5 LIST OF APPENDICES Title Appendix Al.l 2015 Effluent and Waste Disposal Annual Report -Supplemental Information Al.2 Summaiy of Maximum Individual Doses: First Quarter, Second Quarter, Third Quarter, and Fourth Quarter 2015 Al.3 2015 Groundwater Protection Initiative (GPI) Sample Data A2.l Hours at Each Wind Speed and Direction: First Quarter, 2015 A2.2 Hours at Each Wind Speed and Direction: Second Quarter, 2015 A2.3 Hours at Each Wind Speed and Direction: Third Quarter, 2015 A2.4 Hours at Each Wind Speed and Direction: Fourth Quarter, 2015 A3.0 Offsite Dose Calculation Manual (ODCM) Changes 1 I. INTRODUCTION This report discusses the radioactive discharges from Unit 1 and Unit 2 of the Donald C. Cook Nuclear Plant (CNP) during 2015. This is in accordance with the requirements of CNP Technical Specification (TS) 5.6.3. The table below summarizes the pertinent statistics concerning the Plant's operation during the period from January 1, 2015, to December 31, 2015. The data in this table and the descriptive information on plant operation are based upon the respective unit's Monthly Operating Reports, Performance Indicators, and Control Room Logs for 2015. Parameter Unit 1 Unit2 Gross Electrical Energy Generation 8,079,912 8,971,844 (Megawatt Hour (MWH)) Unit Service Factor 83.9 90.7 (Percent (%)) Unit Capacity Factor 86.7 92.2 (Maximum Dependable Capacity (MDC)) Net(%) Unit 1 entered the reporting period in Mode 1 at Nominal Full Power (NFP). Small power adjustments were made to facilitate main turbine valve testing throughout the year. On June 1, 2015, the unit performed a normal downpower and was manually tripped to enter a forced maintenance outage. The unit attained criticality on July 29, 2015, and attained NFP on July 30, 2015. The unit exited the reporting period at NFP. Unit 2 entered the reporting period in Mode 1 at NFP. Small power adjustments were made to facilitate main turbine valve testing throughout the year. The unit performed a normal downpower and was manually tripped on March 25, 2015, entering refueling outage U2C22. The unit attained criticality on April 22, 2015, however the reactor* was manually tripped on April 23, 2015 to support additional maintenance. The unit attained criticality on April 27, 2015, and attained NFP on May 1, 2015. The unit commenced a normal planned downpower to 95% on November 6, 2015, to support online maintenance work. The unit returned to NFP on November 19, 2015. The unit exited the reporting period at NFP. II. RADIOACTIVE RELEASES AND RADIOLOGICAL IMP ACT ON MAN Since a number of release points are common to both units, the release data from both units are combined to form this two-unit, Annual Radioactive Effluent Release Report. Appendix Al.1 through A2.4 of this report present the information in accordance with Section 5.6.3 of Appendix A to the Facility Operating Licenses, as specified in the Technical Specifications, Regulatory Guide 1.21, and 10 CFR Part 50, Appendix I. The "MIDAS System" is a computer code that calculates doses due to radionuclides that were released from the CNP. 1 All liquid and gaseous releases were well within Offsite Dose Calculation Manual (ODCM) limits and federal limits. There were no abnormal liquid releases and no abnormal gaseous releases in 2015. The Independent Spent Fuel Storage Installation (ISFSI) impacts are included with Unit 1 and Unit 2 statistics. The ISFSI cask system does not create any radioactive materials or have any radioactive waste treatment systems. Therefore, specific operating procedures for the control of radioactive effluents are not required. Specification 3.1.1, Multi-Purpose Canister (MPC), provides assurance that there are not radioactive effluents from the ISFSI. Liquid Releases During 2015 there were 69 liquid batch releases performed. The number of liquid batch releases for the four quarters in 2015 was 20, 27, 15, and 7, respectively. Estimated doses (in mrem) to maximally exposed individuals via the liquid release pathways are given in Appendix Al.2 of this report. Gaseous Releases During the first quarter of 2015 there were four batch releases from Gas Decay Tanks (GDT), one containment purge, one system tank venting, and 80 Containment Pressure Reliefs (CPR). During the second quarter there was one containment purge and 84 CPR. During the third quarter there were four batch releases from GDTs and 95 CPR. During the fourth quarter there were two batch releases from GDTs and 127 CPR. The CPR continue to be listed as batch releases as described in Nuclear Regulatory Commission Inspections 50-315/89017 (DRSS); 50-316/89016 (DRSS) for CNP, dated June 13, 1989. Doses continue to be calculated utilizing continuous criteria as allowed by NUREG-0133. There were a total of 10 GDT releases, two containment purge, one system tank vent, and 386 CPR gaseous batch releases made during 2015. In calculating the dose consequences for continuous and batch gaseous releases during 2015, the meteorological data measured at the time of the release were used. The estimated doses (in mrem) to maximally exposed individuals via the gaseous release pathways are given in Appendix Al.2 of this report. For individuals that are within the site boundary, the occupancy time is sufficiently low to compensate for any increase in the atmospheric diffusion factor above that for the site boundary. Solid Waste Disposition There were 37 shipments of radioactive waste made during 2015. These included shipments made from the site to various radioactive waste processors for ultimate disposal. 2 III. METEOROLOGICAL IV. Appendices A2.l, A2.2, A2.3, and A2.4 of this report contain the cumulative joint frequency distribution tables of wind speed and wind direction, corresponding to the various atmospheric stability classes for the first, second, third, and fourth quarters of 2015. Hourly meteorological data is available for review and/or inspection upon request. OFFSITE DOSE CALCULATION MANUAL (ODCM) CHANGES The ODCM, PMP-6010-0SD-001, was revised during the report period. The new revision has been attached to this report. V. TOTAL DOSE Section 3.2.5 of the ODCM requires that the dose or dose commitment to a real individual from all uranium fuel cycle sources in Berrien County be limited to no more than 25 mrem to the total body or any organ (except the thyroid, which is limited to no more than 75 mrem) over a period of 12 consecutive months to show conformance with the requirements of 40 CFR Part 190. The maximum cumulative dose to an individual from liquid and gaseous effluents during 2015 was well within the ODCM limits. Measurements using thermoluminescent dosimeters (TLD) at 12 onsite stations indicate that the dose due to direct radiation is consistent with preoperational and current control (background) levels. This is fully evaluated in CNP's 2015 Annual Radiological Environmental Operating Report. Additional TLD dosimetry installed by Radiation Protection department programs monitor dose received by individuals on site as visitors. The annual dose to the maximum individual will be estimated by first, summing the quarterly total body air dose, the quarterly skin air dose, the quarterly critical organ dose from iodines and particulates (I&P), the quarterly total body dose from liquid effluents, the quarterly critical organ dose from liquid effluents, and the Radiological Environmental Monitoring Program onsite direct radiation TLD data. These quarterly values are summed with the annual Carbon-14 dose and compared to the annual total body limit for conservative reasons. The table that follows here represents the above written description: Dose (mrem) 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr I &P 1.62E-02 1.95E-02 4.61E-02 1.57E-02 Total Body Air 2.50E-04 2.20E-04 5.00E-04 3.10E-04 Skin 4.10E-04 3.50E-04 2.20E-03 5.10E-04 Liquid TB 1.69E-02 1.19E-02 1.27E-02 2.47E-03 Liquid OrQan 1.69E-02 1.20E-02 1.27E-02 2.48E-03 C14(Annual) 2.23E+OO Direct Radiation 0 0 0 0 Total 5.07E-02 4.40E-02 7.42E-02 2.25E+OO Grand Total Dose (Total Body or any other OrQan) mrem 2.42E+OO Annual Dose Limit (mrem) 25 Percent of limit 9.68E+OO 3 I _J The following data reflects a comparison with 2009 annual dose data (th<y last year without calculating C-14 dose), 2015 annual dose data, and 2015 annual dose data with C-14 added. This indicates that 2015 was a 'typical' single unit outage year with respect to radioactive effluents and allows for easier comparison. The table is presented as follows: Annual Dose (mrem) % of limit 2009 2.60E-01 1.04 2015 1.90E-01 0.76 2015 with C-14 2.42 9.68 VI. RADIATION MONITORS INOPERABLE GREATER THAN 30 DAYS There were no release pathways unmonitored for greater than 30 days. VIL NOTEWORTHY CONDITIONS IDENTIFIED IN 2015 There were no new noteworthy conditions identified in 2015. Carbon-14 Supplemental Information for the 2015 Annual Radioactive Effluent Release Report. C-14 has a 5730 year half-life and is a naturally occurring radionuclide produced by cosmic ray interactions in the atmosphere. C-14 is a relatively low energy beta emitter. Nuclear weapons testing in the 1950s and 1960s significantly increased the amount of C-14 in the atmosphere. C-14 is also produced in commercial nuclear reactors, but the amounts produced are much less than those produced naturally, from weapons testing, or coal burning power plants. The inventory of C-14 in Earth's biosphere is about 300 million Curies, of which most is in the oceans. Since the U.S. Nuclear Regulatory Commission (NRC) published Regulatory Guide (RG) 1.21, Revision 1, in 1974, the analytical methods for determining C-14 have improved. Coincidentally, the radioactive effluents from commercial nuclear power plants over the same period have decreased to the point that C-14 is likely to be a principal radionuclide in gaseous effluents. Based on these reasons and a desire to adjust policy to align with international standards, the nuclear industry was required to report, starting in 2010, the quantity and dose impact of C-14 here in the United States. The dose will be reported both with and without C-14 so a comparison to 2009 can be made, keeping in mind the differing standards. The quantity of C-14 released to the environment can be estimated by use of a C-14 source term scaling factor based on power generation (Ref. RG 1.21, Revision 2). A recent study recommends a source term scaling factor of approximately 9.0 to 9.8 Curies/GWe-yr for a Westinghouse Pressurized Water Reactor (Ref. EPRI 1021106, "Estimation of Carbon-14 in Nuclear Plant Gaseous Effluents", dated December 23, 2010). A scaling factor of 9.4 Curies/GWe-yr was assumed for this report. Using this source term scaling factor and actual electrical generation (in MWH) produced during 2015 results in a site total of 18.3 Curies produced. 4 C-14 releases from Pressurized Water Reactors (PWR) occur primarily as a mix of organic carbon (methane) and inorganic carbon (carbon dioxide). As a general rule, C-14 in the primary coolant is essentially all organic with a large fraction as gas. Any time the primary coolant is exposed to an oxidizing environment ( during shutdown or refueling), a slow transformation from an organic to an inorganic species occurs. Various studies documenting measured C-14 releases from PWRs suggest an average 80% organic :fraction with the remainder being carbon dioxide. 1bis equates to 2.56 Curies released as carbon dioxide which is available for the food pathway through photosynthesis to vegetation. Dose is calculated utilizing the methodology prescribed in RG 1.109, Appendix C, with the vegetation dose being the most predominant. A 'p' factor of0.33 is determined utilizing the time of batch gaseous releases performed during 2015, the time available for photosynthesis in plants, and the assumption that 70% of the C-14 released is from gaseous batch releases. A further reduction to the vegetation and leafy vegetable dose is warranted due to the limited growing season in Michigan, which was conservatively limited to nine months. The final results indicated a calculated organ dose from C-14 to a child at the site boundary of 1.76 mrem to the bone and a whole body dose of0.468 mrem, for a combined total C-14 dose of2.23 mrem. 1bis is less than the dose limit of 15 mrem/unit to any organ prescribed in 10 CPR 50, Appendix I, and the 40 CPR Part 190 limit of 25 mrem for total body and for any organ ( '.::;.75 mrem for thyroid). vm. CONCLUSION Based on the information presented in this report, it is concluded that CNP Units 1 and 2 performed their intended design function with no demonstrable adverse effect on the health and safety of the general public. IX. ERRATA Corrections were made on the 2014 Annual Radioactive Release Report, page Al.1-8, correcting an exponent typographic error. There were no changes in dose to the public. 1bis was documented in Action Request 2015-6149. The corrected page is attached to this report on the following page. Note: 1bis entire document is Revision 1 submitted as "Errata" attached to the 2017 Annual Radioactive Effluent Release Report per Corrective Action 2017-4835. 1bis new revision completely replaces the previously submitted report. 1bis errata was necessitated due to problems identified with equipment utilized for counting tritium samples dating back to 2013. The alterations made no impact to the overall public dose calculated of 2.42 millirems (9.68% of the 40 CPR190 allowable dose limits) but are included for accuracy. There were no adverse impacts to public health or safety. 5 2014 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES BATCH MODE I Nuclides Released I Unit I 1st Quarter I 2nd Quarter I 3rd Quarter I* 4_th Quarter I 11. FISSION GASES I H3 AR41 KR85 XE131M XE133M XE133 XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES I131 I133 I Ci I Ci !Total for Period I Ci 13. PARTICULATES I

BRBO I Ci 2.37E-02 3.SBE-01 3.lBE-01 5.87E-02 7.58E-01 2.95E-02 3.60E-01 7.53E-02 4.65E-01 5.45E-02 4.53E-Ol 9.81E-Ol 3.20E-02 1.SSE-01 2.45E-01 --------. I --------1. ;t?E-01 8. llE-07 l.61E+OO

I 1. 46E-03 2.56E-05 4.33E-01 --------1* --------------------------------------'---------------------*------I-------------------I

BR82 I Ci !Total for Period I Ci --------------------------------------------------------.---------------------* DENOTES SUPPLEMENTAL ISOTOPES Al.1-8 I J 2015 Effluent and Waste Disposal Annual Report SUPPLEMENTAL INFORMATION Facility: Donald C. Cook Nuclear Plant Licensee: Indiana Michigan Power Company 1 REGULATORY LIMITS 1.1 Noble Gases The air dose in unrestricted areas due to noble gases released in gaseous effluents shall be limited to the following: 1.1.1 During any calendar quarter, to~ 5 mrad/unit for gamma radiation and$ 10 mrad/unit for beta radiation. 1.1.2 During any calendar year, to~ 10 mrad/unit for gamma radiation and~ 20 mrad/unit for beta radiation. 1. 2 Iodines -Particulates The dose to a member of the public from radioiodines, radioactive materials in particulate form, and radionuclides other than noble_ gases with half-lives gr~ater than eight days in gaseous effluents released to unrestricted areas shall be limited to the following: 1.2.1 During any calendar quarter to~ 7.5 mrem/unit to any organ. 1.2.2 During any calendar year to~ 15 mrem/unit to any organ. 1. 3 Liquid Effluents The dose or dose commitment to an individual from radioactive material in liquid effluents released to unrestricted areas shall be limited: 1.3.1 During any calendar quarter to~ 1.5 mrem/unit to the total body and to~ 5 mrem/unit to any organ. 1.3.2 During any calendar year to~ 3 mrem/unit to the total body and to~ 10 mrem/unit to any organ. Al.1-1 2015 Effluent and Waste Disposal Annual Report 1.4 Total Dose The dose or dose commitment to a real individual from all uranium fuel cycle sources is limited to s 25 mrem to the total body or any organ (except the thyroid, which is limited to s 75 rnrem) over a period of 12 consecutive months. 2 MAXIMUM PERMISSIBLE CONCENTRATIONS 2.1 Gaseous Effluents The dose rate due to radioactive materials released in gaseous effluents from the site shall be limited to the following: 2.1.1 For noble gases: s 500 mrem/yr to the total body and s 3000 mrem/yr to the skin. 2.1~2 For all radioiodines and for all radioactive materials in particulate form and radionuclides (other than noble gases) with half-lives greater than eight days: s 1500 mrem/yr to any organ. The above limits are provided to insure that radioactive material discharged in gaseous effluents will not result in the exposure of an individual in an unrestricted area to annual average concentrations exceeding the limits in 10 CFR Part 20, Appendix B, Table 2, Column 1. 2.2 Liquid Effluents The concentration of radioactive material ~eleased at any time from the site to unrestricted areas shall be limited to 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 2 x 10-4 µCi/ml total activity. Al.1-2 2015 Effluent and Waste Disposal Annual Report 3 AVERAGE ENERGY The average energy (E) of the radionuclide mixture in releases of fission and activation gases as defined in Regulatory Guide 1.21, Appendix B, Section A.3 is not applicable because the limits used for gaseous releases are based on calculated dose to members of the public. Release rates are calculated using an isotopic mix from actual samples rather than average energy. 4 MEASUREMENTS and APPROXIMATIONS of TOTAL RADIOACTIVITY 4. 1 Fission and Activation Gases Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. 4 .2 Iodines Sampled on iodine adsorbing media, and analyzed on an 8192 channel analyzer and HpGe detector. 4. 3 Particulates Sampled on a glass filter and analyzed on an 8192 channel analyzer and HpGe detector. Sr-89 and Sr-90 analyses are performed by offsite vendor. 4. 4 Liquid Effluents Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. Fe-55, Sr-89 and Sr-90 analyses are performed by an offsite vendor. Ni-63 is also currently being analyzed by the offsite vendor in response to evaluation of the 10 CFR 61 sample results. Al.1-3 2015 Effluent and Waste Disposal Annual Report 5 BATCH RELEASES 5.1 Liquid 5 .1.1 Number of batch releases: 20 releases in the 1st quarter, 2015 27 releases in the 2nd quarter, 2015 15 releases in the 3rd quarter, 2015 7 releases in the 4th quarter, 2015 5.1.2 Total time period for batch releases: 50,145 minutes 5.1.3 Maximum time for a batch release: 1,638 minutes 5.1.4 Average time period for batch release: 727 minutes 5.1.5 Minimum time pe~iod for a batch release: 160 minutes 5.1.6 Average stream flow during periods of release of effluent into a flowing stream: 6.85E+5 gpm circulating water Al.1-4 2015 Effluent and Waste Disposal Annual Report 5 .2 Gaseous 5.2.1 Number of batch releases: 86 releases in the 1st quarter, 2015 85 releases in the znd quarter, 2015 99 releases in the 3rd quarter, 2015 129 releases in the 4th quarter, 2015 5.2.2 Total time period for batch releases: 7,560 minutes 5.2.3 Maximum time for a batch release: 354 minutes 5.2.4 Average time period for batch release: 19 minutes 5.2.5 Minimum time period for a batch release: 5 minutes Al.1-5 2015 Effluent and Waste Disposal Annual Report 6 ABNORMAL RELEASES 6.1 Liquid 6.1.1 Number of Releases: 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.1.2 Total activity released (Ci) : 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.2 Gaseous 6.2.1 Number of Releases: l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.2.2 Total activity released {Ci): l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 Al.1-6 2015 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! 11. FISSION GASES I H3 XE135m KR85 XE131m XE133m XE133 XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES I131 I132 I133 I Ci I Ci I Ci !Total for Period I Ci 13. PARTICULATES MN54 C060 CS137 I Ci I Ci I Ci !Total for Period I Ci 3.13E+Ol 3.13E+Ol

DENOTES SUPPLEMENTAL ISOTOPES 2.41E+Ol 2.41E+Ol 4.0SE-07 4.0SE-07 Al.1-7 2.30E+Ol 2.30E+Ol 2.63E-07 2.63E-07 2.46E+Ol 2.46E+Ol 1.83E-10 1.83E-10 2015 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES BATCH MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! 11. FISSION GASES I H3 AR41 KR85 XE131M XE133M XE133 XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES I131 I133 I Ci I Ci !Total for Period I Ci 13. PARTICULATES CS137 I

BR82 I Ci I Ci !Total for Period I Ci 5.00E-02 2.41E-01 4.86E-01 9.09E-03 7.86E-01 2.18E-09 5.02E-06 5.02E-06

DENOTES SUPPLEMENTAL ISOTOPES 6.57E-02 1. 92E-01 4.28E-02 2.62E-04 3.0lE-01 3.07E-06 3.07E-06 Al.1-8 6.56E-02 1. 21E-Ol 2.67E-01 1.40E-Ol 6.79E-04 5.94E-Ol 6.SOE-02 2.04E-01 1.16E-01 2.29E-01 3.80E-04 6.14E-01 2015 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES Units 1st 2nd 3rd 4th I Est. I Quarter I Quarter I Quarter I Quarter !Total I I I I I Error, % I IA. I FISSION AND I I !ACTIVATION GASES I 11. I Total Release I Ci I 7.37E-011 2.35E-011 5.29E-011 4.82E-Oll 11.5 12. !Average release I Irate for period luCi/secl 9.48E-021 2.99E-021 6.65E-021 6.06E-021 I I I I I I 13. I Percent of 1% Garnmal 8.47E-031 7.15E-031 1.75E-021 1.02E-021 I I applicable limit* I Beta I 5.94E-031 1.34E-031 5.88E-021 2.34E-031 I B. I IODINES 11. ITotal I-131 I Ci I O.OOE+OOI 4.0BE-071 O.OOE+OOI O.OOE+OOI 23.4 12. !Average release I Irate for period luCi/secl O.OOE+OOI 5.19E-081 O.OOE+OOI O.OOE+OOI I I I I I I I 3. I Percent of I % I I applicable limit* I IC. I PARTICULATES 11. I Particulates withl Ci I lhalf lives>8 daysl I O.OOE+OOI 1.48E-071 O.OOE+OOI O.OOE+OOI I I I I I I 2.lBE-091 1.47E-121 O.OOE+OOI O.OOE+OOI I I I I I 12. !Average release I Irate for period luCi/secl 2.SOE-101 1.86E-131 O.OOE+OOI O.OOE+OOI I I I I I I I 3. I Percent of I % I I applicable limit* I I 4. I Gross alpha I I radioactivity ID. I TRITIUM I Ci I I 7.98E-101 5.31E-131 O.OOE+OOI O.OOE+OOI I I I I I 1<6.50E-071<8.82E-071<7.79E-071<6.43E-071 I I I I I 27.7 I I 11. I Total Release I Ci I 3.13E+Oll 2.42E+Oll 2.31E+Oll 2.47E+Oll 13.2 12. !Average release I Irate for period luCi/secl 4.02E+OOI 3.07E+OOI 2.91E+OOI 3.lOE+OOI I I I I I I 13. I Percent of I % I I applicable limit* I I 2.29E-021 1.75E-021 1.66E-021 1.77E-021 I I I I I

Applicable limits are expressed in terms of dose. See Appendices Al.2-1 through Al.2-4 Al.1-9 2015 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CS137 I Ci I Ci BATCH MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CR51 MN54 FE55 C058 C060 NI63 I *KR85 ZR95 NB95 M099 TC99m AGllOm SB124 SB125 CS134 CS137 I *XE135 I131 I *XE133 I *XE133m I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci 4.90E+02 1.95E-05 3.84E-05 6.43E-05 3.82E-04 1.94E-05 1. 30E-05 7.57E-07 9.BOE-07 2.19E-05

DENOTES SUPPLEMENTAL ISOTOPES 3.93E+02 1.09E-03 7.33E-05 3.lBE-05 6.67E-04 5.02E-06 2.lOE-06 1.24E-05 1.94E-06 4.91E+02 4.76E-05 3.74E-05 1.38E-06 1. 20E-05 I* --------1. 05E-05 2.09E-05 1.20E-06 1.41E-05 6.BlE-06 Al. 1-10 9.31E+Ol 2.89E-05 5.50E-05 3.19E-04 3.31E-06 9.66E-06 1.30E-06 3.25E-06 IA. I FISSION AND I !ACTIVATION I !PRODUCTS 11. I Total Release 12. !Average diluted I I concentration I lduring period 13. I Percent of 2015 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES BATCH MODE Units I Ci luCi/ml I I % 1st 2nd 3rd 4th I Est. I Quarter I Quarter I Quarter I Quarter !Total I I I I IError,%1 I 5.39E-041 1.93E-031 8.76E-051 4.17E-041 15.1 1.58E-lll 4.15E-111 2.16E-121 4.64E-lll I I I I I I I I I !applicable limit I I 9.61E-051 l.45E-041 4.0lE-051 2.SOE-041 I I I I I IB. I TRITIUM 11. I Total Release 12. !Average diluted I I concentration I lduring period 13. I Percent of I Ci luCi/ml I I % I 4.90E+021 3.93E+021 4.91E+021 9.31E+Oll 10.1 1.43E-051 8.44E-061 1.21E-051 l.04E-051 I I I I I I I I I !applicable limit I I 1.43E+OOI 8.44E-011 1.21E+OOI 1.04E+001 I I I I I IC. I DISSOLVED AND I !ENTRAINED GASES 11. !Total Release 12. !Average diluted I I concentration I lduring period 13. I Percent of I Ci luCi/ml I I % I 2.19E-051 1.41E-051 6.81E-061 3.25E-061 18.4 I 6.41E-131 3.03E-131 l.68E-131 3.62E-131 I I I I I I I I I !applicable limit I I 3.21E-071 1.52E-071 8.39E-081 1.81E-071 I I I I I ID. I GROSS ALPHA I !RADIOACTIVITY I ITOTAL RELEASE IE. I VOLUME OF WASTE I !RELEASED IF. !VOLUME OF I !DILUTION WATER I !USED DURING I !PERIOD Ci l<l.17E-041<1.58E-041<8.78E-051<4.10E-05J N/A I I I I I I I I I I I Liters! 1.22E+061 1.64E+06J 9.14E+051 4.26E+051 I I I I I I Liters I I I I 3.42E+10J I I I 4.66E+10J I I I Al.1-11 4.06E+101 I I I 8.98E+091 I I I 2.00 I I 3.48 IA. I FISSION AND I !ACTIVATION I !PRODUCTS 11. !Total Release 12. !Average diluted I I concentration I lduring period 13. I Percent of 2015 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES CONTINUOUS MODE Units I Ci luCi/ml I I % 1st 2nd 3rd 4th I Est. I Quarter I Quarter I Quarter I Quarter !Total I I I I IError,%1 I O.OOE+OOJ O.OOE+OOI O.OOE+OOI O.OOE+OOI N/A O.OOE+OOJ O.OOE+OOJ O.OOE+OOI O.OOE+OOJ I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOJ I I I I I IB. I TRITIUM 11. I Total Release 12. !Average diluted I I concentration I !during period 13. I Percent of I Ci JuCi/ml I I % I O.OOE+OOJ O.OOE+OOJ O.OOE+OOI O.OOE+OOJ N/A O.OOE+OOJ O.OOE+OOJ O.OOE+OOI O.OOE+OOJ I I I I I I I I I Japplicable limit I I O.OOE+OOI O.OOE+OOI O.OOE+OOJ O.OOE+OOI I I I I I JC. I DISSOLVED AND I !ENTRAINED GASES 11. I Total Release J2. !Average diluted I Jconcentration I lduring period J3. I Percent of I Ci JuCi/ml I I % I O.OOE+OOI O.OOE+OOJ O.OOE+OOJ O.OOE+OOI N/A O.OOE+OOJ O.OOE+OOJ O.OOE+OOJ O.OOE+OOI I I I I I I I I I !applicable limit I I O.OOE+OOJ O.OOE+OOJ 0.00E+OOJ O.OOE+OOI I I I I I JD. I GROSS ALPHA I !RADIOACTIVITY I JTOTAL RELEASE IE. I VOLUME OF WASTE I !RELEASED IF. JVOLUME OF I !DILUTION WATER I IUSED DURING I !PERIOD Ci 0.00E+OOI O.OOE+OOI O.OOE+OOl<l.35E-041 N/A I I I I I I I I I Liters! O.OOE+OOI O.OOE+OOJ 0.00E+OOI 0.00E+OOJ I I I I I I Liters I I I I O.OOE+OOI I I I O.OOE+OOI I I I Al.1-12 O.OOE+OOI I I I O.OOE+OOI I I I 2.00 I I 3.48

" 2015 Effluent and Waste Disposal Annual Report Solid Waste and Irradiated Fuel Shipments Solid Waste Shipped Offsite for Burial or Disposal ~' '"~e of Waste Unit Estimated amount Estimated Total Error,% a) Spent resins, filters, sludge, m3 2.44E+02 1.00E+OO evaporator bottoms, etc. Curies 3.73E+02 3.75E+OO b) Dry compressible waste, ms 5.34E+02 1.00E+OO contaminated equipment, etc. Curies 1.01E+OO 6.48E+OO ms c) Irradiated components, control Curies rods, etc. d) other (contaminated soil) ms Curies 2) Estimate of Principle Radionuclide Composition a) H-3 5% Co-58 11 % Sb-125 2% Cs-137 l 3 % Mn-54 2% Co-60 10% Cs-134 2.5% Fe-55 9% Ni-63 55% C-14 0.5% b) Ni-59 1% Co-58 3% Sb-125 5% Mn-54 2% Co-60 39% Zr/Nb-95 1 % Fe-55 35.5 % Ni-63 12 % Zn-65 1% C-14 0.5% 13) Solid Waste Disposition No. of Shipments Mode of Transportation Destination 34 Truck Oak RidQe, TN 2 Truck Erwin, TN 1 Truck KinQston, TN 4) Type of Containers used for Shipment: Containers used are excepted packages, Type A, Sea Land, metal boxes, drums, tankers, and hi h inte rit containers HICs . II 5) Solidification Agent: There were no solidifications performed during this report period. Al.1-13 I 2015 Effluent and Waste Disposal Annual Report Yearly Release Rates GASES Fission and Activation Gases Total Release l.98E+OO Curies Average Release Rate 6.30E-02 µCi/sec % of Applicable Limits

y2.17E-02 % f3 3 .06E-02 % Iodines Totall-131 Release 4.08E-07 Curies Average Release Rate 5.19E-08 µCi/sec % of Applicable Limit* 4.57E-Ol % Particulates Total Release 2. l 8E-09 Curies Average Release Rate l.40E-10 µCi/sec % of Applicable Limit* 7.98E-10 % LIQUIDS Fission and Activation Products Total Release 2.97E-03 Curies Average Diluted Concentration 2.65E-1 l µCi/ml % of Applicable Limits*. Total Body l.43E+OO % Organ 4.30E-01 %

Applicable limits are expressed in terms of the annual 10 CFR 50, Appendix I, dose limits. Al.1-14 Site Boundary and Nearest Residence Listing The following distances were used in the calculation of the maximum individual doses: Sector Direction Boundary (Meters) Nearest Residence (Meters) A N 651 659 B NNE 617 660 C NE 789 943 D ENE 1497 1747 E E 1274 1716 F ESE 972 1643 G SE 629 1640 H SSE 594 964 J s 594 997 1 K SSW 629 942 Al.1-15 Summary of Maximum Individual Doses First Quarter 2015 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDffi(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body l.69E-02 Child Receptor 1 l.13E+OO l.5E+O Liquid Liver 1.69E-02 Child Receptor 1 3.39E-01 5.0E+O Noble Gas Air Dose 4.23E-04 Any 651 (N) 8.47E-03 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 5.94E-04 Any 972 (ESE) 5.94E-03 l.OE+l (Beta-mrad) Age Iodines and Total Body 1.62E-02 Child 659 (N) 2.16E-01 7.5E+O Particulates Al.2-1 Summary of Maximum Individual Doses Second Quarter 2015 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body l.19E-02 Child Receptor 1 7.91E-01 l.5E+O Liquid Liver 1.20E-02 Child Receptor 1 2.39£-01 5.0E+O Noble Gas Air Dose 3.58E-04 Any 651 (N) 7.15£-03 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 1.34E-04 Any 651 (N) l.34E-03 l.OE+l (Beta-mrad) Age Iodines and Total Body 1.95E-02 Child 659 (N) 2.60E-01 7.5E+O Particulates Al.2-2 Summary of Maximum Individual Doses Third Quarter 2015 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 1.27E-02 Child Receptor 1 8.48E-01 1.5E+O Liquid Liver 1.27E-02 Child Receptor 1 2.55E-01 5.0E+O Noble Gas Air Dose 8.73E-04 Any 651 (N) 1.75E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 5.88E-03 Any 629 (SSW) 5.88E-02 l.OE+l (Beta-mrad) Age Iodines and Total Body 4.61E-02 Child 659 (N) 6.14E-01 7.5E+O Particulates Al.2-3 Summary of Maximum Individual Doses Fourth Quarter 2015 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 2.47E-03 Child Receptor 1 l.65E-01 l.5E+O Liquid Liver 2.48E-03 Child Receptor 1 4.96E-02 5.0E+O Noble Gas Air Dose 5.lOE-04 Any 651 (N) l.02E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 2.34E-04 Any 651 (N) 2.34E-03 l.OE+l (Beta-mrad) Age Iodines and Total Body 1.57E-02 Child 942 (SSW) 2.lOE-01 7.5E+O Particulates Al.2-4 2015 GPI Sample D_ata Samples analyzed for trit_ium. Vahws noted are in microcuries. per milliliter (uCi/mL) Lower Limit of Detection== LLD * ~;'.~~~;~;0~+t¥~ A~{i k::;:,,,o;:,"'"*'-**-""1 62/f5(26fJii',i' .. :,;:/\:* l 01/26/20 t~}S~! f:
.,;r' .. ;-,.~,,,,.-*,t* , *()5/29/i(fiif~

1~*0~~?:0~2g_i§i:; 05/31/20'1:s: : , r *0~124120 f5*~tl ,' ()_6/'l,5120 l? ... fi6&1:.Zt12015'~~ ** , .... , *.* '" .... V.d " ,;;,.-::t~H~1'.st:::,,c.'l;ci " ,:::-.c;:o.;c*, /,<,; ~::;?;!:f:::':'2~£!t:\;,;:J H1i~\Bi'tit'.;;~;;:;,;2.'t . 07/04/20is(::.," : *~I~ii1~~gt1* r_-091{4/2015':?~ ,_ --.,-~~.::.:,c:: .. r~n}g~;d~{~iJ (Note: Wells MW-22 through MW-27 are qiulti-port wells installed in the Fall of 2009, with tlrree sample points placed at different depths. S= Shallow M= Middle D= Deep.) (Note: A*" symbol following a sample resultdenotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-1 2015 OPI Sample Data Samples analyzed for tritiwn. Values noted. are in microc;uries per milliliter (uCi/mL)

Lower Limit of Detection= LLD * * * ,. ',. . ,,* .. ,, . . . ., (Note: Wells MW-22 through MW7 27 are multisport wells installed in the Fall of 2009, with three sample points plac~d at different depths. S= Sb,allow M= Middle D= Deep.) (Note: A"*" syml:>ol following a sa1nple result denotes a gamma count was perfonned. Any gamma results aboye LLD will l;Je addit.ionally flagge~ and documented in thean!!,lysis section.) Al.3-'2 2015 GPI Sample Data San1ples analyzed for tritium. Vaiues :tidted are in microcuries per milliliter (uCi/~) . . Lower Limit of,Detectfon = LLD . (Note: A.'*'*" symbol following a sample result denot.es a gamma count was performed. Any gamma results above (LD will be additionally flagged and documented in the analysis section.) Al.3-3 2015 GPI Sah1ple Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD * ~n~.,-,?Ji:i.(:':,:cIJ ""0,..---4',,,:v,:,"i"'" ,*:0111_<>12g*1:s.;:) i~ff J/i912c>Ts?J 1-> -* '-, ** ,,_,i.;1 P,***,,,._hl -Q2/:2_6/201}' . (04796).il(iJ: L _____ :;_ , _ 041i:112ors.:-.: :;:: _ * . ,,, ; -,_ -I '04/[5/20}51,,'; 04/!9/~Ql5 < : .04724/201 $.t-l oshq1~011:> : : f:,osh:1nois>~ , -** -. *""" *'-~., .. ,,,.. ,,,,.,,~, -*611%4120 if i, 06/26/20{5j:'. -06/2,9/20 l S : --** * :, 01 lcit?1.ots}:; ; -~-;..,"'"J' *-"'~*-~._:;

07/Q~/2Q)_~ ; ;-: _ _ __ ;/o~fd§(~OX~]~~f-::i}{i:_}j;,:c:'*;_)

07110/2015 *' -,' _ r 0,7 LH(?O_! ti;i' i ::t1,9;~;",); ;}?{.~?,!:?~}:-}: \J.r>-.-::\--,-: 0'9/i4/10J5-:-.::-; o;izi12:tfis:-* . (toio8,ioJ~i) rt~-:t*?':'::*:* _ -I 0(07 /20 I$ <.!-..LD r , 101iv20f$~~ '-'--'"*"'"'Y,,,,_.,_, __ ;.:; ll/20/20,ff' -_ ---~-12h5/2015}'.'; ! ... .'\ ,*.,>-',f "'~ ""*"'* '""* .:.,, ;;-< (Note: A"*" symbol following a sample result denotes a gamma count was perfonned. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-4 2015 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) .._,..,,,~\,,llUll = LLD ?'10/06/20f57F.¥ l,'.~'.<:"',~*:t* *-::"'* *-:*~)'.' .' .10107ams ,:; f:' 1 Oll 4/20,l'.;iltd ~'.{:!;i'JiffZ::'} aibs1,2ols\:'.* f :_{*;~:~~~~:{0{~~)~~-~~j , ,,,,,*,,u.*;*;*,*;~:..-,,, *. ,' c. (Note: A "*" symbol following a saniple result denotes a ga!hma count was perfonned. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit (Note: A "*" symbol following a -sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-5 2015 GPI Sample Data Analysis of the Sample Data The Groundwater Protection Initiative (GPI) Sample Data for 2015 indicates no groundwater contamination in excess of the reporting threshold of2.00E-5 uCi/mL for tritium. Gamma spectroscopy was performed on all Radiological Environmental Monitoring Program wells quarterly. Those results are not actual GPI results so are not included in the ARERR, but are part ofCNP's 2015 Annual Radiological Environmental Operating Report. There were no positively identified radionuclides from plant effluents detected in any of the GPI well samples. The LLD value used for tritium counting of the samples varied between 9.42E-7 and 9.6.3E-7uCi/mL, depending on which scintillation counter was used. This is well below the required maximum LLD value of2.00E-6 uCi/mL per theODCM. While no valid unsuspected tritium values were found above LLD for 2015, values found above the LLD are not abnormal, unexpected, or inconsistent with past sampling history. The samples observed above LLD historically were expected results from the release oftritiated water into the Absorption Pond, a licensed pathway and part of plant design, or the result of recapture deposition of tritium from licensed radioactive gaseous r~lease points. The 2015 results were expected considering the reduction in tritium released to the Absorption Pond and typical rainfall experienced. Wells located inside the Protected Area of the plant are subject to recapture deposition of tritium and may show occasional sample results above LLD values following rainfalls and snow melt. The results observed in 2015 continue to reflect normal expectations and behaviors as they relate to recaptured tritium for the weather conditions observed in 2015. Two additional wells were installed in 2015, MW-28 and MW-29. These wells are shallow wells placed in close proximity to each Unit's Refueling Water Storage Tanks to improve leak detection capabilities. These wells are also closer to the Containment structures and plant ventilation stacks to better monitor tritium inside the Protected Area. . , The sample data indicates that no radioactive spills or unidentified leaks have occurred in 2015 impacting groundwater. The sample results indicate proper well placement to ensure the protection of the groundwater and early identification of any abnormal conditions involving groundwater. This is validated by the demonstrated ability to monitor percolation from the Absorption Pond and recaptured tritium in precipitation, with flow direction and behavior acting as described in the plant licensing documents. Al.3-6

! Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed ;lnd Direction Total Period Period of Record = 01/01/2015 -03/31/2015 Elevation: Speed: SP060M Direction: D1R60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19 -25 > 25 Total N -1 3 14 21 3 0 42 NNE 0 9 1 2 0 13 NE I 2 3 1 0 0 7 ENE 0 6 9 2 0 0 17 E 0 JO 12 0 0 0 22 ESE 0 11 6 2 0 0 19 SE 0 9 3 6 0 0 18 SSE 0 14 14 .9 0 38 s 1 9 7 14 3 I 35 SSW 0 2 2 3 0 0 7 SW 1 6 13 15 I 0 36 WSW 0 7 20 10 11 I 49 w 0 16 15 11 2 0 44 WNW 0 10 12 5 3 0 30 NW 0 8 17 24 3 I 53 NNW I 6 14 15 3 0 39 Total 5 120 170 139 32 3 469 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 469 Total Hours for Period 2160 A2.1-1 L_

, Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2015 -03/31/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 2 4 6 2 0 14 NNE 0 2 11 4 0 0 17 NE I 0 IO 5 0 0 16 ENE 0 I I 2 5 0 9 E 0 2 6 0 0 0 8 ESE 0 5 3 2 0 0 10 SE 0 0 I 0 0 0 1 SSE 4 6 2 0 0 13 s I 4 8 I 2 0 16 SSW 0 3 5 5 I 0 14 SW 2 3 13 5 0 0 23 WSW 0 ,., I 5 2 0 11 .) w 0 0 1 6 5 0 12 WNW 0 2 2 3 8 4 19 NW 2 0 2 4 3 2 13 NNW 0 5 5 4 5 2 21 Total 7 36 79 54 33 8 217 Calm llours not Included above for : Total Period* 0 Valid Hours for this Stability Class for: Total Period 217 Total Hours for Period 2160 A:2..1-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2015. -03/31/2015 Elevation: Speed: SPD60M Direction: DlR60M Lapse: DT60M Stability Class C Delta Temp~rature

Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19 -25 > 25 Total N 0 2 9 8 11 4 34 NNE 0 2 10 9 3 0 24 NE 0 3 12 3 0 0 18 ENE 0 4 9 2 2 1 18 E I 5 12 4 1 0 23 ESE 0 8 9 0 0 0 17 SE 0 6 3 3 0 0 12 SSE I 7 9 5 2 0 24 s 0 2 12 7 2 0 23 SSW 1 6 11 5 4 0 27 SW 0 2 10 11 1 2 26 WSW 0 I 3 7 8 6 25 w 0 0 2 13 12 2 29 WNW 0 I 2 8 18 2 31 NW 0 2 2 8 13 9 34 NNW 0 4 11 16 9 11 51 Total 3 55 126 109 86 37 416 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 416 Total Hours for Period 2160 A2.1-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2015 -03/31/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class. D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19 -25 > 25 Total N 3 4 9 7 4 0 27 NNE 0 6 7 5 0 0 18 NE 0 7 10 3 0 0 20 ENE 2 10 10 3 0 0 25 E 2 9 12 0 0 24 ESE I II 7 " J 0 23 :) SE I 13 10 16 4 0 44 SSE 4 " 9 JO 5 0 31 :) s 0 4 26 7 6 1 44 SSW 0 8 41 22 7 0 78 SW 0 5 21 31 9 I 67 WSW 1 4 11 39 9 I 65 w 0 8 10 20 9 48 WNW I 5 8 17 11 2 44 NW I 2 19 22 15 7 66 NNW 0 6 2 14 8 10 40 Total 16 105 212 220 88 23 664 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 664 Total Hours for Period 2160 A2.1-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 01/01/2015 -03/31/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 0 0 l 0 0 1 NNE l 4 0 0 0 0 5 NE 3 6 7 0 0 0 16 ENE 0 5 3 l 0 0 9 E 0 2 10 5 0 0 17 ESE 0 3 5 3 0 0 II SE I 6 7 9 0 0 23 SSE I 3 7 4 0 0 15 s 0 2 16 13 0 0 31 SSW 0 5 18 11 0 0 34 SW 0 16 4 l 0 22 WSW 2 I 11 6 3 0 23 w I 2 5 7 2 0 17 WNW 0 3 2 4 3 0 12 NW 2 2 5 5 0 0 14 NNW 0 I 2 2 0 0 5 Total 11 46 114 75 9 0 255 Calm Hours not Included above for: Total period Q Valid Hours for this Stability Class for: Total Period 255 Total Hours for Period 2160 A2.1-5 Site: AEPCook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 01/01/2015 -03/31/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 1 1 0 0 0 2 NNE 0 2 I 0 0 0 3 NE 0 I 0 0 0 0 ENE 0 I 4 0 0 0 5 E I .] 3 1 0 0 6 ESE 0 I 5 2 0 0 8 SE 1 3 1 0 0 0 5 SSE 0 2 7 3 0 0 12 s 0 2 6 5 0 0 13 SSW 0 2 4 2 0 0 8 SW 0 9 2 0 0 12 WSW I 2 0 0 0 4 w 0 3 I I 0 0 5 WNW 0 I 0 0 0 2 NW 0 .0 0 0 0 NNW 0 0 0 0 0 Total " 24 45 16 o. 0 88 ., Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 88 .Total Hours for Period 2160 A2.1-6 I Site: AEP Cook JoiQt Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2015 -03/31/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1 -4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 I 0 0 0 0 I NNE 0 0 0 0 0 0 0 NE 0 3 0 0 0 4 ENE 0 2 3 0 0 0 5 E 0 1 3 2 0 0 6 ESE 0 0 2 0 0 0 2 SE 0 I 2 0 0 0 3 SSE 0 0 2 0 0 0 2 s 0 0 5 2 0 0 7 SSW 0 0 6 1 0 0 7 SW 0 0 3 0 0 0 3 WSW 0 0 0 0 0 0 *O w 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Total 0 6 29 5 0 0 40 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 40 Total Hours for Period 2160 A2.1-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 01/01/2015 -03/3 1/2015 Elevation: Speed: SPD60M Dir~ction: D1R60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1 -4 4-8 8-13 13 -19 19 -25 > 25 Total N 4 13 37 43 20 4 121 NNE 1 17 38 19 5 0 80 NE 5 20 45 12 0 0 82 ENE 2 29 39 10 7 l 88 E 4 30 58 13 l 0 106 ESE 39 37 12 1 0 90 SE 3 38 27 34 4 0 106 SSE 7 ..,.., 54 33 8 0 135 .}.} s 2 ?" _.:, 80 49 13 2 169 SSW 26 87 49 12 0 175 SW 3 18 85 68 12 3 189 WSW 4 17 48 67 33 .8 177 w 29 34 58 30 .., 155 .} WNW 22 27 37 43 8 138 NW 5 15 45 63 34 19 181 NNW 23 34 51 25 23 157 Total 45 392 775 618 248 71 2149 Calm Hours not Included above for : Total Period 0 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 11 Valid Hours for this Stability Class for: Total Period 2149 Total Hours for Period 2160 A2..1-8 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2015 -06/30/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction . 1 -4 4-8 8 -13 13-19 19 -25 > 25 Total N 0 15 33 25 I 0 74 NNE 0 3 I 3 0 0 7 NE 0 3 2 4 0 0 9 ENE 0 3 7 I 0 0 I 1 E 0 4 6 8 0 0 18 ESE 0 5 6 8 I 0 20 SE 0 5 12 4 0 0 21 SSE 0 6 13 10 f-0 31 s 0 3 15 9 I 0 28 SSW 0 4 3 1 0 0 8 SW 0 3 5 9 l 0 18 WSW I 4 30 25 9 I 70 w 0 19 26 12 4 0 61 WNW 0 15 17 13 1 0 46 NW 0 15 15 8 I 0 39 NNW 0 23 49 26 0 0 98 Total 130 240 166 21 559 Calm Hours not Included above for : Total Period 0 Valid Hours for thi~ Stability Class for: Total Period 559 Total Hours for Period 2184 A2.2-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2015 -06/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 3 7 7 0 0 17 NNE 0 I 0 0 0 0 I NE I 2 I 0 0 0 4 ENE 0 2 I 2 0 0 5 E 0 I 6 4 1 0 12 ESE 0 0 0 3 0 0 3 SE 0 4 5 1 0 0 10 SSE I 5 7 0 0 0 13 s 0 2 5 5 0 0 12 SSW 0 0 4 3 1 0 8 SW 0 3 7 5 0 0 15 WSW 6 4 3 3 I 18 w 0 4 3 2 2 0 11 WNW 0 11 2 0 0 0 13 NW 1 4 3 1 0 0 9 NNW I 3 1 0 0 6 Total 5 49 58 37 7 157 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 157 Total Hours for Period 2184 A2.2-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2015 -06/30/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 4 10 7 0 0 21 NNE 2 3 0 3 0 0 8 NE 0 0 I 0 0 0 I ENE 0 0 4 5 0 0 9 E 0 2 6 7 2 0 17 ESE 0 0 I 8 3 0 12 SE 0 2 5 I 0 0 8 SSE I I 1 0 0 0 3 s 2 2 0 4 I 0 9 SSW 1 7 5 5 2 0 20 SW 1 I 2 3 2 1 10 WSW 0 2 0 4 2 9 w I 4 2 3 0 11 WNW 5 5 5 1 0 17 NW I 3 1 3 2 0 10 NNW 0 6 2 0 0 9 Total 14 42 44 51 20 3 174 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 174 Total Hours for Period 2184 A2..2-3

S.ite: AEP Cook Joint Frequency Distribution 1-:lours at Each Wind Speed and Direction Total Period Period of Record= 04/01/2015 -06/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction I -4 4-8 8-13 13 -19 19 -25 > 25 Total N 12 19 12 0 0 44 NNE 3 4 I 1 3 1 0 22 NE 3 2 7 16 0 0 28 ENE 3 5 10 4 1 0 23 E I 8 25 15 3 0 52 ESE I 10 18 18 4 0 51 SE 0 8 8 12 0 0 28 SSE 2 3 12 9 1 0 27 s 4 5 17 26 4 0 56 SSW 2 5 15 22 5 1 50 SW 2 6 21 37 9 0 75 WSW 1 7 14 26 9 4 61 w I 3 6 12 6 2 30 WNW 3 3 9 IO 4 0 29 NW 2 7 9 8 0 0 26 NNW ]' 8 12 4 0 0 25 Total 30 96 213 234 47 7 627 Calm Hours not Included above for : Total Pe.riod 0 Valid Hours for this Stability Class for: Total Period 627 Total Hours for Period 2184 I A2.2-4 Site: AEP Cook Joint Frequency Distribution Hours at E;ach Wind Speed and Direction Total Period Period of Record = 04/01/2015 -06130/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperatµre Slightly Stable Wind Speed (mph) Wind Direction 1 -4 4-8 8 -13 13 -19 19-25 > 25 Total N 2 I 11 0 0 0 14 NNE 0 10 9 I 0 0 20 NE I 5 14 I 0 0 21 ENE 0 4 6 2 0 0 12 E 2 2 12 0 0 0 16 ESE 0 3 3 4 0 0 10 SE 0 5 28 4 0 0 37 SSE 0 2 14 9 0 0 25

s 0 4 13 42 0 0 .59 SSW 0 2 13 IO 0 0 25 SW 0 4 9 12 0 0 25 WSW I 3 11 4 0 0 19 w 0 2 3 2 0 0 -7 WNW 3 4 4 2 1 0 14 NW 0 5 8 0 2 o* 15 NNW 0 l 6 0 0 0 7 Total 9 57 164 93 3 0 326 Calm Hours not Includecl above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 326 Total Hours fo(Period 2184 A2.2-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2015 -06/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4-8 8~ 13 13 -19 19 -25 > 25 Total N I 0 2 0 0 0 3 NNE 0 4 1 0 0 0 5 NE I 6 7 0 0 0 14 ENE 0 8 7 2 0 0 17 E 0 I 7 4 0 0 12 ESE ~* 3 5 2 0 0 13 ., SE 0 4 10 2. 0 0 16 SSE 1 4 4 6 0 0 15 s 0 1 16 9 0 0 26 SSW 0 1 8 7 0 0 16 SW 0 0 9 I 0 0 10 WSW I 4 4 0 0 0 9 w 1 3 0 0 0 0 4 WNW 0 2 1 0 0 0 3 NW 0 2 0 0 1 0 3 NNW 0 6 3 0 0 0 9 Total 8 49 84 33 0 175 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 175 Total Hours for Period 2184 A2.2-6 Site: AEPCook Joint Frequency Distributio_n Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2015 -06/30/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse:, DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 0 1 0 0 0 I NNE 0 3 I 0 0 0 4 NE 0 3 9 0 0 0 12 ENE 0 8 9 0 0 18 E 2 3 *7 3 0 0 15 ESE 0 J 3 I 0 0 5 -SE 0 6 8 2 0 0 16 SSE 0 3 JI 1 0 0 15 s 2. 5 9 8 0 0 24 SSW 0 I 3 4 0 0 8 SW 4 .., 5 0 0 0 12 .) WSW 5 3 0 0 0 9 w 0 0 I 0 0 0 I WNW 0 0 0 0 0 0 0 NW 0 I I 0 0 0 2 NNW 0 0 0 0 0 0 0 Total 9 42 71 20 0 0 142 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 142 Total Hours for Period 2184 A2.2-7 I I Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 04/01/2015 -06/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Delta-Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19 -25 > 25 Total N 4 35 83 51 l 0 174 NNE 5. 28 23 10 I 0 67 NE 6 21 41 21 0 0 89 ENE 3 30 44 17 I 0 95 E 5 21 69 41 6 0 142 ESE 4 22 36 44 8 0 I 14 SE 0 34 76 26 0 0 136 SSE 5 24 62 35 .., 0 129 .) s 8 22 75 103 6 0 214 SSW 3 20 51 52 8 I 135 SW 7 20 58 67 12 I 165 WSW 6 31 66 59 25 8 195 w 3 35 41 29 15 2 125 WNW I 1 40 38 26 7 0 122 NW 4 37 37 20 6 0 104 NNW 2 45 74 33 0 0 154 Total 76 465 874 634 99 12 2160 Calm Hours not Included above for : Total Period 0 Variable Direction Hours for: Total Period o* Invalid Hours for: Total Period 24 Valid Hours for this Stability Class for: Total Period 2160 Total Hours for Period 2184 1<2..2-8 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2015 -09/30/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19 -25 > 25 Total N 1 5 35 20 7 0 68 NNE 0 2 4 0 0 0 6 NE 0 1 4 3 0 *o 8 ENE 0 4 9 0 0 0 13 E 5 8 0 0 0 14 ESE I 9 11 0 0 0 21 SE 0 8 11 3 0 0 22 SSE 0 9 IO 4 0 0 23 s 0 3 10 14 0 0 27 SSW 0 4 4 IO 0 0 18 SW 0 3 11 11 0 26 WSW 0 16 35 6 3 0 60 w I 23 19 4* 2 0 49 WNW 0 34 20 3 0 0 57 NW 0 17 16 5 1 0 39 NNW 0 17 42 12 2 0 73 Total 4 1.60 249 95 16 0 524 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 524 Total Hours for Period 2208 A2.3-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2015 -09/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19 -25 > 25 Total N 0 2 6 1 1 0 10 NNE 0 0 0 0 1 0 1 NE 0 0 1 0 0 0 I ENE 0 0 0 0 0 0 0 E l 4 2 0 0 0 *7 ESE 0 3 3 0 0 0 6 SE 3 4 0 0 0 0 7 SSE 6 2 2 0 0 I J s 1 7 10 5 0 0 23 SSW 0 5 4 3 0 0 12 SW J 3 5 2 0 0 11 WSW 2 5 9 0 1 0 17 w 0 4 1 I 0 7 WNW 0 3 J 0 0 5 NW 0 2 4 2 0 0 8 NNW 4 0 0 0 6 Total 10 52 49 17 4 0 132 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 132 Total Hours for Period 2208 A2.3-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2015 -09/30/2015 Elevation: Speed: SPDGOM Direction: D1R60M Lapse: DTGOM Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction I -4 4-8 8-13 13 -19 19-25 > 25 Total N 0 1 5 5 I 0 12 NNE 0 0 0 3 0 0 3 NE 0 1 0 0 0 0 ENE 2 0 0 0 0 0 2 'E 0 0 2 0 0 0 2 .ESE I 3 1 0 0 0 5 SE 0 3 2 *1 0 0 6 SSE 2 3 2 0 0 0 7 s I 7 5 3 0 0 16 SSW 0 4 4 0 0 0 8 SW I 4 4 2 0 0 11 WSW 0 5 8 2 2 0 17 w 2 0 I 2 0 6 WNW 0 4 0 2 0 0 6 NW 0 1 ] 0 0 3 NNW 0 3 0 0 5 Total 9 39 36 20 6 0 110 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period I IO Total Hours for Period 2208 A2.3-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record =

07/01/2015 -09/30/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19 -25 > 25 Total N 0 15 27 8 2 0 52 NNE 0 5 10 11 1 0 27 NE 0 I. 11 2 0 0 14 ENE 1 4 4 0 0 0 9 E 0 6 3 I 0 0 10 ESE 0 2 13 0 0 0 15 SE 2 12 I 4 0 0 19 SSE I 7 18 5 I 0 32 s I 5 22 12 0 0 40 SSW I 5 24 8 *O 0 38 SW I 9 23 21 4 0 58 WSW I 0 11 9 0 0 21 w 2 4 1 12 1 0 20 WNW 0 7 4 8 0 0 19 NW I 6 5 9 5 0 26 NNW 3 13 14 '4 2 0 36 Total 14 IOI 191 114 16 0 436 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 436 Total Hours for Period 2208 A2.3-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2015 -09/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction I -4 4-8 8-13 13 -19 19 -25 > 25 Total N 4 13 15 5 0 0 37 NNE 0 4 12 2 0 0 18 NE 1 6 16 0 0 24 ENE 1 7 11 2 0 0 21 E 0 2 7 0 0 0 9 ESE 0 3 13 0 0 0 16 SE I 7 11 I 0 0 20 SSE 0 8 31 6 0 0 45 s 1 3 37 21 0 0 62 SSW 0 8 23 8 0 0 39 SW 1 3 14 4 I 0 23 WSW 0 12 6 0 0 19 w 0 0 3 3 0 0 6 WNW 3 2 9 11 0 0 25 NW 6 10 0 0 o* 17 NNW 3 7 12 0 0 0 22 Total 17 79 236 70 0 403 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 403 Total Hours for Period 2208 A2.3-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 07/01/2015 -09/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1 -4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 5 5 0 0 0 IO NNE 1 4 7 0 0 0 12 NE 0 6 5 0 0 0 11 ENE 2 11 0 0 0 14 E 1 3 12 4 0 0 20 ESE 0 2 17 0 0 0 19 SE 2 5 15 4 0 0 26 SSE 0 9 26 5 0 0 40 s I 4 19 21 0 0 45 SSW I 3 13 9 0 0 26 SW 0 2 15 I 0 0 18 WSW 0 I 4 0 0 0 5 w 0 0 0 0 0 0 0 WNW 0 2 1 0 0 0 3 NW I I 0 0 0 -, .) NNW 0 0 0 0 0 Total 8 50 151 44 0 0 253 Calm Hours not Included above for,; Total Period Q Valid Hours for this Stability Class for: Total Period 253 Total Hours for Period 2208 A2.3-6 Site: AEPCook Joint Frequency Distribution Hours at Each Wind Speed and Direction

