Text

Radioactive Effluent Release Report
	ML101390210
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	05/12/2010
From:	Michael Colomb; Entergy Nuclear Operations
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	BVY 10-030
	Download: ML101390210 (63)
	v • d • e

_Entergy Nuclear Operations, Inc.

Vermont Yankee 320 Governor Hunt Road Vernon, VT 05354 Tel 802 257 7711 Michael J. Colomb Site Vice President BVY 10-030 May 12, 2010 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555

SUBJECT:

2009 Radioactive Effluent Release Report Vermont Yankee Nuclear Power Station Docket No. 50-271 License No. DPR-28

Dear Sir or Madam,

In accordance with Vermont Yankee (VY) Technical Specifications (TS) 6.6.D, attached is a copy of the annual 2009 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 2009.

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

Should you have any questions concerning this submittal, please contact Mr. James M.

DeVincentis (802) 451-3150.

Sincerely,

[MJC/JMD] : Radioactive Effluent Release Report for 2009 cc listing (next page)

BVY 10-030 Docket No. 50-271 Page 2 of 2 cc:

Mr. Samuel J. Collins, Region 1 Administrator U.S. Nuclear Regulatory Commission 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 Mr. James Noggle, Sr. Health Physicist U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406-1415 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 Massachusetts Department of Public Health Radiation Control Program Attn: Bob Walker, Director Schrafft Center - Suite 1 M21 529 Main Street Charlestown, MA 02129 Dennis P. O'Dowd, Administrator Radiological Health Section 29 Hazen Drive Concord, NH 03301-6504

Docket No. 50-271 BVY 10-030 Vermont Yankee Nuclear Power Station 2009 Radioactive Effluent Release Report

RADIOACTIVE EFFLUENT RELEASE REPORT FOR 2009 INCLUDING ANNUAL RADIOLOGICAL IMPACT ON MAN Entergy Nuclear Vermont Yankee, LLC Docket No. 50-271 License No. DPR-28 Prepared by:

~*

4 fti0 Edward R. Cumming, CHP, Advisory kei AREVn NP Date Preparation coordin ated by:

ate Stephen P Kkibni,tvs*9y enior Envi*

al Specialist 5P)

'ate Reviewed by:

Ls~~4 dA/

Stephen C. Mec y, Chemistry Supervisor

[Date Approved for Distribution:

) A ((/*

/

Jeffery A/Hardy, Chemistry Manager Date

TABLE OF CONTENTS Page 1.0 IN T R O D U C T IO N............................................................................................................................................

2.0 M ETEO R O LO G ICA L D A TA..............................................................................................

......................... 2 3.0 D O SE A SSE SSM EN T..............................

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

3.

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

4 3.3 DOSES FROM IODINE-131, IODINE= 13 3, TRITIUM, AND RADIONUCLIDES IN PARTICULATE FORM WITH H ALF-LIVES G REATER THAN 8 DAYS.....................................................

....................................................... 4 3.4 WHOLE-BODY DOSES IN UNRESTRICTED AREAS FROM DIRECT RADIATION...... I......... "................

...... 5 3.5 DOSES FROM ON-SITE DISPOSAL OF SEPTIC WASTE AND COOLING TOWER SILT...................

5 3.6 ON-SITE RECREATIONAL A CTIVITIES....................................................................................

........................6 R EFER EN C E S..............................................................

7 APPENDIX A - SUPPLEMENTAL INFORMATION

.. A-1 APPENDIX B - LIQUID HOLDUP TANKS....................................................

B-I APPENDIX C - RADIOACTIVE LIQUID EFFLUENT MONITORING IN STRUM EN TATION............................................

............................. C-1

.APPENDIX D - RADIOACTIVE GASEOUS EFFLUENT MONITORING INSTRUMENTATION..................

D-1 IN S T R U M N T A T IO N...............................................................

.i........................................

APPENDIX E - RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM...................................... E-1 A PPEN D IX F - LAN D U SE CEN SU S.....................................................

................................ F-i APPENDIX G - PROCESS CONTROL PROGRAM.........................................

G-i APPENDIX H - OFF-SITE DOSE CALCULATION MANUAL.................................

H-1 APPENDIX I - RADIOACTIVE LIQUID, GASEOUS AND SOLID WASTE TREATMENT SYSTEMS................................................

I-1 APPENDIX 1 - ON-SITE DISPOSAL OF SEPTIC/SILT/SOIL WASTE......................................

J-1

LIST OF TABLES Number Title Page IA Gaseous Effluents - Summation of All Releases 8

1B Gaseous Effluents - Elevated Releases 10 1C Gaseous Effluents - Ground Level Releases 12 ID Gaseous Effluents - Non-routine Releases 14 2A Liquid Effluents - Summation of All Releases 15 2B Liquid Effluents - Routine Releases 17 3

Solid Waste and Irradiated Fuel Shipments 19 4A Maximum Off-Site Doses/Dose Commitments to Members of the Public from 21.

Liquid and Gaseous Effluents for 2009 (10CFR50, Appendix I) 4B Maximum Annual Dose Commitments from Direct External Radiation, 22 Plus Liquid and Gaseous Effluents for 2009 (40CFR190) 4C Receptor Locations 23 4D Usage Factors for Environmental Pathways 24 4E Environmental Parameters for Gaseous Effluents 25 4F Environmental Parameters for Liquid Releases (Tritium) Via Groundwater 27 5A to 5H Annual (2009) Summary of Lower Level Joint Frequency Distribution 28-35 6A to 6H Annual (2009) Summary of Upper Level Joint Frequency Distribution 36-43 iii

Radiological Effluent Release Report for 2009

[Including Annual Radiological Impact on Man]

Entergy Nuclear 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 2009 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 2009.

Radioactive effluents reported in Tables 1 and 2 were used to determine the dose to the maximum exposed individual for 2009.

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 3/4.4, "Total Dose," have been exceeded during the year. Since the conditions indicated in the action statement under ODCM 3/4.4 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 2009 annual reporting period are below the dose criteria of 10CFR Part 50, Appendix I, and 40CFR1 90.

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

1

2.0 METEOROLOGICAL DATA Meteorological data were collected in 2009 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. In mid-2009, the tower was moved to a location approximately 200 feet northwest of the original location.

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 rn/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 2009 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 the predicted 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 doses (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 Part 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."

There were no recorded routine liquid radioactive waste discharges during the report period.

However, an abnormal release to the Connecticut River is postulated due to the discovery of a leak in an underground pipe tunnel that runs between the Advanced Offgas (AOG) system building and other plant buildings which allowed accumulated piping system leakage to enter the subsurface groundwater adjacent to the plant structures. The existence of the leak was first recognized in January, 2010, when a river shoreline Protected Area Boundary monitoring well sample was reported to have detectable tritium. The addition of other monitoring wells and subsequent analysis defined the extent of the affected groundwater plume moving toward the river and help locate the source of the leak which was stopped in February, 2010.

