Text

2007 Radioactive Effluent Release Report
	ML081330273
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png; (DPR-028)
Issue date:	05/06/2008
From:	Ted Sullivan; Entergy Nuclear Operations
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	BVY 08-029
	Download: ML081330273 (60)
	v • d • e

Entergy Entergy Nuclear Operations, Inc.

Vermont Yankee P.O. Box 0250 320 Governor Hunt Road Vernon, VT 05354 Tel 802 257 7711 May 6, 2008 BVY 08-029 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Vermont Yankee Nuclear Power Station License No. DPR-28 (Docket No. 50-271) 2007 Radioactive Effluent Release Report

Dear Sir or Madam,

In accordance with Vermont Yankee (VY) Technical Specifications (TS) 6.6.D, attached is a copy of the annual 2007 Radioactive Effluent Release Report.

In addition, VY TS 6.7.B requires reporting of changes to the Off-Site Dose Calculation Manual (ODCM). There were no changes made to the ODCM during 2007 as provided in Appendix H of the subject report.

There are no new regulatory commitments being made in this submittal.

Should you have any questions concerning this submittal, please contact Mr. David J.

Mannai at (802) 451-3304.

Sincerely, Site Vice President Vermont Yankee Nuclear Power Station Attachment (1) cc listing (next page)

KU44\\

BVY 08-029 Docket No. 50-271 Page 2 of 2 cC:

Mr. Samuel J. Collins, Regional Administrator U.S. Nuclear Regulatory Commission, Region 1 475 Allendale Road King of Prussia, PA 19406-1415 Mr. James S. Kim, Project Manager U.S. Nuclear Regulatory Commission Mail Stop 08C2A Washington, DC 20555 USNRC Resident Inspector Entergy Nuclear Vermont Yankee, LLC 320 Governor Hunt Road Vernon, Vermont 05354 Mr. David O'Brien, Commissioner VT Department of Public Service 112 State Street - Drawer 20 Montpelier, VT 05620 Vermont Department of Health Division of Radiological Health Attn: Bill Irwin P.O. Box 70 Burlington, VT 05402-0070, Director, Radiation Control Program Commonwealth of Massachusetts Executive Offices of Health and Human Services 174 Portland Street Boston, MA 02114 Massachusetts Department of Public Health Radiation Control Program Schrafft Center 529 Main Street Boston, MA 02129

Docket No. 50-271 BVY 08-029 Vermont Yankee Nuclear Power Station 2007 Radioactive Effluent Release Report

RADIOACTIVE EFFLUENT RELEASE REPORT FOR 2007 INCLUDING ANNUAL RADIOLOGICAL IMPACT ON MAN Entergy Nuclear Northeast Vermont Yankee, LLC Docket No. 50-271 License No. DPR-28 JoAnPelczar, EgAREVA NP Date Prepared by n

Preparation coorinated b Stephen P. Skiows Se ad Chemistry Specialist(

MP Date Reviewed by:

(ý Stephen C.

voy Chemistry Supervisor Date Approved for Distribution:

6A" Jeffery A. H y, Chem. SuPt.

ate

TABLE OF CONTENTS Page

1.0 INTRODUCTION

1 2.0 METEOROLOGICAL DATA.........................

2 3.0 D O SE A SSE SSM E N T..........................................................

..................................................................... 3 3.1 DOSES FROM LIQUID EFFLUENTS..............................................

3 3.2 D OSES FROM N OBLE G ASES.....................................................................................................................

3 3.3 DOSES FROM IODINE-13 1, IODINE-133, TRITIUM, AND RADIONUCLIDES IN PARTICULATE FORM WITH H ALF-LIVES G REATER THAN 8 D AYS......................................................................................................

3 3.4 WHOLE-BODY DOSES IN UNRESTRICTED AREAS FROM DIRECT RADIATION....................................... 4 3.5 DOSES FROM ON-SITE DISPOSAL OF SEPTIC WASTE AND COOLING TOWER SILT..............................

5 3.6 ON-SITE RECREATIONAL ACTIVITIES..............................................................................................

5 R E F E R E N C E S...........................................................................................................................................................

6 APPENDIX A -SUPPLEMENTAL INFORMATION..................................................................................... A-1 APPENDIX B -LIQUID HOLDUP TANKS B-i APPENDIX C -RADIOACTIVE LIQUID EFFLUENT MONITORING IN STR U M E N TA TION.............................................................................................................

C -1 APPENDIX D -RADIOACTIVE GASEOUS EFFLUENT MONITORING IN STR U M EN TA TIO N................................................................................................................

D -1 APPENDIX E -RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM........................ E-1 APPENDIX F - LAND USE CENSUS.............. I.......................................................

F-i APPENDIX G -PROCESS CONTROL PROGRAM....................................................................................... G-1 APPENDIX H -OFF-SITE DOSE CALCULATION MANUAL...........

H-1 APPENDIX I - RADIOACTIVE LIQUID, GASEOUS AND SOLID WASTE TREA TM E N T SY STEM S.................................................................................................

....... I-i APPENDIX J - ON-SITE DISPOSAL OF SEPTIC/SILT/SOIL WASTE....................................................

....... J-1 ii

LIST OF TABLES Number Title Page IA 2007 Gaseous Effluents - Summation of All Releases 7

1B 2007 Gaseous Effluents - Elevated Releases 9

iC 2007 Gaseous Effluents - Ground Level Releases 11 1D Gaseous Effluents - Non-routine Releases 13 2A Liquid Effluents - Summation of All Releases 14 2B Liquid Effluents -Non-routine Releases 15 3

2007 Solid Waste and Irradiated Fuel Shipments 16 4A Maximum Off-Site Doses/Dose Commitments to Members of the Public from 20 Liquid and Gaseous Effluents for 2007 (10CFR50, Appendix I) 4B Maximum Annual Dose Commitments from Direct External Radiation, 21 Plus Liquid and Gaseous Effluents for 2007 (40CFR190) 4C Receptor Locations 22 4D Usage Factors for Gaseous Pathways 23 4E Environmental Parameters for Gaseous Effluents 24 5A to 5H Annual (2007) Summary of Lower Level Joint Frequency Distribution 26-33 6A to 6H Annual (2007) Summary of Upper Level Joint Frequency Distribution 34-41 iii

Ra.diological Effluent Release Report for 2007

[Including Annual Radiological Impact on Man]

Entergy Nuclear Northeast Vermont Yankee, LLC

1.0 INTRODUCTION

Tables 1 through 3 lists the recorded radioactive liquid and-gaseous effluents and solid waste shipments for the year, with data summarized on a quarterly basis for both liquids and gases. Table 4A summarizes the estimated radiological dose commitments from all radioactive liquid and gaseous effluents released during the year 2007 in response to the ALARA objectives of 10CFR50, Appendix I.

Also included in Table 4A is the estimate of direct dose from fixed station sources along the limiting west site boundary line. Tables 5A through 6H report the cumulative joint frequency distributions of wind speed, wind direction, and atmospheric stability for the 12-month period, January to December 2007. Radioactive effluents reported in Tables 1 and 2 were used to determine the resulting doses for 2007.

As required by ODCM Section 10.1, (Reference 1) dose commitments resulting from the release of radioactive materials in liquids and gases during the reporting period were estimated in accordance with the plant's "Off-Site Dose Calculation Manual" (ODCM). These dose estimates were made using a "Method II" analysis as described in the ODCM. A "Method II" analysis incorporates the methodology of Regulatory Guide 1.109 (Reference 2) and actual measured meteorological data recorded concurrently with the quarterly reporting period.

As required by ODCM Section 10.1, this report shall also include an assessment of the radiation doses from radioactive effluents to member(s) of the public due to allowed recreational activities inside the site boundary during the year. During this reporting period, no recreational activity was permitted and, therefore, there is no associated dose assessment as stated in Section 3.6.

Assessment of radiation doses (including direct radiation) to the likely most exposed real member(s) of the public for the calendar year for the purposes of demonstrating conformance with 40CFR190, "Environmental Radiation Protection Standards for Nuclear Power Operations," are also required to be included in this report if the conditions indicated in ODCM 3/4.6, "Total Dose," have been exceeded during the year. Since the conditions indicated in the action statement under ODCM 3/4.6 were not entered into during the year, no additional radiation dose assessments are required. However, Table 4B does provide the combination of doses and dose commitments from plant effluents and direct radiation sources for the limiting member of the public off-site as a demonstration of compliance with the dose standards of 40CFR190.

All calculated dose estimates for members of the public at the site boundary:or beyond for the 2007 annual reporting period are below the dose criteria of 10CFR Part 50, Appendix I, and 40CFR190.

-Appendices B through H indicate the status of reportable items per the requirements of ODCM Section 10.1.

I

I 2.0 METEOROLOGICAL DATA Meteorological data were collected during this reporting period from the site's 300-foot meteorological tower located approximately 2,200 feet northwest of the reactor building, and about 1,400 feet from the plant stack. The 300-foot tower is approximately the same height as the primary plant stack (94 meters) and is designed to meet the requirements of Regulatory Guide 1.23 for meteorological monitoring.

X/Q and D/Q values were derived for all receptor points from the site meteorological record for each quarter using a straight-line airflow model. All dispersion factors have been calculated employing appropriate source configuration considerations, as described in Regulatory Guide 1.111 (Reference 3). A source depletion model as described in "Meteorology and Atomic Energy - 1968" (Reference 4) was used to generate deposition factors, assuming a constant deposition velocity of 0.01 m/sec for all stack (elevated) releases. Changes in terrain elevations in the site environment were also factored into the meteorological models as appropriate.

Table 4C lists the distances from the plant stack to the nearest site boundary, resident, and milk animal in each of the 16 principle compass directions as determined during the 2007 land use census. These locations were used in the calculation of atmospheric dispersion factors. The meteorological model was also executed for each calendar quarter to determine the location of thepredicted maximum ground level air concentration. These locations were included in the assessment of effluent doses along with identified points of interest from the, annual land use census.

2

3.0 DOSE ASSESSMENT 3.1 Doses From Liquid Effluents ODCM 3/4.2.2 limits total body (1.5 mrem per quarter, and 3 mrem per year) and organ doses (5 mrem per quarter, and 10 mrem per year) from liquid effluents to a member of the public to those specified in 10CFR Part 50, Appendix I. By implementing the requirements of 10CFR Palt 50, Appendix I, ODCM 3/4.2.2 assures that the release of radioactive material in liquid effluents will be kept "as low as is reasonably achievable."

For periods in which liquid waste discharges actually occur, the exposure pathways that could exist are fish, direct exposure from river shoreline sedimentation, milk and meat via animal ingestion of the Connecticut River water, and meat, milk and vegetable pathways via crop irrigation with water withdrawn from the Connecticut River. Ingestion pathways of drinking water and aquatic invertebrate do not exist down river of the Vermont Yankee plant.

There were no recorded liquid radwaste discharges during the report period, and therefore, no dose impact.