Total Period Period of Record = 07/01/2015 -09/30/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19-25 > 25 Total N 4 3 2 0 0 0 9 NNE 0 0 2 0 0 0 2 NE 4 5 16 0 0 0 25 ENE 3 3 14 I 0 0 21 E 2 8 10 4 0 0 24 ESE 8 14 22 3 0 0 47 SE 2 I I 18 0 0 32 SSE 0 13 27 13 0 0 53 s 0 10 21 9 0 0 40 SSW JO 28 .., 0 0 42 .J SW 3 3 10 2 0 0 18 WSW 0 4 1 0 0 0 11 w 4 2 0 0 0 1 WNW 3 2 0 0 0 6 NW 3 2 I 0 0 0 6 NNW 2 2 I 0 0 0 5 Total 36 93 183 36 0 0 348 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 348 Total Hours for Period 2208 A2.3-7

Site: AEPCook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 07/01/2015 -09/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 9 44 95 39 11 0 198 NNE I 15 35 16 2 0 69 NE 5 20 53 6 0 0 84 ENE 8 20 49 3 0 0 80 E 5 28 44 9 0 0 86 ESE 10 36 80 3 0 0 129 SE 10 50 58 14 0 0 132 SSE 4 55 116 35 I 0 211 s 5 39 124 85 0 0 253 SSW 3 39 100 41 0 0 183 SW 7 27 82 43 6 0 165 WSW 4 31 86 23 6 0 150 w 6 35 27 21 6 0 95 WNW 6 53 37 25 0 0 121 NW 6 35 38 17 6 0 102 NNW 9 47 71 16 5 0 148 Total 98 574 1095 396 43 0 2206 Calm Hours not Included above for : Total Period 0 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 2 Valid Hours for this Stability Class for: Total Period 2206 Total Hours for Period 2208 A2.3-8 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2015 -12/31/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class A Delta.Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 4 15 6 2 0 27 NNE 0 2 2 I I 0 6 NE 0 3 2 3 0 0 8 ENE 0 4 3 11 3 0 21 E 0 2 5 0 0 0 7 ESE 0 I 2 0 0 4 SE 1 4 3 1 4 0 13 SSE 0 4 15 4 3 0 26 s 0 2 6 7 0 0 15 SSW 0 I 5 I 6 0 13 SW 0 3 7 17 0 0 27 WSW 0 0 17 18 3 3 41 w 0 7 11 6 7 I 32 WNW 0 7 8 5 0 0 20 NW 0 5 8 8 2 0 23 NNW 0 2 10 3 0 0 15 Total 51 118 93 31 4 298 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 298 Total Hours for Period 2208 A2.4-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2015 -12/31/2015 Elevation: Speed: SPDpOM Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 2 3 1 0 0 6 NNE 0 0 0 2 0 0 2 NE 0 0 1 0 0 0 I ENE 0 0 1 1 0 0 2 E 0 3 I 3 I 0 8 ESE 0 I 0 0 0 2 SE 0 0 0 1 0 2 SSE 0 3 2 2 I 0 8 s I 4 4 0 0 10 SSW 0 3 6 4 0 0 13 SW I 3 3 4 0 0 11 WSW 0 3 3 7 0 2 15 w 0 7 3 3 15 WNW 0 l 2 5 3 l 12 NW 0 0 1 0 0 0 1 NNW I 1 I I 0 0 4 Total 3 22 29 43 9 6 112 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 112 Total Hours for Period 2208 A2.4-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2015 -12/31/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 2 1 6 1 0 10 NNE 0 0 3 6 1 0 10 NE 0 2 10 2 0 0 14 ENE 0 3 5 I 0 10 E 0 I I 7. 0 10 ESE 0 0 4 3 0 8 SE 0 4 2 3 I I 1 SSE 0 3 3 3 0 0 9 s 0 5 7 2 4 0 18 SSW 0 3 16 6 3 0 28 SW 0 0 9 5 0 0 14 WSW 0 I .., 13 11 8 36 .) w I 0 6 22 10 7 46 WNW 0 0 4 4 5 2 15 NW 2 0 2 0 0 5 NNW 0 2 3 1 0 7 Total 3 24 72 84 50 18 251 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 251 Total Hours for Period 2208 A2.4-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2015 -12/31/2015 Elevation: Speed: SPD60M Direction: D!R60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction l-4 4-8 8 -13 13 -19 19 -25 > 25 Total N IO I I 8 0 0 30 NNE 5 11 5 0 0 22 NE I 5 14 16 0 0 36 ENE 0 10 17 17 4 0 48 E 5 IO 8 2 0 26 ESE 2 I 8 19 7 0 37 SE 0 I 18 34 12 0 65 SSE 0 7 24 28 15 14 88 s 0 5 33 69 26 3 . 136 SSW J 3 1-8 50 24 3 99 SW 0 2 12 62 10 6 92 WSW 2 2 9 23 22 21 79 w 0 2 7 17 9 17 52 WNW 0 3 6 23 IO 10 52 NW 2 3 9 27 19 61 NNW 2 4 5 10 6 28 Total 13 68 212 416 166 76 951 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 951 Total Hours for Period 2208 A2.4-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 10/01/2015 -12/31/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19 -25 > 25 Total N 0 2 4 2 0 0 8 NNE 0 7 8 0 0 0 15 NE* 0 0 12 .., 0 0 15 .) ENE 1 3 6 4 0 0 14 E 0 3 I l 0 0 15 ESE 0 3 9 4 0 0 16 SE I I 2 13 I 0 18 SSE 0 0 12

24 I 1 38 s 0 7 31 28 0 0 66 SSW 0 .., 15 30 I 0 49 .) SW 0 7 10 0 0 18 WSW 0 l 7 0 0 9 w 0 I 3 0 0 0 4 WNW 0 0 .., 2 0 0 5 .) NW I 3 5 14 I 0 24 NNW 0 4 1 0 0 6 Total 3 37 128 147 4 320 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 320 Total Hours for Period 2208 A2.4-5 \

~-------------Site: AEPCook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= J 0/01/2015 -12/31/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT6DM Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction I -4 4-8 8-13 13 -19 19 -25 > 25 Total N 0 1 0 0 0 0 1 NNE 0 0 I 0 0 0 1 NE 2 I 3 0 0 0 6 ENE 0 0 9 2 0 0 II E 0 2 2 2 0 0 6 ESE 0 l IO I 0 0 12 SE I 0 3 I 0 0 5 SSE 0 2 5 7 0 0 14 s 0 I 9 18 0 0 28 SSW 0 1 2 9 0 0 12 SW 0 0 4 4 0 0 8 WSW I I 0 0 0 3 w 1 0 1 0 0 0 2 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 I Total 5 11 50 44 0 0 IIO Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 110 Total Hours for Period 2208 A2.4-6

Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2015 -12/31/2015 Elevation: Speed: SPD60M . Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1 -4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 0 3 0 0 0 3 NNE 2 0 0 0 0 0 2 NE 2 2 2 0 0 0 6 ENE 2 0 3 0 0 0 5 E 1 1 8 0 0 0 10 ESE 2 3 4 2 0 0 11 SE I 2 7 3 0 0 13 SSE 0 1 11 7 0 0 19 s I 2 9 7 0 0 19 SSW 0 2 1 3 0 0 6 SW I 3 3 3 0 0 10 WSW 0 0 0 0 0 0 0 w 0 2 0 0 0 0 2 WNW I 2 0 0 0 0 3 NW 1 2 2 0 0 0 5 NNW 0 2 0 0 0 0 2 Total 14 24 53 25 0 0 116 Calm Hours not Included above for: Total Period 0 Valid Houi-s fo.-this Stability Class foi-: Total Period 116 Total Hou.-s for Period 2208 A2.4-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record= 10/01/2015 -12/31/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19-25 > 25 Total N 21 37 23 3 0 85 NNE 3 14 25 14 2 0 58 NE 5 13 44 24 0 0 86 ENE 3 20 40 40 8 0 111 E 2 15 30 25 10 0 82 ESE 4 11 32 ,.,,, .J.J 10 0 90 SE 4 9 37 55 21 I 127 SSE 0 20 72 75 20 15 202 s 2 23 99 135 30 3 292 SSW 1 16 63 103 34 3 220 SW 2 12 45 105 10 6 180 WSW 3 8 40 62 36 34 183 w 2 13 29 52 29 28 153 WNW I 13 23 39 18 13 107 NW 6 13 26 51 22 119 NNW 3 16 20 16 7 63 Total 42 237 662 852 260 105 2158 Calm Hours not Included above for: Total Period 0 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 50 Valid Hours for this Stability Class for: Total Period 2158 Total Hours for Period 2208 A2.4-8 OFF-SITE DOSE CALCULATION MANUAL CHANGES The Off-Site Dose Calculation Manual, PMP-6010-0SD-001, was revised during this reporting period. A copy of Revision 25 is included as part of this report. The reasons for the changes and the PORC approval are documented on the Review and Approval tracking form. These changes were determined to maintain the level of radioactive effluent control required by 10 CFR 20.1302, 40 CFR 190, 10 CFR50.36a, and Appendix Ito 10 CFR50 and not adversely impact the accuracy or reliability of effluent, dose, or setpoint calculations. A3.0-l ENCLOSURE 4 to AEP-NRC-2018-35 DONALD C. COOK NUCLEAR PLANT UNITS 1 AND 2 2014 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT, Revision 1 TABLE OF CONTENTS Page Table of Contents 1 I. IL III. IV. V. VI. VIL VIII. Introduction 1 Radioactive Releases and Radiological Impact on Man 1 Liquid Releases 2 Gaseous Releases 2 Solid Waste Disposition 2 Meteorological 3 Offsite Dose Calculation Manual (ODCM) Changes 3 Total Dose 3 Radiation Monitors Inoperable Greater Than 30 Days 4 Noteworthy Conditions Identified in 2014 4 Conclusion 5 LIST OF APPENDICES Title Appendix Al.I 2014 Effluent and Waste Disposal Annual Report -Supplemental Information Al .2 Summaiy of Maximum Individual Doses: First Quarter, Second Quarter, Third Quarter, and Fourth Quarter 2014 Al.3 2014 Groundwater Protection Initiative (GPI) Sample Data A2.l Hours at Each Wind Speed and Direction: First Quarter, 2014 A2.2 Hours at Each Wind Speed and Direction: Second Quarter, 2014 A2.3 Hours at Each Wind Speed and Direction: Third Quarter, 2014 A2.4 Hours at Each Wind Speed and Direction: Fourth Quarter, 2014 A3.0 Offsite Dose Calculation Manual (ODCM) Changes 1 L _____ _ I. INTRODUCTION This report discusses the radioactive discharges from Unit 1 and Unit 2 of the Donald C. Cook Nuclear Plant (CNP) during 2014. This is in accordance with the requirements of CNP Technical Specification (TS) 5.6.3. The table below summarizes the pertinent statistics concerning the Plant's operation during the period from January 1, 2014, to December 31, 2014. The data in this table and the descriptive information on plant operation are based upon the respective unit's Monthly Operating Reports, Performance Indicators and Control Room Logs for 2014. Parameter Unit 1 Unit2 Gross Electrical Energy Generation 8,574,834 9,63'1,872 (Megawatt Hour (MWH)) Unit Service Factor 91.0 97.1 (Percent(%)) Unit Capacity Factor 92.0 99.0 (Maximum Dependable Capacity (MDC)) Net (%) Unit 1 entered the reporting period in Mode 1 at Nominal Full Power (NFP). Small power adjustments were made to facilitate main turbine valve testing throughout the year. The unit performed a normal downpower and was manually tripped on September 24, 2014, entering the refueling outage U1C26. The unit attained criticality on October 23, 2014 and attained NFP on October 27, 2014. On November 1, 2014, a manual trip of the reactor was performed due to degraded cooling water intake conditions caused by severe weather. The unit attained criticality on November 3, 2014 and attained NFP on November 7, 2014. The unit exited the reporting period at NFP. Unit 2 entered the reporting period in Mode 1 at NFP. Small power adjustments were made to facilitate main turbine valve testing throughout the year. The unit commenced a normal planned downpower to 25% on July 11, 2014 to support online maintenance work. The unit returned to NFP on July 15, 2014. On November 1, 2014, a manual trip of the reactor was performed due to degraded cooling water intake conditions caused by severe weather. The unit attained criticality on November 10, 2014 and attained NFP on November 13, 2014. The unit exited the reporting period at NFP. IL RADIOACTIVE RELEASES AND RADIOLOGICAL IMPACT ON MAN Since a number of release points are common to both units, the release data from both units are combined to form this two-unit, Annual Radioactive Effluent Release Report. Appendix Al.1 through A2.4 of this report present the information in accordance with Section 5.6.3 of Appendix A to the Facility Operating Licenses, as specified in the Technical Specifications, Regulatory Guide 1.21, and 10 CFR Part 50, Appendix I. The "MIDAS System" is a computer code that calculates doses due to radionuclides that were released from the CNP. 1 All liquid and gaseous releases were well within Offsite Dose Calculation Manual (ODCM) limits and federal limits. There were no abnormal liquid releases and no abnormal gaseous releases in 2014. The Independent Spent Fuel Storage Installation (ISFSI) impacts are included with Unit 1 and Unit 2 statistics. The ISFSI cask system does not create any radioactive materials or have any radioactive waste treatment systems. Therefore, specific operating procedures for the control of radioactive effluents are not required. Specification 3 .1.1, Multi-Purpose Canister (MPC), provides assurance that there are not radioactive effluents from the ISFSI. Liquid Releases During 2014 there were 71 liquid batch releases performed. The number of liquid batch releases for the four quarters in 2014 was 10, 10, 22, and 29, respectively. Estimated doses (in mrem) to maximally exposed individuals via the liquid release pathways are given in Appendix Al .2 of this report. Gaseous Releases During the first quarter of 2014 there were two batch releases from Gas Decay Tanks (GDT) and 90 Containment Pressure Reliefs (CPR). During the second quarter there were 109 CPR. During the third quarter there were five batch releases from GDTs, one containment purge, and 108 CPR. During the fourth quarter there were two batch releases from GDTs and 104 CPR. The CPR continue to be listed as batch releases as described in Nuclear Regulatory Commission Inspections 50-315/89017 (DRSS); 50-316/89016 (DRSS) for CNP, dated June 13, 1989. Doses continue to be calculated utilizing continuous criteria as allowed by NUREG-0133. There were a total of nine GDT releases, one containment purge, and 411 CPR gaseous batch releases made during 2014. In calculating the dose consequences for continuous and batch gaseous releases during 2014, the meteorological data measured at the time of the release were used. The estimated doses (in mrem) to maximally exposed individuals via the gaseous release pathways are given in Appendix Al.2 of this report. For individuals that are within the site boundary, the occupancy time is sufficiently low to compensate for any increase in the atmospheric diffusion factor above that for the site boundary. Solid Waste Disposition There were 31 shipments of radioactive waste made during 2014. These included shipments made from the site to various radioactive waste processors for ultimate disposal. 2 L III. METEOROLOGICAL IV. Appendices A2.l, A2.2, A2.3, and A2.4 of this report contain the cumulative joint frequency distribution tables of wind speed and wind direction, corresponding to the various atmospheric stability classes for the first, second, third and fourth quarters of 2014. Hourly meteorological data is available for review and/or inspection upon request. OFFSITE DOSE CALCULATION MANUAL {ODCM) CHANGES The ODCM, PMP-6010-0SD-001, was not revised during the report period. V. TOTAL DOSE Section 3.2.5 of the ODCM requires that the dose or dose commitment to a real individual from all uranium fuel cycle sources in Berrien County be limited to no more than 25 mrem to the total body or any organ (except the thyroid, which is limited to no more than 75 mrem) over a period of 12 consecutive months to show conformance with the requirements of 40 CFR Part 190. The maximum cumulative dose to an individual from liquid and gaseous effluents during 2014 was well within the ODCM limits. Measurements using thermoluminescent dosimeters (TLD) at 12 onsite stations indicate that the dose due to direct radiation is consistent with preoperational and current control (background) levels. This is fully evaluated in CNP's 2014 Annual Radiological Environmental Operating Report. Additional TLD dosimetry installed by Radiation Protection department programs monitor dose received by individuals on site as visitors. The ammal dose to the maximum individual will be estimated by first, summing the quarterly total body air dose, the quarterly skin air dose, the quarterly critical organ dose from iodines and particulates (I&P), the quarterly total body dose from liquid effluents, the quarterly critical organ dose from liquid effluents, and the Radiological Environmental Monitoring Program onsite direct radiation TLD data. These quarterly values are summed with the annual Carbon-14 dose and compared to the annual total body limit for conservative reasons. The table that follows here represents the above written description: Dose (mrem) 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr I &P 1.02E-02 1.37E-02 3.27E-02 1.28E-02 Total Body Air 3.10E-04 5.30E-04 1.70E-03 1.70E-04 Skin 5.10E-04 8.60E-04 3.30E-03 2.BOE-04 Liquid TB 2.BOE-03 1.26E-02 3.58E-02 2.62E-02 Liquid Organ 2.BOE-03 1.26E-02 3.58E-02 2.62E-02 C14 (Annual) 2.38E+OO Direct Radiation 0 0 0 0 Total 1.66E-02 4.03E-02 1.09E-01 2.45E+OO Grand Total Dose (Total Body or any other Organ) mrem 2.61E+OO Annual Dose Limit (mrem) 25 Percent of limit 1.04E+01 3 The following data reflects a comparison with 2009 annual dose data (the last year without calculating C-14 dose), 2014 annual dose data, and 2014 annual dose data with C-14 added. This indicates that 2014 was a 'normal' single unit outage year with respect to radioactive effluents and allows for easier comparison. The table is presented as follows: Annual Dose (mrem) % of limit 2009 2.60E-01 1.04 2014 2.32E-01 0.93 2014 with C-14 2.61E+OO 10.4 VI. RADIATION MONITORS INOPERABLE GREATER THAN 30 DAYS There were no release pathways unmonitored for greater than 30 days. VIL NOTEWORTHY CONDITIONS IDENTIFIED IN 2014 There were no new noteworthy conditions identified in 2014. The past year did however validate the successful repairs of the CNP 60-Meter Meteorological Tower as previously discussed in the 2012 and 2013 Annual Radiological Effluent Release Reports. , During the Fourth Quarter of 2012, an intermittent fault was identified on the CNP 60-Meter Meteorological Tower that resulted in a large number of invalid data hours collected. A Condition Report (2012-2305) was initiated and repair work performed. The issue appeared to be a connection to the Delta Temperature instrumentation. Repairs yielded better data collection results in December 2012, however the intermittent fault returned and the system yielded additional invalid data hours during the First and Second Quarters of 2013. Additional repair work was performed when conditions allowed for safe work on the tower, and this resulted in the problem being positively identified as cabling fault grounding out the 10 Meter Delta Temperature instrumentation on the Main 60-Meter Tower. The repairs on the cable and instrumentation were successful at eliminating the intermittent fault and data collection has returned to near 100% valid hours. This issue is now considered corrected and closed. Carbon-14 Supplemental Information for the 2014 Annual Radioactive Effluent Release Report. C-14 has a 5730 year half-life and is a naturally occurring radionuclide produced by cosmic ray interactions in the atmosphere. C-14 is a relatively low energy beta emitter. Nuclear weapons testing in the 1950s and 1960s significantly increased the amount of C-14 in the atmosphere. C-14 is also produced in commercial nuclear reactors, but the amounts produced are much less than those produced naturally, from weapons testing, or coal burning power plants. The inventory of C-14 in Earth's biosphere is about 300 million Curies, of which most is in the oceans. Since the U.S. Nuclear Regulatory Commission (NRC) published Regulatory Guide (RG) 1.21, Revision 1, in 1974, the analytical methods for determining C-14 have improved. 4 Coincidentally, the radioactive effluents from commercial nuclear power plants over the same period have decreased to the point that C-14 is likely to be a principal radionuclide in gaseous effluents. Based on these reasons and a desire to adjust policy to align with international standards, the nuclear industry was required to report, starting in 2010, the quantity and dose impact of C-14 here in the United States. The dose will be reported both with and without C-14 so a comparison to 2009 can be made, keeping in mind the differing standards. The quantity of C-14 released to the environment can be estimated by use of a C-14 source term scaling factor based on power generation (Ref. RG 1.21, Revision 2). A recent study recommends a source te1m scaling factor of approximately 9.0 to 9.8 Curies/GWe-yr for a Westinghouse Pressurized Water Reactor (Ref. EPRI 1021106 "Estimation of Carbon-14 in Nuclear Plant Gaseous Effluents" December 23, 2010). A scaling factor of 9.4 Curies/GWe-yr was assumed for this report. Using this source term scaling factor and actual electrical generation (in MWH) produced during 2014 results in a site total of 19.54 Curies produced. C-14 releases from PWRs occur primarily as a mix of organic carbon (methane) and inorganic carbon ( carbon dioxide). As a general rule, C-14 in the primary coolant is essentially all organic with a large fraction as gas. Any time the primary coolant is exposed to an oxidizing environment ( during shutdown or refueling), a slow transformation from an organic to an inorganic species occurs. Various studies documenting measured C-14 releases from PWRs suggest an average 80% organic fraction with the remainder being carbon dioxide. This equates to 3 .91 Curies released as carbon dioxide which is available for the food pathway through photosynthesis to vegetation. Dose is calculated utilizing the methodology prescribed in RG 1.109, Appendix C with the vegetation dose being the most predominant. A 'p' factor of 0.33 is determined utilizing the 185 hours0.00214 days 0.0514 hours 3.058862e-4 weeks 7.03925e-5 months of batch gaseous releases performed during 2014 and the assumption that 70% of the C-14 released is from gaseous batch releases. A further reduction to the vegetation and leafy vegetable dose is wan-anted due to the limited growing season in Michigan, which was conservatively limited to nine months. The final results indicated a calculated organ dose from C-14 to a child at the site boundary of 1.88 mrem to the bone and a whole body dose of 0.499 mrem, for a combined total C-14 dose of 2.38 mrem. This is less than the dose limit of 15 mrem/unit to any organ prescribed in 10 CFR 50, Appendix I, and the 40 CFR Part 190 limit of25 mrem for total body and for any organ ( -:::_75 mrem for thyroid). VIII. CONCLUSION Based on the information presented in this report, it is concluded that CNP Units 1 and 2 performed their intended design function with no demonstrable adverse effect on the health and safety of the general public. 5 _____ _J Note: This entire document is Revision 1 submitted as "Errata" attached to the 2017 Annual Radioactive Effluent Release Report per Corrective Action 2017-4835. This new revision completely replaces the previously submitted report. This errata was necessitated due to problems identified with equipment utilized for counting tritium samples dating back to 2013. The alterations changed the overall public dose calculated from 2.59 millirems (10.4% of the 40 CFR190 allowable dose limits) to 2.61 millirems (10.4% of the 40CFR190 allowable dose limits). There were no adverse impacts to public health or safety by this minor change to dose. 6 2014 Effluent and Waste Disposal Annual Report SUPPLEMENTAL INFORMATION Facility: Donald C. Cook Nuclear Plant Licensee: Indiana Michigan Power Company 1 REGULATORY LIMITS 1. 1 Noble Gases The air dose in unrestricted areas due to noble gases released in gaseous effluents shall be limited to the following: 1.1.1 During any calendar quarter, to s 5 mrad/unit for gamma radiation ands 10 mrad/unit for beta radiation. 1.1.2 During any calendar year, to s 10 mrad/unit for gamma radiation ands 20 mrad/unit for beta radiation. 1.2 Iodines -Particulates 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 effluents released to unrestricted areas shall be limited to the following: 1.2.1 During any calendar quarter to s 7.5 mrem/unit to any organ. 1.2.2 During any calendar year to s 15 mrem/unit to any organ. 1. 3 Liquid Effluents The dose or dose commitment to an individual from radioactive material in liquid effluents released to unrestricted areas shall be limited: 1.3.1 During any calendar quarter to s 1.5 mrem/unit to the total body and to s 5 mrem/unit to any organ. 1.3.2 During any calendar year to s 3 mrem/unit to the total body and to s 10 mrem/unit to any organ. Al.1-1 ---------__________________ __J L 2014 Effluent and Waste Disposal Annual Report 1. 4 Total Dose The dose or dose commitment to a real individual 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 12 consecutive months. 2 MAXIMUM PERMISSIBLE CONCENTRATIONS 2.1 Gaseous Effluents The dose rate due to radioactive materials released in gaseous effluents from the site shall be limited to the following: 2.1.1 For noble gases: 500 mrem/yr to the total body and 3000 mrem/yr to the skin. 2.1.2 For all radioiodines and for all radioactive materials in particulate form and radionuclides (other than noble gases) with half-lives greater than eight days: 1500 mrem/yr to any organ. The above limits are provided to insure that radioactive material discharged in gaseous effluents will not result in the exposure of an individual in an unrestricted area to annual average concentrations exceeding the limits in 10 CFR Part 20, Appendix B, Table 2, Column 1. 2. 2 Liquid Effluents The concentration of radioactive material released at any time from the site to unrestricted areas shall be limited to 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 2 x 10-4 µCi/ml total activity. Al.1-2 ----------,

2014 Effluent and Waste Disposal Annual Report 3 AVERAGE ENERGY The average energy (E) of the radionuclide mixture in releases of fission and activation gases as defined in Regulatory Guide 1.21, Appendix B, Section A.3 is not applicable because the limits used for gaseous releases are based on calculated dose to members of the public. Release rates are calculated using an isotopic mix from actual samples rather than average energy. 4 MEASUREMENTS and APPROXIMATIONS of TOTAL RADIOACTIVITY 4.1 Fission and Activation Gases Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. 4.2 Iodines Sampled on iodine adsorbing media, and analyzed on an 8192 channel analyzer and HpGe detector. 4.3 Particulates Sampled on a glass filter and analyzed on an 8192 channel .analyzer and HpGe detector. Sr-89 and Sr-90 analyses are performed by offsite vendor. 4.4 Liquid Effluents Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. Fe-55, Sr-89 and Sr-90 analyses are performed by an offsite vendor. Ni-63 is also currently being analyzed by the offsite vendor in response to evaluation of the 10 CFR 61 sample results. Al.1-3 2014 Effluent and Waste Disposal Annual Report 5 BATCH RELEASES 5 .1 Liquid 5.1.1 Number of batch releases: 10 releases in -the 1st quarter, 2014 10 releases in -the 2nd quarter, 2014 22 releases in the 3rd quarter, 2014 -29 releases in the 4th quarter, 2014 5 .1. 2 Total time period for batch releases: 53,606 minutes 5.1.3 Maximum time for a batch release: 1,655 minutes 5.1.4 Average time period for batch release: 755 minutes 5.1.5 Minimum time period for a batch release: 164 minutes 5.1.6 Average stream flow during periods of release of effluent into a flowing stream: 7.13E+5 gpm circulating water Al.1-4 2014 Effluent and Waste Disposal Annual Report 5. 2 Gaseous 5.2.1 Number of batch releases: 92 releases in -the l st quarter, 2014 109 releases in the 2nd quarter, 2014 114 releases in the 3rd quarter, 2014 106 releases in the 4th quarter, 2014 5.2.2 Total time period for batch releases: 11,090 minutes 5.2.3 Maximum time for a batch release: 355 minutes 5.2.4 Average time period for batch release: 26 minutes 5.2.5 Minimum time period for a batch release: 5 minutes Al.1-5 2014 Effluent and Waste Disposal Annual Report 6 ABNORMAL RELEASES 6.1 Liquid 6 .1.1 Number of Releases: l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6 .1. 2 Total activity released (Ci): l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.2 Gaseous 6.2.1 Number of Releases: l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.2.2 Total activity released (Ci): l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 Al.1-6 L 2014 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! 11. FISSION GASES I H3 XE135m KR85 XE131m XE133m XE133 XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES I131 I132 I133 I Ci I Ci I Ci !Total for Period I Ci 13. PARTICULATES MN54 C060 CS137 I Ci I Ci I Ci !Total for Period I Ci 2.57E+Ol 2.57E+Ol 3.91E-10 3.91E-10

DENOTES SUPPLEMENTAL ISOTOPES 1.85E+Ol 1. 7 5E+Ol 2.33E+Ol 1. 90E-05 1. 85E+Ol 1. 75E+Ol 2.33E+Ol 7.32E-06 7.32E-06 Al.1-7 2014 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES BATCH MODE JNuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! Jl. FISSION GASES I H3 AR41 KR85 XE131M XE133M XE133 XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci J 2. IODINES I131 I133 I Ci I Ci JTotal for Period I Ci J3. PARTICULATES I

BR80 I

BR82 I Ci I Ci !Total for Period I Ci 2.37E-02 3.58E-01 3.18E-01 5.87E-02 7.58E-01

DENOTES SUPPLEMENTAL ISOTOPES 2.95E-02 3.60E-01 7.53E-02 4.65E-01 Al.1-8 5.45E-02 4.53E-01 9.81E-01 1.17E-01 8. llE-07 1. 61E+OO 3.20E-02 1.55E-01 2.45E-01 1.46E-03 2.56E-05 4.33E-01 L __ _ 2014 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES Units 1st 2nd 3rd 4th !Est. I Quarter I Quarter I Quarter I Quarter [Total I I I I IError,%1 I A. I FISSION AND I I ACTIVATION GASES I I Ci I 7.35E-Oli 4.35E-01[ 1.55E+OOI 4.0lE-011 11.5 [1. [Total Release [2. !Average release I [rate for period [uCi/secl 9.45E-021 5.54E-02[ 1.95E-011 5.05E-02[ I I I I I I [3. I Percent of [% Gamma I 1.03E-021 1.BOE-021 6.02E-02[ 5.54E-03[ I [applicable limit* I Beta I 6.12E-031 3.35E-031 3.90E-02[ 3.19E-031 I B. I IODINES 11. I Total I-131 I Ci I 3.91E-10[ O.OOE+OO[ O.OOE+OOI 7.32E-061 18.9 12. [Average release I [rate for period [uCi/sec[ 5.03E-11[ O.OOE+OO[ O.OOE+OO[ 9.21E-07[ I I I I I I I 3. I Percent of I % I [applicable limit* I JC. I PARTICULATES [1. I Particulates with[ Ci I !half lives>B days[ I l.43E-10[ O.OOE+OO[ O.OOE+OO[ 2.62E-06[ I I I I I I O.OOE+OO[ O.OOE+OO[ 0.00E+OO[ O.OOE+OOI N/A I I I I I 12. !Average release I [rate for period [uCi/sec[ O.OOE+OO[ O.OOE+OOI O.OOE+OO[ O.OOE+OOI I I I I I I I 3. I Percent of I % I I applicable limit* I I 4. I Gross alpha I I radioactivity ID. I TRITIUM I Ci I I Ci I O.OOE+OO[ O.OOE+OO[ O.OOE+OOI O.OOE+OOI I I I I I [<7.06E-071<6.46E-07[<7.67E-071<8.46E-07[ I I I I I I 2.57E+Ol[ 1.85E+Ol[ l.75E+Oli 2.33E+Ol[ 13.7 [1. [Total Release 12. [Average release I [rate for period [uCi/sec[ 3.31E+OO[ 2.36E+OOI 2.20E+00[ 2.93E+00[ I I I I I I I 3. I Percent of I % I [applicable limit* I I 1.89E-02[ 1.34E-021 1.26E-02[ 1.67E-02[ I I I I I

Applicable limits are expressed in terms of dose. See Appendices Al.2-1 through Al.2-4 Al.1-9 2014 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CS137 I Ci I Ci 7.26E-02 2.02E-02 1.25E-02 8.13E-02 BATCH MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CR51 MN54 FE55 C058 C060 NI63 I *KR85 ZR95 NB95 M099 TC99m AGllOm I *XE131m SB125 CS134 CS137 I *XE135 I131 I *XE133 I *XE133m I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci t Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci 1.03E+02 4.52E-05 4.41E-05 8.81E-06 2.20E-06 7.93E-07

DENOTES SUPPLEMENTAL ISOTOPES 4.85E+02 3.29E-05 5.70E-05 1.43E-05 8.51E-07 Al.1-10 l.38E+03 1.46E-06 3.98E-05 1.66E-04 1.58E-04 2.79E-05 2.25E-06 1. 7 6E-04 7.80E+02 1.53E-04 7.87E-05 7.0lE-07 4.23E-05 5.0BE-06 4.65E-05 JA. JFISSION AND I !ACTIVATION I !PRODUCTS Jl. JTotal Release J2. !Average diluted I Jconcentration I Jduring period J3. !Percent of 2014 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES BATCH MODE Units 1st 2nd 3rd 4th JEst. I Ci JuCi/ml I I % I Quarter I Quarter I Quarter I Quarter JTotal I I I I JError,%1 J 1.0lE-041 1.05E-04J 3.96E-04J 2.BOE-041 12.4 1.44E-11J 4.79E-12J 6.24E-12J 5.35E-12J I I I I I I I I I Japplicable limit I J 2.74E-04J 1.09E-04J 1.37E-04J 7.86E-05J I I I I I JB. JTRITIUM Jl. !Total Release J2. !Average diluted I Jconcentration I Jduring period J3. I Percent of I Ci JuCi/ml I I % J 1.03E+02J 4.85E+02J 1.38E+03J 7.80E+02J 10.1 1.47E-05J 2.21E-05J 2.lBE-051 l.49E-05J I I I I I I I I I Japplicable limit I J l.47E+OOJ 2.21E+OOJ 2.lBE+OOJ 1.49E+OOJ I I I I I JC. JDISSOLVED AND J !ENTRAINED GASES Jl. !Total Release J2. JAverage diluted I Jconcentration I Jduring period J3. !Percent of I Ci JuCi/ml I I % I --------J --------1 1.76E-04J 4.65E-05J 13.0 I --------J --------J 2.77E-12J 8.88E-13J I I I I I I I I I Japplicable limit I I --------J --------1 1.39E-06J 4.44E-07J I I I I I JD. JGROSS ALPHA J JRADIOACTIVITY J JTOTAL RELEASE JE. JVOLUME OF WASTE J !RELEASED JF. JVOLUME OF J !DILUTION WATER J JUSED DURING I JPERIOD Ci J<5.85E-05J<5.85E-05J<l.29E-04J<l.70E-04J N/A I I I I I I I I I I I Liters I 6.09E+05J 6.09E+05J 1.34E+06J 1.77E+061 I I I I I I Liters I I I I 7.04E+091 I I I 2.19E+10J I I I Al.1-11 6.34E+10J I I I 5.23E+10J I I I 2.00 I I 3.48 l IA. I FISSION AND I I ACTIVATION I I PRODUCTS 11. I Total Release 12. !Average diluted I I concentration I lduring period 13. I Percent of 2014 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES CONTINUOUS MODE Units I Ci luCi/ml I I % 1st 2nd 3rd 4th I Est. I Quarter I Quarter I Quarter I Quarter !Total I I I I IError,%1 I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI N/A O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I I I I !applicable limit I I O.OOE+OOI 0.00E+OOI O.OOE+OOI 0.00E+OOI I I I I I I B. I TRITIUM 11. !Total Release 12. !Average diluted I I concentration I !during period 13. I Percent of I Ci luCi/ml I I % I 7.26E-021 2.02E-021 1.25E-021 8.13E-071 22.2 1.0BE-101 3.77E-111 1.57E-111 4.93E-121 I I I I I I I I I !applicable limit I I 1.0BE-031 3.77E-041 1.57E-041 4.93E-051 I I I I I IC. I DISSOLVED AND I !ENTRAINED GASES 11. !Total Release 12. !Average diluted I I concentration I lduring period I 3. I Percent of I Ci luCi/ml I I % I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI N/A 0.00E+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OOJ, O.OOE+OOI O.OOE+OOI I I I I I ID. I GROSS ALPHA I I RADIOACTIVITY I ITOTAL RELEASE Ci O.OOE+OOI O.OOE+OOI O.OOE+001<5.08E-051 N/A I I I I I I I I IE. IVOLUME OF WASTE I Liters I 2.29E+061 4.81E+061 3.08E+061 O.OOE+OOI 2.00 I I I RELEASED I I I I I I I I F. I VOLUME OF I !DILUTION WATER I I USED DURING I I PERIOD Liters I I I I 7. 07E+ll I I I I 5. 36E+ll 1 I I I Al. 1-12 7. 95E+ll I I I I l.65E+081 I I I 3.48 L 2014 Effluent and Waste Disposal Annual Report Solid Waste and Irradiated Fuel Shipments Solid Waste Shipped Offsite for Burial or Disposal 1) Type of Waste Unit Estimated amount Estimated Total Error, % a) Spent resins, filters, sludge, m3 3.98E+01 1.00E+OO evaporator bottoms, etc. Curies 2.82E+02 3.75E+OO b) Dry compressible waste, m3 7.39E+02 1.00E+OO contaminated equipment, etc. Curies 2.09E+OO 6.48E+OO c) Irradiated components, control m3 Curies rods, etc. d) Other (contaminated soil) m3 Curies 2) Estimate of Principle Radionuclide Composition a) H-3 9% Co-58 1% Sb-125 1 % Cs-137 / 5 % Mn-54 1% Co-60 12 % Cs-134 3% Fe-55 9.5% Ni-63 58 % Ni-59 0.5 % b) Ni-59 1% Co-58 3% Sb-125 5% Mn-54 2.5% Co-60 39 % Zr/Nb-95 1% Fe-55 35 % Ni-63 12 % Zn-65 1% C-14 0.5% 3) Solid Waste Disposition No. of Shipments Mode of Transportation Destination 8 Truck Memphis, TN 18 Truck Oak Ridge, TN 2 Truck Erwin, TN 3 Truck Kingston, TN 4) Type of Containers used for Shipment: Containers used are excepted packages, Type A, Sea Land, metal boxes, drums, tankers, and hi h inte rit containers HICs . II 5) Solidification Agent: There were no solidifications performed during this report period. Al.1-13 2014 Effluent and Waste Disposal Annual Report Yearly Release Rates GASES Fission and Activation Gases Total Release 3.12E+OO Curies Average Release Rate 9.89E-02 µCi/sec % of Applicable Limits

y4.70E-02 % 13 2.1 lE-02 % Iodines Total I-131 Release 7.32E-06 Curies Average Release Rate 2.30E-07 µCi/sec % of Applicable Limit* 4.57E-01 % Particulates Total Release 0.00 Curies Average Release Rate 0.00 µCi/sec % of Applicable Limit* 0.00% LIQUIDS Fission and Activation Products Total Release 8.82E-04 Curies Average Diluted Concentration 8.lOE-12 µCi/ml % of Applicable Limits

Total Body 2.20E+OO % Organ 6.59E-O 1 %

Applicable limits are expressed in terms of the annual 10 CFR 50, Appendix I, dose limits. Al.1-14 Site Boundary and Nearest Residence Listing The following distances were used in the calculation of the maximum individual doses: Sector Direction Boundary (Meters) Nearest Residence (Meters) A N 651 659 B NNE 617 660 C NE 789 943 D ENE 1497 1747 E E 1274 1716 F ESE 972 1643 G SE 629 1640 H SSE 594 964 J s 594 997 K SSW 629 942 Al.1-15 l Summary of Maximum Individual Doses First Quarter 2014 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) {Toward) LIMIT QTR Liquid Total Body 2.80E-03 Child Receptor 1 1.86E-01 1.5E+O Liquid Liver 2.80E-03 Child Receptor 1 5.60E-02 5.0E+O Noble Gas Air Dose 5.14E-04 Any 651 (N) l.03E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 6.12E-04 Any 789 (NE) 6.12E-03 1.0E+l (Beta-mrad) Age Iodines and Total Body 1.02E-02 Child 659 (N) 1.36E-01 7.5E+O Particulates Al.2-1 Summary of Maximum Individual Doses Second Quarter 2014 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDffi(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 1.26E-02 Child Receptor 1 8.39E-01 1.5E+O Liquid Liver l.26E-02 Child Receptor 1 2.52E-Ol 5.0E+O Noble Gas Air Dose 8.99E-04 Any 651 (N) 1.SOE-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 3.35E-04 Any 651 (N) 3.35E-03 1.0E+l (Beta-mrad) Age Iodines and Total Body 1.37E-02 Child 659 (N) l.83E-01 7.5E+O Particulates Al.2-2 Summary of Maximum Individual Doses ./ Third Quarter 2014 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 3.58E-02 Child Receptor 1 2.39E+OO 1.5E+O Liquid Liver 3.58E-02 Child Receptor 1 7.16E-01 5.0E+O Noble Gas Air Dose 3.0lE-03 Any 651 (N) 6.02E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 3.90E-03 Any 617 (NNE) 3.90E-02 1.0E+l (Beta-mrad) Age Iodines and Total Body 3.27E-02 Child 659 (N) 4.36E-01 7.5E+O Particulates Al.2-3 Summary of Maximum Individual Doses Fourth Quarter 2014 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 2.62E-02 Child Receptor 1 1.75E+OO l.5E+O Liquid GI-LLI 2.62E-02 Child Receptor 1 5.24E-01 5.0E+O Noble Gas Air Dose 2.77E-04 Any 651 (N) 5.54E-03 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 3.19E-04 Any 594 (SSE) 3.19E-03 1.0E+l (Beta-mrad) Age Iodines and Thyroid 1.28E-02 Child 659 (N) l.71E-01 7.5E+O Particulates Al.2-4 2014 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection = LLD (Note: Wells MW-22 through MW-27 are multi-port wells installed in the Fall of 2009, with three sample points placed at different depths. S= Shallow M= Middle D= Deep.) (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-1 2014 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection = LLD (Note: Wells MW-22 through MW-27 are multi-port wells installed in the Fall of 2009, with three sample points placed at different depths. S= Shallow M= Middle D= Deep.) (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) A"l:3-2 2014 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD [.Qa(e,,,, ...*.. ,"1'.§.G~l_,* .. '~[$~~-*-.1rsq:.4****** .. :J'.§G:"~7s ... 1:-0)V:.2">JLivlw.:10.EJ[~f2F.*".:/Jfw~1s .. . 02/17/2014*:~ *> ! 0212412on* '.J ~**cc=~= , ... =.c.-c.c::.~..c ... i 08(,}4/20140:l 09/28/2014 i 10/0.5/2Q14 3) --*"**' .. ~-l O/ i? /2014 1 16!id!ib:f4' l ,.___ ___ ~-~,--------'***--~*-**---* . 10/23/2014 (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-3 2014 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD LDi!te . ..," \vd :.w,J:.~~1 rw:-10 _JJ0J [w~lT .... \ sw.:12*;** ** .:J t,W~13,. , 71 LW-14Ji; *!\I :~w3s: .. -~ ;:<5\¥-1. *-,: ) . 01/13/2014. *: ;: /<LLD' . *<LLD ; f *Ot714/2QI4 .. ** ! 05/30/2014 ., . [0§!02/20i.~(-.i L~LD<,!LA,LD.* .... * .. :'. <J,~D"-.Ji <::LLD* ... *.J ' 06/16/2014. . , '.' . j 07/21/20}4 'l i <LLD ;cS; H <LLD _; L <1,Lffi*'. C ;; i <LLP ,., J f'<LLI) < .L <LLff.;,~u)! ,.~.,"-... -,,> .. ,--,,,.' C,,,,,,... **""***"*" 08/14/2014 .. *<LLD . <LLD <LLD <LLD ** .* Lo2J2s12or~r1 *-* __ .... ~= 09/29/2014 <LLD <LLD 1

OW3 0/2.Q}:l :: *****-**** .. --*-****** .... , .... , .... .'*.C,,., ...... , ....... --, ..... .............. . 10/29/2014 i.*11/21/20141 . ,-*-**"~-~, v,~-~ < ¥ L.:2.:: ....... ,_ -* . .. -****--.. ~----~-.~ (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-4 ",*'!

2014 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD LI>ate<_, lrw.,1 i>::?l[Wfi: ;. JtJY.,3 *~0* ! f w:ss,*, '?lLW:6 ... *irw::7 CC:' J[\V-8'., ,J 'of/1312014 .. : ?' * < ,.~ttrr':\... ,, i, 01/30[201(] *: 02/03/2QJ4 *. ',i; LP'.?IM!JOI4 J . o;ii}12nf . L22.1:1?1ig_143

04/22/2014 '; 10/21/2014 * ,-~-~~*--,~*-, l*< ii\i ,' ;ff'.)~.-=,,;,,_----'-~"""'"" (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.)

2014 GPI Sample Data Analysis of the Sample Data The Groundwater Protection Initiative (GPI) Sample Data for 2014 indicates no groundwater contamination in excess of the reporting threshold of2.00E-5 uCi/mL for tritium. Gamma spectroscopy was performed on all Radiological Environmental Monitoring Program wells quarterly. Those results are not actual GPI results so are not included in the ARERR, but are part ofCNP's 2014 Annual Radiological Environmental Operating Report. There were no positively identified radionuclides from plant effluents detected in any of the GPI well samples. The LLD value used for tritium counting of the samples varied between 9 .42E-7 and 9 .63E-7uCi/mL, depending on which scintillation counter was used. This is well below the required maximum LLD value of2.00E-6 uCi/mL per theODCM. A set of samples obtained in March 2014 were found to have detectable tritium above the LLD, but these results appeared suspect as they were unusually distributed across the site, having had no prior indications of any previous groundwater tritium present in recent sampling. An investigation was initiated and documented via AR#2014-7010, to identify a cause. Subsequent samples did not indicate detectable tritium present. It was determined that the sample results were not accurate, due to a combination of factors. The samples were counted in the Plant's Hot Lab where high airborne concentrations of tritium are possible from reactor coolant samples, causing potential contamination of the samples. This lab is not the normal location used for environmental samples due to this potential. Additionally, the background in the Hot Lab was found to have changed significantly during this period, creating an environment for false positives to occur in samples with low LLDs. Corrective actions were completed to minimize the likelihood of this occurring again, including training via a Crew Event Notice to ensure personnel were aware of the condition and know how to avoid a repeat situation. While no valid unsuspected tritium values were found above LLD for 2014, values found above the LLD are not abnormal, unexpected, or inconsistent with past sampling history. The samples observed above LLD historically were expected results from the release oftritiated water into the Absorption Pond, a licensed pathway and part of plant design, or the result ofrecapture deposition of tritium from licensed radioactive gaseous release points. The 2014 results were expected considering the reduction in tritium released to the Absorption Pond and a below average rainfall experienced. Wells located inside the Protected Area of the plant are subject to recapture deposition of tritium and may show occasional sample results above LLD values following rainfalls and snow melt. The results observed in 2014 continue to reflect normal expectations and behaviors as they relate to recaptured tritium for the weather conditions observed in 2014. The sample data indicates that no radioactive spills or unidentified leaks have occurred in 2014 impacting groundwater. The sample results indicate proper well placement to ensure the protection of the groundwater and early identification of any abnormal conditions involving groundwater. This is validated by the demonstrated ability to monitor percolation from the Absorption Pond and recaptured tritium in precipitation, with flow direction and behavior acting as described in the plant licensing documents. Al.3-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2014 -03/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 5 20 17 10 0 52 NNE 0 3 4 4 0 0 11 NE 0 5 3 6 1 0 15 ENE 0 6 6 6 0 0 18 E 0 0 4 0 0 0 4 ESE 0 1 9 9 0 0 19 SE 3 2 16 13 1 0 35 SSE 0 10 28 17 11 0 66 s 0 4 6 17 3 0 30 SSW 0 3 4 3 2 2 14 SW 0 1 7 31 10 7 56 WSW 0 11 11 24 4 3 53 w 0 7 23 18 14 1 63 WNW 0 14 14 19 2 0 49 NW 0 5 12 15 6 3 41 NNW 0 3 18 11 6 1 39 Total 3 80 185 210 70 17 565 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 565 Total Hours for Period 2160 A2.1-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 01/01/2014 -03/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 4 6 8 2 0 20 NNE 1 2 11 6 1 0 21 NE 0 7 5 0 0 0 12 ENE 0 6 7 2 0 0 15 E 0 2 1 0 0 0 3 ESE 0 2 3 0 2 0 7 SE 0 2 2 4 0 0 8 SSE 0 2 4 1 4 0 11 s 0 0 2 4 3 0 9 SSW 0 1 3 3 3 1 11 SW 0 0 5 9 6 1 21 WSW 1 2 2 1 2 2 10 w 0 0 2 3 4 4 13 WNW 0 1 1 8 2 1 13 NW 0 1 5 2 1 0 9 NNW 0 2 8 2 1 0 13 Total 2 34 67 53 31 9 196 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 196 Total Hours for Period 2160 A2.1-2 L Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2014 -03/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 1 2 8 6 0 1 18 NNE 0 2 4 6 0 0 12 NE 1 4 6 14 0 0 25 ENE 0 3 6 6 0 0 15 E 1 2 1 0 0 0 4 ESE 0 0 3 2 3 0 8 SE I 4 8 2 I 0 16 SSE 0 3 10 5 5 0 23 s 0 2 16 3 6 1 28 SSW 0 0 10 3 2 0 15 SW 0 3 5 11 6 2 27 WSW 0 1 5 6 6 5 23 w 0 1 7 13 7 5 33 WNW 0 1 6 13 22 2 44 NW 1 1 6 5 5 2 20 NNW 0 2 7 5 0 0 14 Total 5 31 108 100 63 18 325 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 325 Total Hours for Period 2160 A2.1-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2014 -03/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 2 5 5 1 1 0 14 NNE 1 4 8 5 2 0 20 NE 2 4 16 13 1 0 36 ENE 1 6 14 4 0 0 25 E 1 3 10 2 1 0 17 ESE 0 1 6 7 0 0 14 SE 0 5 17 10 4 0 36 SSE 0 6 8 11 14 4 43 s 2 13 17 24 36 5 97 SSW 1 9 18 16 10 1 55 SW 0 3 9 26 26 11 75 WSW 1 1 6 19 17 4 48 w 0 1 12 33 20 4 70 WNW 0 2 9 41 23 16 91 NW 2 3 8 16 4 4 37 NNW 2 2 11 2 0 0 17 Total 15 68 174 230 159 49 695 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 695 Total Hours for Period 2160 A2.1-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2014 -03/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 1 3 3 1 0 8 NNE 0 3 2 1 0 0 6 NE 0 1 3 1 0 0 5 ENE 1 6 6 0 0 0 13 E 0 0 1 2 0 0 3 ESE 0 1 8 3 2 0 14 SE 0 3 16 8 0 0 27 SSE 0 4 10 7 2 0 23 s 1 1 9 12 3 1 27 SSW 0 1 11 7 3 0 22 SW 0 3 4 8 4 1 20 WSW 0 3 6 12 2 0 23 w 0 5 2 5 4 0 16 WNW 0 1 0 1 1 1 4 NW 0 2 2 0 2 7 NNW 0 0 2 1 0 0 3 Total 2 35 84 73 22 5 221 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 221 Total Hours for Period 2160 A2.1-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 01/01/2014 -03/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 0 0 0 I 0 I NNE 0 I 0 0 0 0 I NE 0 3 I 0 0 0 4 ENE I 0 3 0 0 0 4 E 0 1 1 0 0 0 2 ESE 0 3 3 0 0 0 6 SE 0 1 6 1 0 0 8 SSE 1 3 10 12 1 0 27 s 0 3 8 3 1 0 15 SSW 0 1 4 0 0 0 5 SW 2 0 7 0 0 0 9 WSW 0 0 1 0 0 0 1 w 1 1 0 0 0 0 2 WNW 0 0 0 0 0 1 1 NW 1 0 0 0 0 1 2 NNW 0 1 0 0 0 0 1 Total 6 18 44 16 3 2 89 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 89 Total Hours for Period 2160 A2.1-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2014 -03/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 0 0 0 0 0 0 NNE 1 0 0 0 0 0 1 NE 1 0 0 0 0 0 1 ENE 0 2 0 0 0 0 2 E 0 4 0 0 0 0 4 ESE 0 1 2 1 0 0 4 SE 0 5 3 1 0 0 9 SSE 0 2 7 1 0 0 10 s 0 5 7 0 0 0 12 SSW 0 6 4 0 0 0 10 SW 0 3 1 0 0 0 4 WSW 1 2 0 0 0 0 3 w 1 1 0 0 0 0 2 WNW 1 2 0 0 0 0 3 NW 0 0 1 0 0 0 1 NNW 0 0 0 0 0 0 0 Total 5 33 25 3 0 0 66 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 66 Total Hours for Period 2160 A2.1-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 01/01/2014 -03/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 3 17 42 35 15 1 113 NNE 3 15 29 22 3 0 72 NE 4 24 34 34 2 0 98 ENE 3 29 42 18 0 0 92 E 2 12 18 4 1 0 37 ESE 0 9 34 22 7 0 72 SE 4 22 68 39 6 0 139 SSE 1 30 77 54 37 4 203 s 3 28 65 63 52 7 218 SSW 1 21 54 32 20 4 132 SW 2 13 38 85 52 22 212 WSW 3 20 31 62 31 14 161 w 2 16 46 72 49 14 199 WNW 1 21 30 82 50 21 205 NW 4 12 33 40 16 12 117 NNW 2 10 46 21 7 1 87 Total 38 299 687 685 348 100 2157 Calm Hours not Included above for : Total Period 0 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 3 Valid Hours for this Stability Class for: Total Period 2157 Total Hours for Period 2160 A2.1~8 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2014 -06/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13-19 19-25 > 25 Total N 0 16 31 17 3 0 67 NNE 2 6 4 0 0 0 12 NE 1 4 I 0 0 0 6 ENE I 2 6 2 0 0 11 E 1 5 14 9 1 5 35 ESE 0 2 10 14 10 2 38 SE 2 3 16 6 4 I 32 SSE I 12 36 24 3 0 76 s 1 3 27 13 2 0 46 SSW 0 2 5 7 2 0 16 SW 2 4 29 20 2 0 57 WSW 0 13 44 22 9 I 89 w 0 24 22 9 4 0 59 WNW 5 30 13 9 I 0 58 NW 2 25 17 16 I 0 61 NNW 2 33 66 26 15 0 142 Total 20 184 341 194 57 9 805 Calm Hours not Included above for : Total Period 6 Valid Hours for this Stability Class for: Total Period 805 Total Hours for Period 2184 A2.2-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 04/01/2014 -06/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13-19 19 -25 > 25 Total N 2 3 6 1 2 0 14 NNE 0 2 2 1 0 0 5 NE 2 1 0 0 0 0 3 ENE 1 1 1 0 0 0 3 E 0 0 3 0 0 1 4 ESE 0 1 1 0 1 4 SE 0 1 1 1 0 4 SSE 0 0 2 1 1 0 4 s 0 1 0 1 1 0 3 SSW 0 0 2 2 1 0 5 SW 0 2 3 7 1 0 13 WSW 0 3 0 0 3 0 6 w 1 3 1 1 0 0 6 WNW 1 2 2 0 0 0 5 NW 0 3 0 0 0 0 3 NNW 0 3 0 0 2 1 6 Total 7 26 24 16 12 3 88 Calm Hours not Included above for : Total Period 6 Valid Hours for this Stability Class for: Total Period 88 Total Hours for Period 2184 A2.2-2

Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 04/01/2014 -06/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) I Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 2 3 5 5 2 0 17 NNE 1 4 1 0 0 0 6 NE 0 1 2 0 0 0 3 ENE 0 1 3 1 0 0 5 E 0 1 2 0 2 1 6 ESE 0 0 1 0 2 0 3 SE 0 1 1 0 0 0 2 SSE 0 0 3 3 0 0 6 s 0 3 4 5 4 0 16 SSW 0 2 0 1 1 5 SW 2 0 5 I 0 1 9 WSW 0 0 0 2 3 I 6 w 1 2 0 0 0 0 3 WNW 2 3 0 1 0 0 6 / NW 0 3 0 0 0 0 3 NNW 0 3 I 0 0 0 4 Total 8 26 30 18 14 4 100 Calm Hours not Included above for : Total Period 6 Valid Hours for this Stability Class for: Total Period 100 Total Hours for Period 2184 A2.2-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2014 -06/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19 -25 > 25 Total N 6 8 18 11 8 0 51 NNE 4 9 8 6 0 0 27 NE 2 5 5 0 0 0 12 ENE 0 2 5 1 0 0 8 E 2 4 11 13 16 9 55 ESE 1 3 4 9 16 1 34 SE 1 2 9 17 6 0 35 SSE 2 1 3 14 1 0 21 s 0 4 23 33 10 0 70 SSW 0 4 8 25 8 0 45 SW 0 6 3 9 3 0 21 WSW 1 5 4 10 1 2 23 w 5 0 7 3 5 0 20 WNW 0 2 3 1 3 0 9 NW 2 4 7 3 3 0 19 NNW 5 4 6 4 3 0 22 Total 31 63 124 159 83 12 472 Calm Hours not Included above for : Total Period 6 Valid Hours for this Stability Class for: Total Period 472 Total Hours for Period 2184 A2.2-4

Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2014 -06/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 1 4 7 2 1 0 15 NNE 0 7 7 1 0 0 15 NE 1 6 17 2 0 0 26 ENE 0 8 7 5 0 0 20 E 0 2 14 2 1 0 19* ESE 2 4 18 6 0 0 30 SE 1 7 30 15 0 0 53 SSE 1 6 21 17 3 0 48 s 1 5 18 12 5 0 41 SSW 1 2 7 6 1 1 18 SW 2 4 5 10 1 0 22 WSW 0 2 3 4 0 0 9 w 0 0 2 5 0 0 7 WNW 0 2 9 5 4 0 20 NW 0 4 4 3 0 0 11 NNW 0 4 1 1 0 0 6 Total 10 67 170 96 16 1 360 Calm Hours not Included above for : Total Period 6 Valid Hours for this Stability Class for: Total Period 360 Total Hours for Period 2184 A2.2-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 04/01/2014 -06/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 1 5 5 0 0 0 11 NNE 0 4 1 0 0 0 5 NE 1 3 10 1 0 0 15 ENE 1 6 5 5 0 0 17 E 1 1 7 1 0 0 10 ESE 1 3 16 2 0 0 22 SE 0 5 9 4 0 0 18 SSE 0 3 10 13 0 0 26 s 1 2 9 18 0 0 30 *SSW 0 3 7 4 0 0 14 SW 0 0 0 0 0 0 0 WSW 0 2 1 0 0 0 3 w 0 2 2 1 0 0 5 WNW 0 2 2 0 0 0 4 NW 1 1 2 0 0 0 4 NNW 0 1 3 2 0 0 6 Total 7 43 89 51 0 0 190 Calm Hours not Included above for : Total Period 6 Valid Hours for this Stability Class for: Total Period 190 Total Hours for Period 2184 A2.2-6

Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2014 -06/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 4 4 0 0 0 8 NNE 0 2 1 0 0 0 3 NE 1 5 1 0 0 0 7 *ENE 0 6 14 4 0 0 24 E 1 2 9 1 0 0 13 ESE 0 6 17 1 0 0 24 SE 2 5 15 1 0 0 23 SSE 0 3 3 3 0 0 9 s 0 1 4 1 0 0 6 SSW 0 0 10 2 0 0 12 SW 0 1 2 1 0 0 4 WSW 0 1 2 I 0 0 4 w 1 1 0 0 0 0 2 WNW 1 1 0 0 0 0 2 NW 1 3 0 0 0 0 4 NNW 0 3 0 0 0 0 3 Total 7 44 82 15 0 0 148 Calm Hours not Included above for : Total Period 6 Valid Hours for this Stability Class for: Total Period 148 Total Hours for Period 2184 A2..2-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 04/01/2014 -06/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 12 43 76 36 16 0 183 NNE 7 34 24 8 0 0 73 NE 8 25 36 3 0 0 72 ENE 3 26 41 18 0 0 88 E 5 15 60 26 20 16 142 ESE 4 19 67 33 28 4 155 SE 6 24 81 44 11 1 167 SSE 4 25 78 75 8 0 190 s 3 19 85 83 22 0 212 SSW 1 12 41 46 13 2 115 SW 6 17 47 48 7 1 126 WSW 1 26 54 39 16 4 140 w 8 32 34 19 9 0 102 WNW 9 42 29 16 8 0 104 NW 6 43 30 22 4 0 105 NNW 7 51 77 33 20 1 189 Total 90 453 860 549 182 29 2163 Calm Hours not Included above for : Total Period 6 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 15 Valid Hours for this Stability Class for: Total Period 2163 Total Hours for Period 2184 A2.2-8 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2014 -09/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 4 6 27 22 1 0 60 NNE 1 0 2 0 0 0 3 NE 1 6 5 0 0 0 12 ENE 2 5 9 0 0 0 16 E 0 8 10 0 0 0 18 ESE 1 7 10 0 0 0 18 SE 2 10 2 0 0 0 14 SSE 3 3 14 7 0 0 27 s 1 6 11 5 0 0 23 SSW 0 3 6 0 0 0 9 SW 0 3 7 6 0 0 16 WSW 1 23 29 6 1 1 61 w 4 22 27 6 0 0 59 WNW 2 29 18 0 0 0 49 NW 3 15 22 2 1 0 43 NNW 9 24 37 12 1 1 84 Total 34 170 236 66 4 2 512 Calm Hours not Included above for : Total Period 26 Valid Hours for this Stability Class for: Total Period 512 Total Hours for Period 2208 A2.3-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 07/01/2014 -09/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 1 1 3 3 1 0 9 NNE 0 0 0 0 0 0 0 NE 0 1 1 0 0 0 2 ENE 2 1 0 0 0 0 3 E 0 0 0 0 0 0 0 ESE 0 4 1 0 0 0 5 SE 1 1 1 1 0 0 4 SSE 1 4 6 2 0 0 13 s 0 5 4 3 0 0 12 SSW 0 4 6 2 1 0 13 SW 1 3 3 7 0 0 14 WSW 3 7 4 1 0 0 15 w 2 3 2 1 0 0 8 WNW 0 3 0 0 0 0 3 NW 0 2 2 1 0 0 5 NNW 1 2 2 3 0 0 8 Total 12 41 35 24 2 0 114 Calm Hours not Included above for : Total Period 26 Valid Hours for this Stability Class for: Total Period 114 Total Hours for Period 2208 A2.3-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2014 -09/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 0 2 4 1 0 7 NNE 0 1 0 1 0 0 2 NE 0 1 0 0 0 0 1 ENE 0 1 1 0 0 0 2 E 0 1 2 0 0 0 3 ESE 0 2 0 0 0 0 2 SE 2 1 0 0 0 0 3 SSE 0 3 1 2 0 0 6 s 0 6 3 1 0 0 10 SSW 0 4 5 1 0 0 10 SW 1 1 5 2 0 0 9 WSW 2 3 3 3 0 0 11 w 1 1 0 0 0 0 2 WNW 2 3 0 0 1 0 6 NW 1 3 0 0 0 1 5 NNW 1 3 3 4 0 0 11 Total 10 34 25 18 2 1 90 Calm Hours not Included above for : Total Period 26 Valid Hours for this Stability Class for: Total Period 90 Total Hours for Period 2208 A2.3-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2014 -09/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19 -25 _ > 25 Total N 1 14 15 26 6 0 62 NNE 0 2 5 4 1 0 12 NE 0 6 6 0 0 0 12 ENE 0 4 7 0 0 0 11 E 0 5 5 0 0 0 10 ESE 1 0 6 0 0 0 7 SE 0 7 12 0 0 0 19 SSE 0 1 10 5 1 0 17 s 3 6 12 8 0 0 29 SSW 2 8 13 14 2 0 39 SW 0 10 17 21 2 0 50 WSW 1 7 10 7 3 1 29 w 0 6 3 0 0 0 9 WNW 1 6 1 2 5 1 16 NW 3 0 1 2 7 0 13 NNW 2 10 7 20 10 1 50 Total 14 92 130 109 37 3 385 Calm Hours not Included above for : Total Period 26 Valid Hours for this Stability Class for: Total Period 385 Total Hours for Period 2208 A2.3-4

Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 07/01/2014 -09/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1:4 4-8 8-13 13 -19 19-25 > 25 Total N 3 11 11 1 0 0 26 NNE 3 6 8 0 0 0 17 NE 0 7 16 0 0 0 23 ENE 0 5 8 0 0 0 13 E 0 5 5 0 0 0 10 ESE 0 4 14 3 0 0 21 SE 0 6 24 2 0 0 32 SSE 1 6 13 9 0 0 29 s 3 11 32 14 0 0 60 SSW 1 7 24 9 0 0 41 SW 1 3 13 8 0 0 25 WSW 0 2 5 6 0 0 13 w 1 4 3 0 0 0 8 WNW 1 7 3 0 0 0 11 NW 2 5 5 1 1 0 14 NNW 0 3 5 1 0 0 9 Total 16 92 189 54 1 0 352 Calm Hours not Included above for : Total Period 26 Valid Hours for this Stability Class for: Total Period 352 Total Hours for Period 2208 A2.3-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2014 -09/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 2 4 1 1 0 0 8 NNE 1 6 4 1 0 0 12 NE 1 5 12 0 0 0 18 ENE 0 4 14 0 0 0 18 E 1 4 9 1 0 0 15 ESE 0 4 17 5 0 0 26 SE 2 1 15 1 1 0 20 SSE 0 6 18 0 0 0 24 s 0 3 23 3 0 0 29 SSW 0 4 8 1 0 0 13 SW 0 4 6 1 0 0 11 WSW 1 1 2 0 0 0 4 w 1 1 3 0 0 0 5 WNW 0 1 0 0 0 0 1 NW 0 1 0 0 0 0 1 NNW 1 0 1 0 0 0 2 Total 10 49 133 14 1 0 207 Calm Hours not Included above for : Total Period 26 Valid Hours for this Stability Class for: Total Period 207 Total Hours for Period 2208 A2.3-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2014 -09/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19 -25 > 25 Total N 0 5 1 0 0 0 6 NNE 3 4 3 0 0 0 10 NE 7 7 8 0 0 0 22 ENE 1 15 10 1 0 0 27 E 2 9 13 4 0 0 28 ESE 2 4 16 6 0 0 28 SE 6 9 19 2 0 0 36 SSE 3 8 25 2 0 0 38 s 1 6 18 14 0 0 39 SSW 2 6 17 11 0 0 36 SW 3 7 17 0 0 0 27 WSW 0 9 7 0 0 0 16 w 2 7 0 0 0 0 9 WNW 1 9 0 0 0 0 10 NW 3 3 1 0 0 0 7 NNW 2 7 0 0 0 0 9 Total 38 115 155 40 0 0 348 Calm Hours not Included above for : Total Period 26 Valid Hours for this Stability Class for: Total Period 348 Total Hours for Period 2208 A2.3-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 07/01/2014 -09/30/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19 -25 > 25 Total N 11 41 60 57 9 0 178 NNE 8 19 22 6 1 0 56 NE 9 33 48 0 0 0 90 ENE 5 35 49 1 0 0 90 E 3 32 44 5 0 0 84 ESE 4 25 64 14 0 0 107 SE 13 35 73 6 1 0 128 SSE 8 31 87 27 1 0 154 s 8 43 103 48 0 0 202 SSW 5 36 79 38 3 0 161 SW 6 31 68 45 2 0 152 WSW 8 52 60 23 4 2 149 w 11 44 38 7 0 0 100 WNW 7 58 22 2 6 1 96 NW 12 29 31 6 9 1 88 NNW 16 49 55 40 11 2 173 Total 134 593 903 325 47 6 2008 Calm Hours not Included above for : Total Period 26 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 174 Valid Hours for this Stability Class for: Total Period 2008 Total Hours for Period 2208 A2.3-8 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 10/01/2014 -12/31/2014 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13-19 19 -25 > 25 Total N 0 1 15 3 0 0 19 NNE 0 0 3 I 0 0 4 NE 0 2 5 1 0 0 8 ENE 0 3 3 0 0 0 6 E 0 2 1 0 0 0 3 ESE 0 4 6 0 0 0 10 SE 0 1 11 8 0 0 20 SSE 0 2 8 8 2 1 21 s 0 2 8 7 0 0 17 SSW 0 0 2 2 0 0 4 SW 0 2 6 5 0 0 13 WSW 0 5 9 7 4 0 25 w 0 4 11 15 8 0 38 WNW 0 3 16 12 4 0 35 NW 0 1 10 5 1 0 17 NNW 0 1 13 3 0 0 17 Total 0 33 127 77 19 1 257 Calm Hours not Included above for : Total Period 0 Valid.Hours for this Stability Class for: Total Period 257 Total Hours for Period 2208 A2.4-1

Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2014 -12/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 1 2 6 0 0 9 NNE 1 0 2 4 0 0 7 NE 1 2 0 0 0 0 3 ENE 0 1 1 0 0 0 2 E 0 4 2 0 0 0 6 ESE 0 3 1 1 0 0 5 SE 2 1 0 1 0 0 4 SSE 2 4 4 6 1 0 17 s 0 0 9 5 0 0 14 SSW 0 0 10 6 1 0 17 SW 0 1 8 3 0 0 12 WSW 0 2 13 3 2 1 21 w 0 3 7 12 7 4 33 WNW 1 1 4 10 3 0 19 NW 0 0 3 1 0 1 5 NNW 0 1 1 3 1 0 6 Total 7 24 67 61 15 6 180 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 180 Total Hours for Period 2208 A2.4-2 Site: AEP Cook Period of Record = Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period 10/01/2014 -12/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Direction N NNE NE ENE E ESE SE SSE s SSW SW WSW w WNW NW NNW Total 1-4 0 0 0 0 0 0 0 1 0 1 0 1 1 0 0 1 5 4-8 0 0 3 1 7 5 2 6 3 5 4 3 1 1 1 2 44 Calm Hours not Included above for : Valid Hours for this Stability Class for: Total Hours for Period Wind Speed (mph) 8-13 5 2 0 1 1 5 8 8 22 17 10 14 4 8 6 4 115 13 -19 19 -25 3 0 4 0 0 0 0 0 0 0 2 0 3 0 6 1 5 1 6 0 3 1 6 15 11 23 33 8 13 8 6 5 101 62 Total Period Total Period A2.4-3 > 25 1 0 0 0 0 0 0 0 0 0 2 10 17 3 0 0 33 Total 9 6 3 2 8 12 13 22 31 29 20 49 57 53 28 18 360 0 360 2208 ---------,

Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2014 -12/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 4 26 24 3 3 60 NNE 0 1 17 5 I 5 29 NE 0 12 10 8 5 0 35 ENE 1 3 4 0 0 0 8 E 0 6 7 0 0 0 13 ESE 0 8 8 11 0 0 27 SE I 6 29 26 I 0 63 SSE 0 11 20 46 6 0 83 s I 17 53 55 3 0 129 SSW 0 13 54 72 14 0 153 SW I 1 18 19 5 2 46 WSW 1 6 12 31 9 I 60 w 0 I 20 48 43 10 122 WNW 0 8 19 42 31 4 104 NW 0 2 20 28 17 2 69 NNW I 2 9 17 18 11 58 Total 6 101 326 432 156 38 1059 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 1059 Total Hours for Period 2208 A2.4-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2014 -12/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 2 1 1 0 0 0 4 NNE 1 8 3 0 0 0 12 NE 0 7 5 0 0 0 12 ENE 2 2 5 0 0 0 9 E 0 1 8 1 0 0 10 ESE 1 1 1 3 0 0 6 SE 0 2 9 15 1 0 27 SSE 0 2 5 9 1 1 18 s 1 2 25 11 0 0 39 SSW 1 1 13 3 0 0 18 SW 0 2 0 1 0 0 3 WSW 0 0 1 3 0 0 4 w 0 0 2 2 0 0 4 WNW 0 2 0 3 1 0 6 NW 0 2 5 6 2 0 15 NNW 0 0 13 2 1 0 16 Total 8 33 96 59 6 1 203 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 203 Total Hours for Period 2208 A2.4-5

Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2014 -12/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Clas,s F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 0 0 0 0 0 0 NNE 0 1 3 0 0 0 4 NE 0 2 2 0 0 0 4 ENE 0 0 4 0 0 0 4 E 0 1 4 1 0 0 6 ESE 1 1 3 0 0 0 5 SE 0 1 6 1 0 0 8 SSE 0 1 2 5 0 0 8 s 0 1 3 1 0 0 5 SSW 0 1 2 1 0 0 4 SW 0 1 0 1 0 0 2 WSW 1 1 0 0 0 0 2 w 1 2 0 0 0 0 3 WNW 0 0 0 0 0 0 0 NW 0 1 1 0 0 0 2 NNW 0 0 0 0 0 0 0 Total 3 14 30 10 0 0 57 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 57 Total Hours for Period 2208 A2.4-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2014 -12/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 1 4 0 0 0 5 ENE 2 1 11 0 0 0 14 E 1 3 7 1 0 0 12 ESE 0 4 7 0 0 0 11 SE 0 1 5 2 0 0 8 SSE 0 2 2 1 0 0 5 s 0 1 4 1 0 0 6 SSW 1 0 1 2 0 0 4 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 w 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 1 0 0 0 0 1 Total 4 14 41 7 0 0 66 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 66 Total Hours for Period 2208 A2.4-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 10/01/2014 -12/31/2014 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13-19 19 -25 > 25 Total N 2 7 49 36 3 4 101 NNE 2 10 30 14 1 5 62 NE 1 29 26 9 5 0 70 ENE 5 11 29 0 0 0 45 E 1 24 30 3 0 0 58 ESE 2 26 31 17 0 0 76 SE 3 14 68 56 2 0 143 SSE 3 28 49 81 11 2 174 s 2 26 124 85 4 0 241 SSW 3 20 99 92 15 0 229 SW 1 11 42 32 6 4 96 WSW 3 17 49 50 30 12 161 w 2 11 44 88 81 31 257 WNW 1 15 47 100 47 7 217 NW 0 7 45 53 28 3 136 NNW 2 7 40 31 25 11 116 Total 33 263 802 747 258 79 2182 Calm Hours not Included above for : Total Period 0 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 26 Valid Hours for this Stability Class for: Total Period 2182 Total Hours for Period 2208 A2.4-8 L OFF-SITE DOSE CALCULATION MANUAL CHANGES The Off-Site Dose Calculation Manual, PMP-601O-OSD-001, was not revised during this reporting period. A3.0-l ENCLOSURE 5 to AEP-NRC-2018-35 DONALD C. COOK NUCLEAR PLANT UNITS 1 AND 2 2013 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT, Revision 1 TABLE OF CONTENTS Page Table of Contents 1 I. II. ill. IV. V. VI. VII. vm. Introduction 1 Radioactive Releases and Radiological Impact on Man 1 Liquid Releases 2 Gaseous Releases 2 Solid Waste Disposition 2 Meteorological 3 Offsite Dose Calculation Manual (ODCM) Changes 3 Total Dose 3 Radiation Monitors Inoperable Greater Than 30 Days 4 Noteworthy Conditions Identified in 2013 4 Conclusion 6 LIST OF APPENDICES Title Appendix Al.I 2013 Effluent and Waste Disposal Annual Report -Supplemental Information Al.2 Summary of Maximum Individual Doses: First Quarter, Second Quarter, Third Quarter, and Fourth Quarter 2013 Al.3 2013 Groundwater Protection Initiative (GPI) Sample Data A2.l Hours at Each Wind Speed and Direction: First Quarter, 2013 A2.2 Hours at Each Wind Speed and Direction: Second Quarter, 2013 A2.3 Hours at Each Wind Speed and Direction: Third Quarter, 2013 A2.4 Hours at Each Wind Speed and Direction: Fourth Quarter, 2013 A3.0 Offsite Dose Calculation Manual (ODCM) Changes 1 I. INTRODUCTION This report discusses the radioactive discharges from Unit 1 and Unit 2 of the Donald C. Cook Nuclear Plant (CNP) during 2013. This is in accordance with the requirements of CNP Technical Specification (TS) 5.6.3. The table below summarizes the pertinent statistics concerning the Plant's operation during the period from January 1, 2013, to December 31, 2013. The data in this table and the descriptive information on plant operation are based upon the respective unit's Monthly Operating Reports, Performance Indicators and Control Room Logs for 2013. Parameter Unit 1 Unit2 Gross Electrical Energy Generation 8,111,515 8,696,904 -(Megawatt Hour (MWH)) Unit Service Factor 85.3 88.0 (Percent (%)) Unit Capacity Factor 87.0 89.4 (Maximum Dependable Capacity (MDC)) Net(%) Unit 1 entered the reporting period in Mode 1 at Nominal Full Power (NFP). Small po-wer adjustments were made to facilitate main turbine valve testing throughout the year. The unit performed a normal downpower and was manually tripped on March 27, 2013, entering the refueling outage U1C25. The unit attained criticality on May 18, 2013 and attained NFP on May 24, 2013. On December 13, 2013, a planned downpower to 24% power was performed to support containment glowplug replacement work. The unit returned to NFP on December 16, 2013. The unit exited the reporting period at NFP. Unit 2 entered the reporting period in Mode 1 at NFP. Small power adjustments were made to facilitate main turbine valve testing throughout the year. Unit 2 performed manual reactor trip and entered a forced outage on July 28, 2013 due to a Condensate Heater Bypass Control valve setpoint issue. The unit returned to NFP on August 1, 2013. The unit performed a normal downpower and was manually tripped on October 2, 2013, entering the refueling outage U2C21. The unit attained criticality on November 11, 2013, and attained NFP on November 18, 2013. The unit exited the reporting period at NFP. II. RADIOACTIVE RELEASES AND RADIOLOGICAL IMP ACT ON MAN Since a number of release points are common to both units, the release data from both units are combined to form this two-unit, Annual Radioactive Effluent Release Report. Appendix Al.I through A2.4 of this report present the information in accordance with Section 5.6.3 of Appendix A to the Facility Operating Licenses, as specified in the Technical Specifications, Regulatory Guide 1.21, and 10 CFR Part 50, Appendix I. The "MIDAS System" is a computer code that calculates doses due to radionuclides that were released from the CNP. 1 All liquid and gaseous releases were well within Offsite Dose Calcuiation Manual (ODCM) limits and federal limits. There were no abnormal liquid releases and no abnormal gaseous releases in 2013. The Independent Spent Fuel Storage Installation (ISFSI) impacts are included with Unit 1 and Unit 2 statistics. The ISFSI cask system does not create any radioactive materials or have any radioactive waste treatment systems. Therefore, specific operating procedures for the control ofradioactive effluents are not required. Specification 3.1.1, Multi-Purpose Canister (MPC), provides assurance that there are not radioactive effluents from the ISFSI. Liquid Releases During 2013 there were 90 liquid batch releases performed. The number of liquid batch releases for the four quarters in 2013 was 18, 24, 25, and 23, respectively. Estimated doses (in mrem) to maximally exposed individuals via the liquid release pathways are given in Appendix A 1.2 of this report. Gaseous Releases During the first quarter of 2013 there were two batch releases from Gas Decay Tanks (GDT), one containment purge, and 102 Containment Pressure Reliefs (CPR). During the second quarter there was one batch release from GDTs and 108 CPR. During the third quarter there were four batch releases from GDTs and 119 CPR. During the fourth quarter there was one batch release from GDTs, two containment purges, and 62 CPR. The CPR continue to be listed as batch releases as described in Nuclear Regulatory Commission Inspections 50-315/89017 (DRSS); 50-316/89016 (DRSS) for CNP, dated June 13, 1989. Doses continue to be calculated utilizing continuous criteria as allowed by NUREG-0133. There were a total of eight GDT releases, three containment purges, and 391 CPR gaseous batch releases made during 2013. In calculating the dose consequences for continuous and batch gaseous releases during 2013, the meteorological data measured at the time of the release were used. The estimated doses (in mrem) to maximally exposed individuals via the gaseous release pathways are given in Appendix Al.2 of this report. For individuals that are within the site boundary, the occupancy time is sufficiently low to compensate for any increase in the atmospheric diffusion factor above that for the site boundary. Solid Waste Disposition There were 23 shipments of radioactive waste made during 2013. These included shipments made from the site to various radioactive waste processors for ultimate disposal. 2 III. METEOROLOGICAL IV. Appendices A2.1, A2.2, A2.3, and A2.4 of this report contain the cumulative joint frequency distribution tables of wind speed and wind direction, corresponding to the various atmospheric stability classes for the first, second, third and fourth quarters of 2013. Hourly meteorological data is available for review and/or inspection upon request. OFFSITE DOSE CALCULATION MANUAL (ODCM) CHANGES The ODCM, PMP-6010-0SD-001, was not revised during the report period. V. TOTAL DOSE Section 3.2.5 of the ODCM requires that the dose or dose commitment to a real individual from all uranium fuel cycle sources in Berrien County be limited to no more than 25 mrem to the total body or any organ ( except the thyroid, which is limited to no more than 7 5 mrem) over a period of 12 consecutive months to show conformance with the requirements of 40 CFR Part 190. The maximum cumulative dose to an individual from liquid and gaseous effluents during 2013 was well within the ODCM limits. Measurements using thermoluminescent dosimeters (TLD) at 12 onsite stations indicate that the dose due to direct radiation is consistent with preoperational and current control (background) levels. This is fully evaluated in CNP's 2013 Annual Radiological Environmental Operating Report. The annual dose to the maximum individual will be estimated by first, summing the quarterly total body air dose, the quarterly skin air dose, the quarterly critical organ dose from iodines and particulates (I&P), the quarterly total body dose from liquid effluents, the quarterly critical organ dose from liquid effluents, and the Radiological Environmental Monitoring Program onsite direct radiation TLD data. These quarterly values are summed with the annual Carbon-14 dose and compared to the annual total body limit for conservative reasons. The table that follows here represents the above written description: Dose (mrem) 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr I & p 8.56E-03 1.50E-02 4.53E-02 7.51 E-02 Total Body Air 2.10E-04 2.90E-04 9.80E-04 3.10E-04 Skin 3.40E-04 4.?0E-04 1.60E-03 9.20E-04 Liquid TB 2.99E-02 9.39E-03 2.72E-03 8.12E-03 Liquid Orqan 2.99E-02 9.42E-03 2.72E-03 8.30E-03 C14 (Annual) 2.20E+OO Direct Radiation 0 0 0 0 Total 6.89E-02 3.46E-02 1.02E-01 2.29E+OO Grand Total Dose (Total Body or any other Orqan) mrem 2.50E+OO Annual Dose Limit (mrem) 25 Percent of limit 9.99E+OO 3 l The following data reflects a comparison with 2009 annual dose data (the last year without calculating C-14 dose), 2013 annual dose data, and 2013 annual dose data with C-14 added. This indicates that 2013 was a 'normal' dual unit outage year with respect to radioactive effluents and allows for easier comparison. The table is presented as follows: Annual Dose (mrem) % of limit 2009 2.60E-01 1.04 .. 2013 2.99E-01 1.19 2013 with C-14 2.5 9.99 VI. RADIATION MONITORS INOPERABLE GREATER THAN 30 DAYS There were no release pathways unmonitored for greater than 30 days. VII. NOTEWORTHY CONDITIONS IDENTIFIED IN 2013 During the Fourth Quarter of 2012, an intermittent fault was identified on the CNP 60-Meter Meteorological Tower that resulted in a large number of invalid data hours collected. A Condition Report (2012-2305) was initiated and repair work performed. The issue appeared to be a connection to the Delta Temperature instrumentation. Repairs yielded better data collection results in December2012, however the intermittent fault returned and the system yielded additional invalid data hours during the First and Second Quarters of 2013. Additional repair work was performed when conditions allowed for safe work on the tower, and this resulted in the problem being positively identified as cabling fault grounding out the 10 Meter Delta Temperature instrumentation on the Main 60 Meter Tower. The repairs on the cable and instrumentation were successful at eliminating the intermittent fault and data collection has returned to near 100% valid hours. The meteorological data gathered from the 60 meter tower during valid hours along with data substituted in for invalid hours from a secondary 10 Meter Temperature instrumentation located onsite by our meteorological third party vendor indicate normal weather patterns consistent with historical norms. The updated data was utilized in the dose calculations performed in the MIDAS software to ensure accurate dose assessments. The Joint Frequency Tables attached are taken using the primary instrumentation only as there is no method available in the software to illustrate the data substitution utilized by the vendor. This methodology of data substitution has always been used for any invalid hours, since the usage of MIDAS software at CNP, to ensure the most accurate dose calculations and reporting. The large number of invalid data hours is unusual though, so it is important to clarify that this did not impact the ability to calculate public dose negatively as a process of

data substitution by our vendor already was in place to address any invalid hours. Carbon-14 Supplemental Information for the 2013 Annual Radioactive Effluent Release Report. C-14 has a 5730 year half-life and is a naturally occurring radionuclide produced by cosmic ray interactions in the atmosphere. C-14 is a relatively low energy beta emitter. Nuclear weapons testing in the 1950s and 1960s significantly increased the amount of C-14 in the 4 atmosphere. C-14 is also produced in commercial nuclear reactors, but the amounts produced are much less than those produced naturally, from weapons testing, or coal burning power plants. The inventory of C-14 in Earth's biosphere is about 300 million Curies, of which most is in the oceans. Since the U.S. Nuclear Regulatory Commission (NRC) published Regulatory Guide (RG) 1.21, Revision 1, in 1974, the analytical methods for determining C-14 have improved. Coincidentally, the radioactive effluents from commercial nuclear power plants over the same period have decreased to the point that C-14 is likely to be a principal radionuclide in gaseous effluents. Based on these reasons and a desire to adjust policy to align with international standards, the nuclear industry was required to report, starting in 2010, the quantity and dose impact of C-14 here in the United States. The dose will be reported both with and without C-14 so a comparison to 2009 can be made, keeping in mind the differing standards. The quantity of C-14 released to the environment can be estimated by use of a C-14 source term scaling factor based on power generation (Ref. RG 1.21, Revision 2). A recent study recommends a source term scaling factor of approximately 9.0 to 9.8 Curies/GWe-yr for a Westinghouse Pressurized Water Reactor (Ref. EPRI 1021106 "Estimation of Carbon-14 in Nuclear Plant Gaseous Effluents" December 23, 2010). A scaling factor of 9.4 Curies/GWe-yr was assumed for this report. Using this source term scaling factor and actual electrical generation (in MWH) produced during 2013 results in a site total of 18.03 Curies produced. C-14 releases from PWRs occur primarily as a mix of organic carbon (methane) and inorganic ( carbon dioxide). As a general rule, C-14 in the primary coolant is essentially all organic with a large fraction as gas. Any time the primary coolant is exposed to an oxidizing environment ( during shutdown or refueling), a slow transformation from an organic to an inorganic species occurs. Various studies documenting measured C-14 releases from PWRs suggest an average 80% organic fraction with the remainder being carbon dioxide. This equates to 3.61 Curies released as carbon dioxide which is available for the food pathway through photosynthesis to vegetation. Dose is calculated utilizing the methodology prescribed in RG 1.109, Appendix C with the vegetation dose being the most predominant. A 'p' factor of 0.33 is determined utilizing the 209 hours0.00242 days 0.0581 hours 3.455688e-4 weeks 7.95245e-5 months of batch gaseous releases performed during 2013 and the assumption that 70% of the C-14 released is from gaseous batch releases. A further reduction to the vegetation and leafy vegetable dose is warranted due to the limited growing season in Michigan, which was conservatively limited to nine months. The final results indicated a calculated organ dose from C-14 to a child at the site boundary of 1.74 mrem to the bone and a whole body dose of 0.461 mrem, for a combined total C-14 dose of 2.20 mrem. This is less than the dose limit of 15 mrem/unit to any organ prescribed in 10 CFR 50, Appendix I, and the 40 CFR Part 190 limit of 25 mrem for total body and for any organ ( -::::_75 mrem for thyroid). 5 VIII. CONCLUSION Based on the information presented in this report, it is concluded that CNP Units 1 and 2 performed their intended design function with no demonstrable adverse effect on the health and safety of the general public. Note: This entire document is Revision 1 submitted as "Errata" attached to the 2017 Annual Radioactive Eflluent Release Report per Corrective Action 2017-4835. This new revision completely replaces the previously submitted report. This errata was necessitated due to problems identified with equipment utilized for counting tritium samples dating back to 2013. The alterations changed the overall public dose calculated from 2.48 millirems (9.93% of the 40 CFR190 allowable dose limits) to 2.50 millirems (9.99% of the 40CFR190 allowable dose limits). There were no adverse impacts to public health or safety by this minor change to dose. 6 2013 Effluent and Waste Disposal Annual Report SUPPLEMENTAL INFORMATION Facility: Donald C. Cook Nuclear Plant Licensee: Indiana Michigan Power Company 1 REGULATORY LIMITS 1. 1 Noble Gases The air dose in unrestricted areas due to noble gases released in gaseous effluents shall be limited to the following: 1.1.1 During any calendar quarter, to~ 5 mrad/unit for gamma radiation and~ 10 mrad/unit for beta radiation. 1.1.2 During any calendar year, to~ 10 mrad/unit for gamma radiation and~ 20 mrad/unit for beta radiation. 1.2 Iodines -Particulates 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 effluents released to unrestricted areas shall be limited to the following: 1.2.1 During any calendar quarter to~ 7.5 mrem/unit to any organ. 1.2.2 During any calendar year to~ 15 mrem/unit to any organ. 1. 3 Liquid Effluents The dose or dose commitment to an individual from radioactive material in liquid effluents released to unrestricted areas shall be limited: 1.3.1 During any calendar quarter to~ 1.5 mrem/unit to the total body and to~ 5 mrem/unit to any organ. 1.3.2. During any calendar year to~ 3 mrem/unit to the total body and to~ 10 mrem/unit to any organ. Al.1-1 2013 Effluent and Waste Disposal Annual Report 1. 4 Total Dose The dose or dose commitment to a real individual from all uranium fuel cycle sources is limited to s 25 mrem to the total body or any organ (except the thyroid, which is limited to s 75 mrem) over a period of 12 consecutive months. 2 -MAXIMUM PERMISSIBLE CONCENTRATIONS 2. 1 Gaseous Effluents The dose rate due to radioactive materials released in gaseous effluents from the site shall be limited to the following: 2.1.1 For noble gases: s 500 mrem/yr to the total body and s 3000 mrem/yr to the skin. 2.1.2 For all radioiodines and for all radioactive materials in particulate form and radionuclides (other than noble gases) with half-lives greater than eight days: s 1500 mrem/yr to any organ. The above limits are provided to insure that radioactive material discharged in gaseous effluents will not result in the exposure of an individual in an unrestricted area to annual average concentrations exceeding the limits in 10 CFR Part 20, Appendix B, Table 2, Column 1. 2. 2 Liquid Effluents The concentration of radioactive material released at any time from the site to unrestricted areas shall be limited to 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 2 x 10-4 µCi/ml total activity. Al.1-2 2013 Effluent and Waste Disposal Annual Report 3 AVERAGE ENERGY The average energy (E) of the radionuclide mixture in releases of fission and activation gases as defined in Regulatory Guide 1.21, Appendix B, Section A.3 is not applicable because the limits used for gaseous releases are based on calculated dose to members of the public. Release rates are calculated using an isotopic mix from actual samples rather than average energy. 4 MEASUREMENTS and APPROXIMATIONS of TOTAL RADIOACTIVITY 4.1 Fission and Activation Gases Sampled and analyzed on a 4096 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. 4. 2 Iodines Sampled on iodine adsorbing media and analyzed on a 4096 channel analyzer and HpGe detector. 4. 3 1?9-rticulates Sampled on a glass filter and analyzed on a 4096 channel analyzer and HpGe detector. Sr-89 and Sr-90 analyses are performed by offsite vendor. 4. 4 .. Liquid Effluents Sampled and analyzed on a 4096 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counter. Fe-55, Sr-89 and Sr-90 analyses performed by offsite vendor. Ni-63 is also currently being analyzed by the offsite vendor in response to evaluation of the 10 CFR 61 sample results. Al.1-3 2013 Effluent and Waste Disposal Annual Report 5 BATCH RELEASES 5 .1 Liquid 5 .1.1 Number of batch releases: 18 releases in the l st quarter, 2013 24 releases in the 2nd quarter, 2013 -25 releases in the 3rd quarter, 2013 -23 releases in the 4th quarter, 2013 5.1.2 Total time period for batch releases: 56,988 minutes 5.1.3 Maximum time for a batch release: 2,466 minutes 5.1.4 Average time period for batch release: 633 minutes 5.1.5 Minimum time period for a batch release: 95 minutes 5.1.6 Average stream flow during periods of release of effluent into a flowing stream: 6.93E+5 gpm circulating water Al.1-4 2013 Effluent and Waste Disposal Annual Report 5. 2 Gaseous 'T,*". 5.2.1 Number of batch releases: 105 releases in --the 1st quarter, 2013 109 releases in the 2nd quarter, 2013 123 releases in --the 3rd quarter, 2013 65 releases in the 4th quarter, 2013 5.2.2 Total time period for batch releases: 12,517 minutes 5.2.3 Maximum time for a batch release: 358 minutes 5.2.4 Average time period for batch release: 31 minutes 5.2.5 Minimum time period for a batch release: 7 minutes Al.1-5 2013 Effluent and Waste Disposal Annual Report 6 ABNORMAL RELEASES 6.1 Liquid 6 .1.1 Number of Releases: 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.1. 2 Total activity released (Ci): 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.2 Gaseous 6.2.1 Number of Releases: l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 *--" 6.2.2 Total activity released (Ci): l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 Al.1-6 2013 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES CONTINUOUS MODE [Nuclides Released[ Unit I 1st Quarter[ 2nd Quarter[ 3rd Quarter[ 4th Quarter[ [1. FISSION GASES I H3 XE135m KR85 XE131m XE133m XE133 XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci [Total for Period I Ci 12. IODINES I131 I132 I133 I Ci I Ci I Ci [Total for Period I Ci 13. PARTICULATES MN54 C060 CS137 I Ci I Ci I Ci rTotal fo~ Period I Ci 2. 96E+Ol 2. 96E+Ol

DENOTES SUPPLEMENTAL ISOTOPES 2.76E+Ol 8.00E-03 2.76E+Ol 1. 72E-05 l.84E-10 1. 72E-05 Al.1-7 3.03E+Ol 3.03E+Ol 1. 29E-06 1.29E-06 3.75E+Ol 1.60E-03 5.68E-03 2.43E-03 1.77E-01 l.95E-02 3. 77E+Ol 1. 91E-03 2.47E-06 1. 91E-03 2013 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES BATCH MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! 11. FISSION GASES I H3 AR41 KR85 XE131M XE133M XE133 XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES Il31 Il33 I Ci I Ci !Total for Period I Ci 13. PARTICULATES I

BRBO I

BR82 I Ci I Ci !Total for Period I Ci 8.33E-02 5.51E-01 8.lOE-01 8.27E-02 7.98E-01

DENOTES SUPPLEMENTAL ISOTOPES 1. 85E-02 2.04E-01 5.00E-02 3.95E-04 1. 56E-01 4.29E-01 I. --------Al.1-8 1. 99E-02 3.25E-01 4.04E-01 l.73E-03 3.09E-04 2.98E-01 7.0lE-05 l.05E+OO 4.48E-02 2.60E-01 5.69E-01 3.40E-03 2.37E-01 4.28E-03 l.12E+OO 5.90E-08 5.90E-08 2013 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES Units 1st 2nd 3rd 4th [Est. I Quarter I Quarter I Quarter I Quarter [Total I I 1-I I Error, % I [A. I FISSION AND I [ACTIVATION GASES I [l. [Total Release I Ci I 7.14E-011 4.lBE-011 l.03E+OOI l.28E+OOI 11.6 12. [Average release I Irate for period [uCi/sec[ 9.19E-02i 5.32E-021 l.30E-01[ l.61E-01[ I I I I I I [3.[Percent of 1% Gamma[ 8.38E-031 9.83E-031 3.40E-021 l.19E-021 [applicable limit* I Beta I l.53E-03i 2.07E-03i 7.78E-03i 2.20E-021 I B. I IODINES 11. [Total I-131 I Ci I O.OOE+OOI l.72E-051 l.29E-061 l.91E-031 11.6 [2. [Average release I Irate for period [uCi/sec[ O.OOE+OOI 2.19E-061 l.62E-071 2.40E-041 I I I I I I I 3. I Percent of I % I [applicable limit* I IC. I PARTICULATES [l. [Particulates with[ Ci I [half lives>8 days[ I 0.00E+OOI 6.25E-061 4.63E-071 6.84E-041 I I I I I I 0.00E+OOI 0.00E+OOI O.OOE+OOI O.OOE+OOI N/A I I I I I 12. !Average release 1--I rate for period [uCi/sec[ O.OOE+OOI O.OOE+OOI O.OOE+OOI 0.00E+OOI I I I I I I I 3. I Percent of I % I [applicable limit* I I 4. I Gross alpha I !radioactivity ID. I TRITIUM [l. !Total Release I Ci I I Ci I O.OOE+OOI O.OOE+OOI 0.00E+OOI 0.00E+OOI I I I I I l<l.32E-06i<l.34E-06[<1.35E-06i<l.35E-061 I I I I I I 2.96E+Oll 2.76E+Oli 3.03E+Oli 3.76E+Oll 13.0 12. [Average release I Irate for period luCi/secl 3.81E+001 3.51E+OOI 3.81E+OOI 4.72E+OOI I I I I I I 13. I Percent of I % I [applicable limit* I I 2.17E-02i 2.00E-021 2.17E-021 2.69E-021 I I I I I Applicable limits are expressed in terms of dose. See Appendices Al.2-1 through Al.2-4 Al.1-9 2013 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS CONTINUOUS MODE fNuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CS137 I Ci I Ci l.17E-02 1. 38E-02 BATCH MODE 1.89E-02 2.53E-02 INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CR51 MN54 FE55 C058 C060 NI63 I *KR85 ZR95 NB95 M099 TC99m AGllOm I *XE13lm SB125 CS134 C::Sl-37 I *XE135 I131 I *XE133 I *XE133m I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci 9.19E+02 1. 31E-05 8.35E-05 2.26E-04 3.lBE-04

DENOTES SUPPLEMENTAL ISOTOPES 3.32E+02 1. 36E-05 3.26E-06 3.35E-04 9.90E-05 1.87E-06 9. 72E-05 1. 02E-05 4.63E-05 Al. 1-10 l.05E+03 8.22E-05 1.05E-04 1. 97E-04 1.83E-05 1.86E-04 9.63E-07 2.90E-05 8.24E-03 6.19E-05 2.47E+02 l.42E-06 2.77E-04 9.69E-05 2.37E-06 6.61E-07 4.44E-05 5.40E-05 7.98E-06 2.53E-05 2.82E-05 1.21E-04 3.33E-03 2.37E-05 2013 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES BATCH MODE IA. !FISSION AND I I ~CTIVATION I I PRODUCTS 11. I Total Release 12. !Average diluted I I concentration I lduring period 13. I Percent of Units I Ci luCi/ml I I % 1st 2nd 3rd 4th I Est. I Qriarter I Quarter I Quarter I Quarter !Total I I I I IError,%1 I 3.23E-041 5.60E-041 2.06E-041 6.0SE-041 12.4 8.55E-121 2.07E-lll 3.29E-121 2.SOE-111 I I I I I I I I I !applicable limit I I 1. 7 SE-04 I 2. 82E-04 I 6. 88E-05 I 9. 57E-04 I I I I I I I B. I TRITIUM 11. I Total Release 12. !Average diluted I I concentration I I during period 13. I Percent of I Ci luCi/ml I I % I 9.19E+021 3.32E+021 1.05E+031 2.47E+021 10.1 2.44E-051 1.23E-051 1.68E-051 l.02E-051 I I I I I I I I I !applicable limit I I 2.44E+001 l.23E+OOI l.68E+OOI 1.02E+OOI I I I I I IC. I DISSOLVED AND I !ENTRAINED GASES 11. I Total Release 12. !Average diluted I I concentration I !during period I 3. I Percent of I Ci luCi/ml I I % I 3.18E-041 4.63E-051 8.27E-031 3.33E-031 11.6 I 8.44E-121 l.71E-121 1.32E-101 1.38E-101 I I I I I I I I I !applicable limit I I 4.22E-061 8.57E-071 6.60E-051 6.89E-051 I I I I I I D. I GROSS ALPHA I I RADIOACTIVITY I ITOTAL RELEASE IE. I VOLUME OF WASTE I I RELEASED I F. I VOLUME OF I !DILUTION WATER I I USED DURING I I PERIOD Ci l<l.05E-041<1.40E-041<1.46E-041<1.35E-041 N/A I I I I I I I I I I I Liters! l.36E+071 1.23E+071 1.51E+071 2.49E+071 I I I I I I Liters I I I I 7. 08E+ll I I I I 1. 51E+ll I I I I Al .1-11 8. 97E+ll I I I I 6.47E+lll I I I 2.00 I I 3.48 I A. I FISSION AND I I ACTIVATION I I PRODUCTS Jl. !Total Release 12. !Average diluted I I concentration I !during period J3. !Percent of 2013 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES CONTINUOUS MODE Units I Ci JuCi/ml I I % 1st 2nd 3rd 4th !Est. I Quarter I Quarter I Quarter I Quarter !Total I I I I IError,%1 I O.OOE+OOI 0.00E+OOJ O.OOE+OOJ 0.00E+OOI N/A 0.00E+OOI O.OOE+OOJ 0.00E+OOI O.OOE+DOJ I I I I I I I I I !applicable limit I I O.OOE+OOI 0.00E+OOI O.OOE+OOI O.OOE+OOI I I I I I I B. I TRITIUM Jl. !Total Release J2. !Average diluted I I concentration I !during period I 3. I Percent of I Ci JuCi/ml I I % I 1.17E-021 1.38E-02J 1.89E-021 2.53E-021 22.6 1.74E-11J 1.llE-101 2.27E-111 4.06E-lll I I I I I I I I I !applicable limit I I 1.74E-041 1.llE-031 2.27E-041 4.06E-041 I I I I I JC. I DISSOLVED AND I !ENTRAINED GASES Jl. I Total Release 12. !Average diluted I I concentration I Jduring period I 3. I Percent of I Ci JuCi/ml I I % I 0.00E+OOJ O.OOE+OOJ 0.00E+OOJ O.OOE+OOJ N/A O.OOE+OOI 0.00E+OOI O.OOE+OOJ 0.00E+OOJ I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OOJ O.OOE+OOJ O.OOE+OOI I I I I I I D. I GROSS ALPHA 1

I RADIOACTIVITY t* I II'OTAL RELEASE Ci O.OOE+001<8.94E-081 O.OOE+OOJ<8.94E-081 N/A I I I I I I I I JE. !VOLUME OF WASTE I Liters I 7.73E+06J 1.09E+07J 1.36E+071 2.36E+07J 2.00 I I I RELEASED I I I I I I I IF. JVOLUME OF I !DILUTION WATER I I USED DURING I I PERIOD Liters I I I I 6.71E+11J I I I 1. 24E+ll I I I I Al.1-12 8.34E+lll I I I 6. 23E+ll J I I I 3.48 2013 Effluent and Waste Disposal Annual Report Solid Waste and Irradiated Fuel Shipments Solid Waste Shipped Offsite for Burial or Disposal 1) Type of Waste Unit Estimated amount Estimated Total Error, % a) Spent resins, filters, sludge, m3 1.68E+01 1.00E+OO evaporator bottoms, etc. Curies 2.80E+01 3.75E+OO b) Dry compressible waste, m3 5.78E+02 1.00E+OO contaminated equipment, etc. Curies 2.81E+OO 6.48E+OO c) Irradiated components, control m3 Curies rods, etc. d) Other (contaminated soil) m3 Curies 2) Estimate of Principle Radionuclide Composition a) H-3 49% Co-58 9% Sb-125 2% Cs-137 i 1 % Mn-54 0.5% Co-60-13 % Cs-134 0.5% Fe-55 12 % Ni-63 12 % Ni-59 1% b) Ni-59 0.5 % Co-58 1 % Sb-125 1% Mn-54 0.5 % Co-60 46% Zr/Nb-95 1% Fe-55 36% Ni-63 13 % Cs-137 0.5% C-14 0.5% d) 3) Solid Waste Disposition No. of Shipments Mode of Transportation Destination 16 Truck Memphis, TN 3 Truck Oak Ridqe, TN 4 Truck Erwin, TN 4) Type of Containers used for Shipment: Containers used are excepted packages, Type A, Sea Land, metal boxes, drums, tankers, and hi h inte rit containers HICs). 5 Solidification A ent: There were no solidifications erformed durin this report period. Al.1-13 2013 Effluent and Waste Disposal Annual Report Yearly Release Rates GASES Fission and Activation Gases Total Release 3.44E+OO Curies Average Release Rate 1.09E-O 1 µCi/sec % of Applicable Limits

y 1.60£-02 % j3 8.35£-03 % Iodines Total I-131 Release 1.93E-03 Curies Average Release Rate 6.06£-05 µCi/sec % of Applicable Limit* 6.9IE-04 % .. Particulates Total Release 0.00 Curies Average Release Rate 0.00 µCi/sec % of Applicable Limit* 0.00% LIQUIDS Fission and Activation Products Total Release 1.69£-03 Curies --Average Diluted Concentration 1.44E-11 µCi/ml % of Applicable Limits

Total Body 1.1 IE+OO % **,. Organ 3.34£-01 %

Applicable limits are expressed in terms of the annual 10 CFR 50, Appendix I, dose limits. Al.1-14 Site Boundary and Nearest Residence Listing The .following distances were used in the calculation of the maximum** individual doses: Sector Direction Boundary (Meters) Nearest Residence (Meters) A N 651 659 B NNE 617 660 C NE 789 943 D ENE 1497 1747 E E 1274 1716 F ESE 972 1643 G SE 629 1640 H SSE 594 964 J s 594 997 K SSW 629 942 Al.1-15 Summary of Maximum Individual Doses First Quarter 2013 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 2.99E-02 Child Receptor 1 l.99E+OO l.5E+O . Liquid GI-tract 2.99E-02 Child Receptor 1 5.98E-Ol 5.0E+O *Noble Gas Air Dose 4.19E-04 Any 629 (SE) 8.38E-03 5.0E+O (Gamma-1mad) Age Noble Gas Air dose 1.53E-04 Any 629 (SE) 1.53E-03 l.OE+l (Beta-mrad) Age Iodines and Total Body 8.56E-03 Child 659 (N) l.14E-Ol 7.5E+O Particulates Al.2-1 Summary of Maximum Individual Doses Second Quarter 2013 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid TotalBody 9.39E-03 Child Receptor 1 6.26E-01 l.5E+O ...... Liquid Liver 9.42E-03 Child Receptor 1 l.88E-01 5.0E+O Noble Gas Air Dose 4.92E-04 Any 651 (N) 9.83E-03 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 2.07E-04 Any 651 (N) 2.07E-03 1.0E+l ,.* (Beta-mrad) Age Iodines and Thyroid 1.50E-02 Child 659 (N) 2.00E-01 7.5E+O Particulates ~,.-, Al.2-2 Summary of Maximum Individual Doses Third Quarter 2013 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 2.72E-02 Child Receptor 1 l.82E+OO l.5E+O Liquid Liver 2.72E-02 Child Receptor 1 5.45E-01 5.0E+O Noble Gas Air Dose 1.70E-03 Any 651 (N) 3.40E-02 5.0E+O (Gamma-1mad) Age Noble Gas Air dose 7.78E-04 Any 651 (N) 7.78E-03 l.OE+l (Beta-mrad) Age Iodines and Total Body 4.53E-02 Child 659 (N) 6.04E-01 7.5E+O Particulates Al.2-3 Summary of Maximum Individual Doses Fourth Quarter 2013 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT -ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) .. , ' (To'"'.ard) LIMIT QTR Liquid Total Body 8.12E-03 Child Receptor 1 5.42E-Ol 1.5E+O Liquid Liver 8.30E-03 Child Receptor 1 1.66E-Ol 5.0E+O Noble Gas Air Dose 5.94E-04 Any 594 (SSE) 1.19E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 2.20E-03 Any 629 (SSW) 2.20E-02 l.OE+l (Beta-mrad) Age Iodines and Thyroid . 7.51E-02 Child 659 (N) 1.00E+OO 7.5E+O Particulates .. Al.2-4 2013 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD '*])a~e*.** ...... *.****.*J[M.:~~~;l[t:-,::-_::MWjS~l~~P.JF~:z*:*,-Jf~-24~*-~i~;'r~~5*.j~-.-.:*~'-) _oi/0412013 ** I **--* **. ~. . ,-*-,....-""**~"'"' ,-********~r~ ~-~*-*--*,-~ , .. .,,*=*******-** re**,*** T":'*-c,p* i ;01/28/20@:'.'.J C.,"'-.=**"'* 02/15/2013 :",' I 0212512013 * .1 ,.-,*-~-***-****, ' * *' .* ~.-............ ., *-'**** ,,.,-' *.. ,. j 03/21/2013 r 0312sno 131 ........ ----~-*-~*-**--*-.~~-~ ~-***--*----***-~ 03/30/2013 . *, LJ)4/27/2QB 'J , .. ,~ . .c .. c ....... ~., L<::L1'.D . _ 3 f'<kLD., , ' 1; <1.;J,D -~:J ,.~==:.:., ........ , .... ,,~,, ..... ~.~., 05/0J/20.13 ';;<LLp <LLD-~ .. <LLD{ ;_05/31/2013 '**. 07/09/2013 * \ l0/14/~Q.IAc:J: ' 10/15/201:f,, '"' ;:io/2412.013***.1 ' 11/22/2013 ; J2/Q2/2013_ : ""*'****************** .12/03/2013' ,: ' H:2106120,13 ~-,*----*-*-*-*......,,, *----**-***************** l:M\V~Z~~J I ~~260 Arr:-'.':'*,ij L .*: i:::iw::~~0) i(~:' *'.,;l t ;~J-2~ f:'~~:1:~J 01/07/2013 . , .. *.. . <LLD f Ol/28/2Ql3;_i:_<:LLD; *_* i [<LLD :::=;[<LLDJ .. J. <LLD . ;;;:l: <LLb,. j' <LriD *.. **.**** ;:<:Ci .. :p,_,, .:,.,;.* **,.~'" .. ""'*"'=*' 02/25/2013. <LLD*'., <LLD <LLD <LLD * ', <LLD <LLD *<LLD* : fo3/28!2013* Jr.<LI.,D * .i [.<LLD __ ,.,1f<LLI>/ .li_<Ll,,D .. ,CJ; <LLl:L _j; <LLD., ]L<LLD. '** ..... *1 , 04/02/2013 . ,<LLD i c04/27/2013_ i! <LLD< _ J<Ll.,D _:_~1 [~~R~' .... Ji <LLD ____ }] ;,<LLD __ : :_<L~D ... : i_<LLD,_ <! ;,05/31/2013 .<LLD . <LLD ... * * <LLD:. <LLD , <LLD 10/14/2013 f10/24/1013 j r<;LLD . l I <L1D. . [?LLD ***** .. .J f <f,LI> ' iL::'.1:'~!,:-g,'!c( . 11/2272013 : "* "'<;LLD '*' <LLD * . <LLD : 1_ .12/02/2013 .* .J [~:~ :::. , .*. ' -"'-'-~*-*-*---"*"" '*"'"-"""-***--,.,

12/06/ibn '* <LLD * <LLD (Note: Wells MW-22 through MW 27 are multi-port wells installed in the Fall of 2009, with three sample points placed at different depths. S= Shallow M= Middle D= Deep.) (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al_.3-1 2013 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD L!!aJe> ,. ~wSG4-";};J[stfg;"'.?c:*J~-4'. <::. :;;_SG-5, .: ;row~,1} .. ':JVl)V-~O~lf MW-~1-... *,[§~U).Li 01/l 8/'.?0'i3 '. . . .. ' <(LP; . . . . r. .................. * ! ;-*** .... *-* .. * ... , ........ -... , .............. , *~*, .. <*."<**: ,.,,:.,,/7'0::?"Z":~ .. .. UW25/20l3_j L <LLD.*:. :J L <LLD;::> ... 1 L <q;;p* .'::: J ~-*-~~-~~-* >,;,.,;...,.c.~.~~-~ ~~---*~., .. = . 01/28/201'3 t 02/15/2013 . ! ,c,,,...:**c:c:,**,*-:"""" 0:2/28/201:3

i . 0}/2 lt2013 ..J , ............................ , 03/31/2013 ; : <LLD : *. . r 0412812013 J t <LLD . 1:. <LLD , : <LLD ~r <LLD"'* ,. , .. _ . ...... . .. :* <tLrt'. .. *. '1 L <ELD, hi._ ...... ... ---***-~ , 04/30/2013** * .,* . ,.;, '. '* <;:Lt;DY. 1

0'5/07/2013 j i/,Ci/ ... ,.,.:.~ .*. C, .. ,.,, ** C .. , 05/08/20i3. *. ;,:5LLD . ;,.~LLD ... , .. :<tLD;'.s' .. : '..<LLDL .. *: L Q7/IOJ,2(rt3 J [<LLD'Y. **] !<LLD c,> I !<LLD /1 [<ULJ10j "'-,...,,,., .......... ,,"'_...,.,\ .... :;:;,..--::::::::.,c. .. ~., i'bii 4/2013 f)J/04/20 Ji! ] [<Lim'.> *\*i [<LED f ' 1 c__c:::.;;;-,.;:~"--' ll/05/20lp' ,. t-1210212op J ""'""=""'*=~,.., .