Based the Protected Area Boundary monitoring well data, the last recorded sample from the affected well that showed no indication of tritium being present was taken on 8/19/2009. For the purpose of estimating the maximum possible release conditions, it is assumed that immediately after the 8/19/2009 clean sample, the groundwater at the Protected Area boundary well locations (and river shoreline) reached and maintained the same concentration as when first detected. Using a conservative estimate of groundwater flow through the affected area toward the river of 50 gpm, an estimate of the total potential tritium released from the site during the third and fourth quarters of 2009 were generated and reported in Table 2A.

For the third and fourth quarters of 2009 in which liquid waste are postulated to have been released from the site to the Connecticut River, the dose impacts to the maximum exposed individual (MEI) assumed the following exposure pathways: (1) ingestion of fish (taken from Vernon Pond), (2) ingestion of irrigated vegetable and fresh leafy produce irrigated by water taken from the river below Vernon Dam, (3) ingestion of milk and meat from animals that were fed irrigated crops and drinking water taken from the river below Vernon Dam, and (4) potable water for a hypothetical individual drawing drinking water fed by the river below Vernon Dam. Environmental mixing of liquid effluents in the river is based on the recorded low monthly average river flow of 3,796 cfs (September, 2009). For Vernon Pond (river area adjacent to the plant property), the near shore mixing zone associated with the fish ingestion pathway is conservatively taken as 1% of the minimum recorded monthly river flow for dilution. All other exposure pathways for the consumption of potable water and food products grown with irrigated water occur below Vernon Dam and assume the September, 2009, low flow value for environmental mixing. The dose models are taken from US NRC Regulatory Guide 1.109, Revision 1, and use environmental parameters for exposure pathways listed in Tables 4D and 4F.

The maximum estimated quarterly and annual whole body and organ doses to any age group from liquid releases are reported in Table 4A. These estimated doses are well below the 10CFR Part 50, Appendix I dose criteria of ODCM 3/4.2.2. Table 4B provides an estimation of the total annual dose impact (including contributions from liquids) 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

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 10CFR 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-i133, 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-13 1, 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 1 OCFR 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 vegetable 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. Doses were also 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 10CFR Part 50, Appendix I dose criteria of ODCM 3/4.3.3.

4

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 dose in unrestricted areas occurs at the west site boundary, and mainly consists 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 Steam 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 radiation to the site boundary are from the Independent Spent Fuel Storage Installation (ISFSI), the low level radioactive materials stored in the North Warehouse, 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 storage facilities and is determined to occur 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 structure.

Table 4B lists the combination of direct radiation doses at the limiting nearest residence and the maximum offsite dose from gaseous and liquid effluents 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 2009, 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.

5

The dose limits applicable for the on-site spreading of materials were met for the two disposals (sand/soil and cooling tower silt) in 2009 and in combination with all past spreadings.

3.6 On-Site Recreational Activities During 2009, 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.

6

REFERENCES

1.

Off-site Dose Calculation Manual (ODCM), Revision 32, Entergy Nuclear Vermont Yankee, LLC, dated 06/24/08.

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.

7

TABLE 1A Entergy Nuclear Vermont Yankee Effluent and Waste Disposal Annual Report First and Second Ouarters. 2009 A

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 ItCi/sec ND ND

3.

Percent of ODCM limit (1),

ND ND B:

Iodines

1.

Total Iodine Ci 7.93E-06 ND

+/-1.80E+01

2.

Average release rate for period tCi/sec 9.98E-7 ND

3.

Percent of ODCM limit (2) 1.27E-02 3.63E-03 C.

Particulates

1.

Particulates with T-1/2>8 days Cil ND ND

+1.80E+01

2.

Average release rate for period ptCi/sec ND ND

3.

Percent of ODCM limit (3)

(3)

4.

Gross alpha radioactivity Ci ND ND D.

Tritium

1.

Total release Ci 2.83E-01 5.69E-01

+/-1.80E+01

2.

Average release rate for period gCi/sec 3.56E-02 7,. 16E-02

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*ofODCM 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.

8

TABLE 1A (Continued)

Entergy Nuclear Vermont Yankee Effluent and Waste Disposal Annual Report Third and Fourth Quarters, 2009 Gaseous Effluents -Summation of All Releases unit Quarter Quarter Est. Total 3

4 Error, %

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 6.40E-05 9.71E-05

+/-1.80E+01

2.

Average release rate for period jtCi/sec 8.05E-06 1.22E-05

3.

Percent of ODCM limit (2) 2.60E-02 4.59E-02 C.

Particulates

1.

Particulates with T-1/2>8 days Cil ND 2.05E-05

+/-1.80E+01

2.

Average release rate for period' tiCi/sec ND 2.57E-06

3.

Percent of ODCM limit (3)

(3)

4.

Gross alpha radioactivity Ci ND ND D.

Tritium

1.

Total release Ci 5.42E-01 3.55E-01

+l.80E+01

2.

Average release rate for period jiCi/sec 6.82E-02 4.46E-02

3.

Percent of ODCM limit (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 1-1311, 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.

9

TABLE HB Entergy Nuclear Vermont Yankee Effluent and Waste Disposal Annual Report First and Second Quarters, 2009 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 7.93E-06 ND Iodine-133 Ci ND ND Iodine-135 Ci ND ND Total for Period Ci 7.93E-06 ND (1)

.(1)

3.

Particulates Strontium-89 Ci ND ND 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 ND (1)

(1)

"kT P4I)

(1) rNot Detectea at me plant stack There were no batch mode gaseous releases for this reporting period.

10

TABLE IB (Continued)

Entergy Nuclear Vermont Yankee Effluent and Waste Disposal Annual Report Third and Fourth Ouarters. 2009 Gaseous Effluents -Elevated Releases Continuous Mode Batch Mode (1)

Q arter 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 1.59E-05 3.00E-05 Iodine-133 Ci 4.81E-05 6.71E-05 Iodine-135 Ci ND ND Total for Period Ci 6.40E-05 9.71E-05

3.

Particulates Strontium-89 Ci ND ND Strontium-90 Cil ND ND Cesium-134 Ci ND ND Cesium-137 Ci_

ND ND Barium-Lanthanum-140 Ci ND ND Manganese-54 Ci ND ND Chromium-51I 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 2.05E-05 Total for Period Ci ND 2.05E-05 ND Not Detected at the Plant Stack (1)

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

11

TABLE IC Enterav Nuclear Vermont Yankee Effluent and Waste Disposal Annual Report First and Second Quarters, 2009.

Gaseous Effluents - Ground Level Releases (2)

Continuous Mode Batch Mode

_______________________Quarter Quarter Nucides Released Units l~)2(l) 1(1) 2l

1. Fission Gases ryton-85 Ci._

Krypton-85m Ci Krypton-87 Ci Krypton-88 Ci Xenon-13 3 Ci Xenon-13 5 Ci 1___________

Xenon-135m Ci Xenon-138 Ci Unidentified Ci Total for Peri-od Ci

2.

lodines Iodine-131 Ci Iodine-133 Ci Iodine-I 35 Ci Total for Period Ci

3.