3:2 Doses From Noble Gases ODCM 3/4.3.2 limits the gamma air dose (5 mrad per quarter, and 10 mrad per year) and beta air (10 mrad per quarter, and 20 mrad per year) dose from noble gases released in gaseous effluents from the site to areas at and beyond the site boundary to those specified in 1 OCFR Part 50, Appendix I. By implementing the requirements of 10CFR Part 50, Appendix I, ODCM 3/4.3.2 assures that the releases of radioactive noble gases in gaseous effluents will be kept "as low as is reasonably achievable."

There were no recorded noble gas releases during the report period, and therefore, no dose impact.

3.3 Doses From Iodine-131, Iodine-133, Tritium, and Radionuclides in Particulate Form With Half-Lives Greater Than 8 Days ODCM 3/4.3.3 limits the organ dose to a member of the public from iodine-131, iodine-133, tritium and radionuclides in particulate form with half-lives greater than 8 days (hereafter called iodines and particulates) in gaseous effluents released from the site to areas at and beyond the site boundary to those specified in 10CFR Part 50, Appendix 1 (7.5 mrem per quarter, and 15 mrem per year). By implementing the requirements of 10CFR Part 50, Appendix I, ODCM 3/4.3.3 assures that the releases of iodines and particulates in gaseous effluents will be kept "as low as is reasonably achievable."

Exposure pathways that could exist as a result of the release of iodines and particulates to the atmosphere include external irradiation from activity deposited onto the ground surface, inhalation, and ingestion of vegetables, meat and milk. Dose estimates were made at the site boundary and nearest resident in each of the sixteen principal compass directions, as well as all milk animal locations within five miles of the plant. The nearest resident and milk animals in each sector were identified by the most recent Annual Land Use Census as required by ODCM 3/4.5.2 (see Table 4C). Conservatively, a vegetabie garden was assumed to exist at each milk animal and nearest resident location. Furthermore, the meat pathway was assumed to exist at each milk cow location since this data category is not part of the annual land use census.

3

Doses were atso calculated at the point of maximum ground level air concentration of radioactive materials in gaseous effluents and included the assumption that the inhalation, vegetable garden, and ground plane exposure pathways exist for an individual with a 100 percent occupancy factor.

It is assumed that milk and meat animals are free to graze on open pasture during the second and third quarters with no supplemental feeding. This assumption is conservative since most of the milk animals inventoried in the site vicinity are fed stored feed throughout the entire year with only limited grazing allowed during the growing season. It has also been assumed that only 50 percent of the iodine deposited from gaseous effluent is in elemental form (12) and is available for uptake (see p. 6, Reference 2). During the non-growing season (first and fourth quarters), the milk animals are assumed to receive only stored feed.

During the growing season (second and third quarters), all animal feed is assumed to be derived from fresh pasture. Usage factors for gaseous effluents are listed by age, group and pathway in Table 4D. Table 4E provides other dose model parameter assumptions used in the dose assessments.

The resultant organ doses were determined after adding the contributions from all pathways at each location. Doses were calculated for the whole body, GI-tract, bone, liver, kidney, thyroid, lung and skin for adults, teenagers, children and infants. The maximum estimated quarterly and annual organ doses to any age group due to iodines and particulates at any of the off-site'receptor locations are reported in Table 4A.

These estimated organ doses are well below the I1OCFR Part 50, Appendix I dose criteria of ODCM 3/4.3.3.

Table 4B provides-an estimation of the total annual dose impact (including contributions from iodine and particulates) associated with the highest exposed member of the public for demonstration of compliance to the dose standard contained in 40CFR Part 190 for the uranium fuel cycle.

3.4 Whole Body Doses in Unrestricted Areas From Direct Radiation The major source of dose in unrestricted areas occurs at the west site boundary, and mainly consisting of direct and skyshine radiation from N-16 decay in the Turbine Building steam cycle during power operations. Because of the orientation of the Turbine Building on the site, and the shielding effects of the adjacent Reactor Building, only the seven westerly sectors (SSW to NNW) see any significant direct radiation.

A correlation method was derived, based directly on site boundary exposure rate and in-plant Main Steamn Line Radiation Monitor measurements, that allows changes in the N-16 carryover in the main steam flow to be directly related to changes in the site boundary dose. This correlation is documented in section 6.11.1 (Equation 6-27a) of the ODCM. This method was used to calculate direct dose at the maximum site boundary location from radiation sources in the steam cycle.

The other, fixed sources of direct and scatter r adiation to th ie boundary are from. low level radioactive waste stored in the North Ware.house, the Low Level "Waste Storage Pad Facility", and old turbine rotors and casings in the Turbine Storage Facility. The annual dose is based on dose rate measurements in these three storage facilities and determined at the same most restrictive site boundary dose location as that for N-16 shine from the Turbine Building.

The estimated direct radiation dose from all major sources combined for the most limiting site boundary location is listed in Table 4A. These site boundary doses assume a 100 percent occupancy factor, and take no credit for the shielding effect of any residential structuire.

4

Table 4B lists the combination of direct radiation and effluent release doses at the limiting nearest residence for the purpose of demonstrating compliance with the dose standards contained in 40CFR Part 190. For direct radiation, no credit for actual occupancy time is taken (i.e., occupancy is equal to 100%).

For 2007, the annual dose limit for the nearest real resident from all station sources (effluents plus fixed radiation sources) was below the 25 mrem total body and organ limit (75 mrem thyroid)of 40 CFR 190.

3.5 Doses From On-Site Disposal of Septic Waste, Cooling Tower Silt and Soil Off-Site Dose Calculation Manual, Appendices B, F and I, require that all applications of septage, cooling tower silt and sand/soil within the approved designated disposal areas be limited to ensure the dose to a maximally exposed individual during the period of Vermont Yankee site control be maintained at less than 1 mrem/year to the whole body and any organ. After the period associated with Vermont Yankee operational control, the dose to the inadvertent intruder is to be maintained at less than 5 mrem/year. The projected dose from on-site disposals of septic waste, cooling tower silt and sand/soil mixes is given in Appendix.J of this report.

The dose limits applicable for the on-site spreading of materials were met for the single disposal (septic waste) in 2007 and in combination with all past spreadings.

3.6 On-Site Recreational Activities During 2007, no access for employees, their families and guests to the boat launching ramp located on-site just north of the intake structure was permitted. As such, no recreational activities were permitted on-site during the report period and, therefore, no associated dose impact to members of the public.

5

REFERENCES

1.

Off-site Dose Calculation Manual (ODCM), Revision 30, Entergy Nuclear Northeast Vermont Yankee, LLC, dated 10/30/02.

2.

Regulatory Guide 1.109, "Calculation of Annual Doses to Man From Routine Release of Reactor Effluents for the Purpose of Evaluating Compliance with 10CFR Part 50, Appendix I", U. S. Nuclear Regulatory Commission, Office of Standards Development, Revision 1, October 1977.

3.

Regulatory Guide 1.111, "Methods for Estimating Atmospheric Transport and Dispersion of Gaseous Effluents in Routine Releases from Light-Water-Cooled Reactors", U.S. Nuclear Regulatory Commission, Office of Standards Development, March 1976.

4.

Meteorology and Atomic Energy, 1968, Section 5-3.2.2, "Cloud Depletion", pg. 204. U. S. Atomic Energy Commission, July 1968.

6

TABLE lA Vermont Yankee Effluent and Waste Disposal Annual Report First and Second Quarters, 2007 Gaseous Effluents -Summation of All Releases Unit Quarter Quarter Est. Total 1

[

2 Error, %

A.

Fission and Activation Gases

1.

Total release Ci ND ND

2.

Average release rate for period

[iCi/sec ND ND

3.

Percent of ODCM limit (1)

ND ND B.

Todines

1.

Total Iodine Ci ND 2.71E-05

+l.80E+01

2.

Average release rate for period pCi/sec ND 3.48E-06

3.

Percent of ODCM limit (2) 3.44E-03 3.53E-02 C.

Particulates

1.

Particulates with T-1/2>8 days Ci ND 4.36E-06

+/-1.80E+01

2.

Average release rate for period pCi/sec ND 5.555E-07

3.

Percent of ODCM limit (3)

(3)

4.

Gross alpha radioactivity Ci ND ND D.

Tritium

1.

Total release Ci 8.26E-01 1.63E+00

+/-1.OOE+01

2.

Average release rate for period lCi/sec 1.05E-01 2.07E-01

3.

Percent of ODCM limit (3)

(3)

ND = Not Detected (1) ODCM Control 3.3.2. for the most limiting of beta air or gamma air dose. Percentage of ODCM limit calculated using Method I dose results.

(2) ODCM Control 3.3.3. for dose from 1-131, 1-133, Tritium, and radionuclides in particulate form. Percentage of ODCM limit calculated using Method I dose results.

(3) Per ODCM Control 3.3.3, dose contribution from Tritium and particulates are included with Iodine above in Part B.

7

TABLE 1A (Continued)

Vermont Yankee Effluent and Waste Disnosal Annual Renort Third and Fourth Quarters, 2007 Gaseous Effluents -Summation of All Releases Unit Quarter Quarter Est. Total 3

4 Error, r%

A.

Fission and Activation Gases

1.

Total release Ci ND ND

2.

Average release rate for period

[tCi/sec ND ND

3.

Percent of ODCM limit (1)

ND ND B.

lodines

1.

Total Iodine Ci 2.81E-05 ND 11.80E+01

2.

Average release rate for period VCi/sec 3.54E-06 ND

3.

Percent of ODCM limit (2) 8.88E-03 9.77E-03 C.

Particulates I.

Particulates with T-1/2>8 days Ci 1.31E-05 4.36E-06

+/-1.80E+01

2.

Average release rate for period

[Ci/sec 1.66E-06 5.55E-07

3.

Percent of ODCM limit (3)

(3)

4.

Gross alpha radioactivity Ci ND ND D.

Tritium

1.

Total release Ci 1.41E+00 2.14E+00

+I.OOE+01

2.

Average release rate for period jiCi/sec 1.27E-01 2.72E-01

3.

Percent of ODCM limit (3)

(3)

(3).

ND (1)

(2)

(3)

= Not Detected ODCM Control 3.3.2. for the most limiting of beta air or gamma air dose. Percentage of ODCM limit calculated using Method I dose results.

ODCM Control 3.3.3. for dose from 1-131, 1-133, Tritium, and radionuclides in particulate form. Percentage of ODCM limit calculated using Method I dose results.

Per ODCM Control 3.3.3, dose contribution from Tritium and particulates are included with Iodine above in Part B.

8

TABLE lB Vermont Yankee Effluent and Waste Disposal Annual Report First and Second Ouarters, 2007 Gaseous Effluents -Elevated Releases Continuous Mode Batch Mode (1)

Quarter Quarter Nuclides Released Units 1

2 1

2 Fission Gases Argon-41 Ci ND ND Krypton-85 Ci ND ND Krypton-85m Ci ND ND Krypton-87 Ci ND ND Krypton-88 Ci ND ND Xenon-133 Ci ND ND Xenon-133m Ci ND ND Xenon-135 Ci ND ND Xenon-135m Ci ND ND Xenon-138 Ci ND ND Unidentified Ci ND ND Total for Period Ci ND ND (1)

(1)

2.

lodines Iodine-131 Ci ND 2.71E-05 Iodine-133 Ci ND ND Iodine-135 Ci ND ND Total for Period Ci ND 2.71E-05 (1)

(1)

3.