t2/03./2Q 13 * : . U+t.!J~o.11,*J ,~ .... ,,,. .. -.... ,_., ,-....... ...... (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma: results above LLD will be additionally flagged and documented in the analysis section.) Al.3-2 2013 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection = LLD i_Dat( .. ;3, 'J[W:9~: :~;rw-105:'7ci'1[w:u,,pf .. 11,w::fi ,*m:3r:w33""' ,j;~ilW~_f4:~*,_1Lwa:::~;J). *1iow~F . .J *\Jl/07/2013: i;, . . .. <LLD . :> ** n."***** *' * ... ,* ... ,>f;*., C **** ** .,,' LO l'l08/2013 * *.] '"'c:,:-'-"'-"""'"**c'° ~*---.... *---"-' """-'-~---***-~ :,o 111812013

I Oli28/2013-:l ~-,-* .. , .................... . ;~*~~~*,.,,V ""n**m-0,m~ *, .. ,_,,_,,,.,,,,.,,,.,., ,'01/29/2013 ', . . . r 0211s1201D ,-----7'< ** ............ ..... . 02/28/2013 . LO)j21f20;}'3 ; ;**-----~'-*=""-' = ........ .... 03/30/2013 , ... ,. . .

i 0313)}2013 ..

l.' *-*"*" ,, * ,, .. .->.n,nrn-. ******* -~~-~* <.>, .. ,,,,,,.-. .... '""'""' '" *' ,; .04/27/2013 ! 04/28/2013 *. . ~<>.. *~~*** '-""--~-,. -,n-.,n. *~ L.,,C,,,C....,"'-----.. --,* 04/30/2013 * [05/07/26Jf'j ' 05/08/2013 . iJ)5jOQ/2ftJ:~.* ..l ~<Ll,D . ;;,J 07/09/2013 [,07tJ.2/2013 *_ \ c.. .. ;.;.. .... ,,,:: .... ;,;..c:_., l <LLD'> *:71 .. _______ .... , 07/23/2013 r 1011412013 * , L.~ ..... *-*****-**** *~---**~-1* 1,0/15/2013' Lll/0412Qb 1 ............................. -, . 11/05/2013 [l2/02/2Ql3 i .*.. 12/03/2013 ! 12117/2013:1 ~~c*-* -,* u*~ (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-3 2013 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD === ..... i.C.;;:/M;itc,ii ~Wi:18:<d t9JY+ti;G~ \.-:.,, ... .:..c:a,i~= c.,,.c.c ........ **. ,_.,, ~JCc.C,iCCiL.,c_:,J .f;;:::.:=:c;,;.,;,..,&&i *ro~tio!4of~;yy :;;:;:-;;,~~;:;:;; ,,*,"*"**"" ,, ... ,, .... , .... ,,,,. 1'12/02/20'13:i l,~-~--*-*=*"'*~-*--:,_;r,;;o;;,,;;=,;;;;r,;,,;i1-,., *.. :,J "'*-*&&'~'*'"'*" t~i;;~~;:~:?~~;:;r;~~)lEf~~~~~1~ (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-4

1 2013 GPI Sample Data Analysis of the Sample Data The Groundwater Protection Initiative (GPI) Sample Data for 2013 indicates no groundwater contamination in excess of the reporting threshold of2.00E-5 uCi/mL for tritium. Gamma spectroscopy was performed on all Radiological Environmental Monitoring Program wells quarterly. Those results are not actual GPI results so are not included in the ARERR, but are part ofCNP's 2013 Annual Radiological Environmental Operating Report. There were no positively identified radionuclides from plant effluents detected in any of the GPI well samples. The LLD value used for tritium counting of the samples varied between 9.42E-7 and 9.63E-7uCi/mL, depending on which scintillation counter was used. This is well below the required maximum LLD value of2.00E-6 uCi/mL per theODCM. While no tritium values were found above LLD for 2013, values found above the LLD are not abnormal, unexpected, or inconsistent with past sampling history. The samples observed above LLD historically were expected results from the release oftritiated water into the Absorption Pond, a licensed pathway and part of plant design, or the result ofrecapture deposition of tritium from licensed radioactive gaseous release points. The 2013 results were expected considering the reduction in tritium released to the Absorption Pond and a reduction in rainfall experienced. Wells located inside the Protected Area of the plant are subject to recapture deposition of tritium and may show occasional sample results above LLD values following rainfalls and snow melt. The results observed in 2013 continue to reflect normal expectations and behaviors as they relate to recaptured tritium for the weather conditions observed in 2013. All gamma samples taken in support of the GPI were less than detectable. The sample data indicates that no radioactive spills or unidentified leaks have occurred in 2013 impacting groundwater. The sample results indicate proper well placement to ensure the protection of the groundwater and early identification of any abnormal conditions involving groundwater. This is validated by the demonstrated ability to monitor percolation from the Absorption Pond and recaptured tritium in precipitation, with flow direction and behavior acting as described in the plant licensing documents. Al.3-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 01/01/2013 -03/31/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) JYincU>ir.ection L-4 4_,._8 8_ * .J.3 13_,,_19 _19_.._25 ~25 Total N 0 0 1 2 0 0 3 NNE. 0 0 0 0 0 0 0 -NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 -ESE 0 1 0 0 0* 0 -l SE 0 1 0 0 0 0 1 SSE 0 1 1 0 0 0 2 s 0 0 1 3 0 0 4 SSW 0 0 0 0 0 9 0 SW 0 0 0 4 4 0 8 i WSW 0 0 2 0 0 0 -2 w 0 0 2 4 0 3 9 WNW 0 0 0 2 0 0 2 -NW 0 0 0 .g 0 0 9 NNW 0 0 0 1 0 0 1 '.fotal 0 3 7 25 4 3 42 Calm Hours not Included above for : Total Period 1 Valid Hours for tltis Stability Class for: Total Period 42 -Total Hours for Period 2160 A2.1-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2013 -03/31/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) J\'jndDirection L,A 4.,,,8 s_~_.13 13.:-.. 19 19.,,_25 >: .. 25 Total N 0 0 1 0 0 0 1 NNE 0 0 0 0 0 0 0 -NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 1 5 0 0 0 6 -ESE 0 3 1 0 0 0 4 SE 0 1 0 0 0 0 1 SSE 0 1 0 0 0 0 1 s 0 0 1 1 0 0 -2 SSW 0 0 0 0 0 0 0 SW 0 0 1 6 0 0 7 WSW 0 0 0 1 0 0 -l w 0 0 1 3 0 1 5 WNW 0 1 1 8 2 0 12 -NW 0 0 1 l 0 0 2 NNW 0 0 0 2 1 0 3 '.fotal 0 7 12 22 3 l 45 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 45 '.fotal Hours for Period 2160 A2.1-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 01/01/2013 -03/31/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) !£ind Direction 1.,4 4.,8 8.-13 13_-,19 19.,25 >,_25 Total N 0 0 0 2 0 0 2 NNE 0 1 3 0 0 0 4 -NE 0 2 0 0 0 0 -2 ENE 0 1 1 1 0 0 3 E 0 1 3 0 0 0 4 -ESE 0 4 0 l 0 0 -5 SE 0 0 1 0 0 0 1 SSE 1 1 3 0 0 0 5 s 0 1 I 4 0 -1 7 SSW 0 0 0 1 0 0 1 SW 0 0 0 2 3 0 5 WSW 0 l l -3 3 0 8 w 0 0 2 7 3 3 15 WNW 0 0 2 2 8 0 12 NW 0 2 3 4 l 0 -10 NNW 0 3 1 0 0 0 4 '.fotal l 17 21 27 18 4 88 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 88 Total Hours for Period 2160 -A2.1-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 01/01/2013 -03/31/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1.,,4 Ll .s~ 13 13~-19 ~. .:,;. 25 .Total N 1 0 9 20 0 0 30 NNE 0 4 8 1 0 0 13 ,NE 0 5 7 .0 .0 _O 12 ENE 2 12 2 1 0 1 18 E 0 7 5 5 3 0 20 ,ESE 1 .3 11 6 4 0 :25 SE 0 8 12 9 0 0 29 SSE 1 8 10 2 2 0 23 s 0 J J6 _6 2 _2 XI SSW 2 1 19 14 2 1 39 SW 1 2 12 29 5 0 49 WSW 0 0 J3 21 18 6 .58 w 1 1 13 39 36 13 103 WNW 1 2 19 48 52 11 133 cNW 0 J 9 4.5 _2J 6 2 NNW 1 1 11 16 4 0 33 Total ll 56 176 26.2 J49 40 694 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 694 *ntaLRo.urs for Perfod .2:160 A2.1-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction. Total Period Period of Record= 01/01/2013 -03/31/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) .Wind.Direction J_.,,,4 A .*. 8 ,&JJ_ J3 *. 19 _19_,,_25 Total N 1 8 7 3 0 0 19 NNE 2 2 1 0 0 0 5 NE 0 5 4 J 0 0 lO ENE 0 2 9 8 1 2 22 E 0 4 2 0 1 I 8 iES.E 0 .2 3 2 0 0 7 SE 0 4 9 4 3 0 20 SSE 0 I 10 5 4 1 21 s .1 .1 12 .13 7 0 :34 SSW 0 1 7 5 7 0 20 SW 0 3 6 4 9 1 23 WSW 0 0 .3 .0 0 J 4 w 1 2 6 0 3 1 13 WNW 0 I 9 9 1 0 20 :NW 0 3 4 4 l 0 :l2 NNW 0 2 2 2 0 0 6 T.o.tal 5 41 94 60 31 7 244 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 244 TotaJJfour.s .fo.r P..e.r.iod 2.160 ,A2.1-5 Site: AEP Cook Joint Frequency Distrnbution Hours at Each Wind Speed and Direction Total _Period Period of Record = 01/01/2013 -03/31/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind.Direction :l.s-4 .*L~B ,8-eJ3 .13. 19 >: .. 25 ,Total N 0 2 0 1 0 0 3 NNE 0 2 0 0 0 0 2 NE 0 :1 0 0 0 0 :1 ENE 0 1 0 0 0 0 1 E 0 0 0 0 0 0 0 :ESE 0 _l _l _l 0 0 :3 SE 1 1 1 1 0 0 4 SSE 0 1 1 1 0 0 3 s 0 2 J :1 0 0 4 SSW 0 0 1 2 0 0 3 SW 0 0 1 0 1 0 2 WSW .0 .1 .0 .0 :1 0 :2 w 0 1 0 0 0 1 2 WNW 0 1 1 0 0 0 2 NW 0 0 J 0 0 0 -] NNW 0 1 0 0 0 0 1 1'.o.tal J 15 _8 7 2 :1 :34 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 34 Tota.I :Hou.r.s :fo_r :Pe.r.io.d 2J60 A2.1-6 Site: AEPCook Joint Frequemcy Distribution Hours at Each Wind Speed and Direction Total Per:iPd Period of Record = 01/01/2013 -03/31/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind_Direction =1-, 4 :4-~8 _8"13 13~-19 ,l!t,25 Total N 0 1 0 0 0 0 1 NNE 0 1 0 0 0 0 1 NE J 0 0 0 0 0 :1 ENE 1 3 0 0 0 0 4 E 1 2 0 0 0 0 3 ,ESE 0 0 D D D D 0 SE 0 1 6 0 0 0 7 SSE 0 2 6 0 0 0 8 s J J J 0 0 0 :3 SSW 0 1 0 0 0 0 1 SW 0 0 0 0 0 0 0 WSW 0 D J 0 D 0 :1 w 0 1 1 0 0 0 2 WNW 0 0 0 0 0 0 0 NW 0 0 3 0 0 0 :3 NNW 0 0 0 0 0 0 _o To.ta! 4 l3 ]8 0 0 0 35 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 35 ~ntal :Houn; for:P_e_rfod :2:160 ,A2.1-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 01/01/2013 -03/31/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) .Wind.Direction 1-~.4 4..=-8 8-_13 13.~ 19 19-25 > 25 X2!l!! N 2 11 18 28 0 0 59 NNE 2 10 12 1 0 0 25 NE J J3 JJ J 0 0 26 ENE 3 19 12 10 1 3 48 E 1 15 15 5 4 1 41 ESE :1 J4 :1.6 :10 4 0 45 SE 1 16 29 14 3 0 63 SSE 2 15 31 8 6 1 63 s 2 6 ,33 :28 9 3 BJ SSW 2 3 27 22 9 1 64 SW 1 5 20 45 22 1 94 WSW 0 :2 c20 25 c2::J. 7 76 w 2 5 25 53 42 22 149 WNW 1 5 32 69 63 11 181 NW 0 6 21 63 23 6 U9 NNW 1 7 14 21 5 0 48 T.otal c22 :1:52 336 403 2:13 :5.6 :1:1_82 Calm Hours not Included above for : Total Period 1 Variable Direction Hou~s for: Total Period 0 Jnv.alid Hour.s for: Tota.I :Pe.r.iod 977 Valid Hours for this Stability Class for: Total Period 1182 Total-H.o.ur.s _for ,P.e1io.d .2J60 Hours are not adjusted to Daylight Savings Time :A2-.1-8 Site: AEP Cook Joint Frequency DistR""ibution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2013 -06/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1 "-4 4"8 8---13 13 -19 19-25 >25 Total N 0 3 14 21 7 0 45 NNE 0 1 1 0 0 0 2 -NE 1 6 5 0 0 0 -12 ENE 3 4 5 1 0 0 13 E 0 4 7 3 0 0 14 -ESE 1 3 6 3 0 0 13 SE 2 5 7 2 0 0 16 SSE 0 6 11 1 0 0 18 s 1 1 10 24 1 0 -37 SSW 0 0 2 0 0 0 2 SW 0 5 13 8 1 0 27 WSW 0 6 -16 3 0 0 -25 w 2 13 12 0 0 0 27 WNW 0 14 7 1 0 0 22 -NW 0 14 19 7 2 0 NNW 0 19 54 12 I 0 86 'Total -10 104 189 86 12 0 40-1 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 401 1'otal Hours-for Period 2184 A2.2-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction

Total Period Period of Record = 04/01/2013 -06/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) .:Wind.Direction L,..4 4-8 8-13 13-19 19-25 >.25 Total N 0 1 4 0 0 0 5 NNE 0 0 1 0 0 0 1 NE 0 0 .2 0 0 0 -2 ENE 0 0 0 0 0 0 0 E 0 1 1 0 0 0 2 ESE 0 0 4 1 0 0 5 SE 0 1 1 1 0 0 3 SSE 0 1 2 1 o. 0 4 s 1 1 2 8 0 0 12 SSW 0 1 4 2 0 0 7 SW 0 1 6 1 0 0 8 WSW 0 1 0 2 0 0 3 w 0 2 1 0 0 0 3 WNW 1 1 0 0 0 0 2 "NW 0 1 0 0 0 0 1 NNW 0 1 4 3 2 0 10 '.fotal 2 13 32 19 -2 0 68 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 68 -Total-Hours *for-Period 2184 A2.2-2 Site: AEP Cook Joint Frequency Distiribution

Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2013 -06/30/2013 Elevation: Speed: SPD60M Direction: DIR.60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) WindDirection 1-4 4-8 8-13 13-19 19--25 >: 25 Total N 1 2 5 0 2 0 10 NNE 0 2 1 0 0 0 3 NE 0 l 1 0 0 0 2 ENE 1 3 3 0 0 0 7 E 0 1 3 0 0 0 4 ESE 0 0 2 0 0 0 2 SE 1 2 3 0 0 0 6 SSE 0 0 0 0 0 0 0 s 0 1 2 7 2 0 12 SSW 0 1 4 3 0 0 8 SW 0 1 1 2 0 0 4 WSW 0 ,1 -2 0 0 0 -3 w 0 4 0 1 0 0 5 WNW 0 1 0 1 0 0 2 *NW 0 3 3 0 1 0 7 NNW 0 4 3 2 0 0 9 !fotal 3 27 33 16 5 0 84 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 84 !J'otal-Hours *for Period 2184 *A2:-2-3 Site: AEP Cook Join¢ F:requency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 04/01/2013 -06/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind.Direction 1 ~.4 4--_8 8--13 13~-19 .19-25 >--25 Total N 1 5 10 8 2 0 26 NNE 0 1 4 1 0 0 6 NE 0 1 4 2 0 0 7 ENE 2 0 2 3 2 0 9 E 0 1 5 1 7 2 16 *ESE 0 1 6 3 0 0 10 SE 0 1 10 0 0 0 11 SSE 1 3 6 9 0 0 19 s 2 1 14 22 3 .0 42 SSW 0 3 7 5 0 0 15 SW 2 3 7 10 2 4 28 WSW 0 6 4 5 1 1 -17 w 2 6 5 2 2 0 17 WNW 1 3 2 0 2 0 8 -NW 3 4 1 7 6 0 2*1 NNW 0 5 8 4 1 2 20 Total 14 44 95 82 28 9 -27'2 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 272 Total-Hours for-Period 2184 A2.2-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record "." 04/01/2013 -06/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph.) Wind Direction 1.4 4~.8 8-13 13-.19 19-25 >-25 Total N 0 4 15 1 1 0 21 NNE 0 3 15 0 0 0 18 NE 1 4 10 0 0 0 1S ENE 0 3 11 1 0 0 15 E 0 6 11 5 5 1 28 ESE 0 5 13 12 1 0 31 SE 1 1 6 2 0 0 10 SSE 1 1 16 19 2 0 39 s 0 1 15 14 2 0 32 SSW 1 2 12 4 1 0 20 SW 0 5 7 3 5 0 20 WSW 0 2 6 2 -1 0 1 w 0 3 4 1 1 0 9 WNW 1 1 0 0 0 0 2 NW l 5 6 4 1 0 17 NNW 1 5 6 2 0 0 14 !Total 7 -51 1-53 70 1 -302 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 302 '.J'otal-Hours-for-Period -2184 A22-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2013 -06/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) .Wind-Direction 1-4 4"8 8 ,-13 13.-19 19-25 >-25 -Total N 0 3 1 1 0 0 5 NNE 0 4 4 0 0 0 8 NE 0 2 10 1 0 0 -13 ENE 0 7 9 2 0 0 18 E 0 2 11 3 0 0 16 ESE 1 3 12 l 0 0 -17 SE 1 2 6 0 0 0 9 SSE 1 1 6 5 1 0 14 s 0 1 3 4 0 0 8 SSW 0 3 1 0 0 0 4 SW 2 1 1 0 0 0 4 WSW 0 -1 3 0 0 0 4 w 0 0 3 0 0 0 3 WNW 1 2 0 0 0 0 3 -NW 0 1 1 0 0 0 2 NNW 1 3 0 0 0 0 4 ~otal 7 36 7-1 17 -1 0 1-32 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 132 Total -Hours *for-Period 2-184 -A2c2-6 Site: AEP Cook Joint Frequency Distiribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2013 -06/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind-Direction 1--4 4-,8 .8-~-13 13--19 .19-25 :::. .. 25 Total N 1 1 2 1 0 0 5 NNE 1 6 6 1 0 0 14 NE -l 6 -1 0 0 0 8 ENE 2 3 10 2 0 0 17 E 0 8 10 5 0 0 23 -ESE -3 3 8 1 0 0 5 SE 2 3 7 1 0 0 13 SSE 1 6 7 2 0 0 16 s 5 3 4 0 0 0 -12 SSW 1 1 4 1 0 0 7 SW 2 4 4 0 0 0 10 WSW 0 4 1 0 0 0 -5 w 0 0 1 0 0 0 1 WNW 4 1 1 0 0 0 6 -NW 0 4 1 0 0 0 5 NNW 2 1 0 0 0 0 3 !J'otal ~5 -54 67 14 0 0 160 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 160 Total-Hours for-Period .g_-184 A2.-2-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 04/01/2013 -06/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind.Direction 1-4 4-.8 8.-.13 13 ~J9 19 .. -25 > 25 Total N 3 19 51 32 12 0 117 NNE 1 17 32 2 0 0 52 -NE -3 20 33 3 0 0 59 ENE 8 20 40 9 2 0 79 E 0 23 48 17 12 3 103 -ESE 5 15 51 -21 I 0 93 SE 7 15 40 6 0 0 68 SSE 4 18 48 37 3 0 110 s 9 9 50 79 8 0 lS5 SSW 2 11 34 15 1 0 63 SW 6 20 39 24 8 4 10'i WSW 0 1 32 1-2 1 68 w 4 28 26 4 3 0 65 WNW 8 23 10 2 2 0 45 -NW 4 32 31 18 -10 0 95 NNW 4 38 75 23 4 2 146 Total 68 -3Q9 640 304 68 10 14-19 Calm Hours not Included above for : Total Period 0 Variable Direction Hours for: Total Period 0 -Invalid Hours for: Total-Period 765 Valid Hours for this Stability Class for: Total Period 1419 Total .Hours for Period -2184 Hours are not adjusted for Daylight Savings Time A:2.2-8 Site: AEP Cook Joint Frequency Distrillmtion Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2013 -09/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) .Wind Direction 1-4 4-8 8-13 13-19 19---25 >-25 Total N 1 2 19 19 3 0 44 NNE 0 3 1 2 1 0 7 -NE 2 10 -10 4 0 0 -Q6 ENE 2 7 9 0 0 0 18 E 2 5 7 0 0 0 14 -ESE 0 14 9 0 0 0 23 SE 0 21 15 0 0 0 36 SSE 0 6 24 3 0 0 33 s 0 .12 12 6 0 0 30 SSW 0 2 2 0 0 0 4 SW 0 15 37 19 I 0 72 WSW 0 18 27 8 1 0 54 w 1 26 17 7 0 0 51 WNW 3 35 18 0 0 0 56 -NW 1 l3 7 6 0 0 27 NNW 0 14 96 38 4 0 152 !fotal 12 203 310 112 lO 0 647 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 647 Total Hours for-Pel'iod 2208 A2.3-1 Site: AEP Cook Johnt FD-"equ.ency Distribution. Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2013 -09/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 >-25 Total N 0 1 3 1 1 0 6 NNE 0 0 2 0 0 0 2 -NE 0 0 2 I 0 0 -3 ENE 0 0 1 0 0 0 1 E 0 2 0 0 0 0 2 ESE 1 2 1 0 0 0 4 SE 0 0 2 0 0 0 2 SSE 0 2 3 0 0 0 5 s 0 2 7 2 0 0 l1 SSW 0 2 0 0 0 0 2 SW 0 3 6 1 0 0 10 WSW 1 3 1 1 0 0 6 w 2 1 0 0 0 0 3 WNW 1 1 3 1 0 0 6 *NW 0 0 1 1 0 0 2 NNW 0 3 2 1 0 0 6 Total 5 22 34 9 1 0 71 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 71 Total Hours for Period 2208 A2.-3-2 Site: AEP Cook Joil!!t Freqll!ency Dlistribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2013 -09/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) -Wind Direction l-4 4-8 8-13 13-19 19--25 >-25 Total N 0 3 8-3 0 0 14 NNE 1 0 0 0 0 0 1 NE 0 2 1 0 0 0 3 ENE 0 1 1 0 0 0 2 E 0 1 0 0 0 0 1 -ESE 0 0 0 0 0 0 0 SE 1 1 1 1 0 0 4 SSE 0 4 2 0 0 0 6 s 0 0 5 0 0 0 s SSW 0 7 1 0 0 0 8 SW 1 2 4 3 0 0 10 WSW 0 2 1 0 0 0 3 w 1 0 1 0 1 0 3 WNW 0 3 0 1 0 0 4 -NW 0 2 l 1 0 0 4 NNW 0 1 4 0 0 0 5 Total 4 29 30 9 1 0 73 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 73 Total Hours for Period 2208 A2.3-3 Site: AEP Cook Joint Fi"eqmency Distrnbution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2013 -09/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) M'b1_d-Direction l-4 4-8 8-13 13-19 19--25 >--25 Total N 1 16 17 8 5 0 47 NNE 1 3 11 4 0 0 19 NE 1 6 17 3 0 0 27 ENE 0 4 10 0 0 0 14 E 0 3 4 1 0 0 8 -ESE 1 2 7 1 0 0 11 SE 0 4 9 0 0 0 13 SSE 0 6 10 5 2 0 23 s -1 8 17 6 0 0 32 SSW 3 1 17 6 0 0 27 SW 2 8 7 39 4 0 60 WSW 0 5 7 5 1 0 18 w 1 2 6 12 2 0 23 WNW 2 0 4 12 1 0 19 -NW 1 l 6 9 0 0 17 NNW 1 9 7 1 0 0 18 Total 15 78 156 112 15 0 376 Cairn Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 376 Total Hours for Period 2208 A2.3-4

Site: AEP Cook Joint Frequency Distiribution Hours at Each Wind Speed and Direction Total Period Period of RecQrd = 0110112op -09/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-.8 8--1-3 -.l-9 9---25 >--25 .'fotal N 1 9 18 3 0 0 31 NNE 0 10 13 2 0 0 25 NE 2 2 20 6 0 0 30 ENE 1 8 9 1 0 0 19 E 2 2 4 0 0 0 8 -ESE l 1 17 0 0 0 19 SE 1 4 20 3 0 0 28 SSE 3 6 10 5 0 0 24 s 1 12 34 9 1 0 57 SSW 0 2 14 8 0 0 24 SW 0 2 12 21 1 0 36 WSW l 2 14 0 0 0 17 w 1 5 3 0 0 0 9 WNW 2 2 4 I 0 0 9 -NW 3 1 1 1 0 0 6 NNW 3 6 5 I 1 0 16 Total 22 74 198 6-1 3 0 358 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 358 Total Hours-for Period 2208 A2.3-5 Site: AEP Cook Joint F:requency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2013 -09/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind.Direction 1--4 4-8 8-13 13--19 19---25 >-25 -Total N 0 3 6 2 0 0 11 NNE 0 8 9 0 0 0 17 NE 0 10 14 4 0 0 28 ENE 0 6 13 0 0 0 19 E 0 3 10 1 0 0 14 ESE 2 4 14 2 0 0 22 SE 0 3 9 3 0 0 15 SSE 1 5 11 4 0 0 21 s -l 4 -18 5 0 0 -18 SSW 1 2 7 1 0 0 11 SW 1 3 5 0 0 0 9 WSW 0 2 5 0 0 0 7 w 0 0 1 0 0 0 1 WNW 1 3 0 0 0 0 4 -NW 2 0 0 0 0 0 2 NNW 1 2 1 0 0 0 4 -Total 10 58 123 22 0 0 213 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 213 !J'otal Hours for Period ~~08 A2.3-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 07/01/2013 -09/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind-Direction 1--4 4-8 8--13 13--19 19-25 >-25 Total N 1 4 1 0 0 0 6 NNE 0 8 5 1 0 0 14 NE 0 10 18 1 0 0 29 ENE 0 12 16 0 0 0 28 E 0 6 25 7 0 0 38 -ESE l 7 27 4 0 0 39 SE 3 7 20 10 0 0 40 SSE 3 10 24 11 0 0 48 s 1 7 10 6 0 0 24 SSW 4 3 12 2 0 0 21 SW 2 3 10 2 0 0 17 WSW 1 2 0 0 0 0 3 w 4 2 0 0 0 .o 6 WNW 2 3 0 0 0 0 5 -NW 1 3 0 0 0 0 4 NNW 0 6 4 0 0 0 10 l'otal 23 93 172 44 0 0 332 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 332 l'otal Hours for Period -2~08 A2.3-7

Site: AEP Cook Joint Fr-equency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 07/01/2013 -09/30/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) .Wind.Direction L,,.4 4-8 8-13 13--19 19 *. 25 >--25 Total N 4 38 72 36 9 0 159 NNE 2 32 41 9 1 0 85 NE 5 40 82 19 0 0 146 ENE 3 38 59 1 0 0 101 E 4 22 50 9 0 0 85 -ESE 6 30 75 7 0 0 18 SE 5 40 76 17 0 0 138 SSE 7 39 84 28 2 0 160 s 4 45 103 34 1 0 187 SSW 8 19 53 17 0 0 97 SW 6 36 81 85 6 0 214 WSW 3 34 55 14 2 0 108 w 10 36 28 19 3 0 96 WNW 11 47 29 15 1 0 103 NW 8 20 16 18 0 0 62 NNW 5 41 119 41 5 0 211 Total 91 557 1023 369 30 0 2070 Calm Hours not Included above for : Total Period 0 Variable Direction Hours for: Total Period 0 -Invalid Hours for: Total Period 138 Valid Hours for this Stability Class for: Total Period 2070 Total Hours .for Period 2208 Hours are not adjusted for Daylight Savings Time A2,3-8 Site: AEP Cook Joint Firequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2013 -12/31/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) .Wind Direction 1--4 4-8 8.-.13 .13 --19 !filru N 0 1 0 2 2 0 5 NNE 0 0 2 0 0 0 2 -NE 0 1 6 0 0 0 7 ENE 0 7 3 3 0 0 13 E 0 4 7 8 0 0 19 -ESE 0 0 5 0 0 0 5 SE 0 9 21 9 0 0 39 SSE 1 11 18 IO 2 0 42 s 0 7 18 2 1 44 SSW 0 1 3 6 0 0 IO SW 0 5 9 14 6 0 34 WSW 1 4 12 20 10 1 48 w 0 1 16 19 9 1 46 WNW 0 3 5 14 1 0 23 NW 0 2 6 13 4 0 2-5 NNW 0 6 9 3 5 0 23 Total 2 62 138 139 41 3 385 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 385 Total Hours for -Period 2208 A2.4-1 ' L Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2013 -12/31/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) ' Wind-Direction -1.-4 4-8 8-13 13-19 19-25 > 25 Total N 0 3 1 0 0 0 4 NNE 0 2 0 0 0 0 2 NE 0 3 5 2 0 0 10 ENE 0 0 0 0 0 0 0 E 0 0 1 8 0 0 9 ESE 0 0 3 3 0 0 6 SE 0 4 6 7 0 0 17 SSE. 0 4 5 5 1 0 15 s 0 4 9 11 3 1 28 SSW 0 2 13 6 3 1 25 SW 0 5 5 2 0 0 12 WSW 0 0 3 9 9 2 23 w 0 1 6 11 8 1 27 WNW 0 1 1 7 3 0 12 -NW 0 0 5 6 7 1 19 NNW 0 1 1 6 9 0 17 Total 0 30 64 83 43 6 226 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 226 Total Hours for Period 2208 A2.4-2 Site: AEP Cook Joint Frequency Distiribution Hours at Each Wind Speed and Direction Total Period Period of Record= 10/01/2013 -12/31/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) .Wind-Direction 1-4 4-8 8-13 Y.=12 2::..15. Total N 0 1 1 0 0 0 2 NNE 0 1 2 1 0 0 4 NE 0 3 6 0 0 0 9 ENE 0 3 2 1 0 0 6 E 0 0 5 3 0 0 8 ESE 0 1 -2 4 0 0 7 SE 0 6 5 4 0 0 15 SSE 0 3 5 7 3 1 19 s 0 2 17 6 2 0 27 SSW 0 1 16 9 0 0 26 SW 0 0 5 4 2 0 11 WSW 0 1 3 21 7 1 33 w 1 1 4 27 12 1 46 WNW 0 0 8 15 2 1 26 -NW 0 0 14 18 5 1 38 NNW 1 1 4 4 10 2 22 Total 2 24 99 124 43 7 299 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 299 Total Hours for Period 2208 A2.4-3 Site: AEP Cook Joint Frrequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2013 -12/31/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) -Wind .Direction 1-4 4-8 8-13 .Q.:12 > 25 Total N 1 4 3 0 0 0 8 NNE 1 3 5 0 0 0 9 NE 0 1 11 3 0 0 15 ENE 0 6 4 3 0 0 13 E 1 1 6 2 0 0 10 ESE 1 .1 6 6 0 0 14 SE 2 3 28 12 0 0 45 SSE 0 3 24 33 8 1 69 s 0 10 45 33 12 2 102 SSW 0 4 29 54 8 0 95 SW 1 2 14 34 13 1 65 WSW 0 .1 12 49 15 6 83 w 0 3 8 43 20 15 89 WNW 0 5 13 65 19 6 108 -NW 2 2 16 40 26 1 87 NNW 0 3 10 15 10 0 38 Total 9 52 234 392 .131 32 850 . Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 850 Total Hours for -Period 2208 A2.4-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2013 -12/31/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 ll.:.12 19-25 > 25 Total N 0 2 0 1 0 0 3 NNE 0 5 2 1 0 0 8 NE 0 l 5 0 0 0 6 ENE 0 0 4 1 0 0 5 E 0 5 3 5 0 0 13 ESE 2 -2 l3 3 0 0 20 SE 0 8 23 6 0 0 37 SSE 0 1 13 8 0 0 22 s 0 0 26 20 2 0 48 SSW 0 2 24 29 0 0 55 SW 1 1 6 4 2 0 14 WSW 0 1 4 2 1 0 8 w 0 2 6 6 0 0 14 WNW 0 1 3 4 0 0 8 -NW 0 0 4 5 0 0 9 NNW 1 2 3 1 0 0 7 Total 4 33 139 96 5 0 277 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 277 Total Hours for -Period 2208 A2.4-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2013 -12/31/2013 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stabl~ Wind Speed (mph) .Wind Direction l-~-4 4--8 8--13 U--19 19-25 >-25 *:IQ!fil N 0 0 2 0 0 0 2 NNE 0 I I 0 0 0 2 -NE 0 0 1 0 0 0 -1 ENE 0 1 2 0 0 0 3 E 1 0 3 0 0 0 4 -ESE 0 1 7 0 0 0 8 SE 0 0 13 14 0 0 27 SSE 0 1 8 6 0 0 15 s 0 0 3 4 0 0 7 SSW 0 0 6 2 0 0 8 SW 0 0 2 2 0 0 4 WSW 0 l 0 0 0 0 -] w 0 1 0 0 0 0 1 WNW 0 0 0 0 0 0 0 NW 0 0 2 0 0 0 -;2. NNW 0 0 2 0 0 .o 2 Total 1 6 52 28 0 0 87 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 87 Total Hours for Period 2208 A2.4-6 Site: AEP Cook Joint Frequency Distiributfon Hours at Each Wind Speed and Direction Total Period Period of Record= 10/01/2013 -12/31/2013 Elevation: Speed: SPD60M Direction: Dill.60:rvi Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) _Wind Direction Ll 4--8 8--13 13 --19 9---25 >--25 Total N 0 0 I 0 0 0 I NNE 0 0 3 0 0 0 3 NE 0 2 3 0 0 0 5 ENE 0 0 5 2 0 0 7 E 0 1 2 2 0 0 5 ESE 1 3 6 0 0 0 lO SE 0 1 13 10 0 0 24 SSE 0 0 5 6 0 0 11 s 0 1 0 0 0 0 1 SSW I 1 ,1 0 0 0 3 SW 0 2 4 0 0 0 6 WSW 0 0 5 0 0 0 5 w 0 I I 0 0 0 2 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 1 0 0 0 0 I Total 2 13 49 20 0 0 84 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 84 Total Hours for.Period 2208 A2.4-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 10/01/2013 -12/31/2013 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Delta Temperature Wind Speed (mph) .Wind-Direction l-.4 4-8 8-.13 .13-19 19-25 > .. 25 Total N 1 11 8 3 2 0 25 NNE 1 12 15 2 0 0 30 NE 0 11 37 5 0 0 53 ENE 0 17 -20 10 0 0 47 E 2 11 27 28 0 0 68 -ESE 4 8 42 16 0 0 70 SE 2 31 109 62 0 0 204 SSE 1 23 78 75 14 2 193 s 0 24 116 92 21 4 257 SSW 1 11 92 106 11 1 222 SW 2 15 45 60 23 1 146 WSW 1 8 39 101 42 10 201 w 1 10 41 106 49 18 225 WNW 0 10 30 105 25 7 177 -NW 2 4 47 82 42 -3 180 NNW 2 14 29 29 34 2 110 Total 20 :220 775 882 -263 48 2-208 Calm Hours not Included above for : Total Period 0 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 0 Valid Hours for this Stability Class for: Total Period 2208 ~otal .Hours for Period 2208 Hours are not adjusted for Daylight Savings Time A2A-8 OFF-SITE DOSE CALCULATION MANUAL CHANGES The Off-Site Dose Calculation Manual, P:MP-6010-0SD-001, was not revised during this reporting period. A3.0-l -~:,-____ . __ ,,:, 1 -_J m INDIANA MICHIGAN POWER" A unit of American Electric Power April 30, 2018 Docket Nos.: 50-315 50-316 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Donald C. Cook Nuclear Plant Units 1 and 2 Indiana Michigan Power Cook Nuclear Plant One Cook Place Bridgman, Ml 49106 lndianaMichiganPower.com AEP-NRC-2018-35 10 CFR 50.36a 2017 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT In accordance with Technical Specification 5.6.3, Indiana Michigan Power Company, the licensee for Donald* C. Cook Nuclear Plant (CNP) Units 1 and 2, is providing the Annual Radioactive Effluent Release Report as Enclosure 1 to this letter. This report covers the period January 1, 2017, through December 31, 2017. Additionally, this letter provides updated revisions to the 2013, 2014, 2015, and 2016 Annual Radioactive Effluent Release Reports (Enclosures 2 through 5), which incorporate changes to reported tritium values and their associated liquid dose. Revisions to the reports were necessitated when it was identified that the method used to analyze tritium values produced conservative results due to equipment limitations of the liquid scintillation counters. This condition was entered into CNP's corrective action program and all affected sample results were identified and corrected. This letter contains no new or modified regulatory commitments. Should you have any questions, please contact me at (269) 466-2649. Sincerely, Jni,~l(kL Michael K. Scarpello Regulatory Affairs Director

MDS/kmh 7-E'-IJ' ;Jf-(\ ____j U. S. Nuclear Regulatory Commission Page 2

Enclosures:

AEP-NRC-2018-35 1. Donald C. Cook Nuclear Plant Units 1 and 2 -2017 Annual Radioactive Effluent Release Report 2. Donald C. Cook Nuclear Plant Units 1 and 2 -2016 Annual Radioactive Effluent Release Report, Revision 1 3. Donald C. Cook Nuclear Plant Units 1 and 2 -: 2015 Annual Radioactive Effluent Release Report, Revision 1 4. Donald C. Cook Nuclear Plant Units 1 and 2 -2014 Annual Radioactive Effluent Release Report, Revision 1 . 5. Donald C. Cook Nuclear Plant Units 1 and 2 -2013 Annual Radioactive Effluent Release Report, Revision 1 c: R. J. Ancona -MPSC A. W. Dietrich -Washington, D.C. MDEQ -RMD/RPS NRC Resident Inspector K. S. West-NRC, Region 111 A. J. Williamson -AEP Ft. Wayne, w/o enclosures l_ ENCLOSURE 1 to AEP-NRC-2018-35 DONALD C. COOK NUCLEAR PLANT UNITS 1 AND 2 2017 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT TABLE OF CONTENTS Page Table of Contents 1 I. IL III. IV. V. VI. VII. VIII. IX. Introduction 1 Radioactive Releases and Radiological Impact on Man 1 Liquid Releases 2 Gaseous Releases 2 Solid Waste Disposition 2 Meteorological 2 Offsite Dose Calculation Manual (ODCM) Changes 3 Total Dose 3 Radiation Monitors Inoperable Greater Than 30 Days 4 Noteworthy Conditions Identified in 2017 4 Conclusion 5 Errata 5 LIST OF APPENDICES Title Appendix Al.1 2017 Effluent and Waste Disposal Annual Report -Supplemental Information Al .2 Summary of Maximum Individual Doses: First Quarter, Second Quarter, Third Quarter, and Fourth Quarter 2017 Al .3 2017 Groundwater Protection Initiative (GPI) Sample Data A2.l Hours at Each Wind Speed and Direction: First Quarter, 2017 A2.2 Hours at Each Wind Speed and Direction: Second Quarter, 2017 A2.3 Hours at Each Wind Speed and Direction: Third Quarter, 2017 A2.4 Hours at Each Wind Speed and Direction: Fourth Quarter, 2017 A3.0 Offsite Dose Calculation Manual (ODCM) Changes 1 I. INTRODUCTION This report discusses the radioactive discharges from Unit 1 and Unit 2 of the Donald C. Cook Nuclear Plant (CNP) during 2017. This is in accordance with the requirements of CNP Technical Specification (TS) 5.6.3. The table below summarizes the pertinent statistics concerning the Plant's operation during the period from January 1, 2017, to December 31, 2017. The data in this table and the descriptive information on plant operation are based upon the respective unit's Monthly Operating Reports, Performance Indicators, and Control Room Logs for 2017. Parameter Unit 1 Unit2 Gross Electrical Energy Generation 7,497,698 10,638,976 e awattHour 79.1 99.5 80.5 101.0 Unit 1 entered the reporting period in Mode 1 at Nominal Full Power (NFP). Small power adjustments were made to facilitate main turbine valve testing throughout the year. The unit performed a normal downpower and was manually tripped on September 13, 2017, entering refueling outage U1C28. The unit attained criticality on November 26, 2017, and attained NFP on December 2, 2017. The unit exited the reporting period at NFP. Unit 2 entered the reporting period in Mode 5 preparing for startup. Small power adjustments were made to facilitate main turbine valve testing throughout the year. The unit attained criticality on January 1, 2017, and attained NFP on January 14, 2017. The unit exited the reporting period at NFP. II. RADIOACTIVE RELEASES AND RADIOLOGICAL IMPACT ON MAN Since a number of release points are common to both units, the release data from both units are combined to form this two-unit, Annual Radioactive Effluent Release Report (ARERR). Appendix Al.1 through A2.4 of this report present the information in accordance with Section 5.6.3 of Appendix A to the Facility Operating Licenses, as specified in the Technical Specifications, Regulatory Guide 1.21, and 10 CPR Part 50, Appendix I. The "MIDAS System" is a computer code that calculates doses due to radionuclides that were released from the CNP. All liquid and gaseous releases were well within Offsite Dose Calculation Manual (ODCM) limits and federal limits. There were no abnormal liquid or gaseous releases in 2017. There were no spills or leaks of radioactive liquids requiring voluntary notifications per the Industry Groundwater 1 Protection Initiative or site procedures. The Independent Spent Fuel Storage Installation (ISFSD impacts are included with Unit 1 and Unit 2 statistics. The ISFSI cask system does not create any radioactive materials or have any radioactive waste treatment systems. Therefore, specific operating procedures for the control of radioactive effluents are not required. Technical Specifications for the Storm 100 Cask System, Specification 3.1.1, Multi-Purpose Canister (MPC), provides assurance that there are not radioactive effluents from the ISFSI. Liquid Releases During 2017 there were 79 liquid batch releases performed. The number of liquid batch releases for the 1st, 2°d, 3rd, and 4th quarters in 2017 were 15, 10, 25, and 29, respectively. Estimated doses (in mrem) to maximally exposed individuals via the liquid release pathways are given in Appendix Al.2 of this report. Gaseous Releases During the first quarter of 2017 there were four batch releases from Gas Decay Tanks (GDT) and 138 Containment Pressure Reliefs (CPR). During the second quarter there was one batch release from GDTs and 91 CPR. During the third quarter there were three batch releases from GDTs, one containment purge, one system tank vent, and 78 CPR. During the fourth quarter there were seven batch releases from GDTs and 60 CPR. The CPR continue to be listed as batch releases as described in Nuclear Regulatory Commission Inspections 50-315/89017 (DRSS); 50-316/89016 (DRSS) for CNP, dated June 13, 1989. Doses continue to be calculated utilizing continuous criteria as allowed by NUREG-0133. There were a total of 15 GDT releases, one containment purge, one system tank vent, and 367 CPR gaseous batch releases made during 2017. In calculating the dose consequences for continuous and batch gaseous releases during 2017, the meteorological data measured at the time of the release were used. The estimated doses (in mrem) to maximally exposed individuals via the gaseous release pathways are given in Appendix Al.2 of this report. For individuals that are within the site boundary, the occupancy time is sufficiently low to compensate for any increase in the atmospheric diffusion factor above that for the site boundary. Solid Waste Disposition There were 31 shipments of radioactive waste made during 2017. These included shipments made from the site to various radioactive waste processors for ultimate disposal. III. METEOROLOGICAL Appendices A2.l, A2.2, A2.3, and A2.4 of this report contain the cumulative joint 2 frequency distribution tables of wind speed and wind direction, corresponding to the various atmospheric stability classes for the first, second, third, and fourth quarters of 2017. Hourly meteorological data is available for review and/or inspection upon request. N. OFFSITE DOSE CALCULATION MANUAL (ODCM) CHANGES The ODCM, PMP-6010-0SD-001, was not revised during the report period. V. TOTAL DOSE Section 3.2.5 of the ODCM requires that the dose or dose commitment to a real individual from all uranium fuel cycle sources in Berrien County be limited to no more than 25 mrem to the total body or any organ ( except the thyroid, which is limited to no more than 7 5 mrem) over a period of 12 consecutive months to show conformance with the requirements of 40 CFR Part 190. The maximum cumulative dose to an individual from liquid and gaseous effluents during 2017 was well within the ODCM limits. Measurements using thermoluminescent dosimeters (TLD) at 12 onsite stations indicate that the dose due to direct radiation is consistent with preoperational and current control (background) levels. This is fully evaluated in CNP's 2017 Annual Radiological Environmental Operating Report. Additional TLD dosimetry installed by Radiation Protection department programs monitor dose received by individuals on site as visitors. The annual dose to the maximum individual will be estimated by first, summing the quarterly total body air dose, the quarterly skin air dose, the quarterly critical organ dose from iodines and particulates (I&P), the quarterly total body dose from liquid effluents, the quarterly critical organ dose from liquid effluents, and the Radiological Environmental Monitoring Program onsite direct radiation TLD data. These quarterly values are summed with the annual Carbon-14 dose and compared to the annual total body limit for conservative reasons. The table that follows here represents the above written description: Dose (mrem) 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr l&P 1.43E-02 2.11E-02 2.92E-02 2.86E-02 Total Body Air 2.50E-04 7.50E-04 1.40E-03 3.30E-04 Skin 4.10E-04 1.20E-03 2.50E-03 9.10E-04 Liquid TB 2.71E-03 5.34E-03 2.89E-02 2.37E-02 Liquid Organ 2.SOE-03 5.37E-03 2.89E-02 2.39E-02 C14 (Annual) 2.25E+OO Direct Radiation 0 0 0 0 Total 2.05E-02 3.38E-02 9.09E-02 2.33E+OO Grand Total Dose (Total Body or anv other Organ) mrem 2.47E+OO Annual Dose Limit (mrem) 25 Percent of limit 9.89E+OO The following data reflects a comparison with 2009 annual dose data (the last year without calculating C-14 dose), 2017 annual dose data, and 2017 annual dose data with C-14 added. This indicates that 2017 annual dose was 'typical' for a single unit outage year in regards to 3 radioactive effluents. The table is presented as follows: Annual Dose (mrem) % of limit t-------+----2009 2.60E-01 1.04 -----+-------! 2017 2.23E-01 0.89 ------+------< 2017 with C-14 2.47 9.89 -----~----~ VI. RADIATION MONITORS INOPERABLE GREATER THAN 30 DAYS There were no release pathways unmonitored for greater than 30 days. Vil. NOTEWORTHY CONDITIONS IDENTIFIED IN 2017 There was an issue identified where the accuracy of tritium analyses was found to be adversely impacted due to liquid scintillation counter problems. Investigations determined that the problem affected all high level tritium samples dating back to 2013. Corrective Action 2017-4835 was initiated and resolved the counter problem. One of the actions taken was to revise the ARERRs perfonned during the affected period and to submit "Errata" for any impacted years. Those revised ARERRs have been enclosed in this report as noted in Section IX. Carbon-14 Supplemental Information for the 2017 Annual Radioactive Effluent Release Report. C-14 has a 5730 year half-life and is a naturally occurring radionuclide produced by cosmic ray interactions in the atmosphere. C-14 is a relatively low energy beta emitter. Nuclear weapons testing in the 1950s and 1960s significantly increased the amount of C-14 in the atmosphere. C-14 is also produced in commercial nuclear reactors, but the amounts produced are much less than those produced naturally, from weapons testing, or coal burning power plants. The inventory of C-14 in Earth's biosphere is about 300 million Curies, of which most is in the oceans Since the U.S. Nuclear Regulatory Commission (NRC) published Regulatory Guide (RG) 1.21, Revision 1, in 1974, the analytical methods for determining C-14 have improved. Coincidentally, the radioactive effluents from commercial nuclear power plants over the same period have decreased to the point that C-14 is likely to be a principal radionuclide in gaseous effluents. Based on these reasons and a desire to adjust policy to align with international standards, the nuclear industry was requrred to report, starting m 2010, the quantity and dose impact of C-14 here in the United States. The dose will be reported both with and without C-14 so a comparison to 2009 can be made, keeping in mind the differing standards. The quantity of C-14 released to the environment can be estimated by use of a C-14 source term scaling factor based on power generation (Ref. RG 1.21, Revision 2). A recent study recommends a source term scaling factor of approximately 9.0 to 9.8 Curies/GWe-yr for a 4 Westinghouse Pressurized Water Reactor (Ref. EPRI 1021106, "Estimation of Carbon-14 in Nuclear Plant Gaseous Effluents", dated December 23, 2010). A scaling factor of 9.4 Curies/GWe-yr was assumed for this report. Using this source term scaling factor and actual electrical generation (in MWH) produced during 2017 results in a site total of 19.5 Curies produced. C-14 releases from Pressurized Water Reactors (PWR) occur primarily as a mix of organic carbon (methane) and inorganic carbon (carbon dioxide). As a general rule, C-14 in the primary coolant is essentially all organic with a large fraction as gas. Any time the primary coolant is exposed to an oxidizing environment ( during shutdown or refueling), a slow transformation from an organic to an inorganic species occurs. Various studies documenting measured C-14 releases from PWRs suggest an average 80% organic fraction with the remainder being carbon dioxide, of which 70% is. assumed to be released from gaseous batch releases. This equates to 2. 73 Curies released as carbon dioxide which is available for the food pathway through photosynthesis to vegetation. Dose is calculated utilizing the methodology prescribed in RG 1.109, Appendix C, with the vegetation dose being the predominant. A 'p' factor of 0.33 is determined utilizing the time of batch gaseous releases performed during 2017 and the time available for photosynthesis in plants. A further reduction to the vegetation and leafy vegetable dose is warranted due to the limited growing season in Michigan, which was conservatively limited to nine months. The final results indicated a calculated organ dose from C-14 to a child at the site boundary of 1.88 mrem to the bone and a whole body dose of0.374 mrem, for a combined total C-14 dose of 2.25 mrem. This is less than the dose limit of 15 mrem/unit to any organ prescribed in 10 CFR 50, Appendix I, and the 40 CFR Part 190 limit of 25 mrem for total body and for any organ ( ;95 mrem for thyroid). VIII. CONCLUSION Based on the information presented in this report, it is concluded that CNP Units 1 and 2 performed their intended design function with no demonstrable adverse effect on the health and safety of the general public. IX. ERRATA There are errata documents attached for 2017. The errata includes updated revisions of the 2013, 2014, 2015, and 2016 reports, incorporating changes to reported tritium values and their associated liquid dose. Changes were necessitated due to problems associated with liquid scintillation counters, and all affected sample results were identified and corrected per our Corrective Actions Program. These revisions do not show any adverse impact on the health and safety of the general public. 5 I 2017 Effluent and Waste Disposal Annual Report SUPPLEMENTAL INFORMATION Facility: Donald C. Cook Nuclear Plant Licensee: Indiana Michigan Power Company 1 REGULATORY LIMITS 1.1 Noble Gases The air dose in unrestricted areas due to noble gases released in gaseous effluents shall be limited to the following: 1.1.1 During any calendar quarter, to~ 5 mrad/unit for gamma radiation and~ 10 mrad/unit for beta radiation. 1.1.2 During any calendar year, to~ 10 mrad/unit for gamma radiation and~ 20 mrad/unit for beta radiation. 1.2 Iodines -Particulates 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 effluents released to unrestricted areas shall be limited to the following: 1.2.1 During any calendar quarter to~ 7.5 mrem/unit to any organ. 1.2.2 During any calendar year to~ 15 mrem/unit to any organ. 1.3 Liquid Effluents The dose or dose commitment to an individual from radioactive material in liquid effluents released to unrestricted areas shall be limited: 1.3.1 During any calendar quarter to~ 1.5 mrem/unit to the total body and to~ 5 mrem/unit to any organ. 1.3.2 During any calendar year to~ 3 mrem/unit to the total body and to~ 10 mrem/unit to any organ. Al.1-1 2017 Effluent and Waste Disposal Annual Report 1.4 Total Dose The dose or dose conunitment to a real individual 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 12 consecutive months. 2 MAXIMUM PERMISSIBLE CONCENTRATIONS 2.1 Gaseous Effluents The dose rate due to radioactive materials released in gaseous effluents from the site shall be limited to the following: 2.1.1 For noble gases: 500 mrem/yr to the total body and 3000 mrem/yr to the skin. 2.1.2 For all radioiodines and for all radioactive materials in particulate form and radionuclides (other than noble gases) with half-lives greater than eight days: 1500 mrem/yr to any organ. The above limits are provided to insure that radioactive material discharged in gaseous effluents will not result in the exposure of an individual in an unrestricted area to annual average concentrations exceeding the limits in 10 CFR Part 20, Appendix B, Table 2, Column 1. 2.2 Liquid Effluents The concentration of radioactive material released at any time from the site to unrestricted areas shall be limited to 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 2 x 10-4 µCi/ml total activity. Al.1-2 2017 Effluent and Waste Disposal Annual Report 3 AVERAGE ENERGY The average energy (E) of the radionuclide mixture in releases of fission and activation gases as defined in Regulatory Guide 1.21, Appendix B, Section A.3 is not applicable because the limits used for gaseous releases are based on calculated dose to members of the public. Release rates are calculated using an isotopic mix from actual samples rather than average energy. 4 MEASUREMENTS and APPROXIMATIONS of TOTAL RADIOACTIVITY 4.1 Fission and Activation Gases Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. 4.2 Iodines Sampled on iodine adsorbing media, and analyzed on an 8192 channel analyzer and HpGe detector. 4.3 Particulates Sampled on a glass filter and analyzed on an 8192 channel analyzer and HpGe detector. Sr-89 and Sr-90 analyses are performed by offsite vendor. 4.4 Liquid Effluents Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. Fe-55, Sr-89 and Sr-90 analyses are performed by an offsite vendor. Ni-63 is also currently being analyzed by the offsite vendor in response to evaluation of the 10 CFR 61 sample results. Al.1-3 2017 Effluent and Waste Disposal Annual Report 5 BATCH RELEASES 5 .1 Liquid 5.1.1 Number of batch releases: 15 releases in the 1st quarter, 2017 -2nd 10 releases in the quarter, 2017 25 releases in the 3rd quarter, 2017 -4th 29 releases in the quarter, 2017 5 .1. 2 Total time period for batch releases: 46,897 minutes 5.1.3 Maximum time for a batch release: 1,648 minutes 5.1.4 Average time period for batch release: 594 minutes 5.1.5 Minimum time period for a batch release: 150 minutes 5.1.6 Average stream flow during periods of release of effluent into a flowing stream: 7.59E+5 gpm circulating water Al.1-4 2017 Effluent and Waste Disposal Annual Report 5. 2 Gaseous 5.2.1 Number of batch releases: 142 releases in the l st quarter, 2017 92 releases in the 2nd quarter, 2017 -3rd 83 releases in the quarter, 2017 -4th 67 releases in the quarter, 2017 5.2.2 Total time period for batch releases: 11,315 minutes 5.2.3 Maximum time for a batch release: 354 minutes 5.2.4 Average time period for batch release: 29.5 minutes 5.2.5 Minimum time period for a batch release: 5 minutes Al.1-5 2017 Effluent and Waste Disposal Annual Report 6 ABNORMAL RELEASES 6.1 Liquid 6 .1.1 Number of Releases: 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.1.2 Total activity released (Ci): l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.2 Gaseous 6.2.1 Number of Releases: 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.2.2 Total activity released (Ci): 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 Al.1-6 2017 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! 11. FISSION GASES I H3 AR41 KR85 XE133 XE135 XE131m XE133m XE135m I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES I131 I132 I133 I Ci I Ci I Ci !Total for Period I Ci 13. PARTICULATES MN54 C060 CS137 I Ci I Ci I Ci !Total for Period I Ci 2.67E+Ol 2.67E+Ol 3.59E-06 3.87E-05 4.23E-05

DENOTES SUPPLEMENTAL ISOTOPES 1. 67E+Ol 1.67E+Ol 6.31E-06 9.03E-05 9.66E-05 Al.1-7 1. 69E+Ol 1.69E+Ol 1. 93E-05 1. 52E-04 1. 71E-04 2.66E+Ol 2.66E+Ol 3.07E-05 9.SlE-05 1.29E-04 2017 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES BATCH MODE JNuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! Jl. FISSION GASES I H3 AR41 KR85 XE131M XE133M XE133 XE135m XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci [Total for Period I Ci [ 2. IODINES I131 I133 I Ci I Ci [Total for Period I Ci [3. PARTICULATES CS137 I

BR82 I Ci I Ci [Total for Period I Ci 1. 06E-01 3.61E-01 6.45E-01 8.52E-02 l. llE-03 1. 20E+OO