Particulates_______

Strontium-89 Ci Strontiwm-90 Ci Cesium-134 Ci Cesium-137 Ci Barium.-Lanthanum-140 Ci Manganese-54 Ci Chromium-SI Ci Cobalt-58 Ci Cobalt-60 Ci Cerium-141 Ci Zinc-65 Ci Iron-55 Cl 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 2009.

12

TABLE IC (Continued)

Enterav Nuclear Vermont Yankee Effluent and Waste Disposal Annual Report Third and Fourth Ouarters, 2009 Gaseous Effluents - Ground Level Releases(2)

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

1.

Fission Gases Krypton-85 Ci Krypton-85m Ci Krypton-87 Ci Krypton-88 Ci Xenon-133 Ci Xenon-13 5 Ci 1_____

Xenon-135m Ci Xenon-138 Ci Unidentified Ci Total for Period Ci

2.

lodines Iodine-131 Ci Iodine-133 Ci Iodine-135 Ci Total for Period Gi

3.

Particulates_______

Strontium-89 Ci Strontium-90 Ci Cesium-134 Ci Cesium-13 7 Ci Banium-Lanthanum-140 Ci Manganese-54 Ci Cbromium-51 Ci Cobalt-58 Ci Cobalt-60 Ci Cerium-141 Ci Zinc-65 Ci 0ro-55 Cl Total for Period Gi (1) There were no ground level gaseous releases for this-reporting period.

(2)

No Radioactively Contaminated Used Oil was burned during 2009 13

TABLE ID Entergy Nuclear Vermont Yankee Effluent and Waste Disposal Annual Report for 2009 Gaseous Effluents -Nonroutine Releases There were no non-routine or accidental gaseous releases during this reporting period.

14

TABLE 2A Entergy Nuclear Vermont Yankee Effluent and Waste Disposal Annual Report First and Second Quarters. 2009 Liouid Effluents - Summation of All Releases Est. Total Unit Quarter 1 Quarter 2 Error, %

A. Fission and Activation Products

1. Total Release (not including tritium, gases, alpha)

Ci

2.

Average Diluted Concentration During Period

.i+/-Ci/ml

3.

Percent of Applicable Limit B.

Tritium

1.

Total Release Ci

2.

Average Diluted Concentration During Period iCi/ml.

3.

Percent of Applicable Limit C.

Dissolved and Entrained Gases

1. Total Release Ci

2.

Average Diluted Concentration During Period 4Ci/ml

3.

Percent of Applicable Limit D. Gross Alpha Radioactivity

1.

Total Release Ci E.

Volume of Waste Release (prior to dilution)

Liters I I

F.

Volume of Dilution Water Used Durinn Period Liters I

ND Not detected in liquid effluents.

Dash indicates no release of this type. There were no routine or unplanned/abnormal liquid releases in the first or second quarters of 2009.

15

TABLE 2A (Continued)

Entergy Nuclear Vermont Yankee Effluent and Waste Disposal Annual Report Third and Fourth Quarters, 2009 Liquid Effluents - Summation of AllReleases Est. Total Unit Quarter 3 Quarter 4 Error, %

A.

Fission and Activation Products

1.

Total Release (not including tritium, gases, alpha)

Ci ND ND

2.

Average Diluted Concentration During Period tiCi/ml ND ND

3.

Percent of Applicable Limit (a)

ND ND B.

Tritium

1.

Total Release Ci 1.07E-01 2.93E-01

+/-1.OOE+01

2.

Average Diluted Concentration During Period iLCi/ml.

9 38E-06 1.17E-05

3.

Percent of Applicable Limit (a) 9.OOE-04 2.47E-03 C.

Dissolved and Entrained Gases

1.

Total Release Cil ND ND

2.

Average Diluted Concentration During Period tiCi/ml ND ND

3.

Percent of Applicable Limit ND ND

.D.

Gross Alpha Radioactivity

1.

Total Release Ci ND ND FE. Volume of Waste Release (prior to dilution)

Liters (b)

(b)

F.

Volume of Dilution Water Used During Period (c)

Liters 1.14E+07 2.51E-07

+/-2.OOE+01 ND Not detected in liquid effluents.

(a)

The percent of limit is based on the ODCM Control 3.2.2 limiting dose (1.5 mrem/quarter) from liquid effluents and is related to the abnormal leakage of tritiated plant water into the underground environment.

The percent of the concentration limits specified in Appendix B to 10CFR20.1001 - 20.2402, Table 2, Column 2 (ODCM Control 3. 2.1) were estimated to be 0.94% and 1.17% for the third and fourth quarters, respectively.

(b)

Estimation of the volume of tritiated plant water that leaked fromi a subsurface structure into groundwater is on-going and pending full characterization of the environmental contamination that was first reported in January, 2010.

(c)

Dilution due to groundwater flow in the effected subsurface plume area (conservatively estimated to be 50 gpm) during the expected period of water leakage.

16

TABLE 2B Enterav Nuclear Vermont Yankee Effluent and Waste Disposal Annual Report

First and Second Quarters. 2009 Liquid Effluents - Routine Releases Continuous Mode Batch Mode Nuclides Released Unit Quarter 1 Quarter 2 Quarter 1 Quarter 2 S tro ntium -89 C ir Strontium-90 Ci.....

Cesium-1 34 Ci Cesium-137 Ci Iodine-1 31 Ci Cobalt-58 Ci-Cobalt-60 Ci Iron-59 Ci Zinc-65 Ci Manganese-54 Ci Zirconium-Niobium-95 Ci-Molybdenum-99 Ci Technetium-99 Ci-Barium-Lanthanum-140 Ci Cerium-141 Other (specify)

Cil Ci.....

Ci Unidentified Ci Total for Period (above),

Ci J

I Xe-133 Ci Xe-135 Ci ND-Not detected in liquid effluents.

Dash indicates no release of this type.

17

18

TABLE 2B (Continued)

Entergy Nuclear Vermont Yankee Effluent and Waste Disposal Annual Report Third and Fourth Ouarters-2009 Liquid Effluents(a) - Routine Releases Continuous Mode Batch Mode Nuclides Released Unit Quarter3 Quarter4 Quarter 3 Quarter 4 Strontium-89 Ci Strontium-90 Ci Cesium-134.

Ci Cesium-137 Ci lodine-131 Ci Cobalt-58 Ci, Cobait-60 Ci.....

Iron-59 Ci Zinc-65 Ci Manganese-54 Ci Zirconium-Niobium-95 Ci Molybdenum-99 Ci, Technetium-99 Ci Barium-Lanthanum-140 Ci Cerium-141 Other (specify)

Ci Ci Ci Unidentified Ci Total for Period (above)

Ci Xe-133 I

Ci I

Xe-135 Ci ND Not detected in liquid effluents.