Particulates Strontium-89 Ci ND 4.36E-06 Strontium-90, Ci ND ND Cesium-134 Ci ND ND Cesium-137 Ci ND ND Barium-Lanthanum-140 Ci ND ND Manganese-54 Ci ND ND Chromium-51 Ci ND ND Cobalt-58'.

Ci ND ND Cobalt-60 Ci ND ND Cerium-141 Ci ND ND Zinc-65 Ci ND ND Total for Period Ci ND 4.36E-06 (1)

(1)

ND (1)

Not Detected at the plant stack There were no batch mode gaseous releases for this reporting period.

9

TABLE iB (Continued)

Vermont Yankee Effluent and Waste Disposal Annual Report Third and Fourth Ouarters. 2007 Gaseous Effluents -Elevated Releases Continuous Mode Batch Mode (1)

Quarter Quarter Nuclides Released Units 3

4 3

4.

1.

Fission Gases Krypton-85 Ci ND ND Krypton-85m Ci ND ND Krypton-87 Ci ND ND Krypton-88 Ci ND ND Xenon-133 Ci ND ND Xenon-133m Ci ND ND Xenon-135 Ci ND ND Xenon-135m Ci ND ND Xenon-138 Ci ND ND Unidentified Ci ND ND Total for Period Ci ND ND

2.

lodines Iodine-131 Ci ND ND Iodine-133 Ci 2.81E-05 ND Iodine-135 Ci ND ND Total for Period Ci 2.81E-05 ND

3.

Particulates Strontium-89 Ci 1.31E-05 4.36E-06 Strontium-90 Ci ND ND Cesium-134 Ci ND ND Cesium-137 Ci ND ND Barium-Lanthanum-140 Ci ND ND Manganese-54 Ci ND ND Chromium-51 Ci ND ND Cobalt-58 Ci ND ND Cobalt-60,.....

Ci ND ND.

Cerium-141 Ci ND ND Cerium-144 Ci ND ND Zinc-65 Ci ND ND Total for Period Ci 1.31E-05 4.36E-06 ND Not Detected at the Plant Stack (1)

There were no batch mode gaseous releases for this reporting period.

10

TABLE I C Vermont Yankee Effluent and Waste Disposal Annual Report First and Second Quarters, 2007 Gaseous Effluents -Ground Level Releases (2)

Continuous Mode Batch Mode Quarter Quarter Nuclides Released Units 1(1) 2(1) 1(1) 2(1)

1.

Fission Gases Krypton-85 Ci Krypton-85m Ci Krypton-87 Ci Krypton-88 Ci Xenon-133 Ci Xenon-135 Ci Xenon-135m Ci Xenon-138 Ci Unidentified Ci Total for Period Ci

2. Iodines Iodine-131 Ci Iodine-133 Ci Iodine-I 35 Ci Total for Period Ci

3. Particulates Strontium-89 Ci Strontium-90 Ci Cesium-134 Ci Cesium-137 Ci Barium-Lanthanum-140 Ci Manganese-54 Ci Chromium-51 Ci Cobalt-58 Ci Cobalt-60 Ci Cerium-141 Ci Zinc-65 Ci Iron-55 Ci Total for Period Ci (1) There were no ground level gaseous releases for this reporting period.

(2) No Radioactively Contaminated Used Oil was,burned during 2007.

11

TABLE 1C (Continued)

Vermont Yankee Effluent and Waste Disposal Annual Report Third and Fourth Quarters, 2007 Gaseous Effluents - Ground Level Releases(2)

Continuous Mode Batch Mode Quarter Quarter Nuclides Released Units 3(1) 4(l) 3(1) 4(1)

1.

Fission Gases Krypton-85 Ci Krypton-85m Ci Krypton-87 Ci Krypton-88 Ci Xenon-133 Ci Xenon-135 Ci Xenon-135m Ci Xenon-13 8 Ci Unidentified Ci Total for Period Ci

2. lodines Iodine-131 Ci Iodine-133 Ci Iodine-135 Ci Total for Period G

3. Particulates Strontium-89 Ci Strontium-90 Ci Cesium-134 Ci Cesium-137 Ci Barium-Lanthanum-140 Ci Manganese-54 Ci Chromium-51 Ci Cobalt-58 Ci Cobalt-60 Ci Cerium-141 Ci Zinc-6 5 Ci Iron-55 Ci Total for Period Ci (1) There were no ground level gaseous releases forthis reporting period.

(2)

No Radioactively Contaminated Used Oil was burned during 2007 12

TABLE ID Vermont Yankee Effluent and Waste Disposal Annual Report for 2007 Gaseous Effluents -Nonroutine Releases There were no non-routine or accidental gaseous releases during this reporting period.

13

TABLE 2A Vermont Yankee Effluent and Waste Disposal Annual Report for 2007 Liquid Effluents Summation of All Releases There were no liquid releases during this reporting period.

14

TABLE 2B Vermont Yankee Effluent and Waste Disposal Annual Report for 2007 Liquid Effluents -Nonroutine Releases There were no non-routine or accidental liquid releases during this reporting period.

15

TABLE 3 Entergy Nuclear Northeast Vermont Yankee Effluent and Waste Disposal Annual Report First and Second Quarters, 2007 Solid Waste and Irradiated Fuel Shipments A.

SOLID WASTE SHIPPED OFFSITE FOR BURIAL

1. Type of Waste OR DISPOSAL (not irradiated fuel)

F 1ST and 2m*

Shipped from VY for Burial or Disposal Unit Quarters 2007 Est. Total Error, %

m3

a. Spent resins, filter sludge, evaporator bottoms, etc.

Ci None N/A m3 2.14E+02

+/- 2.50E+01

b. Dry compressible waste, contaminated equipment, etc.

i 14E02

+/- 2.50E+01 Ci 1.20E-04

+/- 2.50E+01 m3

c. Irradiated components, control rods, etc.:

Ci None N/A

2. Estimate of Major Nuclide Composition (By Type of Waste)

a. Spent resins, filter sludge, evaporator bottoms, etc.

b. Dry compressible waste, contaminated equipment, etc.

Isotope Percent (1)

Cobalt-60 26.50%

Iron=55 77.33%

Iron-55 51.15%

Cobalt-60 11.41%

Zinc-65 11.67%

Zinc-65 4.28%

Nickel-63 1.42%

Manganese-54 5.14%

Manganese-54 4.68%

Cesium-137 1.60%

Cobalt-58 1.32%

(1)

Note:

Includes only those nuclides that are greater than 1% of the total activity.

Sections A. I and A.2 above do not include the data for the waste shipments from VY to the processors. The data for this waste will be included in the report that covers the year that this waste is shipped from the processor for burial or disposal.

16

TABLE 3 (Continued)

Entergy Nuclear Northeast Vermont Yankee Effluent and Waste Disposal Annual Report First and Second Quarters, 2007 Solid Waste and Irradiated Fuel Shipments

3.

Disposition of solid waste shipments (1st and 2nd Quarters)

Number of Shipments From From Mode of Destination VY Processor Transportation Processor I

Burial Procesor Brialor Disposal 11 X

truck / rail Energy Solutions, Clive UT Duratek-Oak Ridge TN SX truck Studsvik-Erwin, 5

x ruckTN 4

Studsvik-truck Energy Solutions, Clive UT Erwin, TN 14 Studsvik-truck Duratek -Barnwell SC Erwin, TN B. Irradiated Fuel Shipments (Disposition):

None C. Additional Data (1st and 2nd Quarters)

Supplemental Shipments from Shipments from VY Shipments from Information VY to Processors for Burial or Disposal Disposal Class of solid waste AU, B AU, B AU, A, B, C shipped Strong Tight, Type A, Type of containers used Strong Tight, Type A Strong Tight Type B

Type B Solidification agento0 None None None absorbent 17.

TABLE 3 (Continued)

Entergy Nuclear Northeast Vermont Yankee Effluent and Waste Disposal Annual Report Third and Fourth Quarters, 2007 Solid Waste and Irradiated Fuel Shipments OFFSITE FOR BURIAL OR DISPOSAL (not irradiated fuel)

A. SOLID WASTE SHIPPED

1. Type of Waste 3rd nd th 1

Shipped from VY for Burial or Disposal Unit 3 rdrand 4t0 Est. Total Error, %

Im Quarters_2007 T

a. Spent resins, filter sludge, evaporator bottoms, etc.

Ci None N/A m3

b. Dry compressible waste, contaminated equipment, etc.

Ci None N/A m3

c. Irradiated components, control rods, etc.

Ci None N/A 3dand4t Shipped from Processor(s) for Burial or Disposal Unit Quartes 207 Est. Total Error, %

mn3 2.41E+00

a. Spent resins, filter sludge, evaporator bottoms, etc.

Ci 8.41 E+01

+2.50E+01 m3 7.15E+01

b. Dry compressible waste, contaminated equipment, etc.

Ci 1.48E+00

+2.50E+01

c. Irradiated components, control rods, etc.

mi None N/A Ci Nn

/

2. Estimate of Major Nuclide Composition (By Type of Waste)

a. Spent resins, filter sludge,

b. Dry compressible waste,

c. Irradiated components, control rods, evaporator bottoms, etc.

contaminated equipment, etc.

etc.

Isotope J Percent (1)

Isotope Percent (1)

Iron-55 46.32%

Iron-55 77.05%

N/A N/A Cobalt-60 17.20%

Cobalt-60 11.33%

Zinc-65 13.04%

Manganese-54 5.21%

Manganese-54 5.69%

Zinc-65 4.37%

Cesium-137 5.09%

Nickel-63 9.47%

Chromium-51 1.12%

(1) Includes only those nuclides that are greater than 1% of the total activity.

18

TABLE 3 (Continued)

Entergy Nuclear Northeast Vermont Yankee Effluent and Waste Disposal Annual Report Third and Fourth Quarters, 2007 Solid Waste and Irradiated Fuel Shipments

3.

Disposition of Solid Waste Shipments (3 rd and 40 Quarters)

Number of From From Mode of Destination Ship m en ts VY Processor Transportation Processor Burial or Disposal 2

X truck Duratek-Oak Ridge TN 5

X truck Studsvik-Erwin, TN 6

Duratek-Oak truck Energy Solutions, Clive UT Ridge TN 4

Studsvik-truck Energy Solutions, Clive UT Erwin, TN Studsvik-10 truck Duratek -Barnwell SC Erwin, TN B. Irradiated Fuel Shipments (Disposition): None C. Additional Data (3rd and 4th Quarters)

Supplemental Shipments from I

hi Processors for Burial or Information Processors Burial or Disposal Disposal Class of solid waste-A shipped AU None A, B, C Type of containers used Strong Tight None Strong Tight, Type A, Type A Type B Solidification agent or.