DENOTES SUPPLEMENTAL ISOTOPES l.05E-01 4.88E-01 1.03E-01 1. 62E-01 2.28E-03 8.60E-01 Al.1-8 1. 69E-01 4.41E-01 4.48E-01 1. 31E-01 1.59E-04 l.19E+OO 8.20E-02 1.50E-01 4.48E-01 l.32E-04 3.39E-02 7.14E-01 2017 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES Units 1st 2nd 3rd 4th I Est. I Quarter I Quarter I Quarter I Quarter !Total I I I I IError,%1 I A. I FISSION AND I !ACTIVATION GASES I 11. I Total Release I Ci I l.09E+OOI 7.55E-011 1.02E+OOI 6.31E-01J 11.4 12. !Average release I Irate for period luCi/secJ 1.40E-01J 9.61E-02J 1.28E-01J 7.94E-02J I I I I I I 13. I Percent of 1% Gamma I l.llE-021 2.63E-021 5.0lE-021 l.lOE-021 I applicable limit* I Beta I 5.16E-03J 5.07E-031 1.19E-02J 7.75E-031 I B. I IODINES 11. JTotal I-131 I Ci I 3.59E-061 6.31E-06J 1.93E-051 3.07E-05J 22.9 J2. !Average release I Irate for period JuCi/secJ 4.62E-07J 8.02E-07J 2.42E-061 3.86E-061 I I I I I I J 3. I Percent of I % I I applicable limit* I IC. I PARTICULATES 11. I Particulates with! Ci I Jhalf lives>8 days! I 1.32E-06J 2.29E-061 6.90E-061 1.lOE-051 I I I I I I O.OOE+OOI O.OOE+OOJ O.OOE+OOJ O.OOE+OOI N/A I I I I I J2. !Average release I Irate for period luCi/secl O.OOE+OOI O.OOE+OOJ O.OOE+OOI O.OOE+OOI I I I I I I I 3. I Percent of I % Japplicable limit* I I 4. I Gross alpha I !radioactivity ID. I TRITIUM I Ci I I Ci I O.OOE+OOI O.OOE+OOI O.OOE+OOJ O.OOE+OOI I I I I I 1<7.65E-071<5.30E-071<7.14E-07J<9.03E-07J I I I I I I 2.68E+Oll l.68E+01J l.71E+Oll 2.67E+Oll 14.5 11. !Total Release J2. !Average release I Irate for period luCi/secl 3.45E+OOI 2.13E+OOI 2.15E+OOI 3.36E+OOI I I I I I I 13. I Percent of I % I I applicable limit* I I 1.96E-02J 1.21E-021 1.23E-02J 1.92E-02J I I I I I

Applicable limits are expressed in terms of dose. See Appendices Al.2-1 through Al.2-4 Al.1-9 2017 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CS137 I Ci I Ci BATCH MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CRSl MNS4 FESS COSS C060 NI63 I *KR8S ZR9S NB9S M099 TC99m AGllOm SB124 SB12S CS134 CS137 Il31 I *XE133 I *XE133m I *XE13S I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci 1.04E+02 1.73E-OS S.24E-06 3.81E-06 6.49E-06 2.97E-0S

DENOTES SUPPLEMENTAL ISOTOPES 2.06E+02 1.14E-OS 4.66E-OS 9.0lE-06 Al.1-10 1.11E+03 4.13E-07 4.06E-OS 1.86E-OS 3.77E-04 3.67E-06 3.60E-07 8.23E-06 1.07E-04 2.20E-06 8.31E+02 2.12E-04 2.03E-OS 1.0BE-06 l.17E-06 8 .14E-06 2.62E-OS 3.97E-0S l.87E-04 3.47E-06 1.36E-06 I A. I FISSION AND I I ACTIVATION I I PRODUCTS Jl. !Total Release J2. !Average diluted I I concentration I !during period I 3. I Percent of 2017 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES BATCH MODE Units 1st 2nd 3rd 4th !Est. I Ci luCi/ml I I % I Quarter I Quarter I Quarter I Quarter !Total I I I I I Error, % I I 6.25E-05J 6.70E-051 4.49E-04J 3.09E-041 12.6 4.74E-121 3.77E-121 8.70E-121 5.96E-121 I I I I I I I I I !applicable limit I I 3.00E-041 1.41E-041 4.00E-051 1.67E-04J I I I I I I B. I TRITIUM 11. !Total Release J2. !Average diluted I I concentration I !during period I 3. I Percent of I Ci luCi/ml I I % I l.04E+02J 2.06E+021 1.11E+031 8.31E+021 10.1 7.86E-061 1.16E-051 2.16E-051 1.60E-051 I I I I I I I I I !applicable limit I I 7.86E-011 1.16E+001 2.16E+OOI 1.60E+OOI I I I I I IC. I DISSOLVED AND I !ENTRAINED GASES 11. !Total Release 12. !Average diluted I Jconcentration I Ci JuCi/ml I I 0.00E+OOJ O.OOE+OOI l.09E-04J 1.89E-041 11.8 I O.OOE+OOI O.OOE+OOI 2.llE-121 3.64E-121 I Jduring period I 13. !Percent of I I !applicable limit I % I I I I I I I I I O.OOE+OOI O.OOE+OOI 1.06E-061 1.82E-06J I I I I I ID. I GROSS ALPHA Ci 1<8.11E-051<5.35E-051<1.37E-041<1.59E-041 N/A I I RADIOACTIVITY I JTOTAL RELEASE I I I I I I I I I I IE. !VOLUME OF WASTE . I Liters! 8.74E+051 5.77E+051 l.48E+061 l.71E+06J I I RELEASED I I I I I I I F. I VOLUME OF I !DILUTION WATER I I USED DURING I I PERIOD Liters I I I I 1.32E+101 I I I 1.78E+101 I I I Al .1-11 5.16E+101 I I I 5.lBE+lOI I I I 2. oo. I I 3.48 I A. I FISSION AND I I ACTIVATION I I PRODUCTS 11. !Total Release 12. !Average diluted I I concentration I !during period 13. !Percent of 2017 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES CONTINUOUS MODE Units I Ci luCi/ml I I % 1st 2nd 3rd 4th I Est. I Quarter I Quarter I Quarter I Quarter !Total I I I I IError,%1 I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI N/A O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I B. I TRITIUM 11. I Total Release 12. !Average diluted I I concentration I !during period I 3. I Percent of I Ci luCi/ml I I % I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI N/A O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I IC. I DISSOLVED AND I !ENTRAINED GASES 11. I Total Release 12. !Average diluted I I concentration I !during period I 3. I Percent of I Ci luCi/ml I I % I O.OOE+OOI 0.00E+OOI O.OOE+OOI O.OOE+OOI N/A O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I D. I GROSS ALPHA I I RADIOACTIVITY I ITOTAL RELEASE IE. I VOLUME OF WASTE I I RELEASED I F. I VOLUME OF I !DILUTION WATER I I USED DURING I I PERIOD Ci O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI N/A I I I I I I I I I Liters! O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I Liters I I I I O.OOE+OOI I I I O.OOE+OOI I I I Al.1-12 O.OOE+OOI I I I O.OOE+OOI I I I 2.00 I I 3.48 2017 Effluent and Waste Disposal Annual Report Solid Waste and Irradiated Fuel Shipments Solid Waste Shipped Offsite for Burial or Disposal 1) Type of Waste Unit Estimated amount Estimated Total Error, % a) Spent resins, filters, sludge, m3 1.54E+01 1.00E+OO evaporator bottoms, etc. Curies 1.20E+02 3.75E+OO b) Dry compressible waste, m3 7.40E+02 1.00E+OO contaminated equipment, etc. Curies 5.80E+OO 6.48E+OO m3 c) Irradiated components, control Curies rods, etc. d) Other (contaminated soil) m3 Curies 2) Estimate of Principle Radionuclide Composition a) H-3 10 % Co-58 1% Sb-125 1.5 % Cs-137 I 1% Mn-54 1% Co-60 10.5% Cs-134 0.5% Fe-55 9.0 % Ni-63 65 % C-14 0.5% b) Ni-59 1% Co-58 1% Sb-125 1.5 % Mn-54 1.5 % Co-60 43% Zr/Nb-95 0.5% Fe-55 35.5% Ni-63 14 % Cs-137 1.5% C-14 0.5% 3) Solid Waste Disposition No. of Shipments Mode of Transportation Destination 30 Truck Oak Ridge, TN 1 Truck Erwin, TN of Containers used for Shipment: Containers used are excepted packages, Type A, Sea Land, tal boxes, drums, tankers, and hi h inte rit containers HICs . !I 5) Solidification Agent: There were no solidifications performed during this report period. Al.1-13 201 7 Effluent and Waste Disposal Annual Report Yearly Release Rates I GASES Fission and Activation Gases Total Release 3.50E+OO Curies Average Release Rate 1.llE-01 µCi/sec % of Applicable Limits

y 2.46E-02 % j3 7.4 7E-03 % Iodines Total 1-131 Release 5.99E-05 Curies Average Release Rate 1.90E-06 µCi/sec % of Applicable Limit* 3.llE-01 % Particulates Total Release O.OOE-00 Curies Average Release Rate O.OOE-00 µCi/sec % of Applicable Limit* O.OOE-00 % LIQUIDS Fission and Activation Products Total Release 8.88E-04 Curies Average Diluted Concentration 6.60E-12 µCi/ml % of Applicable Limits

Total Body 1.0lE+OO % Organ 3.05E-01 %

Applicable limits are expressed in terms of the annual 10 CFR 50, Appendix I, dose limits. Al.1-14

Site Boundary and Nearest Residence Listing The following distances were used in the calculation of the maximum individual doses: Sector Direction Boundary (Meters) Nearest Residence (Meters) A N 651 659 B NNE 617 660 C NE 789 943 D ENE 1497 1747 E E 1274 1716 F ESE 972 1643 G SE 629 1640 H SSE 594 964 J s 594 997 K SSW 629 942 Al. 1-15 Summary of Maximum Individual Doses First Quarter 2017 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 2.71E-03 Child Receptor 1 1.81£-01 1.5E+O Liquid Liver 2.80£-03 Child Receptor 1 5.59£-02 5.0E+O Noble Gas Air Dose 5.54£-04 Any 594 (S) l.1 lE-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 5.16£-04 Any 629 (SSW) 5.16£-03 1.0E+l (Beta-mrad) Age Iodines and Thyroid 1.43£-02 Child 659 (N) 1.91E-01 7.5E+O Particulates Al.2-1 Summary of Maximum Individual Doses Second Quarter 2017 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 5.34E-03 Child Receptor 1 3.56E-Ol 1.SE+O Liquid Liver 5.37E-03 Child Receptor 1 1.07E-Ol 5.0E+O Noble Gas Air Dose 1.3 lE-03 Any 617 (NNE) 2.63E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 5.07E-04 Any 617 (NNE) 5.07E-03 1.0E+l (Beta-mrad) Age Iodines and Thyroid 2.1 lE-02 Child 660 (NNE) 2.81E-Ol 7.SE+O Particulates Al.2-2 Summary of Maximum Individual Doses Third Quarter 2017 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 2.89E-02 Child Receptor 1 1.92E+OO 1.5E+O Liquid Liver 2.89E-02 Child Receptor 1 5.77E-Ol 5.0E+O Noble Gas Air Dose 2.51E-03 Any 651 (N) 5.0lE-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 1.19E-03 Any 651 (N) 1.19E-02 l.OE+l (Beta-mrad) Age Iodines and Thyroid 2.92E-02 Child 659 (N) 3.89E-01 7.5E+O Particulates Al.2-3 Summary of Maximum Individual Doses Fourth Quarter 2017 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 2.37E-02 Child Receptor 1 1.58E+OO l.5E+O Liquid Liver 2.39E-02 Child Receptor 1 4.78E-01 5.0E+O Noble Gas Air Dose 5.52E-04 Any 651 (N) l.lOE-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 7.75E-04 Any 651 (N) 7.75E-03 l.OE+l (Beta-mrad) Age Iodines and Thyroid 2.86E-02 Child 659 (N) 3.82E-Ol 7.5E+O Particulates Al.2-4 L 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection = LLD 1* (Note: Wells MW-22 through MW-27 are multi-port wells installed in the Fall of 2009, with three sample points placed at different depths. S= Shallow M= Middle D= Deep.) * (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD (Note: Wells MW-22 through MW-27 are multi-port wells installed in the Fall of 2009, with three sample points placed at different depths .. S= Shallow M= Middle D= Deep.) (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-1 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD rot*-c***-~ r w""i-**-----*****1 [ w*2*******----:*1 rw""3 ~, r w ,f------*i Lws'""""""--**--j 'W(;*****--:---"l [ w-;r--*---*11\v"s*-*, L a e --------: L -*****-*-------*--------[_1 ------_:[ .. -******--. ----*** L!!.:Y ---* . ..J . -........ L!_l'_: -------: 01/03/2017 <LLD <LLD L9)!09l~9_1_Ij [~<LI1f"""""l L *.** :-:=--*----*,**' '--******-*-****-*---* '---~---------* 01/16/2017 <LLD <LLD [o 1119t20_17 ._J '"'*"'**'"****-**"'***--*****' '*"'***-;;:c.c,.=--*---*'*------'**' 02/02/2017 <LLD i 03/Q.9l?Q17 :~--------~-----**----------*---~~~----~-~~---~~*~*--~~-----~~LD~-"""1~-----~-"--~*--~~--~~ 04/03/2017 <LLD -<LLD ~9.1aQ.!2 .. J"*--------~~---~8_LLD *:*----~~-=~---~--~~--------,[".::!::_lJL_J~------04/05/2017 : * <LLD _ _ L@ml.2-9J.1..J *---------------------------' "*****--------------' *------*---------* @b __ __j [1 :_11 e-6 [ <LLD-~~=-*J '----------*--' '--~--------------------* . 05/19/2017 <LLD [ 06/09/2017..J k---------------~ *-------------------* *-----------------* ~*----------------~ *--------------------**' '-*---=:c=-----------' ~------------------~ *------------------------~

07/13/2017 <LLD <LLD *****--*---. -----*-; L O} / 14/2 0 1_ 7 ;;:.; !.. .... :::..-:::.c:::: . .:, *** ,c: * ..J c ..... , ....... , ........... ,..a '-'***--*"'*-*-*-*-" '--------******"---*' '---**'***-*"**---*--**' 0 ** , ...... , ... -............ , , ... ,.:.::::=: ............ ...J '""*-**--*-****---' 07/19/2017 <LLD <LLD <LLD r---------------r<LLD ----1 LO 8/08/201_7 __ J , ......................... ______ , -----------*-'***--" , ________________ ;c, ......... , L, _________________ .j '****--------*-*-'------------' *------------------09 /13/20 l 7 *' <LLD ! 10/03/2017 ; [<LLD : ***--"'"'"'"'"'"~L ** -.. ,---------* * *~-*"----------s~----------->~----*-*-*---~~----**-----~~-----'""'"'"'--10/05/2017 [_t 0/07/2017 *_1 10/10/2017 <LLD ' 11/21120'li: L_ __________________ . ___ . ---------------------' '----------------' '------------** 12/04/2017 <LLD <LLD <LLD *<LLD (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-2 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD cvJ!.t~.=:::_~:.=~*J [~9~.c:.: J u~_G:.*i*** ;. -* L~i!:-.f~~:=*::c1 i-.~G~~: ~1 L~w:1~ .. :~:J CM-w~~[.~J LMw~(J [~w::t~.~~.*,: 01/11/2017 <LLD [Oh'19/20l7 ;[<LLD~.-~.J[<LLD-=][<LLD==-_] [<LLO*=-:~:'--==-*** 04/04/2017 <LLD <LLD <LLD <LLD . <LLD [cf476s7ioT7J [<LLD. ___ J[ <LLD ______ .J ..... _, ______ _ 07/11/2017 , <LLD f .011B/2017 __ : [<LLD ____ J f <LLD _____ _.] [ <LLD ........ l [ <LLD ___ J ..................................... , 07/14/2017 <LLD <LLD r 10/02/20 Ii.* r::*----*-, _ _ , ............ *-----~-' --~'----*--***--**-*~-~---= *~--~-----"(:<LLD~J ,~.~-----~LJ---**~-------~~-------*~---*---* I 0/03/2017 <LLD LJ.Q/OSf.'.201 L '------*-**"----' -----------* 11/26/2017 <LLD (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection = LLD ,-=-==---*---*' [Q__w:T=:J [ow-:i-*~ rnw::::c~_J Liviw~2s:--1 [Mw""19 .J ~-----~'-*-------~~---------o 1/03/2017 <LLD <LLD 1.14e-6 <LLD L 02/02/2017. 1 [<tLD -* .J [<LLD __ . l l_ l.53e-6* _J L<LLD ..... ] *--*********-**-***--*** '********-**---*****---*~**--*-*-*-***************-*** 03/07/2017 <LLD <LLD , <LLD . I .69e-6 <LLD l .. 04/24/2017 : [<LLD .. _] i<LLD ......... 1 [<LLD __ J IT I Oe-6 __ _] [<LLD****---... l .... ~*--****---*--**-**-' '-**********-'-------**' ~--****--**--***********-~ 05/19/2017 <LLD L.Q~!l.!f?_QJ.7 __ ; ~4e-z..:~] [~~J:,P *:::_,J '-**-******-*******-***' , ....................... ,., .......................... ,,.,. 06/09/2017 <LLD . <LLD <LLD l.07e-6 <LLD [.08/08/2017 .. l [<LLD ........ -1 L<LLD._ ... Jr <LLD .. _ l[<LLD* ..... J l.<LLD __ J, ................... --****** **-*******-*--******* 09/21/2017 <LLD <LLD <LLD 9.86e-7 <LLD Drn>Jl~Q1IJ [~Etlr.=:~J Et;~o**~::] , ___ c:;:.:::::..--;: .* ___ _, ~***--------' 11/21/2017 <LLD r . r 'r:; ] r<. LLD*_*-_-_*-..... 11[.<LLD_ .* .. _*_-__ *_**--_-_l ;)2(04/2017 \<LLD ______ 1,<Ll,D_ ____ . .. (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-3 -------, I L 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD CQate:*~~~~~~:-~:-~'. [\v:9~~:~] rw:"fo-~~~~-] [w:u*-=~=: rw.:-12_ =~=i [w-13.~--~J cw~1~(~::*:*J rw=i5_--~~:J 01/03/2017 <LLD <LLD 1 01/16/2017 __ : [ <LLD ___ J l_<LLD _ _j [<LLD __ ... j *--.. ------*-**--**""' '**-**-----------**------*--****"' ""-------------****------* '***-----****--**---**-' '"****--***---------~* 01/18/2017 <LLD rou1912011 : I.~.-... ,.--,-****""'~"'-********---**--**------*' '--*-**"********** 04/03/2017 <LLD <LLD 104/04/2017_ I [<ULD ---J [<LLD__ _I 04/05/2017 <LLD <LLD <LLD [__Qza]f2oiil LLLb _"~J ~---------* ~--------~--------~ ~---~L-----~------~*----~--~ 07/14/2017 <LLD ,<LLD <LLD <LLD <LLD f 07 /19/201 7. : '**-****-**-***-~ '*--***-*-*----' L ............. , .. --***-**' L---******---***--*******' L ....... -**.********* ,_ ________________________ __,f_<LLD ___ _J ,... ___________ _ 10/05/2017 <LLD <LLD <LLD <LLD <LLD <LLD LJ 010112011 i ~----**-----------* *------~-----------*-*--' *---------*---*--(Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Analysis of the Sample Data The Groundwater Protection Initiative (GPI) Sample Data for 2017 indicates no groundwater contamination in excess of the reporting threshold of2.00E-5 uCi/mL for tritium. Gamma spectroscopy was performed on all Radiological Environmental Monitoring Program wells quarterly. Those results are not actual GPI results so are not included in the ARERR, but are part ofCNP's 2017 Annual Radiological Environmental Operating Report. There were no positively identified gamma radionuclides from plant effluents detected in any of the GPI well samples, and two wells with trace levels of tritium just above detection limits. The LLD value used for tritium counting of the samples varied between 9.42E-7 and 9.98E-7uCi/mL, depending on which scintillation counter was used. This is well below the required maximum LLD value of2.00E-6 uCi/mL per theODCM. No tritium values were found significantly above LLD for 2017, though values found above the LLD are not abnormal, unexpected, or inconsistent with past sampling history. The samples observed above LLD historically were expected results from the release of tritiated water into the Absorption Pond, a licensed pathway and part of plant design, or the result ofrecapture deposition of tritium from licensed radioactive gaseous release points. The 2017 results were within expected parameters considering the reduction in tritium released to the Absorption Pond and typical rainfall recapture of tritium experienced. Wells located inside the Protected Area of the plant are subject to recapture deposition of tritium and may show occasional sample results above LLD values following rainfalls and snow melt. The results observed in 2017 continue to reflect nonnal expectations and behaviors as they relate to recaptured tritium for the weather conditions observed in 2017. Well MW-28 lies close to the vent stacks in the predominant wind direction, so it is expected to observe recaptured tritium from precipitation periodically. Well W-5 lies just west of the turbine building also in close proximity to the plant vent stacks, and indicated low level tritium a single time during a period of snow melt. The sample data indicates that no radioactive spills or unidentified leaks have occurred in 2017 impacting groundwater. The sample results indicate proper well placement to ensure the protection of the groundwater and early identification of any abnormal conditions involving groundwater. This is validated by the demonstrated ability to monitor percolation from the Absorption Pond and recaptured tritium in precipitation, with flow direction and behavior acting as described in the plant licensing documents. Al.3-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 5 12 9 5 0 31 NNE 0 3 3 0 0 0 6 NE 0 6 3 0 0 0 9 ENE 0 2 3 0 0 0 5 E 0 1 1 4 2 0 8 ESE 0 1 3 6 1 0 11 SE 0 1 4 15 1 0 21 SSE 0 4 13 4 3 0 24 s 0 2 10 4 4 0 20 SSW 0 2 2 2 1 0 7 SW 0 4 0 0 7 0 11 WSW 0 6 10 11 4 7 38 w 2 8 9 5 5 0 29 WNW 0 5 11 12 5 1 34 NW 0 4 5 32 5 0 46 NNW 0 1 16 16 8 0 41 Total 2 55 105 120 51 8 341 Calm Hours not Included above for : Total Period 11 Valid Hours for this Stability Class for: Total Period 341 Total Hours for Period 2160 A2.1-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 3 5 2 1 0 11 NNE 0 2 7 1 0 0 10 NE 1 1 1 0 0 0 3 ENE 0 0 2 0 0 0 2 E 0 2 1 4 0 0 7 ESE 0 0 3 2 1 0 6 SE 1 1 5 2 0 0 9 SSE 0 3 3 2 0 0 8 s 1 6 3 2 0 0 12 SSW 0 5 2 4 0 0 11 SW 1 2 1 0 0 0 4 WSW 1 4 3 0 1 2 11 w 0 1 4 3 3 0 11 WNW 1 3 1 20 15 1 41 NW 0 0 2 11 5 0 18 NNW 1 0 2 8 0 0 11 Total 7 33 45 61 26 3 175 Calm Hours not Included above for : Total Period 11 Valid Hours for this Stability Class for: Total Period 175 Total Hours for Period 2160 A2.1-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 9 22 3 6 0 40 NNE 1 4 4 2 1 0 12 NE 0 2 2 0 0 0 4 ENE 2 1 7 2 0 0 12 E 0 2 4 4 2 0 12 ESE 0 5 9 1 2 0 17 SE 1 2 5 1 0 0 9 SSE 0 1 5 5 0 0 11 s 1 1 7 8 5 0 22 SSW 0 2 3 2 1 0 8 SW 0 2 1 0 0 0 3 WSW 0 1 4 4 0 1 10 w I 0 4 9 3 0 17 WNW 0 1 7 26 4 I 39 NW 0 0 6 30 20 0 56 NNW I 0 7 20 4 0 32 Total 7 33 97 117 48 2 304 Calm Hours not Included above for : Total Period 11 Valid Hours for this Stability Class for: Total Period 304 Total Hours for Period 2160 A2.1-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 3 11 15 8 2 0 39 NNE 1 10 5 3 4 0 23 NE 2 2 7 3 0 0 14 ENE 0 8 13 0 0 0 21 E 0 11 8 12 1 1 33 ESE 0 7 13 21 4 1 46 SE 3 6 11 14 9 0 43 SSE 1 3 16 31 11 1 63 s 1 4 18 29 17 5 74 SSW 2 3 12 23 2 0 42 SW 0 1 16 29 14 4 64 WSW 0 1 11 20 7 8 47 w 4 4 9 12 6 2 37 WNW 1 4 6 43 11 0 65 NW 0 1 8 33 19 8 69 NNW 1 0 11 13 6 0 31 Total 19 76 179 294 113 30 711 Calm Hours not Included above for : Total Period 11 Valid Hours for this Stability Class for: Total Period 711 Total Hours for Period 2160 A2.1-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 0 0 1 0 0 1 NNE 1 0 3 0 0 0 4 NE 1 1 3 0 0 0 5 ENE 0 1 3 1 0 0 5 E 0 0 3 6 0 0 9 ESE 0 5 7 2 0 0 14 SE 1 5 7 4 0 0 17 SSE 0 4 10 6 0 0 20 s 0 1 11 12 0 0 24 SSW 0 1 8 7 0 0 16 SW 0 1 1 5 2 0 9 WSW 1 1 0 2 1 0 5 w 0 1 2 1 1 0 5 WNW 2 0 1 2 0 0 5 NW 1 2 5 0 0 0 8 NNW 1 2 1 0 0 0 4 Total 8 25 65 49 4 0 151 Calm Hours not Included above for : Total Period 11 Valid Hours for this Stability Class for: Total Period 151 Total Hours for Period 2160 A2.1-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 0 0 0 0 0 0 NNE 0 2 0 0 0 0 2 NE 0 1 1 0 0 0 2 ENE 1 0 2 1 0 0 4 E 0 2 0 3 0 0 5 ESE I 0 1 1 0 0 3 SE 0 2 4 3 0 0 9 SSE 0 0 2 I 0 0 3 s 0 I 4 2 0 0 7 SSW I I 2 1 0 0 5 SW 0 I 0 0 0 0 1 WSW 0 0 I 0 0 0 I w 0 0 0 0 0 0 0 WNW I 0 0 0 0 0 1 NW 0 4 0 0 0 0 4 NNW 0 0 1 0 0 0 1 Total 4 14 18 12 0 0 48 Calm Hours not Included above for : Total Period 11 Valid Hours for this Stability Class for: Total Period 48 Total Hours for Period 2160 A2.1-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 1 0 0 0 0 1 NNE 0 0 0 0 0 0 0 NE 2 1 0 0 0 0 3 ENE 0 0 1 1 0 0 2 E 0 1 2 0 0 0 3 ESE 0 0 1 1 0 0 2 SE 0 0 5 1 0 0 6 SSE 0 0 0 0 0 0 0 s 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 3 0 0 0 0 3 WSW 1 2 1 0 0 0 4 w 0 0 1 0 0 0 1 WNW 0 4 0 0 0 0 4 NW 1 3 2 0 0 0 6 NNW 0 0 0 0 0 0 0 Total 4 15 13 3 0 0 35 Calm Hours not Included above for : Total Period 11 Valid Hours for this Stability Class for: Total Period 35 Total Hours for Period 2160 A2.1-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 1/1/2017 -3/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 3 29 54 23 14 0 123 NNE 3 21 22 6 5 0 57 NE 6 14 17 3 0 0 40 ENE 3 12 31 5 0 0 51 E 0 19 19 33 5 1 77 ESE 1 18 37 34 8 1 99 SE 6 17 41 40 10 0 114 SSE 1 15 49 49

14 1 129 s 3 15 53 57 26 5 159 SSW 3 14 29 39 4 0 89 SW 1 14 19 34 23 4 95 WSW 3 15 30 37 13 18 116 w 7 14 29 30 18 2 100 WNW 5 17 26 103 35 3 189 NW 2 14 28 106 49 8 207 NNW 4 3 38 57 18 0 120 Total 51 251 522 656 242 43 1765 Calm Hours not Included above for : Total Period 11 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 384 Valid Hours for this Stability Class for: Total Period 1765 Total Hours for Period 2160 A2.1-8 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 4/1/2017 -6/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 4 23 23 2 0 52 NNE 0 3 1 0 1 0 5 NE 1 5 0 0 0 0 6 ENE 0 1 0 0 0 0 1 E 0 2 0 0 0 0 2 ESE 0 0 5 7 0 0 12 SE 0 2 3 5 0 0 10 SSE 0 0 2 7 5 0 14 s 0 1 3 9 4 2 19 SSW 0 0 0 3 3 0 6 SW 0 0 4 7 5 0 16 WSW 0 3 20 13 1 0 37 w 0 14 28 9 4 0 55 WNW 1 20 25 4 0 0 50 NW 1 10 15 4 1 1 32 NNW 0 9 25 12 7 4 57 Total 3 74 154 103 33 7 374 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 374 Total Hours for Period 2184 A2.2-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 4/1/2017 -6/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13-19 19-25 > 25 Total N 0 1 6 1 0 2 10 NNE 0 0 0 0 0 0 0 NE 0 2 0 0 0 0 2 ENE 0 0 0 1 0 0 1 E 1 1 0 0 0 0 2 ESE 0 0 1 1 0 0 2 SE 0 1 1 0 0 0 2 SSE 0 1 2 0 0 0 3 s 1 1 0 2 1 0 5 SSW 0 0 1 0 0 0 1 SW 0 1 0 4 0 0 5 WSW 0 6 3 5 0 0 14 w 0 5 2 1 0 0 8 WNW 1 7 3 5 0 0 16 NW 0 4 2 0 1 0 7 NNW 0 -5 2 1 0 2 10 Total 3 35 23 21 2 4 88 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 88 Total Hours for Period 2184 A2.2-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 4/1/2017 -6/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 1 2 1 1 3 8 NNE 0 0 1 0 0 0 1 NE 0 0 1 0 0 0 1 ENE 0 0 1 1 0 0 2 E 0 0 1 1 0 0 2 ESE 1 0 4 5 0 0 10 SE 0 1 1 0 0 0 2 SSE 0 3 1 1 0 0 5 s 0 1 2 0 1 0 4 SSW 0 1 1 2 1 0 5 SW 0 1 3 7 0 0 11 WSW 0 1 4 4 0 0 9 w 0 5 3 2 0 0 10 WNW 1 2 3 1 1 0 8 NW 1 0 2 1 0 0 4 NNW 1 1 2 0 1 2 7 Total 4 17 32 26 5 5 89 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 89 Total Hours for Period 2184 A2.2-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 4/1/2017 -6/30/2017 *Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 1 6 11 6 4 6 34 NNE 2 3 2 2 0 0 9 NE 1 5 6 5 2 0 19 ENE 1 4 3 3 0 0 11 E 0 1 11 7 0 0 19 ESE 0 0 6 8 0 0 14 SE 0 2 4 6 0 0 12 SSE 1 2 5 2 0 0 10 s 0 2 6 15 14 0 37 SSW 0 6 17 26 9 0 58 SW 3 3 15 17 6 0 44 WSW 3 3 9 9 1 0 25 w 4 5 4 3 3 0 19 WNW 3 7 7 15 5 0 37 NW 1 5 4 5 1 0 16 NNW 1 3 2 5 1 13 Total 21 55 113 131 50 7 377 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 377 Total Hours for Period 2184 A2.2-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 4/1/2017 -6/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13-19 19-25 > 25 Total N 4 4 3 1 0 0 12 NNE 0 4 10 0 0 0 14 NE 0 8 19 1 0 0 28 ENE 1 4 8 3 0 0 16 E 0 2 9 3 0 0 14 ESE 0 2 9 5 0 0 16 SE 1 2 11 9 0 0 23 SSE 1 2 5 12 1 0 21 s 1 2 15 18 1 0 37 SSW 0 5 14 17 0 0 36 SW 1 1 9 13 0 0 24 WSW 0 0 9 4 0 0 13 w 0 4 7 2 0 0 13 WNW 0 3 7 15 0 0 25 NW 0 7 5 6 0 0 18 NNW 1 1 5 2 0 0 9 Total 10 51 145 Ill 2 0 319 Calm Hours not Included above for : Total Period I Valid Hours for this Stability Class for: Total Period 319 Total Hours for Period 2184 A2.2-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 4/1/2017 -6/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4.-8 8 -13 13-19 19-25 > 25 Total N 0 0 1 0 0 0 1 NNE 0 1 3 0 0 0 4 NE 1 2 4 1 0 0 8 ENE 0 3 4 1 0 0 8 E 0 0 0 0 0 0 0 ESE 1 1 1 2 0 0 5 SE 1 3 8 0 0 0 12 SSE 0 2 8 3 0 0 13 s 2 1 7 5 0 0 15 SSW 0 3 4 2 0 0 9 SW 0 1 6 2 0 0 9 WSW 0 2 6 0 0 0 8 w 0 1 1 1 0 0 3 WNW 0 2 1 0 0 0 3 NW 0 3 1 0 0 0 4 NNW 0 0 2 0 0 0 2 Total 5 25 57 17 0 0 104 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 104 Total Hours for Period 2184 A2.2-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 4/1/2017 -6/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (ipph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 2 2 4 0 0 0 8 NNE 3 3 5 0 0 0 11 NE 0 3 4 0 0 0 7 ENE 2 3 10 0 0 0 15 E 3 4 7 1 0 0 15 ESE 0 7 9 0 0 0 16 SE 2 6 6 0 0 0 14 SSE 0 7 15 3 0 0 25 s 0 5 8 9 0 0 22 SSW 2 2 5 2 0 0 11 SW 0 3 14 1 0 0 18 WSW 0 2 2 2 0 0 6 w 0 7 0 0 0 0 7 WNW 0 2 0 0 0 0 2 NW 1 0 0 0 0 0 1 NNW 0 1 0 0 0 0 1 Total 15 57 89 18 0 0 179 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 179 Total Hours for Period 2184 A2.2-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 4/1/2017 -6/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 7 18 50 32 7 11 125 NNE 5 14 22 2 1 0 44 NE 3 25 34 7 2 0 71 ENE 4 15 26 9 0 0 54 E 4 10 28 12 0 0 54 ESE 2 10 35 28 0 0 75 SE 4 17 34 20 0 0 75 SSE 2 17 38 28 6 0 91 s 4 13 41 58 21 2 139 SSW 2 17 42 52 13 0 126 SW 4 10 51 51 11 0 127 WSW 3 17 53 37 2 0 112 w 4 41 45 18 7 0 115 WNW 6 43 46 40 6 0 141 NW 4 29 29 16 3 1 82 NNW 3 18 39 17 13 9 99 Total 61 314 613 427 92 23 1530 J Calm Hours not Included above for : Total Period 1 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 653 Valid Hours for this Stability Class for: Total Period 1530 Total Hours for Period 2184 A2.2-8 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 8 31 28 0 0 67 NNE 0 0 2 0 0 0 2 NE 0 4 8 0 0 0 12 ENE 0 1 8 0 0 0 9 E 0 8 12 2 0 0 22 ESE 0 4 6 0 0 0 10 SE 0 11 9 0 0 0 20 SSE 0 5 13 0 0 0 18 s 0 0 7 0 0 0 7 SSW 0 2 1 1 0 0 4 SW 0 0 2 1 0 0 3 WSW 1 4 17 1 0 0 23 w 0 12 14 0 0 0 26 WNW 0 33 17 5 0 0 55 NW 0 34 27 10 0 0 71 NNW 0 15 38 24 0 0 77 Total 1 141 212 72 0 0 426 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 426 Total Hours for Period 2208 A2.3-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 6 4 2 0 0 12 NNE 0 0 0 0 0 0 0 NE 2 1 0 0 0 0 3 ENE 0 0 0 0 0 0 0 E 1 2 0 0 1 0 4 ESE 0 4 3 0 0 0 7 SE 1 4 1 0 0 0 6 SSE 0 14 4 0 0 0 18 s 0 2 6 1 0 0 9 SSW 0 3 1 0 0 0 4 SW 1 2 3 0 0 0 6 WSW 0 7 10 3 0 0 20 w 0 4 4 0 0 0 8 WNW 1 9 2 0 0 0 12 NW 0 6 4 3 0 0 13 NNW 0 3 5 1 0 0 9 Total 6 67 47 10 1 0 131 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 131 Total Hours for Period 2208 A2.3-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 2 4 2 0 0 8 NNE 1 0 0 1 0 0 2 NE 1 2 0 0 0 0 3 ENE 0 1 1 0 0 0 2 E 1 3 0 0 0 0 4 ESE 1 8 3 0 0 0 12 SE 0 3 5 0 0 0 8 SSE 1 4 4 0 0 0 9 s 0 1 6 0 0 0 7 SSW 0 3 2 0 0 0 5 SW 0 6 1 0 0 0 7 WSW 1 5 4 1 0 0 11 w 0 1 2 1 0 0 4 WNW 0 2 2 1 0 0 5 NW 0 5 3 1 0 0 9 NNW 0 2 3 1 0 0 6 Total 6 48 40 8 0 0 102 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 102 Total Hours for Period 2208 A2.3-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 2 16 23 12 0 0 53 NNE 2 5 4 1 0 0 12 NE 3 3 1 2 0 0 9 ENE 1 2 8 1 0 0 12 E 3 4 5 1 0 0 13 ESE 1 8 4 1 0 0 14 SE 5 9 5 0 0 0 19 SSE 1 10 7 3 0 0 21 s 5 14 16 5 0 0 40 SSW 1 9 6 1 0 0 17 SW 1 9 7 6 2 1 26 WSW 2 10 6 12 5 0 35 w 1 5 4 8 3 1 22 WNW 5 6 5 6 2 0 24 NW 3 4 2 7 0 0 16 NNW 3 8 9 9 0 0 29 Total 39 122 112 75 12 2 362 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 362 Total Hours for Period 2208 A2.3-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 3 18 30 6 0 0 57 NNE 0 11 17 2 0 0 30 NE 1 5 13 0 0 0 19 ENE 0 7 7 2 0 0 16 E 1 9 8 5 0 0 23 ESE 1 7 7 0 0 0 15 SE 1 9 15 1 0 0 26 SSE 0 9 30 5 0 0 44 s 0 7 42 12 0 0 61 SSW 2 1 16 6 0 0 25 SW 1 8 7 9 0 0 25 WSW 0 3 6 6 0 0 15 w 0 2 10 7 0 0 19 WNW 0 2 5 6 2 0 15 NW 2 0 13 13 5 0 33 NNW 3 5 27 5 0 0 40 Total 15 103 253 85 7 0 463 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 463 Total Hours for Period 2208 A2.3-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 3 5 0 0 0 8 NNE 1 7 IO 0 0 0 18 NE 2 9 11 0 0 0 22 ENE 1 2 15 0 0 0 18 E 2 5 18 0 0 0 25 ESE 3 4 20 1 0 0 28 SE 2 10 27 1 0 0 40 SSE 2 IO 12 15 0 0 39 s 0 6 12 2 0 0 20 SSW 1 3 IO 2 0 0 16 SW 1 2 13 3 0 0 19 WSW 0 1 2 0 0 0 3 w 0 2 1 0 0 0 3 WNW 0 1 1 0 0 0 2 NW 1 1 2 0 0 0 4 NNW 3 1 7 1 0 0 12 Total 19 67 166 25 0 0 277 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 277 Total Hours for Period 2208 A2.3-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 4 6 4 0 0 0 14 NNE 0 8 7 0 0 0 15 NE 5 8 17 0 0 0 30 ENE 5 15 21 1 0 0 42 E 6 4 30 1 0 0 41 ESE 0 10 34 1 0 0 45 SE 6 10 36 4 0 0 56 SSE 7 13 35 17 0 0 72 s 3 12 16 10 0 0 41 SSW 1 1 10. 7 0 0 19 SW 1 4 11 2 0 0 18 WSW 1 5 2 0 0 0 8 w 1 2 2 0 0 0 5 WNW 2 2 2 0 0 0 6 NW 1 2 0 0 0 0 3 NNW 2 2 1 0 0 0 5 Total 45 104 228 43 0 0 420 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 420 Total Hours for Period 2208 A2.3-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record= 7/1/2017 -9/30/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 9 59 101 50 0 0 219 NNE 4 31 40 4 0 0 79 NE 14 32 50 2 0 0 98 ENE 7 28 60 4 0 0 99 E 14 35 73 9 1 0 132 ESE 6 45 77 3 0 0 131 SE 15 56 98 6 0 0 175 SSE 11 65 105 40 0 0 221 s 8 42 105 30 0 0 185 SSW 5 22 46 17 0 0 90 SW 5 31 44 21 2 1 104 WSW 5 35 47 23 5 0 115 w 2 28 37 16 3 1 87 WNW 8 55 34 18 4 0 119 NW 7 52 51 34 5 0 149 NNW 11 36 90 41 0 0 178 Total 131 652 1058 318 20 2 2181 Calm Hours not Included above for : Total Period I Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 26 Valid Hours for this Stability Class for: Total Period 2181 Total Hours for Period 2208 A2.3-8 L_ ___ _

Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/1/2017 -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 5 9 3 1 0 18 NNE 1 4 9 5 0 0 19 NE 2 4 4 0 0 0 10 ENE 0 3 2 0 0 0 5 E 0 8 4 1 0 0 13 ESE 0 2 1 0 0 0 3 SE 0 0 3 0 0 0 3 SSE 0 0 5 4 0 0 9 s 0 0 3 2 0 0 5 SSW 0 0 0 0 0 0 0 SW 0 0 0 3 2 0 5 WSW 0 1 3 6 1 0 11 w 0 1 4 3 4 0 12 WNW 0 2 2 2 0 0 6 NW 0 5 2 2 1 0 10 NNW 0 5 1 2 1 0 9 Total 3 40 52 33 10 0 138 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 138 Total Hours for Period 2208 A2.4-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/1/2017 -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 0 5 0 0 0 5 NNE 0 0 0 0 0 0 0 NE 0 1 1 0 0 0 2 ENE 0 1 0 0 0 0 1 E 0 2 0 0 0 0 2 ESE 0 2 2 2 0 0 6 SE 0 2 3 3 0 0 8 SSE 0 3 3 3 0 0 9 s 0 0 6 4 3 0 13 SSW 0 0 2 0 0 0 2 SW 0 0 1 3 0 0 4 WSW 0 0 2 6 1 0 9 w 0 1 4 3 1 0 9 WNW 0 1 1 1 1 1 5 NW 0 1 0 1 4 0 6 NNW 1 0 1 1 0 0 3 Total 1 14 31 27 10 1 84 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 84 Total Hours for Period 2208 A2.4-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/1/2017 -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 1 3 0 0 0 4 NNE 0 0 1 0 0 0 1 NE 0 1 0 0 0 0 1 ENE 0 0 1 0 0 0 1 E 1 0 0 1 0 0 2 ESE 0 1 2 0 0 0 3 SE 0 1 7 1 0 0 9 SSE 0 3 8 3 0 0 14 s 0 1 5 5 2 0 13 SSW 0 0 1 5 0 0 6 SW 0 1 1 3 1 0 6 WSW 0 1 2 1 0 2 6 w 1 1 4 2 1 0 9 WNW 0 1 1 3 1 0 6 NW 0 0 2 2 2 0 6 NNW 1 1 1 1 0 0 4 Total 3 13 39 27 7 2 91 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 91 Total Hours for Period 2208 A2.4-3 Site: AEP Cook Joint Frequency Distribution . Hours at Each Wind Speed and Direction Total Period Period of Record = 10/1/2017 -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 9 21 9 10 1 50 NNE 1 4 5 4 1 0 15 NE 0 4 3 1 0 0 8 ENE 1 14 19 4 1 0 39 E 3 10 25 8 6 0 52 ESE 5 6 13 12 0 0 36 SE 0 15 25 5 0 0 45 SSE 1 18 42 24 11 1 97 s 0 17 40 28 10 5 100 SSW 1 8 41 27 17 1 95 SW 1 5 20 47 13 0 86 WSW 1 9 11 28 12 14 75 w 2 4 18 42 46 17 129 WNW 2 5 21 63 41 1 133 NW 1 1 16 44 46 6 114 NNW 2 8 13 32 12 13 80 Total 21 137 333 378 226 59 1154 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 1154 Total Hours for Period 2208 A2.4-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/1/2017 . -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 2 I 7 0 0 0 10 NNE 0 2 4 0 0 0 6 NE 0 5 11 2 0 0 18 ENE 1 4 13 2 0 0 20 E 1 1 12 3 0 0 17 ESE 0 3 10 2 0 0 15 SE 1 8 21 11 0 0 41 SSE 0 4 24 35 2 0 65 s 1 9 35 27 6 0 78 SSW 1 7 34 22 8 2 74 SW 1 3 5 17 2 0 28 WSW 1 1 6 3 0 1 12 w 0 3 7 6 0 0 16 WNW 0 2 7 16 10 0 35 NW 0 2 7 15 4 1 29 NNW 0 1 9 7 5 0 22 Total 9 56 212 168 37 4 486 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 486 Total Hours for Period 2208 A2.4-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/1/2017 -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 1 0 0 0 0 1 NNE 0 2 1 0 0 0 3 NE 0 2 1 0 0 0 3 ENE 1 0 6 0 0 0 7 E 0 0 5 4 0 0 9 ESE 0 1 4 1 0 0 6 SE 1 0 9 6 0 0 16 SSE 0 1 10 7 0 0 18 s 1 5 13 9 0 0 28 SSW 0 2 6 14 0 0 22 SW 0 2 6 0 0 0 8 WSW 0 4 3 0 0 0 7 w 0 0 2 0 0 0 2 WNW 0 0 0 0 0 0 0 NW 1 0 0 0 0 0 1 NNW 0 1 0 0 0 0 1 Total 4 21 66 41 0 0 132 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 132 Total Hours for Period 2208 A2.4-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 10/1/2017 -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 0 1 0 0 0 0 1 NNE 0 1 0 0 0 0 1 NE 0 0 1 0 0 0 1 ENE 0 2 2 0 0 0 4 E 0 4 0 0 0 0 4 ESE 0 2 4 0 0 0 6 SE 1 5 8 2 0 0 16 SSE 1 6 6 8 0 0 21 s 1 2 13 6 0 0 22 SSW 1 4 10 4 0 0 19 SW 2 5 2 0 0 0 9 WSW 1 4 1 0 0 0 6 w 0 2 0 0 0 0 2 WNW 0 2 1 0 0 0 3 NW 0 3 0 0 0 0 3 NNW 3 1 0 0 0 0 4 Total 10 44 48 20 0 0 122 Calm Hours not Included above for : Total Period 1 Valid Hours for this Stability Class for: Total Period 122 Total Hours for Period 2208 A2.4-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 10/1/2017 -12/31/2017 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19-25 > 25 Total N 2 18 45 12 11 1 89 NNE 2 13 20 9 1 0 45 NE 2 17 21 3 0 0 43 ENE 3 24 43 6 1 0 77 E 5 25 46 17 6 0 99 ESE 5 17 36 17 0 0 75 SE 3 31 76 28 0 0 138 SSE 2 35 98 84 13 1 233 s 3 34 115 81 21 5 259 SSW 3 21 94 72 25 3 218 SW 4 16 35 73 18 0 146 WSW 3 20 28 44 14 17 126 w 3 12 39 56 52 17 179 WNW 2 13 33 85 53 2 188 NW 2 12 27 64 57 7 169 NNW 7 17 25 43 18 13 123 Total 51 325 781 694 290 66 2207 Calm Hours not Included above for : Total Period 1 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 0 Valid Hours for this Stability Class for: Total Period 2207 Total Hours for Period 2208 A2.4-8 OFF-SITE DOSE CALCULATION MANUAL .CHANGES The Off-Site Dose Calculation Manual, PMP-601O-OSD-001, was not revised during this 201 7 reporting period. A3.0-1 ENCLOSURE 2 to AEP-NRC-2018-35 DONALD C. COOK NUCLEAR PLANT UNITS 1 AND 2 2016 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT, Revision 1 TABLE OF CONTENTS Page Table of Contents 1 I. IL III. IV. V. VI. VII. VIII. IX. Introduction 1 Radioactive Releases and Radiological Impact on Man 1 Liquid Releases 2 Gaseous Releases 2 Solid Waste Disposition 3 Meteorological 3 Offsite Dose Calculation Manual (ODCM) Changes 3 Total Dose 3 Radiation Monitors Inoperable Greater Than 30 Days 4 Noteworthy Conditions Identified in 2016 4 Conclusion 6 Errata 6 LIST OF APPENDICES Title Appendix Al.1 2016 Effluent and Waste Disposal Annual Report -Supplemental Information Al.2 Summary of Maximum Individual Doses: First Quarter, Second Quarter, Third Quarter, and Fourth Quarter 2016 Al.3 2016 Groundwater Protection Initiative (GPI) Sample Data A2.1 Hours at Each Wind Speed and Direction: First Quarter, 2016 A2.2 Hours at Each Wind Speed and Direction: Second Quarter, 2016 A2.3 Hours at Each Wind Speed and Direction: Third Quarter, 2016 A2.4 Hours at Each Wind Speed and Direction: Fourth Quarter, 2016 A3.0 Offsite Dose Calculation Manual (ODCM) Changes 1 l I. INTRODUCTION This report discusses the radioactive discharges from Unit 1 and Unit 2 of the Donald C. Cook Nuclear Plant (CNP) during 2016. This is in accordance with the requirements of CNP Technical Specification (TS) 5.6.3. The table below summarizes the pertinent statistics concerning the Plant's operation during the period from January 1, 2016, to December 31, 2016. The data in this table and the descriptive information on plant operation are based upon the respective unit's Monthly Operating Reports, Performance Indicators, and Control Room Logs for 2016. Parameter Unit 1 Unit2 Gross Electrical Energy Generation 8,586,842 7,272,912 (Megawatt Hour (MWH)) Unit Service Factor 90.1 74.1 (Percent(%)) Unit Capacity Factor 91.9 74.5 (Maximum Dependable Capacity (MDC)) Net(%) Unit 1 entered the reporting period in Mode 1 at Nominal Full Power (NFP). Small power adjustments were made to facilitate main turbine valve testing throughout the year. The unit performed a normal downpower and was manually tripped on March 23, 2016, entering refueling outage U1C27. The unit attained criticality on April 27, 2016, and attained NFP on May 2, 2016. The unit exited the reporting period at NFP. Unit 2 entered the reporting period in Mode 1 at NFP. Small power adjustments were made to facilitate main turbine valve testing throughout the year. The unit was manually tripped on July 6, 2016, entering a forced outage due to a steam leak. The unit attained criticality on July 12, 2016, and attained NFP on July 14, 2016. On July 21, 2016, the unit performed a controlled downpower to 48% power at the request of grid operators due to grid conditions, returning to NFP on August 2, 2016. The unit performed a normal downpower and was manually tripped on October 5, 2016, entering refueling outage U2C23. The unit exited the reporting period shutdown. IL RADIOACTIVE RELEASES AND RADIOLOGICAL IMPACT ON MAN Since a number of release points are common to both units, the release data from both units are combined to form this two-unit, Annual Radioactive Effluent Release Report. Appendix Al.I through A2.4 of this report present the information in accordance with Section 5.6.3 of Appendix A to the Facility Operating Licenses, as specified in the Technical Specifications, Regulatory Guide 1.21, and 10 CFR Part 50, Appendix I. The "MIDAS System" is a computer code that calculates doses due to radionuclides that were released from the CNP. 1 All liquid and gaseous releases were well within Offsite Dose Calculation Manual (ODCM) limits and federal limits. There was one abnormal liquid release and no abnormal gaseous releases in 2016. The abnormal liquid release occurred on October 31, 2016, with approximately 1,500 gallons of water leaking past boundary valves on the normal licensed steam generator drainage pathway over a 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months period. The water was Secondary side water contained inside a steam generator, which acts as a heat transfer medium from the Reactor Coolant filled Primary side piping. This steam generator water was subsequently discharged to Lake Michigan via the Circulating Water system. This water contained tritium at 15,000 picocuries per liter, which is below the 20,000 picocurie per liter drinking water limit. Though the nuclide level was low, the leakage was unplanned and met the criteria for being an abnormal release of liquid effluent. The total curies of tritium released from the event were l.71E-04 curies, assuming a conservative 3000 gallons ofreleased water to bound the event. This curie content was added to the liquid release totals and the associated public dose accounted for. Action Request AR# 2016-12597 documented this event and subsequent repairs. The Independent Spent Fuel Storage Installation (ISFSI) impacts are included with Unit 1 and Unit 2 statistics. The ISFSI cask system does not create any radioactive materials or have any radioactive waste treatment systems. Therefore, specific operating procedures for the control of radioactive effluents are not required. Specification 3.1.1, Multi-Purpose Canister (MPC), provides assurance that there are not radioactive effluents from the ISFSI. Liquid Releases During 2016 there were 89 liquid batch releases performed. The number of liquid batch releases for the four quarters in 2016 was 14, 20, 22, and 33, respectively. Estimated doses (in mrem) to maximally exposed individuals via the liquid release pathways are given in Appendix A 1.2 of this report. Gaseous Releases During the first quarter of 2016 there were seven batch releases from Gas Decay Tanks (GDT), one containment purge, one system tank venting, and 134 Containment Pressure Reliefs (CPR). During the second quarter there were three batch releases from GDTs, one system tank venting, and 130 CPR. During the third quarter there were four batch releases from GDTs and 150 CPR. During the fourth quarter there were two batch releases from GDTs, one containment purge, one system tank venting, and 86 CPR. The CPR continue to be listed as batch releases as described in Nuclear Regulatory Commission Inspections 50-315/89017 (DRSS); 50-316/89016 (DRSS) for CNP, dated June 13, 1989. Doses continue to be calculated utilizing continuous criteria as allowed by NUREG-0133. There were a total of 16 GDT releases, two containment purges, three system tank vents, and 500 CPR gaseous batch releases made during 2016. In calculating the dose consequences for continuous and batch gaseous releases during 2016, the meteorological data measured at the time of the release were used. 2 The estimated doses (in mrem) to maximally exposed individuals via the gaseous release pathways are given in Appendix Al.2 ofthis report. For individuals that are within the site boundary, the occupancy time is sufficiently low to compensate for any increase in the atmospheric diffusion factor above that for the site boundary. Solid Waste Disposition There were 33 shipments of radioactive waste made during 2016. These included shipments made from the site to various radioactive waste processors for ultimate disposal. III. METEOROLOGICAL Appendices A2.l, A2.2, A2.3, and A2.4 of this report contain the cumulative joint frequency distribution tables of wind speed and wind direction, corresponding to the various atmospheric stability classes for the first, second, third, and fourth quarters of 2016. Hourly meteorological data is available for review and/or inspection upon request. IV. OFFSITE DOSE CALCULATION MANUAL (ODCM) CHANGES The ODCM, PMP-601O-OSD-001, was not revised during the report period. V. TOTAL DOSE Section 3.2.5 of the ODCM requires that the dose or dose commitment to a real individual from all uranium fuel cycle sources in Berrien County be limited to no more than 25 mrem to the total body or any organ (except the thyroid, which is limited to no more than 75 mrem) over a period of 12 consecutive months to show conformance with the requirements of 40 CPR Part 190. The maximum cumulative dose to an individual from liquid and gaseous effluents during 2016 was well within the ODCM limits. Measurements using thermoluminescent dosimeters (TLD) at 12 onsite stations indicate that the dose due to direct radiation is consistent with preoperational and current control (background) levels. This is fully evaluated in CNP's 2016 Annual Radiological Environmental Operating Report. Additional TLD dosimetry installed by Radiation Protection department programs monitor dose received by individuals on site as visitors. The annual dose to the maximum individual will be estimated by first, summing the quarterly total body air dose, the quarterly skin air dose, the quarterly critical organ dose from iodines and particulates (I&P), the quarterly total body dose from liquid effluents, the . quarterly critical organ dose from liquid effluents, and the Radiological Environmental Monitoring Program onsite direct radiation TLD data. These quarterly values are summed with the annual Carbon-14 dose and compared to the annual total body limit for conservative reasons. The table that follows here represents the above written description: 3 Dose (mrem) 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr I & p 1.15E-02 4.46E-01 4.58E-02 9.34E-02 Total Body Air 1.00E-03 2.30E-04 7.60E-04 5.50E-04 Skin 2.20E-03 4.60E-04 2.60E-03 1.1 OE-03 Liquid TB 1.27E-02 1.32E-02 3.47E-02 1.05E-02 Liquid Organ 1.27E-02 1.32E-02 3.47E-02 1.12E-02 C14 (Annual) 1.97E+OO Direct Radiation 0 0 0 0 Total 4.01 E-02 4.73E-01 1.18E-01 2.09E+OO Grand Total Dose (Total Body or any other Orqan) mrem 2.72E+OO Annual Dose Limit (mrem) 25 Percent of limit 1.09E+01 The following data reflects a comparison with 2009 annual dose data (the last year without calculating C-14 dose),2016 annual dose data, and 2016 annual dose data with C-14 added. This indicates that 2016 annual dose was 'typical' for a dual unit outage year with an extended outage duration in regards to radioactive effluents. The table is presented as follows: Annual Dose (mrem) % of limit 2009 2.60E-01 1.04 2016 7.48E-01 2.99 2016 with C-14 2.72 10.9 VI. RADIATION MONITORS INOPERABLE GREATER THAN 30 DAYS There were no release pathways unmonitored for greater than 30 days. VIL NOTEWORTHY CONDITIONS IDENTIFIED IN 2016 The Inadvertent draining of a steam generator in 2016 was discussed in Section II above as an abnormal release. While noteworthy, it had minimal impact on effluent releases or public dose exposure due to the very low tritium curie content of the water. In addition, it is considered noteworthy that in 2016 two small fuel rodlet defects were identified to have the potential to impact effluents. These defects increased the release of fission product gasses and iodine isotopes into the reactor coolant, which in tum increased activity levels in the effluent streams. The increases contributed to a small impact to the site overall public dose exposure by approximately 1.2% of the limit over the course of the year (2015 was 2.42mRem/ 9.68% oflimit vice 2.72mRem/ 10.9% oflimit in 2016). The public dose due to operations at CNP remain a small fraction of the legal limits and efforts to keep public dose As Low As Reasonably Achievable (ALARA) were largely successful. 4 Carbon-14 Supplemental Information for the 2016 Annual Radioactive Effluent Release Report. C-14 has a 5730 year half-life and is a naturally occurring radionuclide produced by cosmic ray interactions in the atmosphere. C-14 is a relatively low energy beta emitter. Nuclear weapons testing in the 1950s and 1960s significantly increased the amount of C-14 in the atmosphere. C-14 is also produced in commercial nuclear reactors, but the amounts produced are much less than those produced naturally, from weapons testing, or coal burning power plants. The inventory of C-14 in Earth's biosphere is about 300 million Curies, of which most is in the oceans. Since the U.S. Nuclear Regulat01y Commission (NRC) published Regulatory Guide (RG) 1.21, Revision 1, in 1974, the analytical methods for determining C-14 have improved. Coincidentally, the radioactive effluents from commercial nuclear power plants over the same period have decreased to the point that C-14 is likely to be a principal radionuclide in gaseous effluents. Based on these reasons and a desire to adjust policy to align with international standards, the nuclear industry was required to report, starting in 2010, the quantity and dose impact of C-14 here in the United States. The dose will be reported both with and without C-14 so a comparison to 2009 can be made, keeping in mind the differing standards. The quantity of C-14 released to the environment can be estimated by use of a C-14 source term scaling factor based on power generation (Ref. RG 1.21, Revision 2). A recent study recommends a source term scaling factor of approximately 9.0 to 9.8 Curies/GWe-yr for a Westinghouse Pressurized Water Reactor (Ref. EPRI 1021106, "Estimation of Carbon-14 in Nuclear Plant Gaseous Effluents", dated December 23, 2010). A scaling factor of 9.4 Curies/GWe-yr was assumed for this report. Using this source term scaling factor and actual electrical generation (in MWH) produced during 2016 results in a site total of 17 .0 Curies produced. C-14 releases from Pressurized Water Reactors (PWR) occur primarily as a mix of organic carbon (methane) and inorganic carbon ( carbon dioxide). As a general rule, C-14 in the primary coolant is essentially all organic with a large fraction as gas. Any time the primary coolant is exposed to an oxidizing environment ( during shutdown or refueling), a slow transformation from an organic to an inorganic species occurs. Various studies documenting measured C-14 releases from PWRs suggest an average 80% organic fraction with the remainder being carbon dioxide. This equates to 2.38 Curies released as carbon dioxide which is available for the food pathway through photosynthesis to vegetation. Dose is calculated utilizing the methodology prescribed in RG 1.109, Appendix C, with the vegetation dose being the most predominant. A 'p' factor of 0.33 is determined utilizing the time of batch gaseous releases performed during 2016, the time available for photosynthesis in plants, and the assumption that 70% of the C-14 released is from gaseous batch releases. A further reduction to the vegetation and leafy vegetable dose is warranted due to the limited growing season in Michigan, which was conservatively limited to nine months. 5 The final results indicated a calculated organ dose from C-14 to a child at the site boundary of 1.64 mrem to the bone and a whole body dose of 0.326 mrem, for a combined total C-14 dose of 1.97 mrem. This is less than the dose limit of 15 mrem/unit to any organ prescribed in 10 CFR 50, Appendix I, and the 40 CFR Part 190 limit of 25 mrem for total body and for any organ ( ~75 mrem for thyroid). vm. CONCLUSION Based on the information presented in this report, it is concluded that CNP Units 1 and 2 performed their intended design function with no demonstrable adverse effect on the health and safety of the general public. IX. ERRATA There are no errata attached for 2016. Note: This entire document is Revision 1 submitted as "Errata" attached to the 2017 Annual Radioactive Effluent Release Report per Corrective Action 2017-4835. This new revision completely replaces the previously submitted report. This errata was necessitated due to problems identified with equipment utilized for counting tritium samples dating back to 2013. The alterations changed the overall public dose calculated from 2.71 millirems (10.8% of the 40 CFR190 allowable dose limits) to 2.72 millirems (10.9% of the 40CFR190 allowable dose limits). There were no adverse impacts to public health or safety by this minor change to dose. 6 2016 Effluent and Waste Disposal Annual Report SUPPLEMENTAL INFORMATION Facility: Donald C. Cook Nuclear Plant Licensee: Indiana Michigan Power Company 1 REGULATORY LIMITS l. 1 Noble Gases The air dose in unrestricted areas due to noble gases released in gaseous effluents shall be limited to the following: 1.1.l During any calendar quarter, to s 5 mrad/unit for gamma radiation and~ 10 mrad/unit for beta radiation. 1.1.2 During any calendar year, to s 10 mrad/unit for gamma radiation ands 20 mrad/unit for beta radiation. 1.2 Iodines -Particulates 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 effluents released to unrestricted areas shall be limited to the following: 1. 2 .1 During a_ny calendar quarter to s 7. 5 mrem/uni t to any organ. 1.2.2 During any calendar year to s 15 mrem/unit to any organ. 1. 3 Liquid Effluents The dose or dose commitment to an individual from radioactive material in liquid effluents released to unrestricted areas shall be limited: 1.3.1 During any calendar quarter to s 1.5 mrem/unit to the total body and to s 5 mrem/unit to any organ. 1.3.2 During any calendar year to s 3 mrem/unit to the total body and to s 10 mrem/unit to any organ. Al.l-1 I I* ! -I I 2016 Effluent and Waste Disposal Annual Report 1.4 Total Dose The dose or dose commitment to a real individual 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 12 consecutive months. 2 MAXIMUM PERMISSIBLE CONCENTRATIONS 2.1 Gaseous Effluents The dose rate due to radioactive materials released in gaseous effluents from the site shall be limited to the following: 2.1.1 For noble gases: 500 mrem/yr to the total body and 3000 mrem/yr to the skin. 2.1.2 For all radioiodines and for all radioactive materials in particulate form and radionuclides (other than noble gases) with half-lives greater than eight days: 1500 mrem/yr to any organ. The above limits are provided to insure that radioactive material discharged in gaseous effluents will not result in the exposure of an individual in an unrestricted area to annual average concentrations exceeding the limits in 10 CFR Part 20, Appendix B, Table 2, Column 1. 2.2 Liquid Effluents The concentration of radioactive material released at any time from the site to unrestricted areas shall be limited to 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 2 x 10-4 µCi/ml total activity. Al.1-2 I I 1 l 2016 Effluent and Waste Disposal Annual Report 3 AVERAGE ENERGY The average energy (E) of the radionuclide mixture in releases of fission and activation gases as defined in Regulatory Guide 1.21, Appendix B, Section A.3 is not applicable because the limits used for gaseous releases are based on calculated dose to members of the public. Release rates are calculated using an isotopic mix from actual samples rather than average energy. 4 MEASUREMENTS and APPROXIMATIONS of TOTAL RADIOACTIVITY 4.1 Fission and Activation Gases Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. 4. 2 Iodines Sampled on iodine adsorbing media, and analyzed on an 8192 channel analyzer and HpGe detector. 4.3 Particulates Sampled on a glass filter and analyzed on an 8192 channel analyzer and HpGe detector. Sr-89 and Sr-90 analyses are performed by offsite vendor. 4 . 4 Liquid Effluents Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. Fe-55, Sr-89 and Sr-90 analyses are performed by an offsite vendor. Ni-63 is also currently being analyzed by the offsite vendor in response to evaluation of the 10 CFR 61 sample results. Al.1-3 L 2016 Effluent and Waste Disposal Annual Report 5 BATCH RELEASES 5.1 Liquid 5 .1.1 Number of batch releases: 14 releases in the 1st quarter, 2016 -20 releases in the 2"rl quarter, 2016 22 releases in the 3n1 quarter, 2016 33 releases in the 4th quarter, 2016 5.1.2 Total time period for batch releases: .§l_,, 822 minutes 5 .1.3 Maximum time for a batch release: 1,814 minutes 5.1.4 Average time period for batch release: 695 minutes 5.1.5 Minimum time period for a batch release: 91 minutes 5.1.6 Average stream flow during periods of release of effluent into a flowing stream: 6.44E+5 gpm circulating water Al.1-4 2016 Effluent and Waste Disposal Annual Report 5. 2 Gaseous 5.2.1 Number of batch releases: 143 releases in the 1st quarter, 2016 --134 releases in the 2nd quarter, 2016 154 releases in the 3rd quarter, 2016 90 releases in the 4th quarter, 2016 5.2.2 Total time period for bat.ch releases: 7,392 minutes 5.2.3 Maximum time for a batch release: 354 minutes 5.2.4 Average time period for batch release: 14 minutes 5.2.5 Minimum time period for a batch release: 1 minutes Al.1-5 2016 Effluent and Waste Disposal Annual Report. 6 ABNORMAL RELEASES 6 .1 Liquid 6.1.1 Number of Releases: 1st Quart.er 0 2nd Quarter 0 3rd Quarter 0 4"" Quarter l* 6.1.2 Tot.al activity released (Ci}: 6 .2 Gaseous l3l Quarter 0 2"d Quarter 0 6.2.1 Number of Releases: 1st: Quarter 0 2nd Qua:r:_!:e!: 0 3rrJ Quarter 0 4 u-..... _Quarter 1.7le-04 3rd Quarter