Dash indicates no release of this type.

(a)

There was one abnormal release (unplanned and unmonitored) due to tritiated plant water leaking from a subsurface structure into groundwater potentially during the third and fourth quarters. No other radionuclides were detected. See Table 2A for details.

19

TABLE 3 Entergy Nuclear Vermont Yankee Effluent and Waste Disposal Annual Report First and Second Ouarters_ 2009 Solid Waste and Irradiated Fuel Shipments A.- %3id Wasle Shipped Off-SQe for Burial or DMspeosd. (net irm-fiated fuel

1. Type of WaS~e ShipW. fromn WY kf BiufW

~

I___

lsl 8.2rsdOar~teTS 3s7-oa ~.

a. Spent resms. tker sAutes. e4..

n_3

'.- 2.50 E+-Ol Oi00 2÷5- 0 E÷01I

b. Dry Conp esabie wast. equnimem, etc.

W,3 j

2.50 E+D I C,

03

÷;- 2.50 E+01

.I~n-.atkiteu com'pu,*.ds*

, catm-ldi O c, fr3 0

-2.50 E+{01 Ci le*3

+; 2.50 E+OL1 S!lii3ppe fram Pfvcessa..-s3 k-w B o d ~a~&

Ei Th om

a. spent re-i-s, sf*'lerd wes etc.

m3 30-55

÷i-2.50 E+01 C;

2.268E+2 2.50 E+01

b. Dr,',ntessýe waste. egoip.ent. etc.

M3 27.67

-,- Z5:3 E-+01 EL0.0 250 E÷01 C. Irradwlted cornp'-'s, worc4 rods, exc.,

0.0 D.

- 2.50 E+01 C*

0.P

÷ 2.50 EýO1 2 ~s;~ma~e 01 ~~ia'0~

N'Udlae C~o~r~oss~an ~

01 Waste~

jsowpe Isetop-pament 0 1 Cfrl 0.3%

CT-51 15.2-%

na rra M.3%

1'.,54 4.1%.

Fe-55 28.S%

FE-SS 52.4%

C*-56 05 Fe-5ýs Gi7%

CO-.W 16.7%

Co-56 C.836 NW3 7.31%

-C.o-,

23.1%

Zn-65 34.3%

N-3 I.%

Cs-137 5.5%

Zl-,-95

_______________Cs437*

0.3%

SI" h-UdeS C4%,ts3

-e fluOde.5 t*

eg:eamsf tha, 0.1% Of ft toaCtiVi.t

3. MsposAtop. of So,,le Waste 8 enls (Ist & 3o Qnmers)

No. Ot sht s

R IVY From FWpncessr Mooe To Pmocesor ToE kuro If.,

x

._._,-Be-3r Creef TN

____________________________~m swunsvi-Eiwin, TN

____________Z)

S-EB Cew TN utid~.

Ess

ý C

Ur

_________pif-T)______

MO_______

Ens~afTIS4;dma C*Na UT 1G Sh4uk Es~n 7%

nluck EýS -Bomkaf. s':"

B. irradiated Fiea, Shiprmwts fD(post*)*: None Ci. Addifionar DaO (, st & 2ind uarter)

&ipptnIsr e oe sInft KY X, Pmcessj V to r,-in

] PIe)ss t *W.31 Class ofSo~id Wa~ste SbT4*d AU x-r A

Iye of 1

De4G w

,:DC. Typef*

An rbo;~

I i

I 20

TABLE 3 (Continued)

Entergy Nuclear Vermont Yankee Effluent and Waste Disposal Annual Report Third and Fourth Quarters, 2009 Solid Waste and Irradiated Fuel Shipments A, Sokia W~sfq ShippedI Off-Sil for SuriA or Disposal jiW. irmdiatsi fuel)

1. T*,eofWa.e____________

S.nppe: (m YY bor Burial 3?- 's 4, ni~rs Est Total Emx -'

a. Spew_

resi_, 11w_ s

_jds, etc m3

,0 J-2 50 E-01

__I O.j

-,"- 2-50 E0:C cu

.OJ C.

2.50 E2.01

c. vra.-ated om-rs ets. PcWc*~l rod.s, et,

=3 4

0.0

.- 2.50 EN'1

_____.___i OZ-0 4 2-0S-E-*0*

SsfJned trn foor~i 8;173

3fd & Vi Quarster--

Est To, A ErnDT

a. Spent resb

,t

. e.

.33 J

i5 2 J

.1-2F50 E-0.g F.______

55_____

Fe-2522.-5000, Co-0.-,0 es.pme. etc.

M 55 2.50 =-.5

_5.716--E.05

- 50 E.0 c adn3.e, am c",.

F'.1o "3' 2.50 EPcl I

c.

lm~aed Fuji SomrntsVO

- ioa: N3313 ci Ad*n O02E,*2.50 4-01_

2.Esnn~ats of Major Ntdcus t~

Typ of Waste.

1 01 cn-S a%

Pn-54 4.11; Fr-55,V 41a.5%

Fe-5528A.0%

Fe-55 5.%co-40348 0-6%

Fe-f%

U.7%

Ni-43

.5 Co-O

.7%

OD-58 0.%Rb-57 2.3%

Ww7.3%

Cc-SOIC 211%

Ets-152 ZOA%

Zn-65 34.a%

Ni-63 0.4%

cs-I 37 a.%Z-65 10.9%

_________________________Cc-137 0.3%

91) d'%cvoa o0t thm~e. nuctWez r.,t ame grtklw tcm 0. 1% *M? tots =n9 at

1. 0OmFsitim of So149 Wasle V.mersts 04si & 441 Qualefst No. of sr=1me-nz ROM ivy Fstlon Plocessa-Mode To pslcessw' To Bu~al 0

mw$___

EGb I

BaffrAPE SC x

tnid, j-

~

0AlRk~TN 20 3-Sear Cteek TN il________

Ere-gy sdodame. Cilv UT B. Iffadiated Fuel Stipments (L isiio):

NonG C.M66-Niitos9Dta f3'd S. 4ts Quar'ters suppPIWI7 I91b~ation t v 1 P.-ocearsw to Burts:

L Cass af Seld Wsospa AU I

A Tye f ",iinerm Ltes1 13nmew3 DeLonna GDC, Type A 21

TABLE 4A Entergy Nuclear Vermont Yankee Maximums Off-Site Doses/Dose Commitments to Members of the Public from Liquid and Gaseous Effluents for 2009 (10CFR50, Appendix I)

Dose (torem)(a)

S 1st 2nd 3md 4th Source Quarter I Quarter Quarter Quarter Year(b),

Total Body Dose T.--

1.35E-05 3.71E-05 5.06E1-05 Footnotes (c)

(c)

. (c)

Organ Dose 1.35E-05 3.71E-05 5.06E-05 Footnotes (C)

(c)

.... r.e i

lodines and Particulates 1.06E-04

1. 16E-04 2.49E-04 3.17E-04 7.88E-04 Footnotes (f)

(g)

(h)

(i)

Beta Air (mrad)

I Footnotes (d)

(d)

Gamma Air (mrad)

Footnotes (d)

(d)

(d) 0i....rect:

Radito 3.96 4.11 4.28 4.49 16.83 (e)

"Maximum" means the largest fraction of the corresponding I0CFR50, 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 the first and second quarters. In the third and fourth quarters, the dose is to the CHILD/Total Body for the maximally-exposed individual.