None None absorbent N

None Table 3 Review Mark Vandale, RP Specialist Date 19

TABLE 4A Entergy Nuclear Northeast Vermont Yankee Maximum* Off-Site Doses/Dose Commitments to Members of the Public from Liquid and Gaseous Effluents for 2007 (10CFR50, Appendix I)

Dose (mrem)(a)

Sorc1st 2nid 3rd 4th Ye Source f Quarter Quarter Quarter Quarter Year(b)

Total Body Dose Footnotes (c)

(c)

Organ Dose

... t......

Footnotes (c)

(c)

Iodines and I

1.47E-04 5.39E-04 3.22E-04 4.68E-04 1.48E-03 Particulates 813_04 1.48E_03 Footnotes (1)

(2)

(3)

(4)

N'oDiet-,ýases Beta Air (mrad)

I..

Footnotes (d)

(d)

Gamma Air (mrad)

Footnotes (d)

(d)

(d) 4.05 3.94 4.76 4.45 17.20 (e)

"Maximum" means the largest fraction of the corresponding 10CFR50, Appendix I dose design objective.

(a)

The numbered footnotes indicate the age group, organ, and location of the dose receptor, where appropriate.

(b)

The yearly dose is the sum of the doses for each quarter, or a full annual assessment.

(c)

There were no liquid releases in this quarter (d)

There were no noble gas releases in this quarter.

(e)

Maxinum direct dose point located on the west site boundary (1)

CHILD/All Organs/NW /2900 meters from stack (2)

CHILD/THYROID/WNW /2400 meters from stack (3)

CHILD/THRYOID/SW/2600 meters from stack (4)

CHILD/GI-LLI/WSW/2400 meters from stack

"All Organs" include equal impact to Liver, Kidney, Lung, GI-LLI, Thyroid and Whole Body.

20

TABLE 4B Entergy Nuclear Northeast Vermont Yankee Maximum Annual Dose Commitments from Direct External Radiation, Plus Liquid and Gaseous Effluents for 2007(*)

(40CFR1 90)

Pathway Total Body aximum Organ Thyroid (mrem)

(mrem)

Direct External (a) 17.20 17.20 17.20 Liquids (b)

N/A N/A N/A Gases (c) 6.56E-06 6.59E-06 7.12E-06 Annual Total (d) 17.20 17.20 17.20

(*)

The location of the projected maximum individual doses from combined direct radiation plus liquid and gaseous effluents correspond to residences at the southwest boundary relative to the Turbine Hall.

(a)

No occupancy time fraction (assumed 100%) or residential shielding credit is assumed which would reduce real doses below the calculated Values. Expected direct external radiation doses would be reduced by about 54% with a realistic residential shielding credit and occupancy time (0.7 shielding factor from Regulatory Guide 1.109 and annual occupancy time 6760 hours0.0782 days 1.878 hours 0.0112 weeks 0.00257 months ).

(b)

There were no liquid releases in 2007.

(c)

Maximum dose to any organ over all age groups for each release.

(d)

Annual dose limits contained in the EPA Radiation Protection Standards (40CFR190) equal 25 mrem to the total body and any organ, except 75 mrem to the thyroid of a real member of the public.

21

TABLE 4C Receptor Locations Entergy Nuclear Northeast Vermont Yankee Sector

[Site Boundary ()

Nearest Resident 2 Nearest Milk S

riAnimal(

2) Within (Meters)

(Meters) 10 km (Meters)

N 400 1470 NNE 350 1400 5520 (cows)

NE 350 1250 ENE 400 970 E

500 930 ESE 700 2830 SE 750 1970 3600 (cows)

SSE 850 2050 S

385 450 2220 (cows)

SSW 300 450 SW 250 410 8200 (cows)

WSW 250 450 9590 (cows)

W 300 620 820 (cows)

WNW 400 1060 7530*(cows)

NW 550 2600 NNW 550 2600 Receptor locatiofis were conservatively included although these farms have been classified as "out of:.

business" (1)

Vermont Yankee UFSAR Figure 2.2-5.

(2)

The location(s) given are based on information from the Vermont Yankee 2007 Land Use Census and are relative to the plant stack. Gardens are assumed to be present at all resident locations.

22

TABLE 4D Usage Factors for Gaseous Pathways Entergy Nuclear Northeast Vermont Yankee (From Reference 1, Table E-5*)

Age Veg.

Leafy Veg.

Milk Meat Inhalation Group (kg/yr)

(kg/yr)

(l/yr)

(kg/yr)

(m3/yr)

Adult 520 64 310 110 8,000 Teen 630 42 400 65 8,000 Child 520 26 330 41 3,700 Infant 0

0 330 0

1,400 Regulatory Guide 1.109 (Reference 2).

23

TABLE 4E Environmental Parameters for Gaseous Effluents

Entergy Nuclear Northeast Vermont Yankee Vegetables Cow Milk Goat Milk Meat Variable Stored Leafy Pasture Stored Pasture Stored Pasture Stored YV Agricultural Productivity 2

2 0.70 2

0.70 2

(kg/rn2)__

P Soil Surface Density (kg/11 2) 240 240 240 240 240 240 240 240 T

Transport Time to User (hrs) 48 48 48 48 480 480 TB Soil Exposure Time(a)(hrs) 131,400 131,400 131,400 131,400 131,400 131,400 131,400 131,400 TE Crop Exposure Time to Plume 1,440 1,440 720 1,440 720 1,440 720 1,440 (hrs)

TH Holdup After Harvest (hrs) 1,440 24 0

2,160 0

2,160 QF Animals Daily Feed (kg/day) 50 50 6

6 50 50 FP Fraction of Year on Pasture (b)

(b)

FS Fraction Pasture Feed When on 1

1 1

Pasture(c)

Note: Footnotes on following page.

24

TABLE 4E (Continued)

Environmental Parameters for Gaseous Effluents Entergy Nuclear Northeast Vermont Yankee Vegetables Cow Milk Goat Milk Meat Variable Stored Leafy Pasture Stored Pasture Stored Pasture Stored FG Fraction of Stored Vegetables 0.76 Grown in Garden FL Fraction of Leafy Vegetables 1.0 Grown in Garden FI Fraction Elemental Iodine = 0.5 H

Absolute Humidity= 5.6()

From VY ODCM, Table 6.9.1 (Reference 1).

(a)

For Method II dose/dose rate analyses of identified radioactivity releases of less than one year, the soil exposure time for that release may be set at 8,760 hours0.0088 days 0.211 hours 0.00126 weeks 2.8918e-4 months (one year) for all pathways.

(b)

For Method II dose/dose rate analyses performed for releases occurring during the first or fourth calendar quarters, the fraction of time animals are assumed to be on pasture is zero (nongrowing season). For the second and third calendar quarters, the fraction of time on pasture (FP) will be set at 1.0. FP may also be adjusted for specific farm locations if this information is so identified and reported as part of the land use census.

(c)

For Method II analyses; the fraction of pasture feed while on pasture may be set to less than 1.0 for specific farm locations if this information is so identified and reported as part of the land use census.

(d)

For all Method HI analyses, an absolute humidity value equal to 5.6 (gm/m 3) shall be used to reflect conditions in the Northeast (

Reference:

Health Physics Journal, Volume 39 (August), 1980; Pages 318-320, Pergammon Press).

25

TABLE 5A VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS A CLASS FREQUENCY (PERCENT)

=

3.65 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM 0

0 0

0 (1)

.00

.00 (2)

.00

.00 C-3 0

1 3

3 4

1 1

2 1

0 0

1 0

0 0

2 0

19 (1)

.00

.32

.96

.96 1.28

.32

.64

.32

.00

.32

.00

.64

.00 6.09 (2)

.00

.01

.04

.05

.01

.02

.01

.00

.01

.00

.02

.00

.22 4-7 25 1

0 3

11 22 19 24 6

0 3

7 2

1 8

41 0

173 (1) 8.01

.32

.00

.96 3.53 7.05 6.09 7.69 1.92

.00

.96 2.24

.64

.32 2.56 13.14

.00 55.45 (2)

.29

.01

.00

.04

.13

.26

.22

.28

.07

.00

.04

.08

.02

.01

.09

.48

.00 2.02 8-12 28 1

2 0

0 1

1 6

6 0

0 8

2 6

9 33 0

103 (1).1,-8.97

.32

.64

.00

.32

.32 1.92 1.92

.00

.00 2.56

.64 1.92 2.88 10.58

.00 33.01 (2)

.33

.01

.02

.00

.01

.07

.00

.09

.02

.07

.11

.39

.00 1.20 13-18 5

0 0

2 3

7 0

17 (1) 1.60

.00

.64

.96 2.24

.00 5.45 (2)

.06

.00

.02

.04

.08

.00

.20 19-24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS-'"

58 3

5 6

15 24 21 32 13 0

3 16 4

9 20 83 0

312 (1) I 18.59

.96 1.60 1.92 4.81 7.69 6.73 10.26 4.17

.00

.96 5.13 1.28 2.88 6.41 26.60

.00 100.00 (2)

.68

.04

.06

.07

.18

.28

.25

.37

.15

.00

.04

.19

.05

.11

.23

.97

.00 3.65 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND SPEED LESS THAN OR EQUAL TO

.95 MPH) 26

TABLE 5B VERMONT YANKEE JAN 07 -

DEC (37 METEOROLOGICAL DATA 3OINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS B CLASS FREQUENCY (PERCENT)

=

3.91 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM 0

0 0

0 (1)

.00

.00 (2)

.00

.00 C-3 5

0 1

3 4

2 2

1 2

1 0

2 0

0 1

1 0

25 (1) 1.49

.00

.30

.90 1.19

.60

.30

.60

.30

.00

.60

.00

.30

.00 7.46 (2)

.06

.00

.01

.04

.05

.02

.01

.02

.01

.00

.02

.00

.01

.00

.29 4-7 34 10 5

3 15 18 16 17 17 2

2 14 8

3 6

32 0

202 (1) 10.15 2.99 1.49

.90 4.48 5.37 4.78 5.07 5.07

.60

.60 4.18 2.39

.90 1.79 9.55

.00 60.30 (2)

.40

.12

.06

.04

.18

.21

.19

.20

.02

.16

.09

.04

.07

.37

.00 2.36 8-12 24 6

0 0

0 7

9 0

2 5

7 8

8 17 0

93 (1) 7.16 1.79

.00

.00 2.09 2.69

.00

.60 1.49 2.09 2.39 2.39 5.07

.00 27.76 (2)

.28

.07

.00

.08

.11

.00

.02

.06

.08

.09

.20

.00 1.09 13-18 2

0 0

5 5

2 0

14 (1)

.60

.00

.00 1.49 1.49

.60

.00 4.18 (2)

.02

.00

.06

.02

.00

.16 19-24 0

0 0

0 1

0 0

1 (1)

.00

.30

.00

.30 (2)

.00

.01

.00

.01 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS 65 16 6

6 19 20 18 25 28 3

4 21 15 16 21 52 0

335 (1)..19.40 4.78 1.79 1.79 5.67 5.97 5.37 7.46 8.36

.90 1.19 6.27 4.48 4.78 6.27 15.52

.00 100.00 (2)