4Lh Quarter 0 0 6.2.2 Total activity released (Ci): 1st Quarter 0 2'"1 Quarter 0

Discussed on page 2 of this document.. Al.1-6 3rd Quarter._: 0 4th Quarter 0 2016 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! 11. FISSION GASES I H3 AR41 KR85 XE133 XE135 XE131m XE133m XE135m I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES I131 I132 I133 I Ci I Ci I Ci !Total for Period I Ci 13. PARTICULATES MN54 C060 CS137 I Ci I Ci I Ci !Total for Period I Ci 1.91E+Ol 3.00E-01 7.12E-06 1.03E+Ol 2.68E-01 3.00E+Ol 6.68E-05 6.79E-05 1.35E-04

DENOTES SUPPLEMENTAL ISOTOPES 1. 92E+Ol 8.12E-07 3.65E-02 4.00E+OO 2.92E-01 7.05E-03 4.67E-04 2.35E+Ol 1. 05E-03 5.76E-06 1.44E-04 1. 20E-03 Al.1-7 2.51E+Ol 3.61E-02 2.51E+Ol 2.83E-05 2.21E-04 2.49E-04 6.lBE+Ol 1. 55E+OO 6.34E+Ol 9.69E-04 2.52E-03 1.0BE-05 3.50E-03 2016 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES BATCH MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! 11. FISSION GASES I H3 AR41 KR85 XE131M XE133M XE133 XE135m XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES I131 I133 I Ci I Ci !Total for Period I Ci 13. PARTICULATES CS137 I

BR82 I Ci I Ci !Total for Period I Ci 2.83E-01 2.86E-01 4.57E-01 1.98E-02 7.0lE-03 1.67E+00 2.24E-03 2.73E+OO 1.33E-08 1. 33E-08

DENOTES SUPPLEMENTAL ISOTOPES 1.28E-01 1. 33E-01 8.70E-01 5.55E-03 1. 99E-01 2.83E-04 5.57E-03 1.34E+00 1.28E-02 1. 28E-02 Al.1-8 1.1 7E-01 2.24E-01 9.24E-01 3.24E-01 8.02E-03 1.60E+OO 2.32E-01 2.lBE-01 3.97E-01 3.04E-03 3.BlE-01 7.16E-04 2.20E-02 1. 25E+00 2016 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES Units 1st 2nd 3rd 4th [Est. I Quarter I Quarter I Quarter I Quarter [Total I I I I [Error,%[ [A. [FISSION AND I [ACTIVATION GASES I fl. [Total Release I Ci I 1.34E+Ol[ 5.56E+00[ 1.52E+00[ 2.57E+00[ 11.4 [2. [Average release I [rate for period fuCi/secf 1.71E+001 7.07E-01[ 1.91E-01[ 3.23E-011 I I I I I I 13. [Percent of I% Gamma I 6.77E-021 1.34E-02[ 2.60E-02[ 3.llE-02[ !applicable limit* I Beta I 4.95E-021 9.26E-031 7.22E-02[ 3.22E-02[ fB. I IODINES fl. I Total I-131 I Ci I 6.39E-051 l.38E-021 1.48E-041 9.69E-04[ 12.8 [2. !Average release I [rate for period fuCi/secf 8.12E-061 l.76E-03[ 1.86E-05[ l.22E-04[ I I I I I I 13. I Percent of I % I [applicable limit* I fC. [PARTICULATES fl. [Particulates with[ Ci I [half lives>8 days[ I 2.31E-05[ 5.02E-031 5.31E-05[ 3.48E-04[ I I I I I I O.OOE+OO[ O.OOE+OOI O.OOE+OO[ O.OOE+OO[ N/A I I I I I [2. [Average release I Irate for period [uCi/secl O.OOE+OOI O.OOE+OOI O.OOE+OO[ O.OOE+OO[ I I I I I I 13. [Percent of I % I [applicable limit* I 14. [Gross alpha I !radioactivity ID. [TRITIUM I Ci I I Ci I O.OOE+OOI O.OOE+OOI O.OOE+OO[ O.OOE+OOI I I I I I f<7.98E-07[<6.25E-07f<8.16E-07[<8.91E-07[ I I I I I I 1.94E+Oll 1.93E+Oll 2.52E+Oll 6.19E+Oll 12.6 fl. I Total Release [2. [Average release I [iate for period [uCi/secf 2.47E+00[ 2.46E+OOI 3.17E+OOI 7.79E+OOI I I I I I I 13. [Percent of I % !applicable limit* I I 1.41E-021 l.40E-021 1.SlE-021 4.44E-021 I I I I I

Applicable limits are expressed in terms of dose. See Appendices Al.2-1 through Al.2-4 Al.1-9 2016 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CS137 I Ci I Ci 7.63E-03 BATCH MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CRSl MNS4 FESS COSS C060 NI63 I *KRBS ZR9S NB9S M099 TC99m AGllOm SB124 SB12S CS134 CS137 Il31 I *XE133 I *XE133m I *XE13lm I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci 3.67E+02 8.S6E-06 9.00E-OS 3.00E-04 1. 36E-OS 3.79E-06 4.0SE-06 4.60E-04

DENOTES SUPPLEMENTAL ISOTOPES 4.19E+02 2.32E-06 7.38E-OS l.39E-04 S.43E-07 2.64E-OS 6.86E-06 8.27E-06 2.0SE-OS 3.67E-03 l. lBE-OS l.38E-04 Al.1-10 l.26E+03 l.28E-06 2.30E-0S 2.33E-OS 7.BBE-06 8.lBE-06 2.13E-06 3.BBE-03 l.84E-OS 2.BBE+02 l.69E-06 2.09E-04 6.86E-OS l.94E-06 l. llE-06 8.49E-06 4.62E-OS 4.S9E-OS 1. 74E-04 3.69E-06 4.BOE-03 2.86E-OS S.78E-OS IA. I FISSION AND I I ACTIVATION I I PRODUCTS 11. !Total Release 12. !Average diluted I I concentration I lduring period J3. I Percent of 2016 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES BATCH MODE Units 1st 2nd 3rd 4th I Est. I Ci luCi/ml I I % I Quarter I Quarter I Quarter I Quarter !Total I I I I IError,%1 I 4.20E-041 2.78E-041 6.57E-051 5.61E-04I 12.6 2.16E-lll 9.58E-121 9.95E-131 l.55E-lll I I I I I I I I I !applicable limit I I 2.05E-041 2.88E-041 l.92E-051 7.32E-041 I I I I I I B. I TRITIUM 11. !Total Release J2. !Average diluted I I concentration I lduring period 13. I Percent of I Ci luCi/ml I I % I 3.67E+021 4.19E+02J l.26E+031 2.88E+021 10.1 l.88E-051 l.44E-051 l.91E-051 7.95E-06J I I I I I I I I I !applicable limit I I l.88E+OOJ l.44E+OOI 1.91E+OOI 7.95E-011 I I I I I JC. I DISSOLVED AND I !ENTRAINED GASES 11. I Total Release 12. !Average diluted I I concentration I lduring period I 3. I Percent of I Ci luCi/ml I I % I 4.60E-041 3.82E-03J 3.90E-031 4.89E-031 11.4 I 2.36E-111 2.12E-111 l.16E-111 1.35E-101 I I I I I I I I I !applicable limit I I 1.18E-05J 1.06E-051 5.BOE-061 6.74E-05J I I I I I I D. I GROSS ALPHA I I RADIOACTIVITY I JTOTAL RELEASE IE. IVOLUME OF WASTE I I RELEASED I F. I VOLUME OF I !DILUTION WATER I I USED DURING I IPERIOD Ci l<l.09E-041<1.47E-041<8.17E-051<3.81E-051 N/A I I I I I I I I I I I Liters! l.34E+061 7.47E+061 1.67E+061 1.92E+061 I I I I I I Liters I I I I 1. 95E+10 I I I I 1. 80E+ll I I I I Al .1-11 3. 36E+ll I I I I 3.63E+101 I I I 2.00 I I 3.48 IA. I FISSION AND I !ACTIVATION I !PRODUCTS 11. !Total Release 12. !Average diluted I !concentration I !during period 13. !Percent of 2016 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES CONTINUOUS MODE Units 1st 2nd 3rd 4th !Est. I Ci [uCi/ml I I % I Quarter I Quarter I Quarter I Quarter !Total I I I I !Error,%! I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI N/A O.OOE+OO[ 0.00E+OO[ O.OOE+OOI O.OOE+OOI I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OOI O.OOE+OOI 0.00E+OOI I I I I I IB. !TRITIUM 11. !Total Release 12. !Average diluted I !concentration I !during period 13. !Percent of I Ci luCi/ml I I % I O.OOE+OOI 7.63E-031 O.OOE+OOI O.OOE+OOI 22.8 O.OOE+OOI 5.07E-111 O.OOE+OOI 0.00E+OO[ I I I I I I I I I !applicable limit I I O.OOE+OOI 5.07E-061 O.OOE+OOI O.OOE+OOI I I I I I IC. !DISSOLVED AND I [ENTRAINED GASES [1. !Total Release 12. [Average diluted I [concentration I [during period [3. [Percent of I Ci luCi/ml I I % I O.OOE+OOI O.OOE+OO[ 0.00E+OO[ O.OOE+OO[ N/A O.OOE+OOI O.OOE+OOI O.OOE+OOI 0.00E+OOI I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OO[ O.OOE+OOI O.OOE+OO[ I I I I I ID. I GROSS ALPHA I !RADIOACTIVITY I [TOTAL RELEASE IE. !VOLUME OF WASTE I [RELEASED IF. [VOLUME OF I [DILUTION WATER I !USED DURING I !PERIOD Ci O.OOE+001<5.69E-041 O.OOE+OOI O.OOE+OOI N/A I I I I I I I I I Liters[ O.OOE+OOI 6.36E+061 O.OOE+OO[ O.OOE+OOI I I I I I I Liters! I I I O.OOE+OO[ I I I 1.51E+lll I I I Al.1-12 O.OOE+OOI I I I O.OOE+OOI I I I 2.00 I I 3.48 2016 Effluent and Waste Disposal Annual Report . . J "'======~-~==S=o=l=id=W=a=st=e=a=n=d=l=rr=a=d=ia=te=d=F=ue=l=S=h=i=pm=e=nt=s===-=-=-= _ --**------~ Solid Waste Shipped Offsite for Burial or Disposal 1) Type of Waste Unit Estimated amount Estimated Total Error,% --. --a) Spent resins, filters, sludge, m3 1.34E+01 1.00E+OO evaporator bottoms, etc. Curies 1.26E+02 3.75E+OO ---~-b) Dry compressible waste, m3 1.09E+03 1.00E+OO contaminated equipment, etc. Curies 1.87E+OO 6.48E+OO ---Irradiated components, control m3 c) Curies rods, etc. -d) Other (contaminated soil) m3 Curies ~~--M------------1 2) Estimate of Principle Radionuclide Composition --a) H-3 9% Co-58 1% Sb-125 1% Cs-137 / 1% Mn-54 0.5 % Co-60 19 % Cs-134 0.5 % Fe-55 13 % Ni-63 54% C-14 1% -b) Ni-59 1% Co-58 1% Sb-125 4% Mn-54 1% Co-60 39.5% Zr/Nb-95 2% Fe-55 36% Ni-63 12.5% Cs-137 2.5 % C-14 0.5 % 3) Solid Waste Disposition -. -. Mode of Transportation Destination 25 Truck Oak Ridge, TN 1 Truck Erwin, TN **-* 2 Truck Clive, UT 5 Truck Wampum, PA 4) Type of Containers used for Shipment: Containers used are excepted packages, Type A, Sea Land, metal boxes, drums, tankers, and hi h inte rit containers (HICs). 5) Solidification Agent: There were no solidifica~ions performed during this report period. AI.1-13 -I ( I I !

[-2016 Eftl~ent and Waste Disposal Am;~al Report Yearly Release --1 _ Rates . . --* -*--~ . -----GASES .. *---*-. .. Fission and Activation Gases Total Release 2.3 IE+Ol Curies .--Average Release Rate 7 .3IE-01 ~tCi/sec f----% of Applicable Limits

y 3.46E-02 % !3 4.08E-02 % *-* *-*-... --* Iodines Total 1-131 Release I .50E-02 Curies ---~--"" Average Release Rate 4.75E-04 ~tCi/sec % of Applicable Limit* I .99E+OO % ~* Particulates Total Release 0.00E-00 Curies Average Release Rate O.OOE-00 ~tCi/sec % of Applicable Limit* O.OOE-00 % LIQUIDS ----Fission and Activation Products Total Release I .32E-03 Curies Average Diluted Concentration 8.78E-12 µCi/ml % of Applicable Limits

Total Body l .07E+OO % Organ 3 .23E-01 %

Applicable limits are expressed in terms of the annual 10 CFR 50, Appendix I, dose limits. Al.1-14 ... ------I ----

Site Boundary and Nearest Residence Listing The following distances were used in the calculation of the maximum individual doses: Sector Direction Bo:1;1ndary (Meters) Nearest Residence (Meters) -*~*--*-* A N 651 659 B NNE 617 660 C NE 789 943 D ENE 1497 1747 E E 1274 1716 F ESE 972 1643 G SE 629 1640 H SSE 594 964 J s 594 997 K SSW 629 942 Al.1-15 Summary of Maximum Individual Doses First Quarter 2016 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 1.27E-02 Child Receptor 1 8.47E-01 1.5E+O Liquid Liver 1.27E-02 Child Receptor 1 2.55E-01 5.0E+O Noble Gas Air Dose 3.39E-03 Any 594 (SSE) 6.77E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 4.95E-03 Any 594 (SSE) 4.95E-02 1.0E+l (Beta-mrad) Age Iodines and Thyroid l.15E-02 Child 659 (N) 1.53E-Ol 7.5E+O Particulates Al.2-1 Summary of Maximum Individual Doses Second Quarter 2016 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 1.32E-02 Child Receptor 1 8.SOE-01 l.5E+O Liquid Liver l.32E-02 Child Receptor 1 2.65E-01 5.0E+O Noble Gas Air Dose 6.70E-04 Any 594 (S) l.34E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 9.26E-04 Any 594 (S) 9.26E-03 l.OE+l (Beta-mrad) Age Iodines and Thyroid 4.46E-01 Child 997 (S) 5.95E+OO 7.5E+O Particulates Al.2-2 Summary of Maximum Individual Doses Third Quarter 2016 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 3.47E-02 Child Receptor 1 2.3 lE+OO l.5E+O Liquid Liver 3.47E-02 Child Receptor 1 6.95E-01 5.0E+O Noble Gas Air Dose l.30E-03 Any 651 (N) 2.60E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 7.22E-03 Any 594 (SSE) 7.22E-02 1.0E+l (Beta-mrad) Age Iodines and Thyroid 4.58E-02 Child 659 (N) 6.llE-01 7.5E+O Particulates Al.2-3 Summary of Maximum Individual Doses Fourth Quarter 2016 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 1.05E-02 Child Receptor 1 6.98E-01 1.5E+O Liquid Liver 1.12E-02 Child Receptor 1 2.24E-01 5.0E+O Noble Gas Air Dose 1.55E-03 Any 594 (S) 3.llE-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 3.22E-03 Any 594 (S) 3.22E-02 1.0E+l (Beta-mrad) Age Iodines and Thyroid 9.34E-02 Child 659 (N) l.25E+OO 7.5E+O Particulates Al.2-4 L_ _____ _

Date 03/10/2016 06/29/2016 12/06/2016 12/12/2016 2016 GP! Sample Data Samples analyzed for tritium. Values noted are in 111 icrocuries per milliliter (uCi/mL) Lower Limit of Detection= LLD MW-22D MW-MW-22S MW-24D MW-MW-24S MW-25D 22M 24M <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD MW-25M <LLD <LLD (Nole: Wells MW-22 through MW-27 are multi-po11 wells installed in the rail of 2009, with three sample points placed al different depths. S= Shallow M= Middle D=' Deep.) (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally nagged and documented in the analysis section.) Date 03/10/2016 12/06/2016 2016 GPI Sample Data Samples analyzed for tritium. Values noted are in rnicrocuries per milliliter (uCi/mL) Lower Limit of Detection= LLD MW-25S <LLD <LLD MW-26D <LLD <LLD MW-26M <LLD <LLD MW-26S <LLD <LLD MW-27D <LLD <LLD MW-27M <LLD <LLD MW-27S <LLD <LLD (Note: Wells MW-22 through MW-27 are rnulti-po1t wells installed in the Fall of 2009, with three sample points placed at different depths. S= Shallow M= Middle D= Deep.) (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) A 1.3-1 2016 GP! Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD Date W-1 W-2 W-3 W-4 W-5 W-6 W-7 W-8 01/05/2016 <LLD <LLD 01/06/20!6 <LLD 01/08/2016 <LLD <LLD 01/15/2016 <LLD <LLD <LLD 02/03/2016 <LLD 03/11/2016 <LLD 03/31/2016 <LLD <LLD 04/07/2016 <LLD <LLD 04/14/2016 <LLD <Ll,D <LLD <LLD 05/05/2016 <LLD 06/28/2016 <LLD <LLD 06/29/2016 <LLD <LLD <LLD 06/30/20 ! 6 <LLD <LLD <LLD 08/11/2016 <LLD 09/01/2016 <LLD I 0/07/2016 <LLD <LLD <LLD I0/19/2016 <LLD J0/20/2016 <LLD <LLD 10/21/2016 <LLD <LLD J 1/18/2016 <LLD 12/09/2016 <LLD (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally nagged and documented in the analysis section.) Al.3-2 I I I 2016 GP! Sample Data Samples analyzed for tritium. Values noted are in microcurics per milliliter (uCi/mL) Lower Limit of Detection= LLD Date SG-J SG-2 SG-4 SG-5 EW-19 MW-20 MW-21 EW-18 01/06/2016 <LLD <LLD <LLD <LLD <LLD 01/07/2016 <LLD <LLD 03/10/2016 <LLD 03/31/2016 <LLD <LLD 04/05/2016 <LLD 04/07/2016 <LLD <LLD <LLD <LLD 06/28/2016 <LLD <LLD 06/29/2016 <LLD <LLD <LLD <LLD 07/11/2016 <LLD 08/05/2016 <LLD 10/20/2016 <LLD <LLD 10/21/2016 <LLD <LLD <LLD <LLD 12/07/2016 <LLD (Note: A "*1' symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) 2016 GP! Sample Data Samples analyzed for tritium. Values noted arc in rnicrocuries per milliliter (uCi/mL) Lower Limit of Detection= LLD Date OW-1 OW-2 OW-4 MW-28 MW-29 02/03/2016 <LLD <LLD <LLD 1.25e-6 <LLD 03/11/2016 <LLD <LLD <LLD 1.22e-6 <LLD 04/14/2016 <LLD 04/21/2016 <LLD <LLD l .34e-6 <LLD 05/05/2016 <LLD <LLD l.22e-6 <LLD 06/06/2016 <LLD <LLD l.33e-6 * <LLD* 07/22/2016 <LLD <LLD <LLD l.08e-6 <LLD 08/09/2016 <LLD <LLD 1. I Se-6 <LLD 09/15/2016 <LLD <LLD <LLD <LLD 09/21/2016 <LLD I 0/07/2016 <LLD 11/21/2016 <LLD <LLD <LLD <LLD 12/06/2016 <LLD 9.48e-7 <LLD 12/13/2016 <LLD (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) A 1.3-3 2016 GP! Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection = LLD Date W-9 W-10 W-11 W-12 W-13 W-14 W-15 01/06/2016 <LLD <LLD 01/07/2016 <LLD <LLD <LLD <LLD Ol/08/2016 <LLD <LLD 03/31/2016 <LLD <LLD <LLD <LLD <LLD 04/07/2016 <LLD <LLD 06/28/2016 <LL[) <LLD <LLD <LLD <LLD 06/29/2016 <LLD <LLD 10/19/2016 <LLD <LLD <LLD <LLD <LLD <LLD 10/21/2016 <LLD (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results aho\ic LLD will be additionally nagged and documented in the analysis section.) Analysis of the Sample Data The Groundwater Protection Initiative (GPl) Sample Data for 20 I 6 indicates no groundwater contamination in excess of the reporting threshold of2.00E-5 uCi/mL for tritium. Gamma spectroscopy was perfo1111ed on all Radiological Environmental Monitoring Program wells quarterly. Those results are not actual GP! results so are not included in the ARERR, but are part of CNP's 2016 Annual Radiological Environmental Operating Report. There were no positively identified gamma radionuclides from plant effluents detected in any of the GP! well samples, and a single we] I with trace levels of tritium just above detection limits. The LLD value used for tritium counting of the samples varied between 9.42E-7 and 9.59E-7uCi/mL, depending on which scintillation counter was used. This is well below the required maximum LLD value of2.00E-6 uCi/mL per the ODCM. No tritium values were found significantly above LLD for 2016, though values found above the LLD are not . abnormal, unexpected, or inconsistent with past sampling history. The samples observed above LLD historically were expected results from the release oftritiated water into the Absorption Pond, a licensed pathway and pm1 of plant design, or the result ofrecapture deposition of tritium from licensed radioactive gaseous release points. The 2016 results were within expected parameters considering the reduction in tritium released to the Absorption Pond and typical rainfall recapture of tritium experienced. Wells located inside the Protected Area of the plant are subject to recapture deposition of tritium and may show occasional sample results above LLD values following rainfalls and snow melt. The results observed in 2016 continue to reflect normal expectations and behaviors as they relate to recaptured tritium for the weather conditions observed in 2016. Well MW-28 lies close to the vent stacks in the predominant wind direction, so it is expected to observe recaptured tritium from precipitation periodically. The sample data indicates that no radioactive spills or unidentified leaks have occurred in 2016 impacting groundwater. The sample 1:esults indicate proper well placement to ensure the protection of the groundwater and early identification of any abnormal conditions involving groundwater. This is validated by the demonstrated ability to monitor percolation from the Absorption Pond and recaptured tritium in precipitation, with flow direction and behavior acting as described in the plant licensing documents. A I.3-4 Site: AEP Cook Joint Frequency Distribution Hours at Each \Vinci Speed and Direction Total Period Period of Record= 01/01/2016 -03/31/2016 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable \Vinci Speed (mph) Wind Direction t-4 4-8 8 -13 IJ -19 19-25 > 25 Total N 1 4 19 9 I 3 37 NNE 0 I 2 1 () 0 4 NE 0 2 6 2 () 0 10 ENE 0 I 8 3 0 0 12 E 0 6 12 I 0 0 19 ESE I 5 7 4 0 0 17 SE 0 3 8 7 I 0 19 SSE 0 4 16 12 0 0 32 s 0 2 17 14 2 0 35 SSW 0 I 5 18 3 0 27 SW 0 2 5 16 I 1 25 WSW 0 10 15 13 3 3 44 w 0 6 14 16 1 0 37 WNW 1 9 IO 10 8 0 38 NW 1 9 20 14 6 3 53 NNW 1 9 22 7 0 0 39 Total 5 74 186 147 26 10 448 Calm I-lours not Included above for: Total Period 2 Vnlid Hours for this Stability Class for: Total Period 448 Total Hours for Period 2184 A2.1-1 Site: AEP Cook .Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record"" 01/01/2016 -03/31/2016 Elevation: Speed: SPD60Jvl Direction: DIR60M Lapse: DT60M Stnbility Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction I -4 4-8 8 -1.3 13 -19 19 -25 > 25 Total N 0 4 7 3 0 0 14 NNE 0 I 0 I 0 0 2 NE 0 3 2 l 0 0 6 ENE I 2 2 I 0 7 E 0 3 4 3 2 0 12 ESE 0 I 0 I 0 0 2 SE 0 2 I 0 0 0 3 SSE l l 6 2 0 0 10 s 0 4 3 3 3 0 13 SSW 0 3 2 5 I 12 SW 0 5 3 9 2 0 19 WSW 1 I 7 9 4 1 23 w 4 15 18 0 41 .) WNW I 0 4 1 I 13 0 29 NW 0 I 5 6 7 5 24 NNW 0 2 10 8 I l 22 Total 5 34 60 76 56 8 239 Cnlm Hours not Included above for : Total Period 2 Valid Hours for this Stability Class for: Total Period 239 Total Hours for Period 2184 A2.1-2 Site: AEI' Cook ,Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Recnnl = 01/01/2016 -03/3 I /20 16 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction LJ 4-8 8-U 13 -19 19 -25 > 25 Total N l 3 10 13 4 0 31 NNE 0 6 3 l 0 l 1 NE 1 2 5 5 0 14 ENE I 2 1 0 0 0 4 E 0 2 2 1 1 0 6 ESE 0 I 3 9 2 1 16 SE 6 6 9 0 0 22 SSE 0 [ 15 4 0 0 20 s 0 3 8 6 0 18 SSW 0 3 3 7 4 18 SW 0 I 5 4 0 0 10 WSW 0 4 2 3 5 15 w 0 l 6 21 12 J 43 WNW 0 1 7 41 24 3 76 NW 3 5 16 20 2 47 NNW 0 2 28 24 5 60 Total 5 35 82 . 170 102 17 411 Calm Hours not Included above for: Total Period 2 Valid Hours for this Stability Class for: Total Period 411 Tot11I Hours for Period 2184 A2.1-3 Site: AEP Cook .Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = Ol/01/2016 -03/31/2016 l~levation: Speed: SPD60M Direction: DIR60M Lnpsc: DT60iVI Stability Clnss D Delta Temperature Neutral Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19-25 > 25 Totnl N 0 11 15 2 2 3 33 NNE 0 6 17 4 2 0 29 NE 0 6 5 0 0 12 ENE I 2 3 0 0 7 E 2 3 3 9 2 0 19 ESE 1 5 12 6 8 2 34 SE 2 4 19 9 4 I 39 SSE I 5 22 9 5 2 44 s 0 6 20 40 11 3 80 SSW 1 5 16 56 15 0 93 SW l 4 16 21 12 3 57 WSW 0 3 19 14 15 13 64 w I I 1 11 4 1 19 WNW 0 3 3 16 7 30 NW I 3 9 14 5 33 NNW 2 2 13 16 16 7 56 Total 13 64 194 233 108 37 649 Calm Hours not lncluclecl above for: Totnl Period 2 Valid Hours for this Stability Class for: Total Period 649 Total Hour~ for Period 2184 A2.1-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2016 -03/3 I /2016 Elew1tion: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind S1>eed (mph) Wind Direction I -4 4-8 8-13 13 -19 19-25 > 25 Total N 2 0 4 0 0 0 6 NNE 0 5 8 0 0 0 13 NE 0 10 7 3 0 0 20 ENE I 6 7 I 0 0 15 E 0 I 13 0 0 0 14 ESE 0 3 14 1 I 0 19 SE 0 9 15 I I 0 0 35 SSE 0 2 24 16 0 0 42 s 0 3 14 18 I 37 SSW 0 0 20 18 4 0 42 SW I 2 9 I 5 0 18 WSW I 2 6 3 0 3 15 w 0 0 I I 0 0 2 WNW 0 I 3 0 0 0 4 NW 1 I 0 0 0 3 NNW 0 5 2 0 0 1 8 Total 6 50 148 73 II 5 293 Calm Hours not Included above for: Total Period 2 Valid Hours for this Stability Class for: Total Period 293 Total Hours for Period 2184 A2.1-5 Sile: AEP Cook ,Joint Frec1uency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record == 01/01/2016 -03/3 I /2016 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Della Tcmptmtture Moderately Stable Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 1 0 0 0 0 J. NNE I 2 2 0 0 0 s NE 0 0 .., 0 0 0 .., .J .J ENE 0 l 0 0 0 2 E 0 1 J 0 0 0 4 ESE 0 2 7 0 0 0 9 SE 0 2 7 2 0 0 11 SSE 0 3 4 4 0 0 11 s 0 4 5 2 0 0 11 SSW 0 2 0 6 0 0 8 SW 0 0 0 l 0 0 1 WSW I 0 1 0 0 0 2 w 0 0 0 0 0 0 0 WNW 0 2 0 0 0 0 2 NW 0 l 0 0 0 0 I NNW 0 J 0 0 0 2 Total 2 22 34 15 0 0 73 Calm Hours not lncluclecl above for: Total Period 2 Valid Hours for this Stability Class for: Total Period 73 Total Hours for Period 2184 A2.1-6 Site: AEP Cook .Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record "" 01/01/2016 -03/31/2016 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class G Delta Tcmµcralure Extremely Stable \Vind Speed (m1)h) Wind Direction LJ 4-8 8 -13 13 -19 19-25 > 25 Total N I 0 0 0 0 0 I NNE 0 0 0 0 0 0 0 NE 0 I 0 0 0 0 ENE 0 I 0 I 0 0 2 E 0 2 2 0 0 0 4 ESE 0 3 5 0 0 0 8 SE 0 2 3 0 0 6 SSE 0 0 2 0 0 3 s I 0 1 0 0 0 2 SSW 0 0 4 I 0 0 5 SW 0 1 5 0 0 0 6 WSW 2 0 l () 0 0 3 w 0 0 0 0 2 WNW I 0 () 0 0 2 NW 0 2 0 0 0 .., J NNW 0 0 () 0 0 Total 5 14 25 5 0 0 49 Calm Hours not Included above for: Total Period 2 Valid Hours for this Stability Class for: Total Period 49 Total Hours for Period 2184 A2.1-7 Site: AEP Cook Joint Frequency Distribution Hours a! Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record "" 01/01/2016 -03/3 1/2016 Elevation: Speed: SPD60iVI Direction: DIR60M Lapse: DT60M Della Temperature Wind Speed (mph) Wind Direction !...:...1 4-8 8 -13 13 -19 19-25 > 25 Total N 5 23 55 27 7 6 123 NNE 1 16 35 9 ... 0 64 j NE 18 26 16 5 0 66 ENE 4 14 22 8 0 49 E 2 18 39 14 5 0 78 ESE 2 20 48 21 11 3 105 SE 3 28 59 39 5 I 135 SSE 2 16 88 49 5 2 162 s 22 68 83 17 5 196 SSW 12 51 108 31 2 205 SW 2 15 43 52 20 4 136 WSW 5 20 51 42 27 21 166 w 2 13 26 64 35 4 144 WNW 3 17 27 78 52 4 181 NW 4 19 42 50 38 11 164 NNW ... 22 49 59 41 14 188 .J Total 41 293 729 719 303 77 2162 Calm Hours not lnclucled above for: Total Period 2 Vnriable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 20 Valid Hours for this Stability Class for: Total Period 2162 Total Hom*s for Period 2184 A2.1-8 Site: AEP Cook ,Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2016 -06/30/2016 Elevation: Speed: SPD60M Direction: D!R60M Lapse: DT60M Stability Class A Ddla Temperature Extremely Unstable Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 23 24 2 I 53 .) NNE 0 0 0 1 0 0 1 NE 0 0 5 2 0 0 7 ENE 0 2 0 2 () 0 4 E 0 5 5 15 2 0 27 ESE 2 3 15 8 1 0 29 SE 0 6 6 8 3 0 23 SSE 0 I 11 8 0 0 20 s 0 2 6 3 2 1 14 SSW 0 0 I 2 2 () 5 SW 0 0 3 4 3 0 10 WSW 0 2 11 12 0 0 25 w 0 4 11 5 0 I 21 WNW 0 3 5 4 0 1 13 NW 0 6 15 11 7 0 39 NNW 0 9 37 20 7 8 81 Total 2 46 154 129 29 12 372 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 372 Total Hours for Period 2184 A2.2-1 Site: AEP Cook .Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 04/0 I /20 16

06/3 0/20 16 Elevation: Speed: SPD60M Direction: DiR601VI Lapse: DT60M Stability Class 13 Delta Temperature Moderately Unstable Wind Direction N NNE NE ENE E ESE SE SSE s SSW SW WSW w WNW NW NNW Total I -4 0 0 0 1 0 0 0 0 0 0 0 I 0 0 1 0 3 4-8 3 I 0 0 I 2 2 4 2 0 I I 2 4 4 0 27 Calm Hours not Included above for: Valid Hours for this Stability Class for: Total Hours for Period Wind Speed (mph) 8-13 13-19 19-25 12 I I 3 4 0 0 4 I 0 I 2 0 6 2 0 I 14 2 4 2 I 4 I 0 I 2 2 3 1 2 3 10 6 I 5 0 0 1 0 0 7 6 3 8 11 10 71 63 25 Total Period Total Period A2.2-2 > 25 I 0 0 0 0 0 () 0 0 0 0 I 0 0 0 5 7 Total 30 5 5 4 9 19 9 9 6 6 7 20 7 5 21 34 196 0 196 2184 ------~

Site: AEP Cook ,Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 04/01/2016 -06/30/20 I 6 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction I -4 4-8 8-13 13 -19 19-25 > 25 Total N I 6 I I 6 8 I ...... .).) NNE 0 2 2 0 0 0 4 NE 0 I 2 I 0 0 4 ENE 0 2 11 4 0 0 17 E 0 0 11 4 .0 0 15 ESE 0 3 8 6 I 0 18 SE I 2 9 2 3 0 17 SSE 0 3 6 4 2 0 [5 s 0 I 7 2 () 0 [0 SSW 0 0 0 3 0 0 ... _l SW 0 0 7 3 0 0 10 WSW 0 2 9 1 1 0 13 w 0 1 6 3 0 1 11 WNW 0 I 2 2 0 0 5 NW 0 2 9 5 2 0 18 NNW 0 5 IO 15 5 3 38 Total 2 31 I 10 61 22 5 231 Calm Hours not Included :ihove for: Total Period 0 Valid Hours for this Stability Class for: Total Period 231 Total Hours for Period 2184 A2.2-3 Site: AEI' Cook Joint Frequency Distribution I lours al Each Wind Speed and Direction Total Period Period of Record = 04/01/2016 -06/30/20 I 6 Elel'ation: Speed: SPD60lvl Direction: D1R60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction LJ 4 -8 8 -13 13 -19 19-25 > 25 Total N 2 9 35 12 2 0 60 NNE 0 I I 13 3 0 0 27 NE 0 6 I I 1 0 0 18 ENE I 6 9 4 0 0 20 E 2 7 12 4 I 0 26 ESE 0 I I 27 22 6 0 66 SE I 3 28 12 I () 45 SSE 0 4 18 13 2 0 37 s 0 3 22 16 4 0 45 SSW 2 I 20 12 1 1 37 SW 2 4 18 19 4 I 48 WSW I 8 26 7 2 0 44 w 0 16 14 11 0 42 WNW I 21 10 5 0 38 NW 2 14 19 12 7 1 55 NNW 0 16 32 6 0 0 54 Total 14 140 314 159 32 3 662 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 662 Total Hours for Period 2184 A2.2-4 I j Site: AEP Cook Joint F1*equency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2016 -06/30/20 I 6 Elevation: Speed: SPD60M Direction: DIR60M Lapse:* DT60M Stability Class F Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19-25 > 25 Total N 1 21 8 () 0 0 30 NNE 0 10 9 0 0 0 19 NE I 6 11 I 0 0 19 ENE l 4 4 0 0 0 9 E 0 4 6 0 0 0 10 ESE 0 4 19 9 0 0 32 SE 3 7 10 9 0 0 29 SSE 0 2 19 6 0 0 27 s 1 7 14 13 0 0 35 SSW 2 7 13 10 0 0 32 SW 0 6 12 4 l 0 23 WSW l 12 14 10 2 0 39 w 2 11 7 4 I 0 25 WNW l 10 2 .., 0 0 16 .J NW 0 5 2 0 0 0 7 NNW 2 10 5 0 0 0 17 Total 15 126 155 69 4 0 369 Calm Hours not Included above for: Totiil Period 0 Valid Hours for this Stability Class for: Total Period 369 Total Hours for Period 2184 A2.2-5

Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Pcl'iocl of Record = 04/01/2016 -06/30/2016 Elevation: Speed: SPD60M Dil'ection: D1R60M Lapse: DT60M Stability Class f Delta Temperature Moderately Stable Wind Speed (mph) \Vinci Direction LJ 4-8 8-13 13 -19 19-2S > 25 Total N 0 2 I 0 0 0 3 NNE 0 2 4 0 0 0 6 NE 2 6 13 0 0 0 21 ENE I 5 9 I 0 0 16 E 2 0 5 2 0 0 9 ESE 1 2 10 I 0 0 14 SE 2 0 12 3 0 0 17 SSE 0 I 6 3 0 0 10 s 0 I 7 7 0 0 15 SSW 2 1 4 7 0 0 14 SW 0 4 I 0 0 6 WSW 0 I I 0 0 0 2 w I 4 3 () 0 0 8 WNW 0 6 0 0 0 0 6 NW 1 I 0 0 0 3 NNW 0 I 0 0 0 2 Total 12 34 81 25 0 0 152 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 152 Total Hours for Period 2184 A2.2-6 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 04/01/2016 -06/3 0/20 16 Ji:lcvation: Speed: SPD60M Oircctio11: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction I -4 4-8 8-13 13 -19 19 -25 > 25 Total N 5 2 0 0 0 8 NNE 2 2 6 () 0 0 10 NE 0 2 7 0 0 0 9 ENE 0 6 17 3 0 0 26 E 3 2 13 5 0 0 23 ESE 0 4 12 2 0 0 18 SE 0 4 13 2 0 0 19 SSE 1 I 5 12 0 () 19 s 1 2 5 5 0 0 13 SSW 0 2 6 2 0 0 10 SW 0 5 JO 0 0 0 15 WSW I 5 I 0 0 0 7 w I 8 0 0 0 JO WNW 1 4 2 0 0 0 7 NW 0 2 () 0 0 0 2 NNW 0 2 I 0 0 0 3 Total 11 56 IOI 31 0 0 199 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 199 Total Hours for Period 2184 A2.2-7 Sile: AEP Cook Summary of All Sti1bility Classes Pcl'iod of Record = Joint Frequency Distribution I lours at Each \.Vind Speed and Direction Total Period 04/01120 16 -06/30/2016 Elevation: Speed: SPD60M Direction: D1R60lvl Delta Temperature Lapse: DT60M Wind Speed (mph} Wind Direction l -4 4-8 8 -13 13-19 19 -25 > 25 N s 49 92 53 15 3 NNE 2 28 38 4 0 () NE 3 21 53 6 0 0 ENE 4 25 51 16 0 0 E 7 19 58 32 3 0 ESE 3 29 92 62 10 0 SE 7 24 82 38 s 0 SSE I 16 69 47 4 0 s 2 18 62 48 7 I SSW 6 11 46 39 4 I SW 2 17 55 ...... 11 I .J.J WSW 4 31 72 36 6 I w 4 46 47 23 2 2 WNW 3 49 22 14 I 1 NW 4 34 53 34 19 I NNW 2 43 94 52 22 16 Total 59 460 986 537 112 27 Calm Hours not Included above for: Total Period Variable Direction Hours for: Total Period Invalid Hours for: Total Period Valid Hours for this Stability Class for: Total Period Total Hours for Period A2.2-8 Total 217 72 83 96 119 196 159 137 138 107 119 150 124 90 145 229 2181 0 0 3 2181 2184 Site: t\EP Cook Period of Record = Joint Frequency Distribution I-lours at Each Wind Speed and Direction Total Period 07/0I/2016 " 09/30/2016 Elevation: Speed: SPD60M Direction: D1R60fvl Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) \Vind Direction t -4 4-8 8 -13 13 -19 19 -25 > 25 N 0 0 7 18 0 0 NNE 0 0 2 0 0 0 NE 0 I 3 3 0 0 ENE 0 3 4 0 0 ., E 0 5 2 0 0 li:SE 0 8 0 0 SE 0 10 0 0 0 SSE 0 0 4 0 0 *' s 0 [ 4 3 2 0 SSW 0 0 0 0 0 0 SW 0 0 2 2 0 0 WSW 0 0 5 5 5 0 w 0 0 5 3 l 0 WNW 0 4 2 4 I 0 NW 0 6 l I 0 0 NNW 0 5 13 10 0 0 Total 0 23 73 60 9 0 Calm Hours not Included above for : Total Pel'iocl Valid Hours for this Stability Class for: Total Period Total Hours for Period A2.3-1 Total 25 2 7 10 8 10 11 7 10 0 4 15 9 11 8 28 165 3 165 2208 Site: AEP Cook .Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2016 -09/30/2016 Elevation: Speed: Sl'D60M Direction: DIR60M Lapse: DT60M Stability Class B Della Tcmpcratmc Moderately Unstable Wind Speed (mph) Wind Direction l -4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 2 I 3 0 0 6 NNE I 0 2 0 0 0 3 NE 0 0 0 0 0 0 0 ENE 0 0 0 2 0 0 2 E 0 0 0 0 0 0 0 ESE 0 I 3 I 0 0 5 SE 0 0 2 0 0 0 2 SSE 0 I 2 1 0 0 4 s 0 0 2 9 I 0 12 SSW () 0 2 2 0 0 4 SW 0 0 6 4 0 0 10 WSW 0 I 9 I 0 12 w 0 0 2 3 1 7 WNW 0 I 0 I 0 0 2 NW 0 0 2 0 0 0 2 NNW 0 6 6 0 0 13 Total 7 39 33 3 84 Calm Hours not Included above for: Total Period 3 Valid Hours for this Stability Class for: Total Period 84 Total Hours for Period 2208 A2.3-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 07/01/2016 -09/30/20 l 6 li:levation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19 -25 > 25 Tohll N 0 I 10 5 0 0 16 NNE 0 0 0 0 0 0 0 NE I 2 3 I 0 0 7 ENE 0 2 0 0 0 0 2 E 0 I 3 0 0 0 4 ESE 0 2 3 0 0 0 5 SE 0 0 2 3 0 0 5 SSE 0 4 4 0 0 0 8 s 0 3 I 2 0 I 7 SSW 0 0 4 2 0 0 6 SW 0 I 9 3 0 0 13 WSW 0 0 3 3 l 0 7 w 0 0 2 3 l 0 6 WNW 0 4 2 2 0 0 8 NW 0 1 0 0 0 0 I NNW 0 2 8 3 0 0 13 Total 23 54 27 2 108 Calm Hours not Included above for : Total Period 3 Valid Hours for this Stability Class for: Total Period 108 Total Hou1*s for Period 2208 A2.3-3 L ___ _

Site: AEP Cook Joint Frequency Distribution Hours at Each \.Vind Speed and Direction Total Period Period of Record = 07/01/2016 -09/30/2016 Elevation: Speed: SPD60M Direction: DlR60tvl Lapse: DT60M Stability Class D Ddlu Temperature Neutral Wind Speed (mph) Wind Direction 1 -4 4-8 8 -13 13 -19 19-25 > 25 Tot:il N 2 11 36 7 0 0 56 NNE l 4 9 0 0 0 14 NE 5 26 14 0 0 46 ENE 2 24 2 0 0 29 E 0 4 22 1 0 0 27 ESE 0 6 10 0 0 0 16 SE 0 8 20 I 0 0 29 SSE I 9 29 6 0 () 45 s 0 5 44 10 2 0 61 SSW 0 6 26 17 0 50 SW 2 9 39 33 0 0 83 WSW 1 6 32 20 5 1 65 w 0 8 14 9 11 0 42 WNW 20 15 23 4 0 63 NW II 14 4 0 0 30 NNW 16 22 2 0 0 41 Total 12 130 382 149 23 697 Cahn Hours not Included above for : Total Period 3 Valid Hours for this Stability Class for: Total Period 697 Total Hour*s for Period 2208 A2.3-4 Site: AEP Cook Joint .Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2016 -09/30/2016 Elevation: Speed: Sl'D60i'vl Direction: DlR60iV[ Lapse: DT60M Stability Clnss E Delta Temperature Slightly Stable Wind Speed (mph) Wind Dircctiun 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 5 23 9 1 0 0 38 NNE 5 17 12 2 0 0 36 NE 4 14 28 6 0 0 52 ENE 6 8 19 0 () 34 E 5 7 20 2 0 0 34 ESE 4 9 14 1 0 0 28 SE 4 7 (5 3 0 0 29 SSE 3 13 1 [ 5 0 0 32 s 2 9 49 7 () 0 67 SSW 0 8 38 4 0 1 51 SW 3 14 9 4 0 0 30 WSW 1 22 19 1 0 1 44 w 3 9 4 3 0 0 19 WNW 6 20 3 [() 3 0 42 NW 3 19 3 3 2 0 30 NNW 3 19 7 0 0 30 Total 57 218 260 54 5 2 596 Calm Hours not Included above for: Total Period 3 Valid Hours for this Stability Class for: Total Period 596 Total Hours for Period 2208 A2.3-5 Site: AEP Cook Joint Frequency Distribution Hours at Each \.Vind Speed and Direction Total Period Period of Record = 07/01/2016 -09/30/2016 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stal.Jility Class r, Della Temperature Moderately Stable Wind Speed (mph) 'tVind Direction 1 -4 4-8 8-13 13 -19 19-25 > 25 Total N 0 2 2 0 0 0 4 NNE I 6 5 0 0 0 12 NE 3 4 8 0 0 0 15 ENE I 3 17 0 0 0 21 E 0 0 19 I 0 0 20 ESE 0 4 13 2 0 0 19 SE 2 2 22 I 0 0 27 SSE 2 5 17 7 0 0 31 s 3 9 18 12 1 0 43 SSW 2 2 I I 2 0 0 17 SW 1 7 12 0 0 0 20 WSW 2 3 4 0 0 0 9 w 1 I 0 0 0 0 2 WNW 0 I 2 0 0 0 3 NW l 0 0 0 0 0 I NNW I 0 3 0 0 0 4 Total 20 49 153 25 0 248 Cairn Hours not lucludcd above for: Totnl Period 3 Valid Hours fo1* this Stability Class for: Total Period 248 Total Hours for Period 2208 A2.3-6 Site: AEI' Cook ,Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/0l/2016 -09/30/2016 Elevation: Speed: SPD601vl Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13-19 19 -25 > 25 Tot:il N .., IO .., () 0 () 16 .1 .1 NNE 0 4 6 0 () 0 10 NE 5 5 3 I 0 0 14 ENE 2 13 12 I 0 0 28 E 2 9 15 2 0 0 28 ESE 3 10 18 l 0 0 32 SE 0 8 25 2 0 0 35 SSE 0 [2 16 11 0 0 39 s I 7 16 7 0 0 31 SSW 2 4 8 I 0 0 [5 SW I 8 6 0 () 0 15 WSW 3 7 2 l 0 0 13 w ,., 3 0 0 0 0 6 .) WNW I 4 0 0 0 0 5 NW 0 J 2 0 0 0 5 NNW 0 7 I 0 0 0 8 Tot:il 26 114 133 27 0 0 300 Cairn Hours not lncludecl above for : Total Period 3 Valid Hours for this Stability Class for: Total Period 300 Total Hours for Period 2208 A2.3-7 L_