(d)

There were no noble gas releases in this quarter.

(e)

Maximum direct dose point located on the old west site boundary, approximately 208 meters from the Turbine Building (per ODCM, Rev. 32, Sect. 6.11.1).

(f)

CHILD/All Organs/WNW /2400 meters from stack (g)

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

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

CHILD/FHYROID/NW/2900 meters from stack "All Organs" include equal impact to Liver, Kidney, Lung, GI-LLI, Thyroid and Whole Body.

22

TABLE 4B Entergy Nuclear Vermont Yankee Maximum Annual Dose Commitments from Direct External Radiation, Plus Liquid and Gaseous Effluents for 2009(*)

(40CFR190)

Pathway Total Body Maximum Organ Thyroid (mrem)_(mrem)

(mrem)

Direct External (a) (b) 16.83 16.83 16.83 Liquids (c) 5.06E-05 5.06E-05 5.06E-05 Gases (c) 3.87E-04 3.93E-04 7.88E-04 Annual Total (d) 16.83 16.83 16.83

(*)

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)

The direct dose reported here was calculated using the current ODCM methodology and represents the dose to the former nearest residence, which was located in the S sector at 385 meters from the stack prior to the vacancy of this residence in 2008 and the purchase of land by Vermont Yankee., An estimate of the dose to the new nearest real residence and maximum impacted site boundary, which is now located in the SSW sector approximately 428 meters from the stack, results in an annual dose reduction (from Turbine Building shine) from approximately 15.2 mrem to 7.8 mrem.

(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.

23

TABLE 4C Receptor Locations Entergy Nuclear Vermont Yankee Nearst R~idet(2)

Nearest Milk Sector Site Boundary ()

Nearest Resident( 2 nearesWithin (Meters)

(Meters) 10 km (Meters)

N 400 1400 NNE 350 1384' 5520 (cows)

NE 350.

1255.

ENE 400 966 E

500 933 ESE 700 1915 SE 750 1963 3600 (cows)

SSE 850 2044 S

385 644 2220 (cows)

SSW 300 451 SW 250 418 8200 (cows)

WSW 250 451 9730 (cows):

W 300 628 820 (cows)

WNW

400, 1062 NW 550 2253 NNW 550.

1738 (1)

Vermont Yankee UFSAR Figure 2.2-5.

(2)

The location(s) given are based on information from the Vermont Yankee 2009 Land Use Census and are relative to the plant stack. Gardens are assumed to be present at all resident locations.

24

TABLE 4D Usage Factors for Environmental Pathways Entergy Nuclear Vermont. Yankee Age Fish Potable Veg.

Leafy Veg.

Milk Meat Inhalation Group (kljr)

(I/yr)

(kg/yr)

(I/yr)

(kg/yr)

(m3/yr)

Adult 21 730 520 64 310 110 8,000 Teen 16 510

630, 42 400 65 8,000 Child 6.9 510 520 26 330 41 3,700 Infant 0

330 0

0 330 0

1,400 Regulatory Guide 1.109, Table E-5 (Reference 2).

25

TABLE 4E Environmental Parameters for Gaseous Effluents

Entergy Nuclear Vermont Yankee Vegetables Cow Milk Goat Milk Meat Variable Stored Leafy' Pasture Stored Pasture Stored Pasture E Stored YV Agricultural Productivity (kg/m2) 2

-2 0.70 2

0.70 2

P Soil Surface Density (kg/m 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.

26

TABLE 4E (Continued)

Environmental Parameters for Gaseous Effluents Entergy Nuclear Vermont Yankee Veaetables Cow Milk Goat Milk Meat VeealsCow 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 F1 Fraction Elemental Iodine = 0.5 H

Absolute Humidity = 5.6 d)

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 (non-growing 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 II analyses, an absolute humidity value equal to 5.6 (gm/mr) shall be used to reflect conditions in the Northeast (

Reference:

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

27

TABLE 4F Environmental Parameters for Liquid Releases (Tritium) Via Groundwater Entergy Nuclear Vermont Yankee Variable Potable Water Aquatic Food Stored Veg.

Leafy Veg.

Meat Cow Milk Name (Units)

Mixing Ratio 2.93E-05 2.93E-03 2.93E-05 2.93E-05 2.93E-05 2.93E-05 Transit Time (hrs)*

12 24 0

0 0

0 Water Uptake**"

50.0 60.0 (animal) (L/day)

Feed Uptake**

50.0 50.0 (animal) (kg/day)

Values are from Regulatory Guide 1.109, Table E-15 (Reference 2)

- Values are from Regulatory Guide 1.109, Table E-3 (Reference 2) 28

TABLE 5A VERMONT YANKEE JAN 09 -

DEC 09 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS A CLASS FREQUENCY (PERCENT) 3.45 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 6

0 4

4 2

3 4

3 0

0 0

1

.0 0

3 1

0 31 (1) 2.16

.00 1.44 1.44

.72 1.08 1.44 1.08

.00

.36

.00

.00 1.08

.36

.00 11.15 (2)

.07

.00

.05

.02

.04

.05

.04

.00

.01

.00

.04

.01

.00

.39 4-7 39 9

1 4

7 9

11 6

0 0

0 2

8 6

19 38 0

159 (1). 14.03 3.24

.36 1.44 2.52 3.24 3.96 2.16

.00

.72 2.88 2.16 6.83 13.67

.00 57.19 (2)

.48

.11

.01

.05

.09

.11

.14

.07

.00

.02

.10

.07

.24

.47

.00 1.98 8-12 7

4 3

1 0

2 2

1 3

0 1

1 11 9

6 16 0

67 (1)

-2.52 1.44 1.08

.36

.00

.72

.36 1.08

.00

.36

.36 3.96 3.24 2.16 5.76

.00 24.10 (2)

.09

.05

.04

.01

.00

.02

.01

.04

.00

.01

.14

.11

.07

.20

.00

.83 13-18 11 0

0 0

0 6

1 3

0 21 (1) 3.96

.00

.00 2.16

.36 1.08

.00 7.55 (2)

.14

.00

.07

.01

.04

.00

.26 19-24 0

0 0

0 (1)

.00

.00 (2)

.00

.00,

.00

.00 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS 63 13 8

9 9

14 17 10 3

0 1

4 19 21 29 58 0

278 (1) 22.66 4.68 2.88 3.24 3.24 5.04 6.12 3.60 1.08

.00

..36 1.44 6.83 7.55 10.43 20.86

-.00 100.00 (2)