.76

.19

.07

.22

.23

.21

'.29

.33

.04

.05

.25

.18

.19

.25

.61

.00 3.91 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND SPEED LESS THAN OR EQUAL TO

.95 MPH) 27

TABLE 5C VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS C CLASS FREQUENCY (PERCENT)

=

5.53 WIND DIRECTION FROM SPEED" N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM 0

0 0

0 (1)

.00

.00 (2)

.00

.00 C-3 11 8

4 5

12 3

10 6

1 1

1 12 0

2 5

7 0

88 (1) 2.33 1.69

.85 1.06 2.54

.63 2.11 1.27

.21

.21 2.54

.00

.42 1.06 1.48

.00 18.60 (2)

.13

.09

.05

.06

.14

.04

.12

.07

.01

.14

.00

.02

.06

.08

.00 1.03 4-7 31 17 7

10 20 22 11 29 17 12 8

21 7

5 15 33 0

265 (1) 6.55 3.59 1.48 2.11 4.23 4.65 2.33 6.13 3.59 2.54 1.69 4.44 1.48 1.06 3.17 6.98

.00 56.03 (2)

.36

.20

.08

.12

.23

.26

.13

.34

.20

.14

.09

.25

.08

.06

.18

.39

.00 3.10-8-12 20 7

2 0

0 1

0 6

14 0

1 5

13 11 6

11 0

97 (1) 4.23 1.48

.42

.00

.21

.00 1.27 2.96

.00

.21 1.06 2.75 2.33 1.27 2.33

.00 "20.51 (2)

.23

.08

.02

.00

.01

.00

.07

.16

.00

.01

.06

.15

.13

.07

.13

.00 1.13 13-18 3

0 0

0 1

1 0

0 1

4 5

7 0

22 (1)

.63

.00

.21

.00

.21

.85 1.06 1.48

.00 4.65 (2)

.04

.00

.01

.00

.01

.05

.06

.08

.00

.26 19-24 0

0 0

0 1

0 0

1 (1)

.00

.21

.00

.21 (2)

.00

.01

.00

.01 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00.

.00

.00 ALL SPEEDS 65 32 13 15 32 26 21 41 33 14 10 38 21 22 32 58 0

473 (1) ':13.74.6.77 2.75 3.17 6.77 5.50 4.44 8.67 6.98 2.96 2.11 8.03 4.44 4.65 6.77 12.26

.00 100.00 (2)

.76

.37

.15

.18

.37

.30

.25

.48

.39

.16

.12

.44

.25

.26

.37

.68

.00 5.53 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND SPEED LESS THAN OR EQUAL TO

.95 MPH) 28

TABLE 5D VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS D CLASS FREQUENCY (PERCENT)

=

46.09 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM 0

0 1

0 0

1 0

2 (1)

.00

.03

.00

.03

.00

.05 (2)

.00

.01

.00

.01

.00

.02 C-3 109 62 68 53 52 69 91 107 75 51 48 69 42 47 102 155 0

1200 (1) 2.76 1.57 1.72 1.34 1.32 1.75 2.31 2.71 1.90 1.29 1.22 1.75 1.06 1.19 2.59 3.93

.00 30.42 (2) 1.27

.72

.79

.62

.61

.81 1.06 1.25

.88

.60

.56

.81

.49

.55 1.19 1.81

.00 14.02 4-7 152 70 13 34 35 51 69 213 171 35 42 90 98 123 130 285 0

1611 (1) 3.85 1.77

.33

.86

.89 1.29 1.75 5.40 4.33

.89 1.06 2.28 2.48 3.12 3.30 7.22

.00, 40.84 (2) 1.78

.82

.15

.40

.41

.60

.81 2.49 2.00

.41

.49 1.05 1.14 1.44 1.52 3.33

.00 18.82 8-12 100 19 3

3 1

3 3

35 144 15 15 40 98 226 124 121 0

950 (1) 2.53

.48

.08

.03

.08

.89 3.65

.38

.38 1.01 2.48 5.73 3.14 3.07

.00 24.08 (2) 1."l.17

.22

.04

.01

.04

.41 1.68

.18

.47 1.14 2.64 1.45 1.41

.00 11.10 13-18 13 0

0 0

0 1

6 2

0 0

8 62 60 23 0

175 (1)

.33

.00

.03

.15

.05

.00

.20 1.57 1.52

.58

.00 4.44 (2)

.15

.00

.01

.07

.02

.00

.09

.72

.70

.27

.00 2.04 19-24 0

0 0

1 6

0 0

7 (1)

.00

.03

.15

.00

.18 (2)

.00

.01

.07

.00

.08 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS,..

374 151 85 90 88 123 163 356 396 103 105 199 246 459 422 585 0

3945 (1).

9.48 3.83 2.15 2.28 2.23 3.12 4.13 9.02 10.04 2.61 2.66 5.04 6.24 11.63 10.70 14.83

.00 100.00 (2) 4.37 1.76

.99 1.05 1.03 1.44 1.90 4.16 4.63 1.20 1.23 2.33 2.87 5.36 4.93 6.83

.00 46.09 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND SPEED LESS THAN OR EQUAL TO

.95 MPH) 29

TABLE 5E VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS E CLASS FREQUENCY (PERCENT)

=

25.32 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM 0

1 0

0 0

0 1

0 0

1 0

0 0

3 (1) "

.00

.05

.00

.05

.00

.05

.00

.14 (2)

.00

.01

.00

.01

.00

.01

.00

.04 C-3 41 16 12 9

17 20 42 56 81 112 178 208 218 134 182 139 0

1465 (1) 1.89

.74

.55

.42

.78

.92 1.94 2.58 3.74 5.17 8.21 9.60 10.06 6.18 8.40 6.41

.00 67.60 (2)

.48

.19

.14

.11

.20

.23

.49

.65

.95 1.31 2.08 2.43 2.55 1.57 2.13 1.62

.00 17.12 4-7 26 7

0 1

3 11 27 63 51 19 25 58 58 72 82 91 0

594 (1) 1.20

.32

.00

.05

.14

.51 1.25 2.91 2.35

.88 1.15 2.68 2.68 3.32 3.78 4.20

.00 27.41 (2)

.30

.08

.00

.01

.04

.13

.32

.74

.60

.22

.29

.68

.84

.96 1.06

.00 6.94

8-12 7

0 0

2 19 5

0 2

4 29 16 19 0

103 (1)

.32

.00

.09

.88

.23

.00

.09

.18 1.34

.74

.88

.00 4.75 (2)

.08

.00

.02

.22

.06

.00

.02

.05

.34

.19

.22

.00 1.20 13-18.

0 0

0 2

0 0

0 2

(1)

.00

.09

.00

.09 (2)

.00

.02

.00

.02 19-24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS 74 24 12 10 20 31 70 121 151 136 203 269 280 237 280 249 0

2167 (1) 3.41 1.11

.55

.46

.92 1.43 3.23 5.58 6.97 6.28 9.37 12.41 12.92 10.94 12.92 11.49

.00 100.00 (2)"*

.86

.28

.14

.12

.23

.36

.82 1.41 1.76 1.59 2.37 3.14 3.27 2.77 3.27 2.91

.00 25.32 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND SPEED LESS THAN OR EQUAL TO

.95 MPH) 30

TABLE 5F VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS F CLASS FREQUENCY (PERCENT)

=

12.76 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM:-`

0 0

(1)"

.00

.00 (2)

.00

.00 C-3 14 7

3 3

5 7

9 9

38 85 230 252 166 88 73 31 0

1020 (1) 1.28

.64

.27

.46

.64

.82

.82 3.48 7.78 21.06 23.08 15.20 8.06 6.68 2.84

.00 93.41 (2)

.16

.08

.04

.06

.08

.11

.44

.99 2.69 2.94 1.94 1.03

.85

.36

.00 11.92 4-7 1

0 0

0 2

1 0

2 6

7 9

11 7

7 6

10 0

69 (1)

.09

.00

.18

.09

.00

.18

.55

.64

.82 1.01

.64

.55

.92

.00 6.32 (2)

.01

.00

.02

.01

.00

.02

.07

.08

.11

.13

.08

.07

.12

.00

.81 8-12>

0 0

1 0

0 0

0 1

1 0

0 3

(1)

.00

.09

.00

.09

.00

.27 (2):>ý:.

.00

.00.

.00

.01

.00

.01

.00

.04 13-18 0

0 0

0 (1)

.00

.00 (2)

.00

.00 19-24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 GT 24 0

0 0

0 (1)

.00

.00 (2)

. 00

.00

.00 ALL SPEEDS 15 7

3 3

7 8

9 11 45 92 239 263 173 96 80 41 0

1092 (1)ý'- 1.37

.64

.27

.64

.73

.82 1.01 4.12 8.42 21.89 24.08 15.84 8.79 7.33 3.75

.00 100.00 (2)

.18

.08

.04

.08

.09

.11

.13

.53 1.07 2.79 3.07 2.02 1.12

.93

.48

.00 12.76 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND SPEED LESS THAN OR EQUAL TO

.95 MPH) 31

TABLE 5G VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS G CLASS FREQUENCY (PERCENT)

=

2.75 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM 0

0 0

0 (1)

.00

.00 (2)

.00

.00 C-3 3

1 1

3 3

9 8

22 36 45 37 20 27 9

0 226 (1) 1.28

.43

.43 1.28 1.28 3.83 3.40 9.36 15.32 19.15 15.74 8.51 11.49 3.83

.00 96.17 (2)

.04

.01

.04

.11

.09

.26

.42

.53

.43

.23

.32

.11

.00 2.64 4-7 0

0 0

0 1

0 2

2 2

2 0

9 (1)

.00

.43

.00

.85

.00 3.83 (2)

.00

.01

.00

.02

.00

.11 8-12 0

0 0

0 (1)

.00

.00 (2)

.00

.00 13-18 0

0 0

0 (1)

.00

.00 (2)

.00

.00 19-24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS 3

1 1

3 3

9 8

22 37 45 39 22 29 11 0

235 (1) 1.28

.43

.43 1.28 1.28 3.83 3.40 9.36 15.74 19.15 16.60 9.36 12.34 4.68

.00 100.00 (2)"'-`

.04

.01

.04

.11

.09

.26

.43

.53

.46

.26

.34

.13

.00 2.75 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND SPEED LESS THAN OR EQUAL TO

.95 MPH) 32

TABLE 5H VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS ALL CLASS FREQUENCY (PERCENT)

= 100.00 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM 0

1 1

0 0

0 1

0 0

1 0

0 0

1 0

5 (1)

.00

.01

.00

.01

.00

.01

.00

.01

.00

.06 (2)'-

.00

.01

.00

.01

.00

.01

.00

.01

.00

.06 C-3 183 95 92 77 95 105 158 190 206 272 493 589 463 291 390 344 0

4043 (1) 2.14 1.11 1.07

.90 1.11 1.23 1.85 2.22 2.41 3.18 5.76 6.88 5.41 3.40 4.56 4.02

.00 47.24 (2) 2.14 1.11 1.07

.90 1.11 1.23 1.85 2.22 2.41 3.18 5.76 6.88 5.41 3.40 4.56 4.02

.00 47.24 4-7 269 105 25 51 86 125 142 348 268 75 90 201 182 213 249 494 0

2923 (1) 3.14 1.23

.29

.60 1.00 1.46 1.66 4.07 3.13

.88 1.05 2.35 2.13 2.49 2.91 5.77

.00 34.15 (2) 3.14 1.23

.29

.60 1.00 1.46 1.66 4.07 3.13

.88 1.05 2.35 2.13 2.49 2.91 5.77

.00 34.15 8-12 179 33 7

3 1

5 4

56 193 20 18 60 124 281 164 201 0

1349 (1) 2.09

.39

.08

.04

.01

.06

.05

.65 2.25

.23

.21

.70 1.45 3.28 1.92 2.35

.00 15.76 (2) 2.09

.39

-. 08

.04

.01

.06

.05

.65 2.25

.23

.21

.70 1.45 3.28 1.92 2.35

.00 15.76 13-18,*.