Site: t\EP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Sumnrnry of All Stability Classes Total Period Period of Record = 07/01/2016 -09/30/2016 Elevation: Speed: SPD60l'vl Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19 -25 > 25 Totnl N IO 49 68 34 0 0 161 NNE 8 31 36 2 0 0 77 NE 14 31 71 25 0 0 141 ENE 10 31 75 10 0 0 126 E 7 22 84 8 () 0 121 ESE 7 33 69 6 0 0 115 SE 6 26 96 10 0 0 138 SSE 6 44 82 34 0 0 166 s 6 34 134 50 6 231 SSW 4 20 89 28 I I 143 SW 7 39 83 46 0 0 175 WSW 7 39 74 31 12 2 165 w 7 21 27 21 14 l 91 WNW 8 54 24 40 8 0 134 NW 5 40 22 8 2 0 77 NNW 5 50 60 22 0 0 137 Total 117 564 1094 375 43 5 2198 Cahn Hours not Included nbove for: Total Pe,*iocl 3 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Pedocl 7 Valid Hours for this Stability Class for: Total Period 2198 Total Hours for Period 2208 A2.3-8 Site: AEP Cook .Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record "" I 0/01/2016 -12/3 1 /20 16 Elevation: Speed: SPIOM Direction: DIR I OM Lapse: DT60M Stability Class A Dcltll Temperature Extremely Unstable Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19 -25 > 25 Total N 7 29 2 0 0 0 38 NNE I 9 2 0 0 0 12 NE 2 2 0 0 0 0 4 ENE 1 0 0 0 0 0 1 E 0 I 0 0 0 0 ESE 6 0 0 0 0 7 SE 2 7 I 0 0 0 10 SSE 0 20 4 0 0 0 24 s I 19 7 0 0 0 27 SSW 0 5 6 0 0 0 11 SW 0 8 12 I 0 0 21 WSW 1 13 9 0 0 0 23 w 2 11 6 0 0 0 19 WNW 0 13 I 0 0 0 14 NW 3 7 0 0 0 0 10 NNW 3 12 0 0 0 0 15 Total 24 162 50 0 0 237 Cahn Hours not Included above for: Total Period 4 Valid Hours for this Stability Class for: Total Period 237 Total Hours for Period 2208 A2.4-1 L Site: AEP Cook ,Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = I 0/01/2016 -12/31/2016 Elevation: Speed: SPlOM Uirection: D1R10M Lapse: DT60iV! Stability Class B Delta Ternpernlure Moderately Unstable Wind S1Jccd (mph) Wind Direction I -4 4-8 8 -13 13 -19 19 -25 > 25 Total N 2 7 3 0 0 0 12 NNE I 3 0 0 0 0 4 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 3 0 0 0 0 0 3 ESE 3 l 0 0 0 0 4 SE 0 4 I 0 0 0 5 SSE l 9 I 0 0 0 11 s 2 12 5 0 0 0 19 SSW 3 6 6 I 0 0 16 SW 0 11 5 1 0 0 17 WSW I 6 5 0 0 0 12 w 6 17 0 0 0 24 WNW 11 4 0 () 0 16 NW 3 12 3 0 0 0 18 NNW 7 0 0 0 0 8 Total 22 95 50 2 0 0 169 Calm Hours not Included above for: Total Period 4 Valicl Hours for this Stability Class for: Total Period 169 Total Hours for Period 2208 A2.4-2 Site: AEP Cook Joint Frequency Distribution I lours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2016 -12/31/2016 Elevation: Speed: SP I Oivl Direction: DIRIOM Lapse: DT6otvl Stability Class C Della Temperature Slightly Unstable Wind Speed (mph) Wind Direction LJ 4-8 8 -13 13 -19 19 -25 > 25 Total N l 9 3 0 0 0 13 NNE 3 2 0 0 0 0 5 NE 0 0 0 0 0 I ENE I 0 0 0 0 2 E 2 0 0 0 0 0 2 ESE 2 8 2 0 0 0 12 SE 2 15 3 0 0 0 20 SSE 3 17 4 0 0 0 24 s ... 13 7 0 0 0 23 J SSW 12 10 0 0 0 23 SW 3 4 0 0 0 8 WSW 7 20 2 0 0 30 w 3 15 30 2 0 0 50 WNW 3 21 12 I 0 0 37 NW 3 15 14 3 0 0 35 NNW 3 7 5 0 0 0 15 Total 33 145 114 8 0 0 300 Calm Hours not Included nbove for: Total Period 4 Valid Hours for this Stability Class for: Total Period 300 Total Hours for Period 2208 A2.4-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = I 0/01/2016 -12/3 I /20 16 1!:lev:1tion: Speed: SPIOM Direction: DIR I OM Lnpse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction J -4 4-8 8-13 13-19 19-25 > 25 Total N 13 59 11 0 0 0 83 NNE 25 30 1 0 0 0 56 NE 12 5 0 0 () 0 17 ENE 5 2 0 0 0 0 7 E 17 3 0 0 0 0 20 ESE 22 19 2 0 0 0 43 SE 14 39 7 0 () 0 60 SSE 18 37 20 0 0 76 s 13 48 33 0 0 0 94 SSW 5 39 50 16 0 0 110 SW 0 26 39 0 () 0 65 WSW 6 27 19 2 0 0 54 w 8 25 18 I 0 0 52 WNW 6 50 12 1 0 0 69 NW 10 41 21 0 0 0 72 NNW 1 I 27 10 0 0 0 48 Total 185 477 243 21 0 0 926 Calm Hours not Included :1bove for: Total Period 4 Valid Hours for this Stability Class for: Total Period 926 Total Hours for Period 2208 A2.4-4 Site: Ar.P Cook .Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record== I 0/01/2016 -12/31/2016 Elevation: Speed: SPJOM Direction: DIRIOl'vl Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 9 2 0 0 0 () 11 NNE JO 1 0 0 0 0 11 NE 20 1 0 0 0 0 21 ENE 11 () 0 0 0 0 11 I?. 8 0 0 0 0 0 8 ESE 16 I 0 0 0 0 17 SE 21 8 0 () 0 0 29 SSE 37 15 4 0 0 0 56 s 21 47 6 () 0 0 74 SSW 9 19 3 0 0 0 31 SW 6 12 1 0 0 0 19 WSW 2 0 0 0 0 3 w 1 3 0 0 0 0 4 WNW 0 0 0 0 0 0 0 NW 2 0 0 0 0 0 2 NNW 3 4 0 0 0 0 7 Total 175 115 14 0 0 0 304 Cairn Hours not Included above for: Total Period 4 Valid Hours for this Stability Class for: Total Period 304 Total Hours for Period 2208 A2.4-5 Site: A El' Cook Joint Frequency Distribution Hours at Each \,\/ind Speed and Direction Total Period Period of Record= 10/01/2016 -12/31/2016 EleYation: Speed: SPIOM Direction: DIRIOM Lapse: DT60Ivl Stability Class f Delta Tcmpcralurc Moderately Stable \\'ind Speed (mph) Wind Direction 1 -4 4-8 8 -13 13 -19 19 -25 :> 25 Total N 0 0 0 () 0 0 0 NNE 2 0 0 () 0 0 2 NE 7 0 0 0 0 0 7 ENE 8 0 0 () () 0 8 E 20 0 0 0 0 0 20 ESE 23 0 0 0 0 0 23 SE 9 0 0 0 0 0 9 SSE 19 0 0 0 0 0 19 s 29 7 0 0 0 0 36 SSW 5 I 0 0 0 0 6 SW 2 0 0 0 0 0 2 WSW I 1 0 0 0 0 2 w 0 0 0 0 0 0 0 WNW 1 0 0 0 0 0 I NW 1 0 0 0 0 0 I NNW 0 0 0 0 0 0 0 Total 127 9 0 0 0 0 136 Calm Hours not Included above for : Total Period 4 Valid Hours for this Stability Class for: Total Period 136 Total Hours for Period 2208 A2.4-6

Site: AEP Cook ,Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2016 . 12/31/2016 Ele\*ation: Speed: SPIOM Direction: DIR I OM Lapse: DT601vl Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13

19 19

25 > 25 Total N I 0 0 0 0 0 NNE 4 0 0 () 0 0 4 NE 2 0 0 0 0 0 2 ENE 6 0 0 0 0 0 6 E 6 0 0 0 0 0 6 ESE 15 0 0 0 0 0 15 SE 23 0 0 0 0 0 23 SSE 28 0 0 0 0 0 28 s 27 I 0 0 0 0 28 SSW 8 3 0 0 0 0 I I SW 4 0 0 0 0 0 4 WSW 3 0 0 0 0 0 ... .) w 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW J 0 0 0 0 0 1 Total 128 4 0 0 0 0 132 Calm Hours not Included above for: Total Period 4 Valid Hours for this Stability Class for: Total Period 132 Total Hours for Period 2208 A2.4-7 Site: AEf' Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record"" 10/01/2016 -12/3 I /20 I 6 Elevation: Speed: SPI Ol'vl Direction: DJRIOM Larse: DT60M Della Temperature Wind Speed (mph) \*Vind Direction J -4 4-8 8 -13 13-19 19 -25 > 25 Total N 33 106 19 0 0 0 158 NNE 46 45 -, 0 () 0 94 .) NE 44 8 0 0 0 0 52 ENE 32 3 0 0 0 0 35 E 56 4 0 0 0 0 60 ESE 82 35 4 0 0 0 121 SE 71 73 12 0 0 0 156 SSE 106 98 -,-, I 0 0 238 .).) s 96 147 58 0 0 0 301 SSW 31 85 75 17 0 0 208 SW 13 60 61 2 0 0 136 WSW 14 56 53 4 0 0 127 w 15 60 71 3 0 0 149 WNW 11 95 29 2 0 0 137 NW 22 75 38 3 0 0 138 NNW 22 57 15 0 0 0 94 Total 694 1007 471 32 0 0 2204 Calm Hours not Included above for: Total Period 4 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 0 Valid Hours for this Stability Class for: Total Period 2204 Total Hours for Period 2208 A2.4-8 OFF-SITE DOSE CALCULATION MANUAL CHANGES The Off-Site Dose Calculation Manual, PMP-601O-OSD-001, was not revised during this 2016 reporting period. A3.0-1 ENCLOSURE 3 to AEP-NRC-2018-35 DONALD C. COOK NUCLEAR PLANT UNITS 1 AND 2 2015 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT, Revision 1 I J TABLE OF CONTENTS Page Table of Contents 1 I. II. III. IV. V. VI. VII. VIII. IX. Introduction 1 Radioactive Releases and Radiological Impact on Man 1 Liquid Releases 2 Gaseous Releases 2 Solid Waste Disposition 2 Meteorological 3 Offsite Dose Calculation Manual (ODCM) Changes 3 Total Dose 3 Radiation Monitors Inoperable Greater Than 30 Days 4 Noteworthy Conditions Identified in 2015 4 Conclusion 5 Errata 5 LIST OF APPENDICES Title Appendix Al.l 2015 Effluent and Waste Disposal Annual Report -Supplemental Information Al.2 Summaiy of Maximum Individual Doses: First Quarter, Second Quarter, Third Quarter, and Fourth Quarter 2015 Al.3 2015 Groundwater Protection Initiative (GPI) Sample Data A2.l Hours at Each Wind Speed and Direction: First Quarter, 2015 A2.2 Hours at Each Wind Speed and Direction: Second Quarter, 2015 A2.3 Hours at Each Wind Speed and Direction: Third Quarter, 2015 A2.4 Hours at Each Wind Speed and Direction: Fourth Quarter, 2015 A3.0 Offsite Dose Calculation Manual (ODCM) Changes 1 I. INTRODUCTION This report discusses the radioactive discharges from Unit 1 and Unit 2 of the Donald C. Cook Nuclear Plant (CNP) during 2015. This is in accordance with the requirements of CNP Technical Specification (TS) 5.6.3. The table below summarizes the pertinent statistics concerning the Plant's operation during the period from January 1, 2015, to December 31, 2015. The data in this table and the descriptive information on plant operation are based upon the respective unit's Monthly Operating Reports, Performance Indicators, and Control Room Logs for 2015. Parameter Unit 1 Unit2 Gross Electrical Energy Generation 8,079,912 8,971,844 (Megawatt Hour (MWH)) Unit Service Factor 83.9 90.7 (Percent (%)) Unit Capacity Factor 86.7 92.2 (Maximum Dependable Capacity (MDC)) Net(%) Unit 1 entered the reporting period in Mode 1 at Nominal Full Power (NFP). Small power adjustments were made to facilitate main turbine valve testing throughout the year. On June 1, 2015, the unit performed a normal downpower and was manually tripped to enter a forced maintenance outage. The unit attained criticality on July 29, 2015, and attained NFP on July 30, 2015. The unit exited the reporting period at NFP. Unit 2 entered the reporting period in Mode 1 at NFP. Small power adjustments were made to facilitate main turbine valve testing throughout the year. The unit performed a normal downpower and was manually tripped on March 25, 2015, entering refueling outage U2C22. The unit attained criticality on April 22, 2015, however the reactor* was manually tripped on April 23, 2015 to support additional maintenance. The unit attained criticality on April 27, 2015, and attained NFP on May 1, 2015. The unit commenced a normal planned downpower to 95% on November 6, 2015, to support online maintenance work. The unit returned to NFP on November 19, 2015. The unit exited the reporting period at NFP. II. RADIOACTIVE RELEASES AND RADIOLOGICAL IMP ACT ON MAN Since a number of release points are common to both units, the release data from both units are combined to form this two-unit, Annual Radioactive Effluent Release Report. Appendix Al.1 through A2.4 of this report present the information in accordance with Section 5.6.3 of Appendix A to the Facility Operating Licenses, as specified in the Technical Specifications, Regulatory Guide 1.21, and 10 CFR Part 50, Appendix I. The "MIDAS System" is a computer code that calculates doses due to radionuclides that were released from the CNP. 1 All liquid and gaseous releases were well within Offsite Dose Calculation Manual (ODCM) limits and federal limits. There were no abnormal liquid releases and no abnormal gaseous releases in 2015. The Independent Spent Fuel Storage Installation (ISFSI) impacts are included with Unit 1 and Unit 2 statistics. The ISFSI cask system does not create any radioactive materials or have any radioactive waste treatment systems. Therefore, specific operating procedures for the control of radioactive effluents are not required. Specification 3.1.1, Multi-Purpose Canister (MPC), provides assurance that there are not radioactive effluents from the ISFSI. Liquid Releases During 2015 there were 69 liquid batch releases performed. The number of liquid batch releases for the four quarters in 2015 was 20, 27, 15, and 7, respectively. Estimated doses (in mrem) to maximally exposed individuals via the liquid release pathways are given in Appendix Al.2 of this report. Gaseous Releases During the first quarter of 2015 there were four batch releases from Gas Decay Tanks (GDT), one containment purge, one system tank venting, and 80 Containment Pressure Reliefs (CPR). During the second quarter there was one containment purge and 84 CPR. During the third quarter there were four batch releases from GDTs and 95 CPR. During the fourth quarter there were two batch releases from GDTs and 127 CPR. The CPR continue to be listed as batch releases as described in Nuclear Regulatory Commission Inspections 50-315/89017 (DRSS); 50-316/89016 (DRSS) for CNP, dated June 13, 1989. Doses continue to be calculated utilizing continuous criteria as allowed by NUREG-0133. There were a total of 10 GDT releases, two containment purge, one system tank vent, and 386 CPR gaseous batch releases made during 2015. In calculating the dose consequences for continuous and batch gaseous releases during 2015, the meteorological data measured at the time of the release were used. The estimated doses (in mrem) to maximally exposed individuals via the gaseous release pathways are given in Appendix Al.2 of this report. For individuals that are within the site boundary, the occupancy time is sufficiently low to compensate for any increase in the atmospheric diffusion factor above that for the site boundary. Solid Waste Disposition There were 37 shipments of radioactive waste made during 2015. These included shipments made from the site to various radioactive waste processors for ultimate disposal. 2 III. METEOROLOGICAL IV. Appendices A2.l, A2.2, A2.3, and A2.4 of this report contain the cumulative joint frequency distribution tables of wind speed and wind direction, corresponding to the various atmospheric stability classes for the first, second, third, and fourth quarters of 2015. Hourly meteorological data is available for review and/or inspection upon request. OFFSITE DOSE CALCULATION MANUAL (ODCM) CHANGES The ODCM, PMP-6010-0SD-001, was revised during the report period. The new revision has been attached to this report. V. TOTAL DOSE Section 3.2.5 of the ODCM requires that the dose or dose commitment to a real individual from all uranium fuel cycle sources in Berrien County be limited to no more than 25 mrem to the total body or any organ (except the thyroid, which is limited to no more than 75 mrem) over a period of 12 consecutive months to show conformance with the requirements of 40 CFR Part 190. The maximum cumulative dose to an individual from liquid and gaseous effluents during 2015 was well within the ODCM limits. Measurements using thermoluminescent dosimeters (TLD) at 12 onsite stations indicate that the dose due to direct radiation is consistent with preoperational and current control (background) levels. This is fully evaluated in CNP's 2015 Annual Radiological Environmental Operating Report. Additional TLD dosimetry installed by Radiation Protection department programs monitor dose received by individuals on site as visitors. The annual dose to the maximum individual will be estimated by first, summing the quarterly total body air dose, the quarterly skin air dose, the quarterly critical organ dose from iodines and particulates (I&P), the quarterly total body dose from liquid effluents, the quarterly critical organ dose from liquid effluents, and the Radiological Environmental Monitoring Program onsite direct radiation TLD data. These quarterly values are summed with the annual Carbon-14 dose and compared to the annual total body limit for conservative reasons. The table that follows here represents the above written description: Dose (mrem) 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr I &P 1.62E-02 1.95E-02 4.61E-02 1.57E-02 Total Body Air 2.50E-04 2.20E-04 5.00E-04 3.10E-04 Skin 4.10E-04 3.50E-04 2.20E-03 5.10E-04 Liquid TB 1.69E-02 1.19E-02 1.27E-02 2.47E-03 Liquid OrQan 1.69E-02 1.20E-02 1.27E-02 2.48E-03 C14(Annual) 2.23E+OO Direct Radiation 0 0 0 0 Total 5.07E-02 4.40E-02 7.42E-02 2.25E+OO Grand Total Dose (Total Body or any other OrQan) mrem 2.42E+OO Annual Dose Limit (mrem) 25 Percent of limit 9.68E+OO 3 I _J The following data reflects a comparison with 2009 annual dose data (th<y last year without calculating C-14 dose), 2015 annual dose data, and 2015 annual dose data with C-14 added. This indicates that 2015 was a 'typical' single unit outage year with respect to radioactive effluents and allows for easier comparison. The table is presented as follows: Annual Dose (mrem) % of limit 2009 2.60E-01 1.04 2015 1.90E-01 0.76 2015 with C-14 2.42 9.68 VI. RADIATION MONITORS INOPERABLE GREATER THAN 30 DAYS There were no release pathways unmonitored for greater than 30 days. VIL NOTEWORTHY CONDITIONS IDENTIFIED IN 2015 There were no new noteworthy conditions identified in 2015. Carbon-14 Supplemental Information for the 2015 Annual Radioactive Effluent Release Report. C-14 has a 5730 year half-life and is a naturally occurring radionuclide produced by cosmic ray interactions in the atmosphere. C-14 is a relatively low energy beta emitter. Nuclear weapons testing in the 1950s and 1960s significantly increased the amount of C-14 in the atmosphere. C-14 is also produced in commercial nuclear reactors, but the amounts produced are much less than those produced naturally, from weapons testing, or coal burning power plants. The inventory of C-14 in Earth's biosphere is about 300 million Curies, of which most is in the oceans. Since the U.S. Nuclear Regulatory Commission (NRC) published Regulatory Guide (RG) 1.21, Revision 1, in 1974, the analytical methods for determining C-14 have improved. Coincidentally, the radioactive effluents from commercial nuclear power plants over the same period have decreased to the point that C-14 is likely to be a principal radionuclide in gaseous effluents. Based on these reasons and a desire to adjust policy to align with international standards, the nuclear industry was required to report, starting in 2010, the quantity and dose impact of C-14 here in the United States. The dose will be reported both with and without C-14 so a comparison to 2009 can be made, keeping in mind the differing standards. The quantity of C-14 released to the environment can be estimated by use of a C-14 source term scaling factor based on power generation (Ref. RG 1.21, Revision 2). A recent study recommends a source term scaling factor of approximately 9.0 to 9.8 Curies/GWe-yr for a Westinghouse Pressurized Water Reactor (Ref. EPRI 1021106, "Estimation of Carbon-14 in Nuclear Plant Gaseous Effluents", dated December 23, 2010). A scaling factor of 9.4 Curies/GWe-yr was assumed for this report. Using this source term scaling factor and actual electrical generation (in MWH) produced during 2015 results in a site total of 18.3 Curies produced. 4 C-14 releases from Pressurized Water Reactors (PWR) occur primarily as a mix of organic carbon (methane) and inorganic carbon (carbon dioxide). As a general rule, C-14 in the primary coolant is essentially all organic with a large fraction as gas. Any time the primary coolant is exposed to an oxidizing environment ( during shutdown or refueling), a slow transformation from an organic to an inorganic species occurs. Various studies documenting measured C-14 releases from PWRs suggest an average 80% organic :fraction with the remainder being carbon dioxide. 1bis equates to 2.56 Curies released as carbon dioxide which is available for the food pathway through photosynthesis to vegetation. Dose is calculated utilizing the methodology prescribed in RG 1.109, Appendix C, with the vegetation dose being the most predominant. A 'p' factor of0.33 is determined utilizing the time of batch gaseous releases performed during 2015, the time available for photosynthesis in plants, and the assumption that 70% of the C-14 released is from gaseous batch releases. A further reduction to the vegetation and leafy vegetable dose is warranted due to the limited growing season in Michigan, which was conservatively limited to nine months. The final results indicated a calculated organ dose from C-14 to a child at the site boundary of 1.76 mrem to the bone and a whole body dose of0.468 mrem, for a combined total C-14 dose of2.23 mrem. 1bis is less than the dose limit of 15 mrem/unit to any organ prescribed in 10 CPR 50, Appendix I, and the 40 CPR Part 190 limit of 25 mrem for total body and for any organ ( '.::;.75 mrem for thyroid). vm. CONCLUSION Based on the information presented in this report, it is concluded that CNP Units 1 and 2 performed their intended design function with no demonstrable adverse effect on the health and safety of the general public. IX. ERRATA Corrections were made on the 2014 Annual Radioactive Release Report, page Al.1-8, correcting an exponent typographic error. There were no changes in dose to the public. 1bis was documented in Action Request 2015-6149. The corrected page is attached to this report on the following page. Note: 1bis entire document is Revision 1 submitted as "Errata" attached to the 2017 Annual Radioactive Effluent Release Report per Corrective Action 2017-4835. 1bis new revision completely replaces the previously submitted report. 1bis errata was necessitated due to problems identified with equipment utilized for counting tritium samples dating back to 2013. The alterations made no impact to the overall public dose calculated of 2.42 millirems (9.68% of the 40 CPR190 allowable dose limits) but are included for accuracy. There were no adverse impacts to public health or safety. 5 2014 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES BATCH MODE I Nuclides Released I Unit I 1st Quarter I 2nd Quarter I 3rd Quarter I* 4_th Quarter I 11. FISSION GASES I H3 AR41 KR85 XE131M XE133M XE133 XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES I131 I133 I Ci I Ci !Total for Period I Ci 13. PARTICULATES I

BRBO I Ci 2.37E-02 3.SBE-01 3.lBE-01 5.87E-02 7.58E-01 2.95E-02 3.60E-01 7.53E-02 4.65E-01 5.45E-02 4.53E-Ol 9.81E-Ol 3.20E-02 1.SSE-01 2.45E-01 --------. I --------1. ;t?E-01 8. llE-07 l.61E+OO

I 1. 46E-03 2.56E-05 4.33E-01 --------1* --------------------------------------'---------------------*------I-------------------I

BR82 I Ci !Total for Period I Ci --------------------------------------------------------.---------------------* DENOTES SUPPLEMENTAL ISOTOPES Al.1-8 I J 2015 Effluent and Waste Disposal Annual Report SUPPLEMENTAL INFORMATION Facility: Donald C. Cook Nuclear Plant Licensee: Indiana Michigan Power Company 1 REGULATORY LIMITS 1.1 Noble Gases The air dose in unrestricted areas due to noble gases released in gaseous effluents shall be limited to the following: 1.1.1 During any calendar quarter, to~ 5 mrad/unit for gamma radiation and$ 10 mrad/unit for beta radiation. 1.1.2 During any calendar year, to~ 10 mrad/unit for gamma radiation and~ 20 mrad/unit for beta radiation. 1. 2 Iodines -Particulates The dose to a member of the public from radioiodines, radioactive materials in particulate form, and radionuclides other than noble_ gases with half-lives gr~ater than eight days in gaseous effluents released to unrestricted areas shall be limited to the following: 1.2.1 During any calendar quarter to~ 7.5 mrem/unit to any organ. 1.2.2 During any calendar year to~ 15 mrem/unit to any organ. 1. 3 Liquid Effluents The dose or dose commitment to an individual from radioactive material in liquid effluents released to unrestricted areas shall be limited: 1.3.1 During any calendar quarter to~ 1.5 mrem/unit to the total body and to~ 5 mrem/unit to any organ. 1.3.2 During any calendar year to~ 3 mrem/unit to the total body and to~ 10 mrem/unit to any organ. Al.1-1 2015 Effluent and Waste Disposal Annual Report 1.4 Total Dose The dose or dose commitment to a real individual from all uranium fuel cycle sources is limited to s 25 mrem to the total body or any organ (except the thyroid, which is limited to s 75 rnrem) over a period of 12 consecutive months. 2 MAXIMUM PERMISSIBLE CONCENTRATIONS 2.1 Gaseous Effluents The dose rate due to radioactive materials released in gaseous effluents from the site shall be limited to the following: 2.1.1 For noble gases: s 500 mrem/yr to the total body and s 3000 mrem/yr to the skin. 2.1~2 For all radioiodines and for all radioactive materials in particulate form and radionuclides (other than noble gases) with half-lives greater than eight days: s 1500 mrem/yr to any organ. The above limits are provided to insure that radioactive material discharged in gaseous effluents will not result in the exposure of an individual in an unrestricted area to annual average concentrations exceeding the limits in 10 CFR Part 20, Appendix B, Table 2, Column 1. 2.2 Liquid Effluents The concentration of radioactive material ~eleased at any time from the site to unrestricted areas shall be limited to 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 2 x 10-4 µCi/ml total activity. Al.1-2 2015 Effluent and Waste Disposal Annual Report 3 AVERAGE ENERGY The average energy (E) of the radionuclide mixture in releases of fission and activation gases as defined in Regulatory Guide 1.21, Appendix B, Section A.3 is not applicable because the limits used for gaseous releases are based on calculated dose to members of the public. Release rates are calculated using an isotopic mix from actual samples rather than average energy. 4 MEASUREMENTS and APPROXIMATIONS of TOTAL RADIOACTIVITY 4. 1 Fission and Activation Gases Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. 4 .2 Iodines Sampled on iodine adsorbing media, and analyzed on an 8192 channel analyzer and HpGe detector. 4. 3 Particulates Sampled on a glass filter and analyzed on an 8192 channel analyzer and HpGe detector. Sr-89 and Sr-90 analyses are performed by offsite vendor. 4. 4 Liquid Effluents Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. Fe-55, Sr-89 and Sr-90 analyses are performed by an offsite vendor. Ni-63 is also currently being analyzed by the offsite vendor in response to evaluation of the 10 CFR 61 sample results. Al.1-3 2015 Effluent and Waste Disposal Annual Report 5 BATCH RELEASES 5.1 Liquid 5 .1.1 Number of batch releases: 20 releases in the 1st quarter, 2015 27 releases in the 2nd quarter, 2015 15 releases in the 3rd quarter, 2015 7 releases in the 4th quarter, 2015 5.1.2 Total time period for batch releases: 50,145 minutes 5.1.3 Maximum time for a batch release: 1,638 minutes 5.1.4 Average time period for batch release: 727 minutes 5.1.5 Minimum time pe~iod for a batch release: 160 minutes 5.1.6 Average stream flow during periods of release of effluent into a flowing stream: 6.85E+5 gpm circulating water Al.1-4 2015 Effluent and Waste Disposal Annual Report 5 .2 Gaseous 5.2.1 Number of batch releases: 86 releases in the 1st quarter, 2015 85 releases in the znd quarter, 2015 99 releases in the 3rd quarter, 2015 129 releases in the 4th quarter, 2015 5.2.2 Total time period for batch releases: 7,560 minutes 5.2.3 Maximum time for a batch release: 354 minutes 5.2.4 Average time period for batch release: 19 minutes 5.2.5 Minimum time period for a batch release: 5 minutes Al.1-5 2015 Effluent and Waste Disposal Annual Report 6 ABNORMAL RELEASES 6.1 Liquid 6.1.1 Number of Releases: 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.1.2 Total activity released (Ci) : 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.2 Gaseous 6.2.1 Number of Releases: l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.2.2 Total activity released {Ci): l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 Al.1-6 2015 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! 11. FISSION GASES I H3 XE135m KR85 XE131m XE133m XE133 XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES I131 I132 I133 I Ci I Ci I Ci !Total for Period I Ci 13. PARTICULATES MN54 C060 CS137 I Ci I Ci I Ci !Total for Period I Ci 3.13E+Ol 3.13E+Ol

DENOTES SUPPLEMENTAL ISOTOPES 2.41E+Ol 2.41E+Ol 4.0SE-07 4.0SE-07 Al.1-7 2.30E+Ol 2.30E+Ol 2.63E-07 2.63E-07 2.46E+Ol 2.46E+Ol 1.83E-10 1.83E-10 2015 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES BATCH MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! 11. FISSION GASES I H3 AR41 KR85 XE131M XE133M XE133 XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES I131 I133 I Ci I Ci !Total for Period I Ci 13. PARTICULATES CS137 I

BR82 I Ci I Ci !Total for Period I Ci 5.00E-02 2.41E-01 4.86E-01 9.09E-03 7.86E-01 2.18E-09 5.02E-06 5.02E-06

DENOTES SUPPLEMENTAL ISOTOPES 6.57E-02 1. 92E-01 4.28E-02 2.62E-04 3.0lE-01 3.07E-06 3.07E-06 Al.1-8 6.56E-02 1. 21E-Ol 2.67E-01 1.40E-Ol 6.79E-04 5.94E-Ol 6.SOE-02 2.04E-01 1.16E-01 2.29E-01 3.80E-04 6.14E-01 2015 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES Units 1st 2nd 3rd 4th I Est. I Quarter I Quarter I Quarter I Quarter !Total I I I I I Error, % I IA. I FISSION AND I I !ACTIVATION GASES I 11. I Total Release I Ci I 7.37E-011 2.35E-011 5.29E-011 4.82E-Oll 11.5 12. !Average release I Irate for period luCi/secl 9.48E-021 2.99E-021 6.65E-021 6.06E-021 I I I I I I 13. I Percent of 1% Garnmal 8.47E-031 7.15E-031 1.75E-021 1.02E-021 I I applicable limit* I Beta I 5.94E-031 1.34E-031 5.88E-021 2.34E-031 I B. I IODINES 11. ITotal I-131 I Ci I O.OOE+OOI 4.0BE-071 O.OOE+OOI O.OOE+OOI 23.4 12. !Average release I Irate for period luCi/secl O.OOE+OOI 5.19E-081 O.OOE+OOI O.OOE+OOI I I I I I I I 3. I Percent of I % I I applicable limit* I IC. I PARTICULATES 11. I Particulates withl Ci I lhalf lives>8 daysl I O.OOE+OOI 1.48E-071 O.OOE+OOI O.OOE+OOI I I I I I I 2.lBE-091 1.47E-121 O.OOE+OOI O.OOE+OOI I I I I I 12. !Average release I Irate for period luCi/secl 2.SOE-101 1.86E-131 O.OOE+OOI O.OOE+OOI I I I I I I I 3. I Percent of I % I I applicable limit* I I 4. I Gross alpha I I radioactivity ID. I TRITIUM I Ci I I 7.98E-101 5.31E-131 O.OOE+OOI O.OOE+OOI I I I I I 1<6.50E-071<8.82E-071<7.79E-071<6.43E-071 I I I I I 27.7 I I 11. I Total Release I Ci I 3.13E+Oll 2.42E+Oll 2.31E+Oll 2.47E+Oll 13.2 12. !Average release I Irate for period luCi/secl 4.02E+OOI 3.07E+OOI 2.91E+OOI 3.lOE+OOI I I I I I I 13. I Percent of I % I I applicable limit* I I 2.29E-021 1.75E-021 1.66E-021 1.77E-021 I I I I I

Applicable limits are expressed in terms of dose. See Appendices Al.2-1 through Al.2-4 Al.1-9 2015 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CS137 I Ci I Ci BATCH MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CR51 MN54 FE55 C058 C060 NI63 I *KR85 ZR95 NB95 M099 TC99m AGllOm SB124 SB125 CS134 CS137 I *XE135 I131 I *XE133 I *XE133m I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci 4.90E+02 1.95E-05 3.84E-05 6.43E-05 3.82E-04 1.94E-05 1. 30E-05 7.57E-07 9.BOE-07 2.19E-05

DENOTES SUPPLEMENTAL ISOTOPES 3.93E+02 1.09E-03 7.33E-05 3.lBE-05 6.67E-04 5.02E-06 2.lOE-06 1.24E-05 1.94E-06 4.91E+02 4.76E-05 3.74E-05 1.38E-06 1. 20E-05 I* --------1. 05E-05 2.09E-05 1.20E-06 1.41E-05 6.BlE-06 Al. 1-10 9.31E+Ol 2.89E-05 5.50E-05 3.19E-04 3.31E-06 9.66E-06 1.30E-06 3.25E-06 IA. I FISSION AND I !ACTIVATION I !PRODUCTS 11. I Total Release 12. !Average diluted I I concentration I lduring period 13. I Percent of 2015 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES BATCH MODE Units I Ci luCi/ml I I % 1st 2nd 3rd 4th I Est. I Quarter I Quarter I Quarter I Quarter !Total I I I I IError,%1 I 5.39E-041 1.93E-031 8.76E-051 4.17E-041 15.1 1.58E-lll 4.15E-111 2.16E-121 4.64E-lll I I I I I I I I I !applicable limit I I 9.61E-051 l.45E-041 4.0lE-051 2.SOE-041 I I I I I IB. I TRITIUM 11. I Total Release 12. !Average diluted I I concentration I lduring period 13. I Percent of I Ci luCi/ml I I % I 4.90E+021 3.93E+021 4.91E+021 9.31E+Oll 10.1 1.43E-051 8.44E-061 1.21E-051 l.04E-051 I I I I I I I I I !applicable limit I I 1.43E+OOI 8.44E-011 1.21E+OOI 1.04E+001 I I I I I IC. I DISSOLVED AND I !ENTRAINED GASES 11. !Total Release 12. !Average diluted I I concentration I lduring period 13. I Percent of I Ci luCi/ml I I % I 2.19E-051 1.41E-051 6.81E-061 3.25E-061 18.4 I 6.41E-131 3.03E-131 l.68E-131 3.62E-131 I I I I I I I I I !applicable limit I I 3.21E-071 1.52E-071 8.39E-081 1.81E-071 I I I I I ID. I GROSS ALPHA I !RADIOACTIVITY I ITOTAL RELEASE IE. I VOLUME OF WASTE I !RELEASED IF. !VOLUME OF I !DILUTION WATER I !USED DURING I !PERIOD Ci l<l.17E-041<1.58E-041<8.78E-051<4.10E-05J N/A I I I I I I I I I I I Liters! 1.22E+061 1.64E+06J 9.14E+051 4.26E+051 I I I I I I Liters I I I I 3.42E+10J I I I 4.66E+10J I I I Al.1-11 4.06E+101 I I I 8.98E+091 I I I 2.00 I I 3.48 IA. I FISSION AND I !ACTIVATION I !PRODUCTS 11. !Total Release 12. !Average diluted I I concentration I lduring period 13. I Percent of 2015 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES CONTINUOUS MODE Units I Ci luCi/ml I I % 1st 2nd 3rd 4th I Est. I Quarter I Quarter I Quarter I Quarter !Total I I I I IError,%1 I O.OOE+OOJ O.OOE+OOI O.OOE+OOI O.OOE+OOI N/A O.OOE+OOJ O.OOE+OOJ O.OOE+OOI O.OOE+OOJ I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOJ I I I I I IB. I TRITIUM 11. I Total Release 12. !Average diluted I I concentration I !during period 13. I Percent of I Ci JuCi/ml I I % I O.OOE+OOJ O.OOE+OOJ O.OOE+OOI O.OOE+OOJ N/A O.OOE+OOJ O.OOE+OOJ O.OOE+OOI O.OOE+OOJ I I I I I I I I I Japplicable limit I I O.OOE+OOI O.OOE+OOI O.OOE+OOJ O.OOE+OOI I I I I I JC. I DISSOLVED AND I !ENTRAINED GASES 11. I Total Release J2. !Average diluted I Jconcentration I lduring period J3. I Percent of I Ci JuCi/ml I I % I O.OOE+OOI O.OOE+OOJ O.OOE+OOJ O.OOE+OOI N/A O.OOE+OOJ O.OOE+OOJ O.OOE+OOJ O.OOE+OOI I I I I I I I I I !applicable limit I I O.OOE+OOJ O.OOE+OOJ 0.00E+OOJ O.OOE+OOI I I I I I JD. I GROSS ALPHA I !RADIOACTIVITY I JTOTAL RELEASE IE. I VOLUME OF WASTE I !RELEASED IF. JVOLUME OF I !DILUTION WATER I IUSED DURING I !PERIOD Ci 0.00E+OOI O.OOE+OOI O.OOE+OOl<l.35E-041 N/A I I I I I I I I I Liters! O.OOE+OOI O.OOE+OOJ 0.00E+OOI 0.00E+OOJ I I I I I I Liters I I I I O.OOE+OOI I I I O.OOE+OOI I I I Al.1-12 O.OOE+OOI I I I O.OOE+OOI I I I 2.00 I I 3.48

" 2015 Effluent and Waste Disposal Annual Report Solid Waste and Irradiated Fuel Shipments Solid Waste Shipped Offsite for Burial or Disposal ~' '"~e of Waste Unit Estimated amount Estimated Total Error,% a) Spent resins, filters, sludge, m3 2.44E+02 1.00E+OO evaporator bottoms, etc. Curies 3.73E+02 3.75E+OO b) Dry compressible waste, ms 5.34E+02 1.00E+OO contaminated equipment, etc. Curies 1.01E+OO 6.48E+OO ms c) Irradiated components, control Curies rods, etc. d) other (contaminated soil) ms Curies 2) Estimate of Principle Radionuclide Composition a) H-3 5% Co-58 11 % Sb-125 2% Cs-137 l 3 % Mn-54 2% Co-60 10% Cs-134 2.5% Fe-55 9% Ni-63 55% C-14 0.5% b) Ni-59 1% Co-58 3% Sb-125 5% Mn-54 2% Co-60 39% Zr/Nb-95 1 % Fe-55 35.5 % Ni-63 12 % Zn-65 1% C-14 0.5% 13) Solid Waste Disposition No. of Shipments Mode of Transportation Destination 34 Truck Oak RidQe, TN 2 Truck Erwin, TN 1 Truck KinQston, TN 4) Type of Containers used for Shipment: Containers used are excepted packages, Type A, Sea Land, metal boxes, drums, tankers, and hi h inte rit containers HICs . II 5) Solidification Agent: There were no solidifications performed during this report period. Al.1-13 I 2015 Effluent and Waste Disposal Annual Report Yearly Release Rates GASES Fission and Activation Gases Total Release l.98E+OO Curies Average Release Rate 6.30E-02 µCi/sec % of Applicable Limits

y2.17E-02 % f3 3 .06E-02 % Iodines Totall-131 Release 4.08E-07 Curies Average Release Rate 5.19E-08 µCi/sec % of Applicable Limit* 4.57E-Ol % Particulates Total Release 2. l 8E-09 Curies Average Release Rate l.40E-10 µCi/sec % of Applicable Limit* 7.98E-10 % LIQUIDS Fission and Activation Products Total Release 2.97E-03 Curies Average Diluted Concentration 2.65E-1 l µCi/ml % of Applicable Limits*. Total Body l.43E+OO % Organ 4.30E-01 %

Applicable limits are expressed in terms of the annual 10 CFR 50, Appendix I, dose limits. Al.1-14 Site Boundary and Nearest Residence Listing The following distances were used in the calculation of the maximum individual doses: Sector Direction Boundary (Meters) Nearest Residence (Meters) A N 651 659 B NNE 617 660 C NE 789 943 D ENE 1497 1747 E E 1274 1716 F ESE 972 1643 G SE 629 1640 H SSE 594 964 J s 594 997 1 K SSW 629 942 Al.1-15 Summary of Maximum Individual Doses First Quarter 2015 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDffi(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body l.69E-02 Child Receptor 1 l.13E+OO l.5E+O Liquid Liver 1.69E-02 Child Receptor 1 3.39E-01 5.0E+O Noble Gas Air Dose 4.23E-04 Any 651 (N) 8.47E-03 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 5.94E-04 Any 972 (ESE) 5.94E-03 l.OE+l (Beta-mrad) Age Iodines and Total Body 1.62E-02 Child 659 (N) 2.16E-01 7.5E+O Particulates Al.2-1 Summary of Maximum Individual Doses Second Quarter 2015 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body l.19E-02 Child Receptor 1 7.91E-01 l.5E+O Liquid Liver 1.20E-02 Child Receptor 1 2.39£-01 5.0E+O Noble Gas Air Dose 3.58E-04 Any 651 (N) 7.15£-03 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 1.34E-04 Any 651 (N) l.34E-03 l.OE+l (Beta-mrad) Age Iodines and Total Body 1.95E-02 Child 659 (N) 2.60E-01 7.5E+O Particulates Al.2-2 Summary of Maximum Individual Doses Third Quarter 2015 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 1.27E-02 Child Receptor 1 8.48E-01 1.5E+O Liquid Liver 1.27E-02 Child Receptor 1 2.55E-01 5.0E+O Noble Gas Air Dose 8.73E-04 Any 651 (N) 1.75E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 5.88E-03 Any 629 (SSW) 5.88E-02 l.OE+l (Beta-mrad) Age Iodines and Total Body 4.61E-02 Child 659 (N) 6.14E-01 7.5E+O Particulates Al.2-3 Summary of Maximum Individual Doses Fourth Quarter 2015 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 2.47E-03 Child Receptor 1 l.65E-01 l.5E+O Liquid Liver 2.48E-03 Child Receptor 1 4.96E-02 5.0E+O Noble Gas Air Dose 5.lOE-04 Any 651 (N) l.02E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 2.34E-04 Any 651 (N) 2.34E-03 l.OE+l (Beta-mrad) Age Iodines and Total Body 1.57E-02 Child 942 (SSW) 2.lOE-01 7.5E+O Particulates Al.2-4 2015 GPI Sample D_ata Samples analyzed for trit_ium. Vahws noted are in microcuries. per milliliter (uCi/mL) Lower Limit of Detection== LLD * ~;'.~~~;~;0~+t¥~ A~{i k::;:,,,o;:,"'"*'-**-""1 62/f5(26fJii',i' .. :,;:/\:* l 01/26/20 t~}S~! f:
.,;r' .. ;-,.~,,,,.-*,t* , *()5/29/i(fiif~

1~*0~~?:0~2g_i§i:; 05/31/20'1:s: : , r *0~124120 f5*~tl ,' ()_6/'l,5120 l? ... fi6&1:.Zt12015'~~ ** , .... , *.* '" .... V.d " ,;;,.-::t~H~1'.st:::,,c.'l;ci " ,:::-.c;:o.;c*, /,<,; ~::;?;!:f:::':'2~£!t:\;,;:J H1i~\Bi'tit'.;;~;;:;,;2.'t . 07/04/20is(::.," : *~I~ii1~~gt1* r_-091{4/2015':?~ ,_ --.,-~~.::.:,c:: .. r~n}g~;d~{~iJ (Note: Wells MW-22 through MW-27 are qiulti-port wells installed in the Fall of 2009, with tlrree sample points placed at different depths. S= Shallow M= Middle D= Deep.) (Note: A*" symbol following a sample resultdenotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-1 2015 OPI Sample Data Samples analyzed for tritiwn. Values noted. are in microc;uries per milliliter (uCi/mL)

Lower Limit of Detection= LLD * * * ,. ',. . ,,* .. ,, . . . ., (Note: Wells MW-22 through MW7 27 are multisport wells installed in the Fall of 2009, with three sample points plac~d at different depths. S= Sb,allow M= Middle D= Deep.) (Note: A"*" syml:>ol following a sa1nple result denotes a gamma count was perfonned. Any gamma results aboye LLD will l;Je addit.ionally flagge~ and documented in thean!!,lysis section.) Al.3-'2 2015 GPI Sample Data San1ples analyzed for tritium. Vaiues :tidted are in microcuries per milliliter (uCi/~) . . Lower Limit of,Detectfon = LLD . (Note: A.'*'*" symbol following a sample result denot.es a gamma count was performed. Any gamma results above (LD will be additionally flagged and documented in the analysis section.) Al.3-3 2015 GPI Sah1ple Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD * ~n~.,-,?Ji:i.(:':,:cIJ ""0,..---4',,,:v,:,"i"'" ,*:0111_<>12g*1:s.;:) i~ff J/i912c>Ts?J 1-> -* '-, ** ,,_,i.;1 P,***,,,._hl -Q2/:2_6/201}' . (04796).il(iJ: L _____ :;_ , _ 041i:112ors.:-.: :;:: _ * . ,,, ; -,_ -I '04/[5/20}51,,'; 04/!9/~Ql5 < : .04724/201 $.t-l oshq1~011:> : : f:,osh:1nois>~ , -** -. *""" *'-~., .. ,,,.. ,,,,.,,~, -*611%4120 if i, 06/26/20{5j:'. -06/2,9/20 l S : --** * :, 01 lcit?1.ots}:; ; -~-;..,"'"J' *-"'~*-~._:;

07/Q~/2Q)_~ ; ;-: _ _ __ ;/o~fd§(~OX~]~~f-::i}{i:_}j;,:c:'*;_)

07110/2015 *' -,' _ r 0,7 LH(?O_! ti;i' i ::t1,9;~;",); ;}?{.~?,!:?~}:-}: \J.r>-.-::\--,-: 0'9/i4/10J5-:-.::-; o;izi12:tfis:-* . (toio8,ioJ~i) rt~-:t*?':'::*:* _ -I 0(07 /20 I$ <.!-..LD r , 101iv20f$~~ '-'--'"*"'"'Y,,,,_.,_, __ ;.:; ll/20/20,ff' -_ ---~-12h5/2015}'.'; ! ... .'\ ,*.,>-',f "'~ ""*"'* '""* .:.,, ;;-< (Note: A"*" symbol following a sample result denotes a gamma count was perfonned. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-4 2015 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) .._,..,,,~\,,llUll = LLD ?'10/06/20f57F.¥ l,'.~'.<:"',~*:t* *-::"'* *-:*~)'.' .' .10107ams ,:; f:' 1 Oll 4/20,l'.;iltd ~'.{:!;i'JiffZ::'} aibs1,2ols\:'.* f :_{*;~:~~~~:{0{~~)~~-~~j , ,,,,,*,,u.*;*;*,*;~:..-,,, *. ,' c. (Note: A "*" symbol following a saniple result denotes a ga!hma count was perfonned. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit (Note: A "*" symbol following a -sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-5 2015 GPI Sample Data Analysis of the Sample Data The Groundwater Protection Initiative (GPI) Sample Data for 2015 indicates no groundwater contamination in excess of the reporting threshold of2.00E-5 uCi/mL for tritium. Gamma spectroscopy was performed on all Radiological Environmental Monitoring Program wells quarterly. Those results are not actual GPI results so are not included in the ARERR, but are part ofCNP's 2015 Annual Radiological Environmental Operating Report. There were no positively identified radionuclides from plant effluents detected in any of the GPI well samples. The LLD value used for tritium counting of the samples varied between 9.42E-7 and 9.6.3E-7uCi/mL, depending on which scintillation counter was used. This is well below the required maximum LLD value of2.00E-6 uCi/mL per theODCM. While no valid unsuspected tritium values were found above LLD for 2015, values found above the LLD are not abnormal, unexpected, or inconsistent with past sampling history. The samples observed above LLD historically were expected results from the release oftritiated water into the Absorption Pond, a licensed pathway and part of plant design, or the result of recapture deposition of tritium from licensed radioactive gaseous r~lease points. The 2015 results were expected considering the reduction in tritium released to the Absorption Pond and typical rainfall experienced. Wells located inside the Protected Area of the plant are subject to recapture deposition of tritium and may show occasional sample results above LLD values following rainfalls and snow melt. The results observed in 2015 continue to reflect normal expectations and behaviors as they relate to recaptured tritium for the weather conditions observed in 2015. Two additional wells were installed in 2015, MW-28 and MW-29. These wells are shallow wells placed in close proximity to each Unit's Refueling Water Storage Tanks to improve leak detection capabilities. These wells are also closer to the Containment structures and plant ventilation stacks to better monitor tritium inside the Protected Area. . , The sample data indicates that no radioactive spills or unidentified leaks have occurred in 2015 impacting groundwater. The sample results indicate proper well placement to ensure the protection of the groundwater and early identification of any abnormal conditions involving groundwater. This is validated by the demonstrated ability to monitor percolation from the Absorption Pond and recaptured tritium in precipitation, with flow direction and behavior acting as described in the plant licensing documents. Al.3-6

! Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed ;lnd Direction Total Period Period of Record = 01/01/2015 -03/31/2015 Elevation: Speed: SP060M Direction: D1R60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19 -25 > 25 Total N -1 3 14 21 3 0 42 NNE 0 9 1 2 0 13 NE I 2 3 1 0 0 7 ENE 0 6 9 2 0 0 17 E 0 JO 12 0 0 0 22 ESE 0 11 6 2 0 0 19 SE 0 9 3 6 0 0 18 SSE 0 14 14 .9 0 38 s 1 9 7 14 3 I 35 SSW 0 2 2 3 0 0 7 SW 1 6 13 15 I 0 36 WSW 0 7 20 10 11 I 49 w 0 16 15 11 2 0 44 WNW 0 10 12 5 3 0 30 NW 0 8 17 24 3 I 53 NNW I 6 14 15 3 0 39 Total 5 120 170 139 32 3 469 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 469 Total Hours for Period 2160 A2.1-1 L_

, Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2015 -03/31/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 2 4 6 2 0 14 NNE 0 2 11 4 0 0 17 NE I 0 IO 5 0 0 16 ENE 0 I I 2 5 0 9 E 0 2 6 0 0 0 8 ESE 0 5 3 2 0 0 10 SE 0 0 I 0 0 0 1 SSE 4 6 2 0 0 13 s I 4 8 I 2 0 16 SSW 0 3 5 5 I 0 14 SW 2 3 13 5 0 0 23 WSW 0 ,., I 5 2 0 11 .) w 0 0 1 6 5 0 12 WNW 0 2 2 3 8 4 19 NW 2 0 2 4 3 2 13 NNW 0 5 5 4 5 2 21 Total 7 36 79 54 33 8 217 Calm llours not Included above for : Total Period* 0 Valid Hours for this Stability Class for: Total Period 217 Total Hours for Period 2160 A:2..1-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2015. -03/31/2015 Elevation: Speed: SPD60M Direction: DlR60M Lapse: DT60M Stability Class C Delta Temp~rature

Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19 -25 > 25 Total N 0 2 9 8 11 4 34 NNE 0 2 10 9 3 0 24 NE 0 3 12 3 0 0 18 ENE 0 4 9 2 2 1 18 E I 5 12 4 1 0 23 ESE 0 8 9 0 0 0 17 SE 0 6 3 3 0 0 12 SSE I 7 9 5 2 0 24 s 0 2 12 7 2 0 23 SSW 1 6 11 5 4 0 27 SW 0 2 10 11 1 2 26 WSW 0 I 3 7 8 6 25 w 0 0 2 13 12 2 29 WNW 0 I 2 8 18 2 31 NW 0 2 2 8 13 9 34 NNW 0 4 11 16 9 11 51 Total 3 55 126 109 86 37 416 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 416 Total Hours for Period 2160 A2.1-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2015 -03/31/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class. D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19 -25 > 25 Total N 3 4 9 7 4 0 27 NNE 0 6 7 5 0 0 18 NE 0 7 10 3 0 0 20 ENE 2 10 10 3 0 0 25 E 2 9 12 0 0 24 ESE I II 7 " J 0 23 :) SE I 13 10 16 4 0 44 SSE 4 " 9 JO 5 0 31 :) s 0 4 26 7 6 1 44 SSW 0 8 41 22 7 0 78 SW 0 5 21 31 9 I 67 WSW 1 4 11 39 9 I 65 w 0 8 10 20 9 48 WNW I 5 8 17 11 2 44 NW I 2 19 22 15 7 66 NNW 0 6 2 14 8 10 40 Total 16 105 212 220 88 23 664 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 664 Total Hours for Period 2160 A2.1-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 01/01/2015 -03/31/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 0 0 l 0 0 1 NNE l 4 0 0 0 0 5 NE 3 6 7 0 0 0 16 ENE 0 5 3 l 0 0 9 E 0 2 10 5 0 0 17 ESE 0 3 5 3 0 0 II SE I 6 7 9 0 0 23 SSE I 3 7 4 0 0 15 s 0 2 16 13 0 0 31 SSW 0 5 18 11 0 0 34 SW 0 16 4 l 0 22 WSW 2 I 11 6 3 0 23 w I 2 5 7 2 0 17 WNW 0 3 2 4 3 0 12 NW 2 2 5 5 0 0 14 NNW 0 I 2 2 0 0 5 Total 11 46 114 75 9 0 255 Calm Hours not Included above for: Total period Q Valid Hours for this Stability Class for: Total Period 255 Total Hours for Period 2160 A2.1-5 Site: AEPCook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 01/01/2015 -03/31/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 1 1 0 0 0 2 NNE 0 2 I 0 0 0 3 NE 0 I 0 0 0 0 ENE 0 I 4 0 0 0 5 E I .] 3 1 0 0 6 ESE 0 I 5 2 0 0 8 SE 1 3 1 0 0 0 5 SSE 0 2 7 3 0 0 12 s 0 2 6 5 0 0 13 SSW 0 2 4 2 0 0 8 SW 0 9 2 0 0 12 WSW I 2 0 0 0 4 w 0 3 I I 0 0 5 WNW 0 I 0 0 0 2 NW 0 .0 0 0 0 NNW 0 0 0 0 0 Total " 24 45 16 o. 0 88 ., Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 88 .Total Hours for Period 2160 A2.1-6 I Site: AEP Cook JoiQt Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 01/01/2015 -03/31/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1 -4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 I 0 0 0 0 I NNE 0 0 0 0 0 0 0 NE 0 3 0 0 0 4 ENE 0 2 3 0 0 0 5 E 0 1 3 2 0 0 6 ESE 0 0 2 0 0 0 2 SE 0 I 2 0 0 0 3 SSE 0 0 2 0 0 0 2 s 0 0 5 2 0 0 7 SSW 0 0 6 1 0 0 7 SW 0 0 3 0 0 0 3 WSW 0 0 0 0 0 0 *O w 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Total 0 6 29 5 0 0 40 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 40 Total Hours for Period 2160 A2.1-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 01/01/2015 -03/3 1/2015 Elevation: Speed: SPD60M Dir~ction: D1R60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1 -4 4-8 8-13 13 -19 19 -25 > 25 Total N 4 13 37 43 20 4 121 NNE 1 17 38 19 5 0 80 NE 5 20 45 12 0 0 82 ENE 2 29 39 10 7 l 88 E 4 30 58 13 l 0 106 ESE 39 37 12 1 0 90 SE 3 38 27 34 4 0 106 SSE 7 ..,.., 54 33 8 0 135 .}.} s 2 ?" _.:, 80 49 13 2 169 SSW 26 87 49 12 0 175 SW 3 18 85 68 12 3 189 WSW 4 17 48 67 33 .8 177 w 29 34 58 30 .., 155 .} WNW 22 27 37 43 8 138 NW 5 15 45 63 34 19 181 NNW 23 34 51 25 23 157 Total 45 392 775 618 248 71 2149 Calm Hours not Included above for : Total Period 0 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 11 Valid Hours for this Stability Class for: Total Period 2149 Total Hours for Period 2160 A2..1-8 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2015 -06/30/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction . 1 -4 4-8 8 -13 13-19 19 -25 > 25 Total N 0 15 33 25 I 0 74 NNE 0 3 I 3 0 0 7 NE 0 3 2 4 0 0 9 ENE 0 3 7 I 0 0 I 1 E 0 4 6 8 0 0 18 ESE 0 5 6 8 I 0 20 SE 0 5 12 4 0 0 21 SSE 0 6 13 10 f-0 31 s 0 3 15 9 I 0 28 SSW 0 4 3 1 0 0 8 SW 0 3 5 9 l 0 18 WSW I 4 30 25 9 I 70 w 0 19 26 12 4 0 61 WNW 0 15 17 13 1 0 46 NW 0 15 15 8 I 0 39 NNW 0 23 49 26 0 0 98 Total 130 240 166 21 559 Calm Hours not Included above for : Total Period 0 Valid Hours for thi~ Stability Class for: Total Period 559 Total Hours for Period 2184 A2.2-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2015 -06/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 3 7 7 0 0 17 NNE 0 I 0 0 0 0 I NE I 2 I 0 0 0 4 ENE 0 2 I 2 0 0 5 E 0 I 6 4 1 0 12 ESE 0 0 0 3 0 0 3 SE 0 4 5 1 0 0 10 SSE I 5 7 0 0 0 13 s 0 2 5 5 0 0 12 SSW 0 0 4 3 1 0 8 SW 0 3 7 5 0 0 15 WSW 6 4 3 3 I 18 w 0 4 3 2 2 0 11 WNW 0 11 2 0 0 0 13 NW 1 4 3 1 0 0 9 NNW I 3 1 0 0 6 Total 5 49 58 37 7 157 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 157 Total Hours for Period 2184 A2.2-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2015 -06/30/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 4 10 7 0 0 21 NNE 2 3 0 3 0 0 8 NE 0 0 I 0 0 0 I ENE 0 0 4 5 0 0 9 E 0 2 6 7 2 0 17 ESE 0 0 I 8 3 0 12 SE 0 2 5 I 0 0 8 SSE I I 1 0 0 0 3 s 2 2 0 4 I 0 9 SSW 1 7 5 5 2 0 20 SW 1 I 2 3 2 1 10 WSW 0 2 0 4 2 9 w I 4 2 3 0 11 WNW 5 5 5 1 0 17 NW I 3 1 3 2 0 10 NNW 0 6 2 0 0 9 Total 14 42 44 51 20 3 174 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 174 Total Hours for Period 2184 A2..2-3