.78

.16

.10

.11

.17

.21

.12

.04

.00

.01

.05

.24

.26

.36

.72

.00 3.45 (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 MPHI 29

VERMONT YANKEE JAN 09 -

DEC 09 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS B CLASS FREQUENCY (PERCENT)

=

2.67 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 1

1 0

2 3

2 2

3 1

0 0

1 0

0 2

1 0

19 (1)

.47

.00

.93 1.40

.93

.93 1.40

.47

.00

.47

.00

.93

.47

.00 8.84 (2)

.01

.00

.02

.04

.02

.04

.01

.00

.01

.00

.02

.01

.00

.24 4-7 15 3

6 3

7 20 15 13 8

0 1

1 4

2 12 28 0

138 (1) 6.98 1.40 2.79 1.40 3.26 9.30 6.98 6.05 3.72

.00

.47

.47 1.86

.93 5.58 13.02

.00 64.19 (2)

.19

.04

.07

.04

.09

.25

.19

.16

.10

.00

.01

.05

.02

.15

.35

.00 1.71 8-12 8

1 0

0 1

0 2

2 6

1 0

4 4

9 6

8 0

52 (1) 3.72

.47

.00

.47

.00

.93

.93 2.79

.47

.00 1.86 1.86 4.19 2.79 3.72

.00 24.19 (2)

.10

.01

.00

.01

.00

.02

.07

.01

.00

.05

.11

.07

.10

.00

.65 13-18 2

0

.0 0

0 0

1 0

0 0

0 2

0 1

0 6

(1)

.93

.00

.47

.00

.93

.00

.47

.00 2.79 (2)

.02

.00

.01

.00

.02

.00

.01

.00

.07 19-24 0

0 0

0

-(1)

.00

.00.

.00

.00 (2)

.00

.00-

.00 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS 26 5

6 5

11 22 19 18 16 1

1 6

8 13 20 38 0

215 (1) 12.09 2.33 2.79 2.33 5.12 10.23 8.84 8.37 7.44

.47

.47 2.79 3.72 6.05 9.30 17.67

.00 100.00 (2)

.32

ý06

.07

.06

.14

.27

.24

.22

.20

.01

.07

.10

.16

.25

.47

.00 2.67 (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

I VERMONT YANKEE JAN 09 -

DEC 09 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS C CLASS FREQUENCY (PERCENT) 5.02 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

(1)

.00

.00 (2)

.00

.00 C-3 7

3 6

8 6

11

.3 9ý 3

1 1

0 2

2 0

5 0

67 (1) 1.73

.74 1.49 1.98 1.49 2.72

.74 2.23

.74

.25

.00

.50

.00 1.24

.00 16.58 (2)

.09

.04

.07

.10

.07

.14

.04

.11

.04

.01

.00

.02

.00

.06

.00

.83 4-7 23 12 iC 11 20 19 18 32 13 5

2 3

13 3

5 44 0

233 (1) 5.69 2.97 2.48 2.72 4.95 4.70 4.46 7.92 3.22 1.24

.50

.74 3.22

.74 1.24 10.89

.00 57.67 (2)

.29

.15

.12

.14

.25

.24

.22

.40

.16

.06

.02

.04

.16

.04

.06

.55

.00 2.90 8-12 7

2 0

0 1

2 3

2 25 2

2 2

4 22 13 8

0 95 (1) 1.73

.50

.00

.25

.50

.74

.50 6.19

.50

.99 5.45 3.22 1.98

.00 23.51 (2)

.09

.02

.00

.01

.02

.04

.02

.31

.02

.05

.27

.16

.10

.00 1.18 13-18 2

0 0

0 1

0 0

2 2

2 0

9 (1)

.50

.00

.25

.00

.50

.00 2.23 (2)

.02

.00

.01

.00

.02

.00

.11 19-24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 GT 24 0

0 0

0 (1)

.00

.. O0

.00

.00 (2)

.00

.00 ALL SPEEDS 39 17 16 19 27 32 24 43 42 8

5 5

19 29 20 59 0

404 (1) 9.65 4.21 3.96 4.70 6.68 7.92 5.94 10.64 10.40 1.98 1.24 1.24 4.70 7.18 4.95.14.60

.00 100.00 (2)

.48

.21

.20

.24

.34

.40

.30

.53

.52

.10

.06

.24

.36

.25

.73

.00 5.02 (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

VERMONT YANKEE JAN 09-DEC 09 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS D CLASS FREQUENCY (PERCENT)

=

43.47 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

2 0

0 1

0 0

0 1

0 0

0.

0 0

0 4

(i)

.00

.06

.00

.03

.00

'00

.00

.03

.00

.11 (2)

.00

.02

.00

.01

.00

.01

.00

.05 C-3 94 56 33 35 55 56 81 84 51 31 32 46 38 39 93 159 0

983 (1) 2.69 1.60

.94 1.00 1.57 1.60 2.32 2.40 1.46

.89

.91 1.32 1.09 1.11 2.66 4.55

.00 28.10 (2) 1.17

.70

.41

.43

.68

.70 1.01 1.04

.63

.39

.40

.57

.47

.48 1.16 1.98

.00 12.22 4-7 161 43 12 33 47 98 98 187 133 33 21 33 110 88 174 350 0

1621 (1) 4.60 1.23

.34

.94 1.34 2.80 2.80 5.35 3.80

.94

.60

.94 3.14 2.52 4.97 10.01

.00 46.34 (2) 2.00

.53

.15

.41

.58 1.22 1.22 2.32 1.65

.41

.26

.41 1.37 1.09 2.16 4.35

.00 20.14 8-12 105 13 0

0 1

7 6

26 95 24 5

2 62 160 138 114 0

758 (1) 3.00

.37

.00

.03

.20

.17

.74 2.72

.69

.14

.06 1.77 4.57 3.95 3.26

.00 21.67 (2) 1.30

.16

.00-

.00

.01

.09

.07

.32 1.18

.30

.06

.02

.77 1.99 1.71 1.42

.00 9.42 13-18 18 1

0 0

1 1

7 2

0 0

0 36 48 12 0

126 (1)

.51

.03

.00

.03

.20

.06

.00

.00 1.03 1.37

.34

.00 3.60 (2)

.22

.01

.00

.01

.09

.02

.00

.45

.60

.15

.00 1.57 19-24 0

0 0

2 4

0 0

6 (1)

.00

.06

.11

.00

.17 (2)

.00

.02

.05

.00

.07 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS 378 113 45 70 103 161 187 298

-286 90 59 81 210 325 457 635 0

3498 (1) 10.81 3.23 1.29 2.00 2.94 4.60 5.35 8.52 8.18 2.57 1.69 2.32 6.00. 9.29 13.06 18.15