23 0

0 0

0 i

7 3

0 0

9 75 73 39 0

230 (1)

.27

.00

.01

.08

.04

.00

.11

.88

.85

.46

.00 2.69 (2)

.27

.00

.01

.08

.04

.00

.11

.88

.85

.46

.00 2.69 19-24 0

0 0

1 8

0 0

9 (1)

.00

.01

.09

.00

.11 (2)

.00

.01

.09

.00

.11 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS 654 234 125 131 182 235 305 595 674 370 601 851 778 861 884 1079 0

8559 (1) 7.64 2.73 1.46 1.53 2.13 2.75 3.56 6.95 7.87 4.32 7.02 9.94 9.09 10.06 10.33 12.61

.00 100.00 (2) 7.64 2.73 1.46 1.53 2.13 2.75 3.56 6.95 7.87 4.32 7.02 9.94 9.09 10.06 10.33 12.61

.00 100.00 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND SPEED LESS THAN OR EQUAL TO

.95 MPH) 33

TABLE 6A VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT WIND DATA STABILITY CLASS A CLASS FREQUENCY (PERCENT)

=

.41 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM 0

0 0

0 0

0 (1)

.00

.00 (2)

.00

.00 C-3'I 1

1 0

1 1

0 1

4 1

0 0

1 0

11 (1) 2.86 2.86

.00 2.86 2.86

.00 2.86 11.43 2.86

.00

.00 2.86

.00 31.43 (2)

.01

.00

.01

.00

.01

.05

.01

.00

.01

.00

.13 4-7 7

0 0

0 2

0 0

3 0

12 (1) 20.00

.00

.00 5.71

.00

.00 8.57

.00 34.29 (2)

.08

.00

.02

.00

.03

.00

.14 8-12 1

0 0

0 1

2 0

5 (1)..' 2.86

.00

.00 2.86

.00 2.86 5.71

.00 14.29 (2)

.01

.00

.01

.00

.01

.02

.00

.06 13-18 0

0 0

1 0

5 0

6 (M)

.00

.00 2.86

.00 14.29

.00 17.14 (2)...

.00

.01

.00

.06

.00

.07 19-24 0

0 0

1 0

1 (1)

.00

.00 2.86

.00 2.86 (2)

.00

.01

.00

.01 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS 9

1 0

1 1

0 3

4 1

0 0

0 1

1 1

12 0

35 (1) 25.71 2.86

.00 2.86 2.86

.00 8.57 11.43 2.86

.00

.00 2.86 2.86 2.86 34.29

.00 100.00 (2)

.10

.01

.00

.01

.00

.03

.05

.01

.00

.01

.14

.00

.41 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT!OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND SPEED LESS THAN OR EQUAL TO

.95 MPH) 34

TABLE 6B VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT WIND DATA STABILITY CLASS B CLASS FREQUENCY (PERCENT)

=

.86 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM 0

0 0

0 (1)

.00

.00 (2)

.00

.00 C-32" 1

0 0

0 1

I 3

0 0

6 (1) 1.35

.00

.00 1.35 1.35 4.05

.00

.00 8.11 (2)

.01

.00

.01

.03

.00

.07 4-7 0

0 0

0 2

1 0

0 0

7 0

10 (1)

.00

.00 2.70 1.35

.00

.00 9.46

.00 13.51 (2)

.00

.02

.01

.00

.08

.00

.12 8-12 9

0 0

4 1

0 0

0 1

7 0

22, (1) 12.16

.00

.00 5.41 1.35

.00

.00 a.35 9.46

.00 29.73 (2)

.10

.00

.05

.01

.00

.01

.08

.00

.26 13-18

.3 0

0 0

0 1

0 0

0 1

1 1

7 19 0

33 (1) 4.05

.00

.00 1.35

.00

.00 1.35 1.35 1.35 9.46 25.68

.00 44.59 (2)

.03

.00

.01

.00

.01

.08

.22

.00

.38 19-24 0

0 0

3 0

3 (1)

.00

.00 4.05

.00 4.05 (2)

.00

.03

.00

.03 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS.

13 0

0 0

1 1

5 6

1 0

0 1

1 1

8 36 0

74 (1) 17.57

.00

.00 1.35 1.35 6.76 8.11 1.35

.00

.00 1.35 1.35 1.35 10.81 48.65

.00 100.00 (2)

.15

.00

.01

.06

.07

.01

.00

.01

.09

.42

.00

.86 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)ýPERCENT:'OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND SPEED LESS THAN OR EQUAL TO

.95 MPH) 35

TABLE 6C 297.0 FT WIND DATA VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION STABILITY CLASS C CLASS FREQUENCY (PERCENT)

=

3.34 WIND DIRECTION FROM SPEED MPH N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL CALM 0

0 0

.0 0

0 0

0 (1)

.00

.00 (2)

.00

.00 C-3.

0 0

1 0

1 1

0 0

(1)

.00

.35

.00

.35

.00

.35

.00

.00 (2)

.00

.01

.00

.01

.00

.01

.00

.00 4-7 13 6

1 0

0 6

13 4

0 0

(1) 4.51 2.08

.35

.00

.00 2.08 4.51 1.39

.00

.00 (2)

.15

.07

.01

.00

.07

.15

.05

.00

.00 8-12 21 2

0 0

1 5

10 8

8 0

(1) 7.29

.69

.00

.35 1.74 3.47 2.78 2.78

.00 (2)

.24

.02

.00

.01

.06

.12

.09

.00 13-18 19 1

0 0

0 1

0 2

1.

1 (1) 6.60

.35

.00

.35

.00

.69

.35

.35 (2)

.22

.01

.00

.01

.00

.02

.01

.01 19-24 6

0 0

0 (1) 2.08

.00

.00 (2)

.07

.00

.00 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS, 59 9

2 0

2 12 24 15 9

1 (1) 20.49 3.13

.69

.00

.69 4.17 8.33 5.21 3.13

.35 (2)

.68

.10

.02

.00

.02

.14

.28

.17

.10

.01 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM '(WIND SPEED LESS THAN OR EQUAL TO

.95 MPH) 0 0

0 0

.00

.00 0

0 0

1

.00

.35

.00

.01 0

0 0

0 2

20

.00

.69 6.94

.00

.02

.23 2

0 6

4 4

25

.69

.00 2.08 1.39. 1.39 8.68

.02

.00

.07

.05

.29 0

2 6

9 6

38

.00

.69 2.08 3.13 2.08 13.19

.00

.02

.07

.10

.07

.44 0

0 0

1 3

17

.00

.35 1.04 5.90

.00

.01

.03

.20 0

0 0

9

.00

.00 3.13

.00

.10 2

2 12 14 15 110

.69

.69 4.17 4.86 5.21 38.19

.02

.14

.16

.17 1.28 0

0

.00

.00 0

5

.00 1.74

.00

.06 0

65

.00 22.57

.00

.75 0

96

.00 33.33

.00 1.11 0

86

.00 29.86

.00 1.00 0

27

.00 9.38

.00

.31 0

9

.00 3.13

.00

.10 0

288

.00 100.00

.00 3.34 36

TABLE 6D VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT WIND DATA STABILITY CLASS D CLASS FREQUENCY (PERCENT)

=

51.11 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE 5

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM 0

0 0

1 0

0 0

1 (1)

.00

.02

.00

.02 (2)

.00

.01

.00

.01 C-3 61 35 38 29 45 60 77 64 15 12 9

8 9

14 33 79 0

588 (1)Mr-2 1.38

.79

.86

.66 1.02 1.36 1.75 1.45

.34

.27

.20

.18

.20

.32

.75 1.79

.00 1-3.35 (2)'

.71

.41

.44

.34

.52

.70

.89

.74

.17

.14

.10

.09

.10

.16

.38

.92

.00 6.82 4-7*

114 55 37 32 48 84 169 137 106 34 10 10 21 22 46 186 0

i111 (1) 2.59 1.25

.84

.73 1.09 1.91 3.84 3.11 2.41

.77

.23

.48

.50 1.04 4.22

.00 25.22 (2) 1.32

.64

.43

.37

.56

.97 1.96 1.59 1.23

.39

.12

.24

.26

.53 2.16

.00 12.89 8-12ý 148 53 9

12 17 27 48 139 233 48 28 44 73 138 78 217 0

1312 (1) 3.36 1.20

.20

.27

.39

.61 1.09 3.15 5.29 1.09

.64 1.00 1.66 3.13 1.77 4.93

.00 29.78 (2) 1.72

.61

.10

.14

.20

.31

.56 1.61 2.70

.56

.32

.51

.85 1.60

.90 2.52

.00 15.22 13-18 106 23 4

2 3

0 3

21 144 32 8

31 108 242 11 175 0

1013 (1) 2.41

.52

.09

.05

.07

.00

.07

.48 3.27

.73

.18

.70 2.45 5.49 2.52 3.97

.00 22.99 (2) 1.23

.27

.05

.02

.03

.00

.03

.24 1.67

.37

.09

.36 1.25 2.81 1.29 2.03

.00 11.75 19-24'-

59 2

3 3

0 0

1 0

7 6

0 1

23 75 53 82 0

315 (1) 1.34

.05.