S.ite: AEP Cook Joint Frequency Distribution 1-:lours at Each Wind Speed and Direction Total Period Period of Record= 04/01/2015 -06/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction I -4 4-8 8-13 13 -19 19 -25 > 25 Total N 12 19 12 0 0 44 NNE 3 4 I 1 3 1 0 22 NE 3 2 7 16 0 0 28 ENE 3 5 10 4 1 0 23 E I 8 25 15 3 0 52 ESE I 10 18 18 4 0 51 SE 0 8 8 12 0 0 28 SSE 2 3 12 9 1 0 27 s 4 5 17 26 4 0 56 SSW 2 5 15 22 5 1 50 SW 2 6 21 37 9 0 75 WSW 1 7 14 26 9 4 61 w I 3 6 12 6 2 30 WNW 3 3 9 IO 4 0 29 NW 2 7 9 8 0 0 26 NNW ]' 8 12 4 0 0 25 Total 30 96 213 234 47 7 627 Calm Hours not Included above for : Total Pe.riod 0 Valid Hours for this Stability Class for: Total Period 627 Total Hours for Period 2184 I A2.2-4 Site: AEP Cook Joint Frequency Distribution Hours at E;ach Wind Speed and Direction Total Period Period of Record = 04/01/2015 -06130/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class E Delta Temperatµre Slightly Stable Wind Speed (mph) Wind Direction 1 -4 4-8 8 -13 13 -19 19-25 > 25 Total N 2 I 11 0 0 0 14 NNE 0 10 9 I 0 0 20 NE I 5 14 I 0 0 21 ENE 0 4 6 2 0 0 12 E 2 2 12 0 0 0 16 ESE 0 3 3 4 0 0 10 SE 0 5 28 4 0 0 37 SSE 0 2 14 9 0 0 25

s 0 4 13 42 0 0 .59 SSW 0 2 13 IO 0 0 25 SW 0 4 9 12 0 0 25 WSW I 3 11 4 0 0 19 w 0 2 3 2 0 0 -7 WNW 3 4 4 2 1 0 14 NW 0 5 8 0 2 o* 15 NNW 0 l 6 0 0 0 7 Total 9 57 164 93 3 0 326 Calm Hours not Includecl above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 326 Total Hours fo(Period 2184 A2.2-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2015 -06/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1-4 4-8 8~ 13 13 -19 19 -25 > 25 Total N I 0 2 0 0 0 3 NNE 0 4 1 0 0 0 5 NE I 6 7 0 0 0 14 ENE 0 8 7 2 0 0 17 E 0 I 7 4 0 0 12 ESE ~* 3 5 2 0 0 13 ., SE 0 4 10 2. 0 0 16 SSE 1 4 4 6 0 0 15 s 0 1 16 9 0 0 26 SSW 0 1 8 7 0 0 16 SW 0 0 9 I 0 0 10 WSW I 4 4 0 0 0 9 w 1 3 0 0 0 0 4 WNW 0 2 1 0 0 0 3 NW 0 2 0 0 1 0 3 NNW 0 6 3 0 0 0 9 Total 8 49 84 33 0 175 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 175 Total Hours for Period 2184 A2.2-6 Site: AEPCook Joint Frequency Distributio_n Hours at Each Wind Speed and Direction Total Period Period of Record = 04/01/2015 -06/30/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse:, DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 0 1 0 0 0 I NNE 0 3 I 0 0 0 4 NE 0 3 9 0 0 0 12 ENE 0 8 9 0 0 18 E 2 3 *7 3 0 0 15 ESE 0 J 3 I 0 0 5 -SE 0 6 8 2 0 0 16 SSE 0 3 JI 1 0 0 15 s 2. 5 9 8 0 0 24 SSW 0 I 3 4 0 0 8 SW 4 .., 5 0 0 0 12 .) WSW 5 3 0 0 0 9 w 0 0 I 0 0 0 I WNW 0 0 0 0 0 0 0 NW 0 I I 0 0 0 2 NNW 0 0 0 0 0 0 0 Total 9 42 71 20 0 0 142 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 142 Total Hours for Period 2184 A2.2-7 I I Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 04/01/2015 -06/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Delta-Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19 -25 > 25 Total N 4 35 83 51 l 0 174 NNE 5. 28 23 10 I 0 67 NE 6 21 41 21 0 0 89 ENE 3 30 44 17 I 0 95 E 5 21 69 41 6 0 142 ESE 4 22 36 44 8 0 I 14 SE 0 34 76 26 0 0 136 SSE 5 24 62 35 .., 0 129 .) s 8 22 75 103 6 0 214 SSW 3 20 51 52 8 I 135 SW 7 20 58 67 12 I 165 WSW 6 31 66 59 25 8 195 w 3 35 41 29 15 2 125 WNW I 1 40 38 26 7 0 122 NW 4 37 37 20 6 0 104 NNW 2 45 74 33 0 0 154 Total 76 465 874 634 99 12 2160 Calm Hours not Included above for : Total Period 0 Variable Direction Hours for: Total Period o* Invalid Hours for: Total Period 24 Valid Hours for this Stability Class for: Total Period 2160 Total Hours for Period 2184 1<2..2-8 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2015 -09/30/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class A Delta Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19 -25 > 25 Total N 1 5 35 20 7 0 68 NNE 0 2 4 0 0 0 6 NE 0 1 4 3 0 *o 8 ENE 0 4 9 0 0 0 13 E 5 8 0 0 0 14 ESE I 9 11 0 0 0 21 SE 0 8 11 3 0 0 22 SSE 0 9 IO 4 0 0 23 s 0 3 10 14 0 0 27 SSW 0 4 4 IO 0 0 18 SW 0 3 11 11 0 26 WSW 0 16 35 6 3 0 60 w I 23 19 4* 2 0 49 WNW 0 34 20 3 0 0 57 NW 0 17 16 5 1 0 39 NNW 0 17 42 12 2 0 73 Total 4 1.60 249 95 16 0 524 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 524 Total Hours for Period 2208 A2.3-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2015 -09/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19 -25 > 25 Total N 0 2 6 1 1 0 10 NNE 0 0 0 0 1 0 1 NE 0 0 1 0 0 0 I ENE 0 0 0 0 0 0 0 E l 4 2 0 0 0 *7 ESE 0 3 3 0 0 0 6 SE 3 4 0 0 0 0 7 SSE 6 2 2 0 0 I J s 1 7 10 5 0 0 23 SSW 0 5 4 3 0 0 12 SW J 3 5 2 0 0 11 WSW 2 5 9 0 1 0 17 w 0 4 1 I 0 7 WNW 0 3 J 0 0 5 NW 0 2 4 2 0 0 8 NNW 4 0 0 0 6 Total 10 52 49 17 4 0 132 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 132 Total Hours for Period 2208 A2.3-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2015 -09/30/2015 Elevation: Speed: SPDGOM Direction: D1R60M Lapse: DTGOM Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction I -4 4-8 8-13 13 -19 19-25 > 25 Total N 0 1 5 5 I 0 12 NNE 0 0 0 3 0 0 3 NE 0 1 0 0 0 0 ENE 2 0 0 0 0 0 2 'E 0 0 2 0 0 0 2 .ESE I 3 1 0 0 0 5 SE 0 3 2 *1 0 0 6 SSE 2 3 2 0 0 0 7 s I 7 5 3 0 0 16 SSW 0 4 4 0 0 0 8 SW I 4 4 2 0 0 11 WSW 0 5 8 2 2 0 17 w 2 0 I 2 0 6 WNW 0 4 0 2 0 0 6 NW 0 1 ] 0 0 3 NNW 0 3 0 0 5 Total 9 39 36 20 6 0 110 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period I IO Total Hours for Period 2208 A2.3-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record =

07/01/2015 -09/30/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19 -25 > 25 Total N 0 15 27 8 2 0 52 NNE 0 5 10 11 1 0 27 NE 0 I. 11 2 0 0 14 ENE 1 4 4 0 0 0 9 E 0 6 3 I 0 0 10 ESE 0 2 13 0 0 0 15 SE 2 12 I 4 0 0 19 SSE I 7 18 5 I 0 32 s I 5 22 12 0 0 40 SSW I 5 24 8 *O 0 38 SW I 9 23 21 4 0 58 WSW I 0 11 9 0 0 21 w 2 4 1 12 1 0 20 WNW 0 7 4 8 0 0 19 NW I 6 5 9 5 0 26 NNW 3 13 14 '4 2 0 36 Total 14 IOI 191 114 16 0 436 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 436 Total Hours for Period 2208 A2.3-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 07/01/2015 -09/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction I -4 4-8 8-13 13 -19 19 -25 > 25 Total N 4 13 15 5 0 0 37 NNE 0 4 12 2 0 0 18 NE 1 6 16 0 0 24 ENE 1 7 11 2 0 0 21 E 0 2 7 0 0 0 9 ESE 0 3 13 0 0 0 16 SE I 7 11 I 0 0 20 SSE 0 8 31 6 0 0 45 s 1 3 37 21 0 0 62 SSW 0 8 23 8 0 0 39 SW 1 3 14 4 I 0 23 WSW 0 12 6 0 0 19 w 0 0 3 3 0 0 6 WNW 3 2 9 11 0 0 25 NW 6 10 0 0 o* 17 NNW 3 7 12 0 0 0 22 Total 17 79 236 70 0 403 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 403 Total Hours for Period 2208 A2.3-5 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 07/01/2015 -09/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction 1 -4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 5 5 0 0 0 IO NNE 1 4 7 0 0 0 12 NE 0 6 5 0 0 0 11 ENE 2 11 0 0 0 14 E 1 3 12 4 0 0 20 ESE 0 2 17 0 0 0 19 SE 2 5 15 4 0 0 26 SSE 0 9 26 5 0 0 40 s I 4 19 21 0 0 45 SSW I 3 13 9 0 0 26 SW 0 2 15 I 0 0 18 WSW 0 I 4 0 0 0 5 w 0 0 0 0 0 0 0 WNW 0 2 1 0 0 0 3 NW I I 0 0 0 -, .) NNW 0 0 0 0 0 Total 8 50 151 44 0 0 253 Calm Hours not Included above for,; Total Period Q Valid Hours for this Stability Class for: Total Period 253 Total Hours for Period 2208 A2.3-6 Site: AEPCook Joint Frequency Distribution Hours at Each Wind Speed and Direction

Total Period Period of Record = 07/01/2015 -09/30/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19-25 > 25 Total N 4 3 2 0 0 0 9 NNE 0 0 2 0 0 0 2 NE 4 5 16 0 0 0 25 ENE 3 3 14 I 0 0 21 E 2 8 10 4 0 0 24 ESE 8 14 22 3 0 0 47 SE 2 I I 18 0 0 32 SSE 0 13 27 13 0 0 53 s 0 10 21 9 0 0 40 SSW JO 28 .., 0 0 42 .J SW 3 3 10 2 0 0 18 WSW 0 4 1 0 0 0 11 w 4 2 0 0 0 1 WNW 3 2 0 0 0 6 NW 3 2 I 0 0 0 6 NNW 2 2 I 0 0 0 5 Total 36 93 183 36 0 0 348 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 348 Total Hours for Period 2208 A2.3-7

Site: AEPCook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record = 07/01/2015 -09/30/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 9 44 95 39 11 0 198 NNE I 15 35 16 2 0 69 NE 5 20 53 6 0 0 84 ENE 8 20 49 3 0 0 80 E 5 28 44 9 0 0 86 ESE 10 36 80 3 0 0 129 SE 10 50 58 14 0 0 132 SSE 4 55 116 35 I 0 211 s 5 39 124 85 0 0 253 SSW 3 39 100 41 0 0 183 SW 7 27 82 43 6 0 165 WSW 4 31 86 23 6 0 150 w 6 35 27 21 6 0 95 WNW 6 53 37 25 0 0 121 NW 6 35 38 17 6 0 102 NNW 9 47 71 16 5 0 148 Total 98 574 1095 396 43 0 2206 Calm Hours not Included above for : Total Period 0 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 2 Valid Hours for this Stability Class for: Total Period 2206 Total Hours for Period 2208 A2.3-8 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2015 -12/31/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class A Delta.Temperature Extremely Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 4 15 6 2 0 27 NNE 0 2 2 I I 0 6 NE 0 3 2 3 0 0 8 ENE 0 4 3 11 3 0 21 E 0 2 5 0 0 0 7 ESE 0 I 2 0 0 4 SE 1 4 3 1 4 0 13 SSE 0 4 15 4 3 0 26 s 0 2 6 7 0 0 15 SSW 0 I 5 I 6 0 13 SW 0 3 7 17 0 0 27 WSW 0 0 17 18 3 3 41 w 0 7 11 6 7 I 32 WNW 0 7 8 5 0 0 20 NW 0 5 8 8 2 0 23 NNW 0 2 10 3 0 0 15 Total 51 118 93 31 4 298 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 298 Total Hours for Period 2208 A2.4-1 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2015 -12/31/2015 Elevation: Speed: SPDpOM Direction: DIR60M Lapse: DT60M Stability Class B Delta Temperature Moderately Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13 -19 19-25 > 25 Total N 0 2 3 1 0 0 6 NNE 0 0 0 2 0 0 2 NE 0 0 1 0 0 0 I ENE 0 0 1 1 0 0 2 E 0 3 I 3 I 0 8 ESE 0 I 0 0 0 2 SE 0 0 0 1 0 2 SSE 0 3 2 2 I 0 8 s I 4 4 0 0 10 SSW 0 3 6 4 0 0 13 SW I 3 3 4 0 0 11 WSW 0 3 3 7 0 2 15 w 0 7 3 3 15 WNW 0 l 2 5 3 l 12 NW 0 0 1 0 0 0 1 NNW I 1 I I 0 0 4 Total 3 22 29 43 9 6 112 Calm Hours not Included above for: Total Period 0 Valid Hours for this Stability Class for: Total Period 112 Total Hours for Period 2208 A2.4-2 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2015 -12/31/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class C Delta Temperature Slightly Unstable Wind Speed (mph) Wind Direction 1-4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 2 1 6 1 0 10 NNE 0 0 3 6 1 0 10 NE 0 2 10 2 0 0 14 ENE 0 3 5 I 0 10 E 0 I I 7. 0 10 ESE 0 0 4 3 0 8 SE 0 4 2 3 I I 1 SSE 0 3 3 3 0 0 9 s 0 5 7 2 4 0 18 SSW 0 3 16 6 3 0 28 SW 0 0 9 5 0 0 14 WSW 0 I .., 13 11 8 36 .) w I 0 6 22 10 7 46 WNW 0 0 4 4 5 2 15 NW 2 0 2 0 0 5 NNW 0 2 3 1 0 7 Total 3 24 72 84 50 18 251 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 251 Total Hours for Period 2208 A2.4-3 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2015 -12/31/2015 Elevation: Speed: SPD60M Direction: D!R60M Lapse: DT60M Stability Class D Delta Temperature Neutral Wind Speed (mph) Wind Direction l-4 4-8 8 -13 13 -19 19 -25 > 25 Total N IO I I 8 0 0 30 NNE 5 11 5 0 0 22 NE I 5 14 16 0 0 36 ENE 0 10 17 17 4 0 48 E 5 IO 8 2 0 26 ESE 2 I 8 19 7 0 37 SE 0 I 18 34 12 0 65 SSE 0 7 24 28 15 14 88 s 0 5 33 69 26 3 . 136 SSW J 3 1-8 50 24 3 99 SW 0 2 12 62 10 6 92 WSW 2 2 9 23 22 21 79 w 0 2 7 17 9 17 52 WNW 0 3 6 23 IO 10 52 NW 2 3 9 27 19 61 NNW 2 4 5 10 6 28 Total 13 68 212 416 166 76 951 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 951 Total Hours for Period 2208 A2.4-4 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= 10/01/2015 -12/31/2015 Elevation: Speed: SPD60M Direction: D1R60M Lapse: DT60M Stability Class E Delta Temperature Slightly Stable Wind Speed (mph) Wind Direction 1-4 4-8 8-13 13-19 19 -25 > 25 Total N 0 2 4 2 0 0 8 NNE 0 7 8 0 0 0 15 NE* 0 0 12 .., 0 0 15 .) ENE 1 3 6 4 0 0 14 E 0 3 I l 0 0 15 ESE 0 3 9 4 0 0 16 SE I I 2 13 I 0 18 SSE 0 0 12

24 I 1 38 s 0 7 31 28 0 0 66 SSW 0 .., 15 30 I 0 49 .) SW 0 7 10 0 0 18 WSW 0 l 7 0 0 9 w 0 I 3 0 0 0 4 WNW 0 0 .., 2 0 0 5 .) NW I 3 5 14 I 0 24 NNW 0 4 1 0 0 6 Total 3 37 128 147 4 320 Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 320 Total Hours for Period 2208 A2.4-5 \

~-------------Site: AEPCook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record= J 0/01/2015 -12/31/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT6DM Stability Class F Delta Temperature Moderately Stable Wind Speed (mph) Wind Direction I -4 4-8 8-13 13 -19 19 -25 > 25 Total N 0 1 0 0 0 0 1 NNE 0 0 I 0 0 0 1 NE 2 I 3 0 0 0 6 ENE 0 0 9 2 0 0 II E 0 2 2 2 0 0 6 ESE 0 l IO I 0 0 12 SE I 0 3 I 0 0 5 SSE 0 2 5 7 0 0 14 s 0 I 9 18 0 0 28 SSW 0 1 2 9 0 0 12 SW 0 0 4 4 0 0 8 WSW I I 0 0 0 3 w 1 0 1 0 0 0 2 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 I Total 5 11 50 44 0 0 IIO Calm Hours not Included above for : Total Period 0 Valid Hours for this Stability Class for: Total Period 110 Total Hours for Period 2208 A2.4-6

Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period Period of Record = 10/01/2015 -12/31/2015 Elevation: Speed: SPD60M . Direction: DIR60M Lapse: DT60M Stability Class G Delta Temperature Extremely Stable Wind Speed (mph) Wind Direction 1 -4 4-8 8 -13 13 -19 19-25 > 25 Total N 0 0 3 0 0 0 3 NNE 2 0 0 0 0 0 2 NE 2 2 2 0 0 0 6 ENE 2 0 3 0 0 0 5 E 1 1 8 0 0 0 10 ESE 2 3 4 2 0 0 11 SE I 2 7 3 0 0 13 SSE 0 1 11 7 0 0 19 s I 2 9 7 0 0 19 SSW 0 2 1 3 0 0 6 SW I 3 3 3 0 0 10 WSW 0 0 0 0 0 0 0 w 0 2 0 0 0 0 2 WNW I 2 0 0 0 0 3 NW 1 2 2 0 0 0 5 NNW 0 2 0 0 0 0 2 Total 14 24 53 25 0 0 116 Calm Hours not Included above for: Total Period 0 Valid Houi-s fo.-this Stability Class foi-: Total Period 116 Total Hou.-s for Period 2208 A2.4-7 Site: AEP Cook Joint Frequency Distribution Hours at Each Wind Speed and Direction Summary of All Stability Classes Total Period Period of Record= 10/01/2015 -12/31/2015 Elevation: Speed: SPD60M Direction: DIR60M Lapse: DT60M Delta Temperature Wind Speed (mph) Wind Direction I -4 4-8 8 -13 13 -19 19-25 > 25 Total N 21 37 23 3 0 85 NNE 3 14 25 14 2 0 58 NE 5 13 44 24 0 0 86 ENE 3 20 40 40 8 0 111 E 2 15 30 25 10 0 82 ESE 4 11 32 ,.,,, .J.J 10 0 90 SE 4 9 37 55 21 I 127 SSE 0 20 72 75 20 15 202 s 2 23 99 135 30 3 292 SSW 1 16 63 103 34 3 220 SW 2 12 45 105 10 6 180 WSW 3 8 40 62 36 34 183 w 2 13 29 52 29 28 153 WNW I 13 23 39 18 13 107 NW 6 13 26 51 22 119 NNW 3 16 20 16 7 63 Total 42 237 662 852 260 105 2158 Calm Hours not Included above for: Total Period 0 Variable Direction Hours for: Total Period 0 Invalid Hours for: Total Period 50 Valid Hours for this Stability Class for: Total Period 2158 Total Hours for Period 2208 A2.4-8 OFF-SITE DOSE CALCULATION MANUAL CHANGES The Off-Site Dose Calculation Manual, PMP-6010-0SD-001, was revised during this reporting period. A copy of Revision 25 is included as part of this report. The reasons for the changes and the PORC approval are documented on the Review and Approval tracking form. These changes were determined to maintain the level of radioactive effluent control required by 10 CFR 20.1302, 40 CFR 190, 10 CFR50.36a, and Appendix Ito 10 CFR50 and not adversely impact the accuracy or reliability of effluent, dose, or setpoint calculations. A3.0-l ENCLOSURE 4 to AEP-NRC-2018-35 DONALD C. COOK NUCLEAR PLANT UNITS 1 AND 2 2014 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT, Revision 1 TABLE OF CONTENTS Page Table of Contents 1 I. IL III. IV. V. VI. VIL VIII. Introduction 1 Radioactive Releases and Radiological Impact on Man 1 Liquid Releases 2 Gaseous Releases 2 Solid Waste Disposition 2 Meteorological 3 Offsite Dose Calculation Manual (ODCM) Changes 3 Total Dose 3 Radiation Monitors Inoperable Greater Than 30 Days 4 Noteworthy Conditions Identified in 2014 4 Conclusion 5 LIST OF APPENDICES Title Appendix Al.I 2014 Effluent and Waste Disposal Annual Report -Supplemental Information Al .2 Summaiy of Maximum Individual Doses: First Quarter, Second Quarter, Third Quarter, and Fourth Quarter 2014 Al.3 2014 Groundwater Protection Initiative (GPI) Sample Data A2.l Hours at Each Wind Speed and Direction: First Quarter, 2014 A2.2 Hours at Each Wind Speed and Direction: Second Quarter, 2014 A2.3 Hours at Each Wind Speed and Direction: Third Quarter, 2014 A2.4 Hours at Each Wind Speed and Direction: Fourth Quarter, 2014 A3.0 Offsite Dose Calculation Manual (ODCM) Changes 1 L _____ _ I. INTRODUCTION This report discusses the radioactive discharges from Unit 1 and Unit 2 of the Donald C. Cook Nuclear Plant (CNP) during 2014. This is in accordance with the requirements of CNP Technical Specification (TS) 5.6.3. The table below summarizes the pertinent statistics concerning the Plant's operation during the period from January 1, 2014, to December 31, 2014. The data in this table and the descriptive information on plant operation are based upon the respective unit's Monthly Operating Reports, Performance Indicators and Control Room Logs for 2014. Parameter Unit 1 Unit2 Gross Electrical Energy Generation 8,574,834 9,63'1,872 (Megawatt Hour (MWH)) Unit Service Factor 91.0 97.1 (Percent(%)) Unit Capacity Factor 92.0 99.0 (Maximum Dependable Capacity (MDC)) Net (%) Unit 1 entered the reporting period in Mode 1 at Nominal Full Power (NFP). Small power adjustments were made to facilitate main turbine valve testing throughout the year. The unit performed a normal downpower and was manually tripped on September 24, 2014, entering the refueling outage U1C26. The unit attained criticality on October 23, 2014 and attained NFP on October 27, 2014. On November 1, 2014, a manual trip of the reactor was performed due to degraded cooling water intake conditions caused by severe weather. The unit attained criticality on November 3, 2014 and attained NFP on November 7, 2014. The unit exited the reporting period at NFP. Unit 2 entered the reporting period in Mode 1 at NFP. Small power adjustments were made to facilitate main turbine valve testing throughout the year. The unit commenced a normal planned downpower to 25% on July 11, 2014 to support online maintenance work. The unit returned to NFP on July 15, 2014. On November 1, 2014, a manual trip of the reactor was performed due to degraded cooling water intake conditions caused by severe weather. The unit attained criticality on November 10, 2014 and attained NFP on November 13, 2014. The unit exited the reporting period at NFP. IL RADIOACTIVE RELEASES AND RADIOLOGICAL IMPACT ON MAN Since a number of release points are common to both units, the release data from both units are combined to form this two-unit, Annual Radioactive Effluent Release Report. Appendix Al.1 through A2.4 of this report present the information in accordance with Section 5.6.3 of Appendix A to the Facility Operating Licenses, as specified in the Technical Specifications, Regulatory Guide 1.21, and 10 CFR Part 50, Appendix I. The "MIDAS System" is a computer code that calculates doses due to radionuclides that were released from the CNP. 1 All liquid and gaseous releases were well within Offsite Dose Calculation Manual (ODCM) limits and federal limits. There were no abnormal liquid releases and no abnormal gaseous releases in 2014. The Independent Spent Fuel Storage Installation (ISFSI) impacts are included with Unit 1 and Unit 2 statistics. The ISFSI cask system does not create any radioactive materials or have any radioactive waste treatment systems. Therefore, specific operating procedures for the control of radioactive effluents are not required. Specification 3 .1.1, Multi-Purpose Canister (MPC), provides assurance that there are not radioactive effluents from the ISFSI. Liquid Releases During 2014 there were 71 liquid batch releases performed. The number of liquid batch releases for the four quarters in 2014 was 10, 10, 22, and 29, respectively. Estimated doses (in mrem) to maximally exposed individuals via the liquid release pathways are given in Appendix Al .2 of this report. Gaseous Releases During the first quarter of 2014 there were two batch releases from Gas Decay Tanks (GDT) and 90 Containment Pressure Reliefs (CPR). During the second quarter there were 109 CPR. During the third quarter there were five batch releases from GDTs, one containment purge, and 108 CPR. During the fourth quarter there were two batch releases from GDTs and 104 CPR. The CPR continue to be listed as batch releases as described in Nuclear Regulatory Commission Inspections 50-315/89017 (DRSS); 50-316/89016 (DRSS) for CNP, dated June 13, 1989. Doses continue to be calculated utilizing continuous criteria as allowed by NUREG-0133. There were a total of nine GDT releases, one containment purge, and 411 CPR gaseous batch releases made during 2014. In calculating the dose consequences for continuous and batch gaseous releases during 2014, the meteorological data measured at the time of the release were used. The estimated doses (in mrem) to maximally exposed individuals via the gaseous release pathways are given in Appendix Al.2 of this report. For individuals that are within the site boundary, the occupancy time is sufficiently low to compensate for any increase in the atmospheric diffusion factor above that for the site boundary. Solid Waste Disposition There were 31 shipments of radioactive waste made during 2014. These included shipments made from the site to various radioactive waste processors for ultimate disposal. 2 L III. METEOROLOGICAL IV. Appendices A2.l, A2.2, A2.3, and A2.4 of this report contain the cumulative joint frequency distribution tables of wind speed and wind direction, corresponding to the various atmospheric stability classes for the first, second, third and fourth quarters of 2014. Hourly meteorological data is available for review and/or inspection upon request. OFFSITE DOSE CALCULATION MANUAL {ODCM) CHANGES The ODCM, PMP-6010-0SD-001, was not revised during the report period. V. TOTAL DOSE Section 3.2.5 of the ODCM requires that the dose or dose commitment to a real individual from all uranium fuel cycle sources in Berrien County be limited to no more than 25 mrem to the total body or any organ (except the thyroid, which is limited to no more than 75 mrem) over a period of 12 consecutive months to show conformance with the requirements of 40 CFR Part 190. The maximum cumulative dose to an individual from liquid and gaseous effluents during 2014 was well within the ODCM limits. Measurements using thermoluminescent dosimeters (TLD) at 12 onsite stations indicate that the dose due to direct radiation is consistent with preoperational and current control (background) levels. This is fully evaluated in CNP's 2014 Annual Radiological Environmental Operating Report. Additional TLD dosimetry installed by Radiation Protection department programs monitor dose received by individuals on site as visitors. The ammal dose to the maximum individual will be estimated by first, summing the quarterly total body air dose, the quarterly skin air dose, the quarterly critical organ dose from iodines and particulates (I&P), the quarterly total body dose from liquid effluents, the quarterly critical organ dose from liquid effluents, and the Radiological Environmental Monitoring Program onsite direct radiation TLD data. These quarterly values are summed with the annual Carbon-14 dose and compared to the annual total body limit for conservative reasons. The table that follows here represents the above written description: Dose (mrem) 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr I &P 1.02E-02 1.37E-02 3.27E-02 1.28E-02 Total Body Air 3.10E-04 5.30E-04 1.70E-03 1.70E-04 Skin 5.10E-04 8.60E-04 3.30E-03 2.BOE-04 Liquid TB 2.BOE-03 1.26E-02 3.58E-02 2.62E-02 Liquid Organ 2.BOE-03 1.26E-02 3.58E-02 2.62E-02 C14 (Annual) 2.38E+OO Direct Radiation 0 0 0 0 Total 1.66E-02 4.03E-02 1.09E-01 2.45E+OO Grand Total Dose (Total Body or any other Organ) mrem 2.61E+OO Annual Dose Limit (mrem) 25 Percent of limit 1.04E+01 3 The following data reflects a comparison with 2009 annual dose data (the last year without calculating C-14 dose), 2014 annual dose data, and 2014 annual dose data with C-14 added. This indicates that 2014 was a 'normal' single unit outage year with respect to radioactive effluents and allows for easier comparison. The table is presented as follows: Annual Dose (mrem) % of limit 2009 2.60E-01 1.04 2014 2.32E-01 0.93 2014 with C-14 2.61E+OO 10.4 VI. RADIATION MONITORS INOPERABLE GREATER THAN 30 DAYS There were no release pathways unmonitored for greater than 30 days. VIL NOTEWORTHY CONDITIONS IDENTIFIED IN 2014 There were no new noteworthy conditions identified in 2014. The past year did however validate the successful repairs of the CNP 60-Meter Meteorological Tower as previously discussed in the 2012 and 2013 Annual Radiological Effluent Release Reports. , During the Fourth Quarter of 2012, an intermittent fault was identified on the CNP 60-Meter Meteorological Tower that resulted in a large number of invalid data hours collected. A Condition Report (2012-2305) was initiated and repair work performed. The issue appeared to be a connection to the Delta Temperature instrumentation. Repairs yielded better data collection results in December 2012, however the intermittent fault returned and the system yielded additional invalid data hours during the First and Second Quarters of 2013. Additional repair work was performed when conditions allowed for safe work on the tower, and this resulted in the problem being positively identified as cabling fault grounding out the 10 Meter Delta Temperature instrumentation on the Main 60-Meter Tower. The repairs on the cable and instrumentation were successful at eliminating the intermittent fault and data collection has returned to near 100% valid hours. This issue is now considered corrected and closed. Carbon-14 Supplemental Information for the 2014 Annual Radioactive Effluent Release Report. C-14 has a 5730 year half-life and is a naturally occurring radionuclide produced by cosmic ray interactions in the atmosphere. C-14 is a relatively low energy beta emitter. Nuclear weapons testing in the 1950s and 1960s significantly increased the amount of C-14 in the atmosphere. C-14 is also produced in commercial nuclear reactors, but the amounts produced are much less than those produced naturally, from weapons testing, or coal burning power plants. The inventory of C-14 in Earth's biosphere is about 300 million Curies, of which most is in the oceans. Since the U.S. Nuclear Regulatory Commission (NRC) published Regulatory Guide (RG) 1.21, Revision 1, in 1974, the analytical methods for determining C-14 have improved. 4 Coincidentally, the radioactive effluents from commercial nuclear power plants over the same period have decreased to the point that C-14 is likely to be a principal radionuclide in gaseous effluents. Based on these reasons and a desire to adjust policy to align with international standards, the nuclear industry was required to report, starting in 2010, the quantity and dose impact of C-14 here in the United States. The dose will be reported both with and without C-14 so a comparison to 2009 can be made, keeping in mind the differing standards. The quantity of C-14 released to the environment can be estimated by use of a C-14 source term scaling factor based on power generation (Ref. RG 1.21, Revision 2). A recent study recommends a source te1m scaling factor of approximately 9.0 to 9.8 Curies/GWe-yr for a Westinghouse Pressurized Water Reactor (Ref. EPRI 1021106 "Estimation of Carbon-14 in Nuclear Plant Gaseous Effluents" December 23, 2010). A scaling factor of 9.4 Curies/GWe-yr was assumed for this report. Using this source term scaling factor and actual electrical generation (in MWH) produced during 2014 results in a site total of 19.54 Curies produced. C-14 releases from PWRs occur primarily as a mix of organic carbon (methane) and inorganic carbon ( carbon dioxide). As a general rule, C-14 in the primary coolant is essentially all organic with a large fraction as gas. Any time the primary coolant is exposed to an oxidizing environment ( during shutdown or refueling), a slow transformation from an organic to an inorganic species occurs. Various studies documenting measured C-14 releases from PWRs suggest an average 80% organic fraction with the remainder being carbon dioxide. This equates to 3 .91 Curies released as carbon dioxide which is available for the food pathway through photosynthesis to vegetation. Dose is calculated utilizing the methodology prescribed in RG 1.109, Appendix C with the vegetation dose being the most predominant. A 'p' factor of 0.33 is determined utilizing the 185 hours0.00214 days 0.0514 hours 3.058862e-4 weeks 7.03925e-5 months of batch gaseous releases performed during 2014 and the assumption that 70% of the C-14 released is from gaseous batch releases. A further reduction to the vegetation and leafy vegetable dose is wan-anted due to the limited growing season in Michigan, which was conservatively limited to nine months. The final results indicated a calculated organ dose from C-14 to a child at the site boundary of 1.88 mrem to the bone and a whole body dose of 0.499 mrem, for a combined total C-14 dose of 2.38 mrem. This is less than the dose limit of 15 mrem/unit to any organ prescribed in 10 CFR 50, Appendix I, and the 40 CFR Part 190 limit of25 mrem for total body and for any organ ( -:::_75 mrem for thyroid). VIII. CONCLUSION Based on the information presented in this report, it is concluded that CNP Units 1 and 2 performed their intended design function with no demonstrable adverse effect on the health and safety of the general public. 5 _____ _J Note: This entire document is Revision 1 submitted as "Errata" attached to the 2017 Annual Radioactive Effluent Release Report per Corrective Action 2017-4835. This new revision completely replaces the previously submitted report. This errata was necessitated due to problems identified with equipment utilized for counting tritium samples dating back to 2013. The alterations changed the overall public dose calculated from 2.59 millirems (10.4% of the 40 CFR190 allowable dose limits) to 2.61 millirems (10.4% of the 40CFR190 allowable dose limits). There were no adverse impacts to public health or safety by this minor change to dose. 6 2014 Effluent and Waste Disposal Annual Report SUPPLEMENTAL INFORMATION Facility: Donald C. Cook Nuclear Plant Licensee: Indiana Michigan Power Company 1 REGULATORY LIMITS 1. 1 Noble Gases The air dose in unrestricted areas due to noble gases released in gaseous effluents shall be limited to the following: 1.1.1 During any calendar quarter, to s 5 mrad/unit for gamma radiation ands 10 mrad/unit for beta radiation. 1.1.2 During any calendar year, to s 10 mrad/unit for gamma radiation ands 20 mrad/unit for beta radiation. 1.2 Iodines -Particulates 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 effluents released to unrestricted areas shall be limited to the following: 1.2.1 During any calendar quarter to s 7.5 mrem/unit to any organ. 1.2.2 During any calendar year to s 15 mrem/unit to any organ. 1. 3 Liquid Effluents The dose or dose commitment to an individual from radioactive material in liquid effluents released to unrestricted areas shall be limited: 1.3.1 During any calendar quarter to s 1.5 mrem/unit to the total body and to s 5 mrem/unit to any organ. 1.3.2 During any calendar year to s 3 mrem/unit to the total body and to s 10 mrem/unit to any organ. Al.1-1 ---------__________________ __J L 2014 Effluent and Waste Disposal Annual Report 1. 4 Total Dose The dose or dose commitment to a real individual 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 12 consecutive months. 2 MAXIMUM PERMISSIBLE CONCENTRATIONS 2.1 Gaseous Effluents The dose rate due to radioactive materials released in gaseous effluents from the site shall be limited to the following: 2.1.1 For noble gases: 500 mrem/yr to the total body and 3000 mrem/yr to the skin. 2.1.2 For all radioiodines and for all radioactive materials in particulate form and radionuclides (other than noble gases) with half-lives greater than eight days: 1500 mrem/yr to any organ. The above limits are provided to insure that radioactive material discharged in gaseous effluents will not result in the exposure of an individual in an unrestricted area to annual average concentrations exceeding the limits in 10 CFR Part 20, Appendix B, Table 2, Column 1. 2. 2 Liquid Effluents The concentration of radioactive material released at any time from the site to unrestricted areas shall be limited to 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 2 x 10-4 µCi/ml total activity. Al.1-2 ----------,

2014 Effluent and Waste Disposal Annual Report 3 AVERAGE ENERGY The average energy (E) of the radionuclide mixture in releases of fission and activation gases as defined in Regulatory Guide 1.21, Appendix B, Section A.3 is not applicable because the limits used for gaseous releases are based on calculated dose to members of the public. Release rates are calculated using an isotopic mix from actual samples rather than average energy. 4 MEASUREMENTS and APPROXIMATIONS of TOTAL RADIOACTIVITY 4.1 Fission and Activation Gases Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. 4.2 Iodines Sampled on iodine adsorbing media, and analyzed on an 8192 channel analyzer and HpGe detector. 4.3 Particulates Sampled on a glass filter and analyzed on an 8192 channel .analyzer and HpGe detector. Sr-89 and Sr-90 analyses are performed by offsite vendor. 4.4 Liquid Effluents Sampled and analyzed on an 8192 channel analyzer and HpGe detector. Tritium analysis is performed using liquid scintillation counters. Fe-55, Sr-89 and Sr-90 analyses are performed by an offsite vendor. Ni-63 is also currently being analyzed by the offsite vendor in response to evaluation of the 10 CFR 61 sample results. Al.1-3 2014 Effluent and Waste Disposal Annual Report 5 BATCH RELEASES 5 .1 Liquid 5.1.1 Number of batch releases: 10 releases in -the 1st quarter, 2014 10 releases in -the 2nd quarter, 2014 22 releases in the 3rd quarter, 2014 -29 releases in the 4th quarter, 2014 5 .1. 2 Total time period for batch releases: 53,606 minutes 5.1.3 Maximum time for a batch release: 1,655 minutes 5.1.4 Average time period for batch release: 755 minutes 5.1.5 Minimum time period for a batch release: 164 minutes 5.1.6 Average stream flow during periods of release of effluent into a flowing stream: 7.13E+5 gpm circulating water Al.1-4 2014 Effluent and Waste Disposal Annual Report 5. 2 Gaseous 5.2.1 Number of batch releases: 92 releases in -the l st quarter, 2014 109 releases in the 2nd quarter, 2014 114 releases in the 3rd quarter, 2014 106 releases in the 4th quarter, 2014 5.2.2 Total time period for batch releases: 11,090 minutes 5.2.3 Maximum time for a batch release: 355 minutes 5.2.4 Average time period for batch release: 26 minutes 5.2.5 Minimum time period for a batch release: 5 minutes Al.1-5 2014 Effluent and Waste Disposal Annual Report 6 ABNORMAL RELEASES 6.1 Liquid 6 .1.1 Number of Releases: l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6 .1. 2 Total activity released (Ci): l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.2 Gaseous 6.2.1 Number of Releases: l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 6.2.2 Total activity released (Ci): l st Quarter 2nd Quarter 3rd Quarter 4th Quarter 0 0 0 0 Al.1-6 L 2014 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! 11. FISSION GASES I H3 XE135m KR85 XE131m XE133m XE133 XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci 12. IODINES I131 I132 I133 I Ci I Ci I Ci !Total for Period I Ci 13. PARTICULATES MN54 C060 CS137 I Ci I Ci I Ci !Total for Period I Ci 2.57E+Ol 2.57E+Ol 3.91E-10 3.91E-10

DENOTES SUPPLEMENTAL ISOTOPES 1.85E+Ol 1. 7 5E+Ol 2.33E+Ol 1. 90E-05 1. 85E+Ol 1. 75E+Ol 2.33E+Ol 7.32E-06 7.32E-06 Al.1-7 2014 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-GROUND LEVEL RELEASES BATCH MODE JNuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! Jl. FISSION GASES I H3 AR41 KR85 XE131M XE133M XE133 XE135 I Ci I Ci I Ci I Ci I Ci I Ci I Ci !Total for Period I Ci J 2. IODINES I131 I133 I Ci I Ci JTotal for Period I Ci J3. PARTICULATES I

BR80 I

BR82 I Ci I Ci !Total for Period I Ci 2.37E-02 3.58E-01 3.18E-01 5.87E-02 7.58E-01

DENOTES SUPPLEMENTAL ISOTOPES 2.95E-02 3.60E-01 7.53E-02 4.65E-01 Al.1-8 5.45E-02 4.53E-01 9.81E-01 1.17E-01 8. llE-07 1. 61E+OO 3.20E-02 1.55E-01 2.45E-01 1.46E-03 2.56E-05 4.33E-01 L __ _ 2014 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES Units 1st 2nd 3rd 4th !Est. I Quarter I Quarter I Quarter I Quarter [Total I I I I IError,%1 I A. I FISSION AND I I ACTIVATION GASES I I Ci I 7.35E-Oli 4.35E-01[ 1.55E+OOI 4.0lE-011 11.5 [1. [Total Release [2. !Average release I [rate for period [uCi/secl 9.45E-021 5.54E-02[ 1.95E-011 5.05E-02[ I I I I I I [3. I Percent of [% Gamma I 1.03E-021 1.BOE-021 6.02E-02[ 5.54E-03[ I [applicable limit* I Beta I 6.12E-031 3.35E-031 3.90E-02[ 3.19E-031 I B. I IODINES 11. I Total I-131 I Ci I 3.91E-10[ O.OOE+OO[ O.OOE+OOI 7.32E-061 18.9 12. [Average release I [rate for period [uCi/sec[ 5.03E-11[ O.OOE+OO[ O.OOE+OO[ 9.21E-07[ I I I I I I I 3. I Percent of I % I [applicable limit* I JC. I PARTICULATES [1. I Particulates with[ Ci I !half lives>B days[ I l.43E-10[ O.OOE+OO[ O.OOE+OO[ 2.62E-06[ I I I I I I O.OOE+OO[ O.OOE+OO[ 0.00E+OO[ O.OOE+OOI N/A I I I I I 12. !Average release I [rate for period [uCi/sec[ O.OOE+OO[ O.OOE+OOI O.OOE+OO[ O.OOE+OOI I I I I I I I 3. I Percent of I % I I applicable limit* I I 4. I Gross alpha I I radioactivity ID. I TRITIUM I Ci I I Ci I O.OOE+OO[ O.OOE+OO[ O.OOE+OOI O.OOE+OOI I I I I I [<7.06E-071<6.46E-07[<7.67E-071<8.46E-07[ I I I I I I 2.57E+Ol[ 1.85E+Ol[ l.75E+Oli 2.33E+Ol[ 13.7 [1. [Total Release 12. [Average release I [rate for period [uCi/sec[ 3.31E+OO[ 2.36E+OOI 2.20E+00[ 2.93E+00[ I I I I I I I 3. I Percent of I % I [applicable limit* I I 1.89E-02[ 1.34E-021 1.26E-02[ 1.67E-02[ I I I I I

Applicable limits are expressed in terms of dose. See Appendices Al.2-1 through Al.2-4 Al.1-9 2014 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS CONTINUOUS MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CS137 I Ci I Ci 7.26E-02 2.02E-02 1.25E-02 8.13E-02 BATCH MODE INuclides Released! Unit I 1st Quarter! 2nd Quarter! 3rd Quarter! 4th Quarter! H3 CR51 MN54 FE55 C058 C060 NI63 I *KR85 ZR95 NB95 M099 TC99m AGllOm I *XE131m SB125 CS134 CS137 I *XE135 I131 I *XE133 I *XE133m I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci t Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci I Ci 1.03E+02 4.52E-05 4.41E-05 8.81E-06 2.20E-06 7.93E-07

DENOTES SUPPLEMENTAL ISOTOPES 4.85E+02 3.29E-05 5.70E-05 1.43E-05 8.51E-07 Al.1-10 l.38E+03 1.46E-06 3.98E-05 1.66E-04 1.58E-04 2.79E-05 2.25E-06 1. 7 6E-04 7.80E+02 1.53E-04 7.87E-05 7.0lE-07 4.23E-05 5.0BE-06 4.65E-05 JA. JFISSION AND I !ACTIVATION I !PRODUCTS Jl. JTotal Release J2. !Average diluted I Jconcentration I Jduring period J3. !Percent of 2014 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES BATCH MODE Units 1st 2nd 3rd 4th JEst. I Ci JuCi/ml I I % I Quarter I Quarter I Quarter I Quarter JTotal I I I I JError,%1 J 1.0lE-041 1.05E-04J 3.96E-04J 2.BOE-041 12.4 1.44E-11J 4.79E-12J 6.24E-12J 5.35E-12J I I I I I I I I I Japplicable limit I J 2.74E-04J 1.09E-04J 1.37E-04J 7.86E-05J I I I I I JB. JTRITIUM Jl. !Total Release J2. !Average diluted I Jconcentration I Jduring period J3. I Percent of I Ci JuCi/ml I I % J 1.03E+02J 4.85E+02J 1.38E+03J 7.80E+02J 10.1 1.47E-05J 2.21E-05J 2.lBE-051 l.49E-05J I I I I I I I I I Japplicable limit I J l.47E+OOJ 2.21E+OOJ 2.lBE+OOJ 1.49E+OOJ I I I I I JC. JDISSOLVED AND J !ENTRAINED GASES Jl. !Total Release J2. JAverage diluted I Jconcentration I Jduring period J3. !Percent of I Ci JuCi/ml I I % I --------J --------1 1.76E-04J 4.65E-05J 13.0 I --------J --------J 2.77E-12J 8.88E-13J I I I I I I I I I Japplicable limit I I --------J --------1 1.39E-06J 4.44E-07J I I I I I JD. JGROSS ALPHA J JRADIOACTIVITY J JTOTAL RELEASE JE. JVOLUME OF WASTE J !RELEASED JF. JVOLUME OF J !DILUTION WATER J JUSED DURING I JPERIOD Ci J<5.85E-05J<5.85E-05J<l.29E-04J<l.70E-04J N/A I I I I I I I I I I I Liters I 6.09E+05J 6.09E+05J 1.34E+06J 1.77E+061 I I I I I I Liters I I I I 7.04E+091 I I I 2.19E+10J I I I Al.1-11 6.34E+10J I I I 5.23E+10J I I I 2.00 I I 3.48 l IA. I FISSION AND I I ACTIVATION I I PRODUCTS 11. I Total Release 12. !Average diluted I I concentration I lduring period 13. I Percent of 2014 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES CONTINUOUS MODE Units I Ci luCi/ml I I % 1st 2nd 3rd 4th I Est. I Quarter I Quarter I Quarter I Quarter !Total I I I I IError,%1 I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI N/A O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I I I I !applicable limit I I O.OOE+OOI 0.00E+OOI O.OOE+OOI 0.00E+OOI I I I I I I B. I TRITIUM 11. !Total Release 12. !Average diluted I I concentration I !during period 13. I Percent of I Ci luCi/ml I I % I 7.26E-021 2.02E-021 1.25E-021 8.13E-071 22.2 1.0BE-101 3.77E-111 1.57E-111 4.93E-121 I I I I I I I I I !applicable limit I I 1.0BE-031 3.77E-041 1.57E-041 4.93E-051 I I I I I IC. I DISSOLVED AND I !ENTRAINED GASES 11. !Total Release 12. !Average diluted I I concentration I lduring period I 3. I Percent of I Ci luCi/ml I I % I O.OOE+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI N/A 0.00E+OOI O.OOE+OOI O.OOE+OOI O.OOE+OOI I I I I I I I I I !applicable limit I I O.OOE+OOI O.OOE+OOJ, O.OOE+OOI O.OOE+OOI I I I I I ID. I GROSS ALPHA I I RADIOACTIVITY I ITOTAL RELEASE Ci O.OOE+OOI O.OOE+OOI O.OOE+001<5.08E-051 N/A I I I I I I I I IE. IVOLUME OF WASTE I Liters I 2.29E+061 4.81E+061 3.08E+061 O.OOE+OOI 2.00 I I I RELEASED I I I I I I I I F. I VOLUME OF I !DILUTION WATER I I USED DURING I I PERIOD Liters I I I I 7. 07E+ll I I I I 5. 36E+ll 1 I I I Al. 1-12 7. 95E+ll I I I I l.65E+081 I I I 3.48 L 2014 Effluent and Waste Disposal Annual Report Solid Waste and Irradiated Fuel Shipments Solid Waste Shipped Offsite for Burial or Disposal 1) Type of Waste Unit Estimated amount Estimated Total Error, % a) Spent resins, filters, sludge, m3 3.98E+01 1.00E+OO evaporator bottoms, etc. Curies 2.82E+02 3.75E+OO b) Dry compressible waste, m3 7.39E+02 1.00E+OO contaminated equipment, etc. Curies 2.09E+OO 6.48E+OO c) Irradiated components, control m3 Curies rods, etc. d) Other (contaminated soil) m3 Curies 2) Estimate of Principle Radionuclide Composition a) H-3 9% Co-58 1% Sb-125 1 % Cs-137 / 5 % Mn-54 1% Co-60 12 % Cs-134 3% Fe-55 9.5% Ni-63 58 % Ni-59 0.5 % b) Ni-59 1% Co-58 3% Sb-125 5% Mn-54 2.5% Co-60 39 % Zr/Nb-95 1% Fe-55 35 % Ni-63 12 % Zn-65 1% C-14 0.5% 3) Solid Waste Disposition No. of Shipments Mode of Transportation Destination 8 Truck Memphis, TN 18 Truck Oak Ridge, TN 2 Truck Erwin, TN 3 Truck Kingston, TN 4) Type of Containers used for Shipment: Containers used are excepted packages, Type A, Sea Land, metal boxes, drums, tankers, and hi h inte rit containers HICs . II 5) Solidification Agent: There were no solidifications performed during this report period. Al.1-13 2014 Effluent and Waste Disposal Annual Report Yearly Release Rates GASES Fission and Activation Gases Total Release 3.12E+OO Curies Average Release Rate 9.89E-02 µCi/sec % of Applicable Limits

y4.70E-02 % 13 2.1 lE-02 % Iodines Total I-131 Release 7.32E-06 Curies Average Release Rate 2.30E-07 µCi/sec % of Applicable Limit* 4.57E-01 % Particulates Total Release 0.00 Curies Average Release Rate 0.00 µCi/sec % of Applicable Limit* 0.00% LIQUIDS Fission and Activation Products Total Release 8.82E-04 Curies Average Diluted Concentration 8.lOE-12 µCi/ml % of Applicable Limits

Total Body 2.20E+OO % Organ 6.59E-O 1 %

Applicable limits are expressed in terms of the annual 10 CFR 50, Appendix I, dose limits. Al.1-14 Site Boundary and Nearest Residence Listing The following distances were used in the calculation of the maximum individual doses: Sector Direction Boundary (Meters) Nearest Residence (Meters) A N 651 659 B NNE 617 660 C NE 789 943 D ENE 1497 1747 E E 1274 1716 F ESE 972 1643 G SE 629 1640 H SSE 594 964 J s 594 997 K SSW 629 942 Al.1-15 l Summary of Maximum Individual Doses First Quarter 2014 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) {Toward) LIMIT QTR Liquid Total Body 2.80E-03 Child Receptor 1 1.86E-01 1.5E+O Liquid Liver 2.80E-03 Child Receptor 1 5.60E-02 5.0E+O Noble Gas Air Dose 5.14E-04 Any 651 (N) l.03E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 6.12E-04 Any 789 (NE) 6.12E-03 1.0E+l (Beta-mrad) Age Iodines and Total Body 1.02E-02 Child 659 (N) 1.36E-01 7.5E+O Particulates Al.2-1 Summary of Maximum Individual Doses Second Quarter 2014 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDffi(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 1.26E-02 Child Receptor 1 8.39E-01 1.5E+O Liquid Liver l.26E-02 Child Receptor 1 2.52E-Ol 5.0E+O Noble Gas Air Dose 8.99E-04 Any 651 (N) 1.SOE-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 3.35E-04 Any 651 (N) 3.35E-03 1.0E+l (Beta-mrad) Age Iodines and Total Body 1.37E-02 Child 659 (N) l.83E-01 7.5E+O Particulates Al.2-2 Summary of Maximum Individual Doses ./ Third Quarter 2014 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 3.58E-02 Child Receptor 1 2.39E+OO 1.5E+O Liquid Liver 3.58E-02 Child Receptor 1 7.16E-01 5.0E+O Noble Gas Air Dose 3.0lE-03 Any 651 (N) 6.02E-02 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 3.90E-03 Any 617 (NNE) 3.90E-02 1.0E+l (Beta-mrad) Age Iodines and Total Body 3.27E-02 Child 659 (N) 4.36E-01 7.5E+O Particulates Al.2-3 Summary of Maximum Individual Doses Fourth Quarter 2014 EFFLUENT APPLICABLE ESTIMATED AGE LOCATION %OF LIMIT ORGAN DOSE (mrem) GROUP DISTDIR(M) APPLICABLE (mrem) (Toward) LIMIT QTR Liquid Total Body 2.62E-02 Child Receptor 1 1.75E+OO l.5E+O Liquid GI-LLI 2.62E-02 Child Receptor 1 5.24E-01 5.0E+O Noble Gas Air Dose 2.77E-04 Any 651 (N) 5.54E-03 5.0E+O (Gamma-mrad) Age Noble Gas Air dose 3.19E-04 Any 594 (SSE) 3.19E-03 1.0E+l (Beta-mrad) Age Iodines and Thyroid 1.28E-02 Child 659 (N) l.71E-01 7.5E+O Particulates Al.2-4 2014 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection = LLD (Note: Wells MW-22 through MW-27 are multi-port wells installed in the Fall of 2009, with three sample points placed at different depths. S= Shallow M= Middle D= Deep.) (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-1 2014 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection = LLD (Note: Wells MW-22 through MW-27 are multi-port wells installed in the Fall of 2009, with three sample points placed at different depths. S= Shallow M= Middle D= Deep.) (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) A"l:3-2 2014 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD [.Qa(e,,,, ...*.. ,"1'.§.G~l_,* .. '~[$~~-*-.1rsq:.4****** .. :J'.§G:"~7s ... 1:-0)V:.2">JLivlw.:10.EJ[~f2F.*".:/Jfw~1s .. . 02/17/2014*:~ *> ! 0212412on* '.J ~**cc=~= , ... =.c.-c.c::.~..c ... i 08(,}4/20140:l 09/28/2014 i 10/0.5/2Q14 3) --*"**' .. ~-l O/ i? /2014 1 16!id!ib:f4' l ,.___ ___ ~-~,--------'***--~*-**---* . 10/23/2014 (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-3 2014 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD LDi!te . ..," \vd :.w,J:.~~1 rw:-10 _JJ0J [w~lT .... \ sw.:12*;** ** .:J t,W~13,. , 71 LW-14Ji; *!\I :~w3s: .. -~ ;:<5\¥-1. *-,: ) . 01/13/2014. *: ;: /<LLD' . *<LLD ; f *Ot714/2QI4 .. ** ! 05/30/2014 ., . [0§!02/20i.~(-.i L~LD<,!LA,LD.* .... * .. :'. <J,~D"-.Ji <::LLD* ... *.J ' 06/16/2014. . , '.' . j 07/21/20}4 'l i <LLD ;cS; H <LLD _; L <1,Lffi*'. C ;; i <LLP ,., J f'<LLI) < .L <LLff.;,~u)! ,.~.,"-... -,,> .. ,--,,,.' C,,,,,,... **""***"*" 08/14/2014 .. *<LLD . <LLD <LLD <LLD ** .* Lo2J2s12or~r1 *-* __ .... ~= 09/29/2014 <LLD <LLD 1

OW3 0/2.Q}:l :: *****-**** .. --*-****** .... , .... , .... .'*.C,,., ...... , ....... --, ..... .............. . 10/29/2014 i.*11/21/20141 . ,-*-**"~-~, v,~-~ < ¥ L.:2.:: ....... ,_ -* . .. -****--.. ~----~-.~ (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) Al.3-4 ",*'!

2014 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection= LLD LI>ate<_, lrw.,1 i>::?l[Wfi: ;. JtJY.,3 *~0* ! f w:ss,*, '?lLW:6 ... *irw::7 CC:' J[\V-8'., ,J 'of/1312014 .. : ?' * < ,.~ttrr':\... ,, i, 01/30[201(] *: 02/03/2QJ4 *. ',i; LP'.?IM!JOI4 J . o;ii}12nf . L22.1:1?1ig_143

04/22/2014 '; 10/21/2014 * ,-~-~~*--,~*-, l*< ii\i ,' ;ff'.)~.-=,,;,,_----'-~"""'"" (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.)