.00 100.00 (2) 4.70 1.40

.56

.87 1.28 2.00 2.32 3.70 3.55 1.12

.73 1.01 2.61 4.04 5.68 7.89

.00 43.47 (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

VERMONT YANKEE JAN 09 -, DEC 09 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS E CLASS FREQUENCY (PERCENT)

=

27.69 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

1 0

1 2

0 1

0 0

6 (1)

.00

.04

.00

.04

.09

.00

.04

.00

.27 (2)

.00

.01

.00

.01

.02

.00

.01

.00

.07 C-3 55 17 20 17 15 22 44 58 81 109 144 189 193 142 186 173 0

1465 (1) 2.47

.76

.90

.76

.67

.99 1.97 2.60 3.64 4.89 6.46 8.48 8.66 6.37 8.35 7.76

.00 65.75 (2)

.68

.21

.25

.21

.19

.27

.55

.72 1.01 1.35 1.79 2.35 2.40 1.76 2.31 2.15

.00 18.21 4-7 39 11 1

1 2

5 21 32 42 20 13 22 83 86 119 140 0

637 (1) 1.75

.49

.04

.09

.22

.94 1.44 1.89

.90

.58

.99 3.73 3.86 5.34 6.28

.00 28.59 (2)

.48

.14

.01

.02

.06

.26

.40

.52

.25

.16

.27 1.03 1.07 1.48 1.74

.00 7.92 8-12 3

0 0

0 1

0 0

4 9

6 1

0 6

31 25 15 0

101 (1)

.13

.00

.04

.00

.18

.40

.27

.04

.00

.27 1.39 1.12

.67

.00 4.53 (2)

.04

.00

.01

.00

.05

.1i

.07

.01

.00

.07

.39

.31

.19

.00 1.26 13-18ý 0

0 0

0 2

0 0

0 1

9 4

2 0

18 (1)

.00

.09

.00

.04

.40

.18

.09

.00

.81 (2)

.00

.02

.00

.01

.11

.05

.02

.00

.22 19-24 0

0 0

0 1

0 0

1 (1),

.00

.04

.00

.04 (2)

.00

.01

.00

.01 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS 97 28

21.

18 18 27 65 94 135 136 158 212 286 268 335 330 0

2228 (1) 4.35 1.26

.94

.81

.81 1.21 2.92 4.22 6.06 6.10 7.09 9.5212.84 12.03 15.04 14.81

.00 100.00 (2) 1.21

.35

.26

.22

.34

.81 1.17 1.68 1.69 1.96 2.63 3.55 3.33 4.16 4.10

.00 27.69 (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 I

VERMONT YANKEE JAN 09-DEC 09 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS F CLASS FREQUENCY (PERCENT) 13.83 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

1 0

0 0

1 0

2 (1)

.00

.09

.00

.09

.00

.18 (2)

.00

.01

.00

.01

.00

.02 C-3 18 9

1 5

9 11 14 25 56 82 149 205 190 116 79 57 0

1026 (1) 1.62

.81

.09

.45

.81

.99 1.26 2.25 5.03 7.37 13.39 18.42 17.07 10.42 7.10 5.12

.00 92.18 (2)

.22

.11

.01

.06

.11

.14

.17

.31

.70 1.02 1.85 2.55 2.36 1.44

.98

.71

.00 12.75 4-7 2

0 0

0 2

5 9

2 2

6 7

6 17 26 0

84 (1)

.18

.00

.18

.45

.81

.18

.54

.63

.54 1.53 2.34

.00 7.55 (2)

.02

.00

.02

.06

.11

.02

.07

.09

.07

.21

.32

.00 1.04 8-12 0

0 0

0 1

0 0

(1)

.00

.09

.00

.09 (2)

.00.

.00

.01

.00

.01 13-18 0

0 0

0

.0 0

0 0

(1)

.00

.00 (2)

.00

.00 19-24 0

0 0

0 (1)

.00

.00 (2)

.00

.00.

.00

.00 GT 24 0

0 b

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS

-20 9

1

.5 9

12 16 30 65 84 151 211 197 - 122 97 84 0

1113 (1) 1.80

.81

.09

.45

.81 1.08 1.44 2.70 5.84 7.55 13.57 18.96 17.70 10.96 8.72 7.55

.00 100.00 (2)

.25

.11

.01

.06

.11

.15

.20

.37

.81 1.04 1.88 2.62 2.45 1.52 1.21 1.04

.00 13.83 (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

VERMONT YANKEE JAN 09 -

DEC 09 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS G CLASS FREQUENCY (PERCENT) 3.86 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

1 0

0 0

1 (1)

.00

.32

.00

.32 (2)

.00

.01

.00

.01 C-3 8

4 1

4 2

4 3

9 17 28 37 59 50 30 24 19 0

299 (1) 2.57 1.29

.32 1.29

.64 1.29

.96 2.89 5.47 9.00 11.90 18.97 16.08 9.65 7.72 6.11

.00 96.14 (2)

.10

.05

.01

.05

.02

.05

.04

.11

.21

.35

.46

.73

.62

.37

.30

.24

.00 3.72 4-7 0

0 0

1 0

.1 2

0 2

1 3

1 0

11 (1)

.00

.32

.00

.32

.64

.00

.64

.32

.96

.32

.00 3.54 (2)

.00

.01

.00

.01

.02

.00

.02

.01

.04

.01

.00

.14 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 8

4 1

4 2

4 3

10 17 29 39 59 52 32 27 20

.0 311 (1) 2.57 1.29

.32 1.29

.64 1.29

.96 3.22 5.47 9.32 12.54 18.97 16.72 10.29 8.68 6.43

.00 100.00 (2)

.10

.05

.01

.05

.02

.05

.04

.12

.21

.36

.48

.73

.65

.40

.34

.25

.00 3.86 (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) 35.

VERMONT YANKEE JAN 09 -

DEC 09 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

0 0

2 0

1 1

0 11 1

1 2

1 1

1 0

13 (1)

.00

.02

.00

.01

.00

.01

.02

.01

.00

.16 (2)

.00

.02

ý.00

.01

.00

.01

.02

.01

.00

.16 C-3 189 90 65 75

92.

109 151 191 209 251 363 501 473 329 387 415 0

3890 (1) 2.35 1.12

.81

.93 1.14 1.35 1.88 2.37 2.60 3.12 4.51 6.23 5.88 4.09 4.81 5.16

.00 48.34 (2) 2.35 1.12

.81

.93 1.14 1.35 1.88 2.37 2.60 3.12 4.51.6.23 5.88 4.09 4.81 5.16

.00 48.34 4-7 279 78 30 52 83 151 165 276 205 61 41 67 227 192 349 627 0

2883 (1) 3.47

.97

.37

.65 1.03 1.88 2.05 3.43 2.55

.76

.51

.83 2.82 2.39 4.34 7.79.

.00 35.83 (2)

-3.47

.97

.37

.65 1.03 1.88 2.05 3.43 2.55

.76

.51

.83 2.82 2.39 4.34 7.79

.00 35.83 8-12 130 20

3.