.07

.00

.02

.00

.16

.14

.00

.02

.52 1.70 1.20 1.86

.00 7.15 (2)

.68

.02

.03

.00

.01

.00

.08

.07

.00

.01

.27

.87

.61

.95

.00 3.65 GT 24 2

0 0

0 1

5 19 39 0

66 (1)

.05

.00

.02

.11

.43

.89

.00 1.50 (2)

.02

.00

.01

.06

.22

.45

.00

.77 ALL SPEEDS 490 168 9i 78 113 172 298 361 505 132 55 94 235 496 340 778 0

4406 (1) 11.12 3.81 2.07 1.77 2.56 3.90 6.76 8.19 11.46 3.00 1.25 2.13 5.33 11.26 7.72 17.66

.00 100.00 (2) 5.68 1.95 1.06

.90 1.31 2.00 3.46 4.19 5.86 1.53

.64 1.09 2.73 5.75 3.94 9.03

.00 51.11 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND-SPEED LESS THAN OR EQUAL TO

.95 MPH) 37

TABLE 6E VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT WIND DATA STABILITY CLASS E CLASS FREQUENCY (PERCENT)

=

31.82 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM 0

1 1

0 3

1 0

0 1

1 0

0 0

8 (1)

.00

.04

.00

.11

.04

.00

.04

.00

.29 (2)

.00

.01

.00

.03

.01

.00

.01

.00

.09 C-3 112 60 67 48 72 69 101 59 37 17 17 9

9 12 31 84 0

804 (1) ?4.08 2.19 2.44 1.75 2.62 2.52 3.68 2.15 1.35

.62

.33

.44 1.13 3.06

.00 29.31 (2) 1.30

.70

.78"

.56

.84

.80 1.17

.68

.43

.20

.10

.14

.36

.97

.00 9.33 4-7 145 17 16 4

11 23 125 143 104 28 21 15 25 29 43 262 0

l011 (1) 5.29

.62

.58

.15

.40

.84 4.56 5.21 3.79 1.02

.77

.55

.91 1.06 1.57 9.55

.00 36.86 (2) 1.68

.20

.19

.05

.13

.27 1.45 1.66 1.21

.32

.24

.17

.29

.34

.50 3.04

.00 11.73 8-12 75 5

2 2

0 0

14 66 84 32 22 17 65 79 37 180 0

680 (1).. 2.73

.18

.07

.00

.51 2.41 3.06 1.17

.80

.62 2.37 2.88 1.35 6.56

.00 24.79 (2)

.87

.06

.02

.00

.16

.77

.97

.37'

.26

.20

.75

.92

.43 2.09

.00 7.89 13-18 25 2

0 0

0 3

15 10 5

2 16 39 21 69 0

207 (1)

.91

.07

.00

.11

.55

.36

.18

.07

.58 1.42

.77 2.52

.00 7.55 (2)

.29

.02

.00

.03

.17

.12

.06

.02

.19

.45

.24

.80

.00 2.40 19-24 2

0 0

1 0

0 0

0 2

1 0

0 4

5 1

12 0

28 (1)

.07

.00

.04

.00

.07

.04

.00

.15

.18

.04

.44

.00 1.02 (2)

.02

.00

.01

.00

.02

.01

.00

.05

.06

.01

.14

.00

.32 GT 24

.1 0

0 0

0 1

2 1

0 5

(1)

.04

.00

.04

.07

.04

.00

.18 (2)

.01

.00

.01

.02

.01

.00

.06 ALL SPEEDS*

360, 85 86 55 86 93 240 271 243 89 65 43 119 165 135 608 0

2743 (1) 13.12 3.10 3.14 2.01 3.14 3.39 8.75 9.88 8.86 3.24 2.37 1.57 4.34 6.02 4.92 22.17

.00 100.00 (2) 4.18

.99 1.00

.64 1.00 1.08 2.78 3.14 2.82 1.03

.75

.50 1.38 1.91 1.57 7.05

.00 31.82 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND-SPEED LESS THAN OR EQUAL TO

.95 MPH) 38

TABLE 6F VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT WIND DATA STABILITY CLASS F CLASS FREQUENCY (PERCENT)

=

10.81 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM 1

0 0

0 1

1 0

0 0

1 0

0 0

1 0

5 (1)

.11

.00

.11

.00

.11

.00

.11

.00

.54 (2)

.01

.00

.01

.00

.01

.00

.01

.00

.06 C-3 53 34 26 28 27 23 50 44 21 7

7 8

2 8

20 34 0

392 (1) 5.69 3.65 2.79 3.00 2.90 2.47 5.36 4.72 2.25

.75

.86

.21

.86 2.15 3.65

.00 42.06 (2)-**

.'61

.39

.30

.32

.31

.27

.58

.51

.24

.08

.09.

.02

.09

.23

.39

.00 4.55 4-7 55 9

4 2

5 14 53 53 26 15 19 12 19 16 24 79 0

405 (1) 5.90

.97

.43

.21

.54 1.50 5.69 5.69 2.79 1.61 2.04 1.29 2.04 1.72 2.58 8.48

.00 43.45 (2)

.64

.10

.05

.02

.06

.16

.61

.30

.17

.22

.14

.22

.19

.28

.92

.00 4.70 8-12 2

1 0

0 0

0 5

14 13 9

6 9

7 10 9

37 0

122 (1)

.21

.11

.00

.54 1.50 1.39

.97

.64

.97

.75 1.07

.97 3.97

.00 13.09 (2)

.02

.01

.00

.06

.16

.15

.10

.07

.10

.08

.12

.10

.43

.00 1.42 13-18 0

0 0

0 1

0 0

2 3

0 0

2 0

8 (1)

.00

.11

.00

.21

.32

.00

.21

.00

.86 (2)

.00

.01

.00

.02

.03

.00

.02

.00

.09 19-24

. 0 0

0 0

(1).

.00

.00 (2)

'.00

.00

.00 GT 24 0

0 0

.0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS 111 44 30 30 33 38 108 i1 61 31 32 32 31 34 53 153 0

932 (1) 11.91 4.72 3.22 3.22 3.54 4.08 11.59 11.91 6.55 3.33 3.43 3.43 3.33 3.65 5.69 16.42

.00 100.00 (2) 1.29

.51

.35

.38

.44 1.25 1.29

.71

.36

.37

.36

.39

.61 1.77

.00 10.81 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND SPEED LESS THAN OR EQUAL TO

.95 MPH) 39

TABLE 6G VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT WIND DATA STABILITY CLASS G CLASS FREQUENCY (PERCENT)

=

1.65 WIND DIRECTION'FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM 0

0 0

0 (1)

.00

.00 (2)

.00

.00 C-3 0

2 1

0 2

0 3

1 7

0 0

1 2

0 0

19 (1)

.00 1.41

.70

.00 1.41

.00 2.11

.70 4.93

.00

.70 1.41

.00

.00 13.38 (2)

.::.'.00

.02

.01

.00

.02

.00

.03

.01

.08

.00

.01

.02

.00

.22 4-7 1

1 0

0 1

2 11 21 14 6

3 4

2 4

5 4

0 79 (1)

.70

.00

.70 1.41 7.75 14.79 9.86 4.23 2.11 2.82 1.41 2.82 3.52 2.82

.00 55.63 (2)

.01

.00

.01

.02

.13

.24

.16

.07

.03

.05

.02

.05

.06

.05

.00

.92 8-12 1

0 0

0 4

4 2

9 6

1 3

2 1

11 0

44 (1)

.70

.00

.00 2.82 2.82 1.41 6.34 4.23

.70 2.11 1.41

.70 7.75

.00 30.99 (2)

.01

.00

.05

.02

.10

.07

.01

.03

.02

.01

.13

.00

.51 13-18 0

0 0

0 (1)

.00

.00 (2)

.00

.00 19-24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS 2

3 1

0 3

2 18 26 23 15 9

5 5

7 8

'15 0

142 (1) 1.41 2.11

.70

.00 2.11 1.41 12.68 18.31 16.20 10.56 6.34 3.52 3.52 4.93 5.63 10.56

.00 100.00 (2)

.02

.03

.01

.00

.03

.02

.21

.30

.27

.17

.10

.06

.08

.09

.17

.00 1.65 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND SPEED LESS THAN OR EQUAL TO

.95 MPH) 40

TABLE 6H VERMONT YANKEE JAN 07 -

DEC 07 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT.WIND DATA STABILITY CLASS ALL CLASS FREQUENCY (PERCENT)

= 100.00 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM.-

1 1

1 0

4 3

0 0

1 1

0 1

0 0

0 1

0 14 (1)

.01

.00

.05

.03

.00

.01

.00

.01

.00

.01

.00

.16 (2)

.01

.00

.05

.03

.00

.01

.00

.01

.00

.01

.00

.16 C-3 228 132 133 106 149 153 236 173 81 36 33 25 20 35 86 199 0

1825 (1) 2.65 1.53 1.54 1.23 1.73 1.77 2.74 2.01

.94

.42

.38

.29

.23

.41 1.00 2.31

.00 21.17 (2) 2.65 1.53 1.54 1.23 1.73 1.77 2.74 2.01

.94

.42

.38-

.29

.23

.41 1.00 2.31

.00 21.17 4-7 335 88 58 38 65 129 375 359 250 83 53 41 67 71 120 561 0

2693 (1) 3.89 1.02

.67

.44

.75 1.50 4.35 4.16 2.90

.96

.61

.48

.78

.82 1.39 6.51

.00 31.24 (2) 3.89 1.02

.67

.44

.75 1.50 4.35 4.16 2.90

.96

.61

.48

.78

.82 1.39 6.51

.00 31.24 8-12 257 61 11 14 18 32 81 235 341 98 64 71 155 233 131 479 0

2281 (1) 2.98

.71

.13

.16

.21

.37

.94 2.73 3.96 1.14

.74

.82 1.80 2.70 1.52 5.56

.00 26.46 (2) 2.98

.71

.13

.16

.21

.37

.94 2.73 3.96 1.14

.74

,.82 1.80 2.70 1.52 5.56

.00 26.46 13-18 153 26 4

2 3

1 3

27 161 43 13 38 134 292 145 308 0

1353 (1) 1.77

.30

.05

.02

.03

.01

.03

.31 1.87

.50

.15

.44 1.55 3.39 1.68 3.57

.00 15.70 (2) 1.77

.30

.05

.02

.03

.01

.03

.31 1.87

.50

.15

.44 1.55 3.39 1.68 3.57

.00 15.70 19-24 67 2

3 4

0 0

1 0

9 7

0 1

27 81 57 115 0

374 (1) *.;u

.78

.02

.03

.05

.00

.01

.00

.10

.08

.00

.01

.31

.94

.66 1.33

.00 4.34 (2)

.78

.02

.03

.05

.00

.01

.00

.10

.08

.00

.01

.31

.94

.66 1.33

.00 4.34 GT 24 3

0 0

0 1

6 21 49 0

80 (1)

.03

.00

.01

.07

.24

.57

.00

.93 (2)

.03

.00

.01

.07

.24

.57

.00

.93 ALL SPEEDS 1044 310 210 164 239 318 696 794 843 268 163 177 404 718 560 1712 0

8620 (1) 12.11 3.60 2.44 1.90 2.77 3.69 8.07 9.21 9.78 3.11 1.89 2.05 4.69 8.33 6.50 19.86

.00 100.00 (2) 12.11 3.60 2.44 1.90 2.77 3.69 8.07 9.21 9.78 3.11 1.89 2.05 4.69 8.33 6.50 19.86

.00 100.00 (1)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)=PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C= CALM (WIND SPEED LESS THAN OR EQUAL TO

.95 MPH) 41

APPENDIX A EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT Supplemental Information for 2007 Facility: Vermont Yankee Nuclear Power Station Licensee: Enter~v Nuclear Northeast Vermont Yankee IA.

ODCM DOSE AND DOSE RATE LIMITS -

ODCM Controls Dose Limit

a.

Noble Gases 3/4.3.1 Total body dose rate 3/4.3.1 Skin dose rate 3/4.3.2 Gamma air dose 3/4.3.2 Gamma air dose 3/4.3.2 Beta air dose 3/4.3.2 Beta air dose 500 mrem/yr 3000 mrem/yr 5 mrad in a quarter 10 mrad in a year 10 mrad in a quarter 20 mrad in a year

b.

Iodine-131, Iodine-133, Tritium and Radionuclides in Particulate Form With Half-Lives Greater Than 8 Days 3/4.3.1 3/4.3.3 3/4.3.3 Organ dose rate Organ dose Organ dose 1500 mrem/yr 7.5 mrem in a quarter 15 mrem in a year

c.

Liquids 3/4.2.2 Total body dose 3/4.2.2 Total body dose 3/4.2.2 Organ dose 3/4.2.2 Organ dose 1.5 mrem in a quarter 3 mrem in a year 5 mrem in a quarter 10 mrem in a year 2A.

ODCM LIMITS - CONCENTRATION ODCM Control Limit

a.

Noble Gases No ECL Limits

b.

Iodine-13 1, Iodine-133, Tritium and Radionuclides in Particulate Form With Half-Lives Greater Than 8 Days No ECL Limits A-1

c.

Liquids 3/4.2.1 Sun of the fractions of ECL excluding noble gases (10CFR20, Appendix B, Table 2, Column 2):

< 1.OE+01 3/4.2.1 Total noble gas concentration:

< 2E-04 pCi/cc

3.

AVERAGE ENERGY Provided below are the average energy (E) of the radionuclide mixture in releases of fission and activation gases, if applicable.

a.

Average gamma energy: Not Applicable

b.

Average beta energy: Not Applicable;

4.

MEASUREMENTS AND APPROXIMATIONS OF TOTAL RADIOACTIVITY Provided below are the methods used to measure or approximate the total radioactivity in effluents and the methods used to determine radionuclide composition.

a.

Fission and Activation Gases Continuous stack monitors monitor the gross Noble Gas radioactivity released from the plant stack. Because release rates are normally below the detection limit of these, monitors, periodic grab samples are taken and analyzed for the gaseous isotopes present. These are used to calculate the individual isotopic releases indicated in Table lB and the totals of Table IA. The error involved in these steps may be approximately +/-23 percent.

b.

Jodines Continuous isokinetic samples are drawn from the plant stack through a particulate filter and charcoal cartridge. The filters and cartridges are normally removed weekly and are analyzed for Iodine-131, 132, 133, 134, and 135. The error involved in these steps may be approximately +/-18 percent.

A-2

c.

Particulates The particulate filters described in b. above are also counted for particulate radioactivity. The error involved in this sample is also approximately +/-18 percent.

d.

Tritium ODCM Table 4.3.1 requires as a minimum that grab samples from the plant stack be taken monthly'and analyzed for tritium. The stack tritium collection has been upgraded with silica gel columns and continuous sampling of stack effluents. The error involved in this sample is approximately +/-10 percent.

e.

Waste Oil Prior to issuing the permit to bum a drum of radioactively contaminated waste oil, one liter of the oil is analyzed by gamma spectroscopy to determine concentrations of radionuclides that meet or exceed the LLD for all of the liquid phase radionuclides listed in ODCM Table 4.2.1.

Monthly, samples from drums, that were issued bum permits are sent to the contracted laboratory for compositing and analysis. The lab analyzes for tritium, alpha, Fe-55, Sr-89, and Sr-90 on the composite sample.

The error involved in this sample is approximately +/-15 percent.

f.

Liquid Effluents If radioactive liquid effluents are to be released from the facility, they are continuously monitored. Measurements are also required on a representative sample of each batch of radioactive liquid effluents released. For each batch, station records are retained of the total activity (mCi) released, concentration

(ýtCi/ml) of gross radioactivity, volume (liters), and approximate total quantity of Water (liters) used to dilute the liquid effluent prior to release to the' Connecticut River.

Each batch of radioactive liquid effluents to be released is analyzed for gross gamma and gamma isotopic radioactivity. A monthly proportional composite sample, comprising an aliquot of each batch released during a month, is analyzed for tritium and gross alpha radioactivity. A quarterly proportional composite sample, comprising an aliquot of each batch released during a quarter, is analyzed for Sr-89, Sr-90, and Fe-55, A-3

5.

BATCH RELEASES

a.

Liquid There were no routine liquid batch releases during the reporting period.

b.

Gaseous There were no routine gaseous batch releases during the reporting period.

6.

ABNORMAL RELEASES

a.

Liquid There were no non-routine liquid releases during the reporting period.

b.

Gaseous There were no non-routine gaseous releases (measured) during the reporting period.

A-4

APPENDIX B LIQUID HOLDUP. TANKS Requirement

Response

Technical Specification 3.8.D. 1 limits the quantity of radioactive material contained in any outside tank. With the quantity ofradioactive. material in any outside tank exceeding the limits of Technical Specification 3.8.D.1, a description of the events leading to this condition is required in the next annual Radioactive Effluent Release, Report per ODCM Section 10.1.

The limits of Technical Specification 3.8.D. 1 were not exceeded during this reporting period.

B-1

APPENDIX C RADIOACTIVE LIQUID EFFLUENT MONITORING INSTRUMENTATION Requirement:

Response

Radioactive liquid effluent monitoring instrumentation channels are required to be operable in accordance with ODCM Table 3.1.1. If an inoperable radioactive liquid effluent monitoring instrument is not returned to operable status prior to a release pursuant to Note 4 of Table 3.1.1, an explanation in the next annual Radioactive Effluent Release Report of the reason(s) for delay in correcting the inoperability are required per ODCM Section 10.1.

Since the requirements of ODCM Table 3.1.1 governing the operability of radioactive liquid effluent monitoring instrumentation were met for this reporting period, no response is required.

C-1

APPENDIX D RADIOACTIVE GASEOUS EFFLUENT MONITORING INSTRUMENTATION Requirement:

Response

Radioactive gaseous effluent monitoring instrumentation channels are required to be operable in accordance with ODCM Table 3.1.2. If inoperable gaseous effluent monitoring instrumentation is not returned to operable status within 30 days pursuant to Note 5 of Table 3.1.2, an explanation in the next annual Radioactive Effluent Release Report ofthe reason(s) for the delay in correcting the inoperability is required per ODCM Section 10.1.

Since the requirements of ODCM Table 3.1.2 governing the operability of radioactive gaseous effluent monitoring instrumentation were met for this reporting period, no response is required.

D-1

Requirement:

Response

APPENDIX E RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM The radiological environmental monitoring program is conducted in accordance with ODCM Control 3/4.5.1. With milk samples no longer available from one or more of the sample locations required by ODCM Table 3.5.1, ODCM 10.1 requires the following to be included in the next annual Radioactive Effluent Release Report: (1) identify the cause(s).0f the sample(s) no longer being available, (2) identify the new location(s) for obtaining available replacement samples and (3) include revised ODCM figure(s) and table(s). reflecting the new location(s).

No changes were needed in the milk sampling locations as specified in ODCM Table 3.5.1 and implemented in ODCM Table 7.1 during the reporting year.

E-I

APPENDIX F I LAND USE CENSUS Requirement:

Response

A land, use census is conducted in accordance with ODCM Control 3/4.5.2.

With a land use census identifying a location(s) that yields at least a 20 percent greater dose or dose commitment than the values currently being calculated pursuant to ODCM Control 4.3.3, the new location(s) must be identified in the next Annual Radioactive Effluent Release Report.

The Land Use Census was completed during the third quarter of 2007. No significant land use changes from the previous year's census were identified.

As a result, no locations were identified which yielded a 20 percent greater dose or dose commitment than the values currently being calculated pursuant to ODCM Control 4.3.3.

F-1

APPENDIX G PROCESS CONTROL PROGRAM Requirement:

Response

ODCM Section 10.1 requires that licensee initiated changes to the Process Control Program (PCP) be submitted to the Commission in the annual Radioactive Effluent Release Report for the period in which the change(s) was.

made.

There were no changes made to the Process Control Program during this reporting period.

G-1

ft C, V APPENDIX H OFF-SITE DOSE CALCULATION MANUAL Requirement:

Response

Technical Specification 6.7.B. 1 requires that licensee initiated changes to the Off-Site Dose Calculation Manual (ODCM) be submitted to the Commission in the annual Radioactive Effluent Release Report for the period in which-the change(s) was made effective.

There were no changes made to the ODCM during this reporting period.

H-I

r~

APPENDIX I RADIOACTIVE LIQUID, GASEOUS, AND SOLID WASTE TREATMENT SYSTEMS Requirement:

Response

ODCM Section 10.4 requires that licensee initiated major changes to the radioactive waste systems (liquid, gaseous, and solid) be reported to the Commission in the annual Radioactive Effluent Release Report for the Period in which the evaluation was reviewed by the Plant Operation Review Committee.

There were no licensee-initiated major changes to the radioactive waste systems during this reporting period.

1-1

APPENDIX J ON-SITE DISPOSAL OF SEPTIC/SILT/SOIL WASTE Requirement:

Response

Off-Site Dose Calculation Manual, Appendices B, F and I require that the dose impact due to on-site disposal of septic waste, cooling tower silt and sand/soil type materials during the reporting year and from' previous years be reported to the Nuclear Regulatory Commission in the annual Radioactive Effluent Report if disposals occur during the reporting year. Entergy Nuclear Northeast Vermont Yankee will report in the Annual Radioactive Effluent Release Report a list of the radionuclides present and the total radioactivity associated with the on-site disposal activities on the Vermont Yankee site.

There was one on-site disposal of septic waste during the reporting year. The total volume of the, septic waste spread-in 2007 was 1 1,000 gallons. The total activity spread on the 1.9 acres (southern) on-site disposal field from 2007 spreading and from previous years was as follows:

Activity from 2007, plus Activity Activity Spread in 2007

'from.All Past Disposals Decayed to 10/10/2007 cci)

(Ci)

Nuclide Mn-54 Co-60 Zn-65 Cs-134 Cs-137 Ce-141 O.OOE+O0 1.85E-09 0.OOE+00 0.OOE+00 0.00E+00 0.OOE+00 4.22E-08 1.84E-05 5.13E-08 9.88E-09 6.88E-05 1.06E-28 The maximum organ (including whole body) incremental dose from material spread in 2007 was estimated to be 6.97E-07 mrem/yr. The maximum organ dose from all past spreading operations, including the material spread in 2007, totaled 1.04E-01 mrem/yr. These calculated Values are within the 1 mrem/yr limit applied during the period of operational control of the site. The projected hypothetical dose for the period followingthe loss of operational control of the site area due to all spreading operations to-date is 3.79E-01 mrem/yr Versus a 5 mrem/yr dose limit.

J-_1

BVY 08-029, 2007 Radioactive Effluent Release Report

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BVY 08-029, 2007 Radioactive Effluent Release Report

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