1 4

11 13 35 138 33

-9 9

.87 231 189

161 0

1074 (1) 1.62

.25

.04

.01

.05

.14

.16

.43 1.71

.41

.11

.11 1.08 2.87 2.35 2.00

.00 13.35 (2) 1.62

.25

.04

.01

.05

.14

.16

.43 1.71

.41

.11

.11 1.08 2.87 2.35 2.00

.00 13.35 13-18 33 1

0 0

1 1

i1 2

0 0

1 55 55 20 0

180 (1)

.41

.01

.00

.01

.14

.02-

.00

.01

.68

.68.

.25

.00 2.24 (2)

.41

.01

.00

.. 01

.01

.14

.02

.00

.01

.68

.25

.00 2.24 19-24 0

-O 0

0 0

0 1

2 4

0 0

7 (1)

.00

.00_

.00

.01

.02

.05.

.00

.09 (2)

-. 00

.00

.01

.02

.05

.00

-. 00

.09 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

".00

.00

.00.

.00 ALL SPEEDS

-631 189

'.98 130 179 272 331 503 564 348 414 578 791 810 985 1224 0

8047 (1) 7.84 2.35 1.22 1.62 2.22 3.38 4.11 6.25 7.01 4.32 5.14 7.18 9.83 10.07 12.24 15.21

.00 100.00 (2) 7.84 2.35 1.22 1.62 2.22 3.38 4.11 6.25ý 7.01 4.32 5.14 7.18 9.83 10.07 12.24 15.21

.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) 36

Table G-l:

Upper Level Joint Frequency Distribution VERMONT YANKEE JAN 09 -

DEC 09 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT WIND DATA STABILITY CLASS A CLASS FREQUENCY (PERCENT)

=

1.88 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

0 0

1 (1)

.00

.67

.00

.67 (2)

.00

.01

.00

.01 C-3 2

3 5

2 2

1 4

1 1

0 0

1 2

3 0

27 (1) 1.33 2.00 3.33 1.33 1.33

.67 2.67

.67

.00

.67 1.33 2.00

.00 18.00 (2)

.03

.04

.06

.03

.01

.05

.01

.00

.01

.03

.04

.00

.34 4-7 11 5

2 1

7 19 5

6 4

4 3

0 0

2 2

4 0

75 (1) 7.33 3.33 1.33

.67 4.67 12.67 3.33 -4.00 2.67 2.67 2.00

.00

.00 1.33 1.33 2.67

.00 50.00 (2).

.14

.06

.03

.01

.09

.24

.06

.08

.05

.04

.00

.03

.05

.00

.94 8-12 3

1 0

0 1

2 2

2 4

2 1

0 3

1 1

8 0

31 ti) 2.00

.67

.00

.67 1.33 1.33 1.33 2.67-1.33

.67

.00 2.00

.67

.67 5.33

.00 20.67 (2)

.04

.01

.00

.01

.03

.05

.03

.01

.00

.04

.01

.10

.00

.39 13-18 0

0 0

1 0

0 3

1 0

5

11)

.00

.67

.00

.00 2.00

.67

.00 3.33 (2)

.00

.01

.00

.04

.01

.00

.06 19-24 0

0 0

0 2

0 0

3 0

5 ti)

.00

.00 1.33

.00

.00 2.00

.00 3.33 (2)

.00

.03

.00

.04

.00

.06 GT 24 0

0 0

6 0

6 (1)

.00

.00 4.00

.00 4.00 (2)

.00

.08

.00

.08 ALL SPEEDS 16 9

7 3

10 22 11 9

9 6

4 1

6 4

8 25 0

150 (1) 10.67 6.00 4.67 2.00 6.67 14.67 7.33 6.00- 6.00 4.00 2.67

.67 4.00 2.67 5.33 16.67

.00 100.00 (2)

.20

.11

.09

.04

.13

.28

.14

.11

.08

.05

.01

.08

.05

.10

.31

.00 1.88 (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

VERMONT YANKEE JAN 09 -

DEC 09 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT WIND DATA STABILITY CLASS D CLASS FREQUENCY (PERCENT) 1.66 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

.DD

.D0

.00

.00 (2)

.00

.00 C-3 2

2 0

0 0

0

'3 1

0 0

0 8

f1) 1.52 1.52

.00

.00 2.27

.76

.00

.00 6.06 (2)

.03

.00

.04

.01

.00

.10 4-7 0

1 0

0 3

4 3

0 2

1 0

0 0

2 1

4 0

21 (1)

.00

.76

.00

.00 2.27 3.03 2.27

.00 1.52

.76'

.00

.00 1.52

.76 3.03

.00 15.91 (2)

.00

.01

.00

.04

.05

.04

.00

.03

.01

.00

.03

.01

.05

.00

.26 8-12 6

2 0

0 0

11 8

1 10 1

0 2

2 2

5 17 0

67 (1) 4.55 1.52

.00

.00 8.33 6.06

.76 7.58

.76

.00 1.52 1.52 1.52 3.79 12.88

.00 50.76 (2)

.08

.03

.00

.14

.10

.01

.13

.01

.00

.03

.06

.21

.00

.84 13-18 3

1 1

0 0

0 2

2 4

9 0

22 (1) -2.27

.76

.00

.00 1.52 1.52 3.03 6.82

.00 16.67 (2)

.04

.01

.00

.03

.05

.11

.00

.28 19-24 0

0 0

1 0

0 0

0 6

3 1

1 0

12 (1)

.00

.76

.00

.00 4.55 2.27

.76

.00 9.09 (2)

.00'

.00

.01

.00

.08

.04

.01

.00

.15 GT 24 0

0 0

2 0

.2 (1)

.00

.00 1.52

.00 1.52 (2)

.00

-. 00

.00

.03

.00

.03 ALL SPEEDS 11 6

1 0

3 16 14 2

12 2

0 2

10 9

11 33 0

132 (1) 8.33 4.55

.76

.00 2.27 12.12 10.61 1.52 9.09 1.52

.00 1.52 7.58 6.82 8.33 25.00

.00 100.00 (2)

.14

.08

.01

.00

.04

.20

.18

.03

.15

.03

.00

.03

.13

.11

.14

.41

.00 1.66 (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

VERMONT YANKEE JAN 09 -

DEC 09 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT WIND DATA STABILITY CLASS C CLASS FREQUENCY (PERCENT)

=

3.81 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VRBL TOTAL MPH CALM 0

0 0

0 (1)

.00

.00 (2)

.00

.00 C-3 3

0 0

0 1

1 1

0 0

1 0

0 0

9 (1)

.99

.00

.33

.00

.33

.00

.00 2.96 (2)

.04

.00

.01

.00

.01

.00

.11 4-7 16 1

5

.4 3

11

11.

4 2

0 0

.0 1

1 2

13 0

74 (1) 5.26

.33 1.64 1.32

.99 3.62 3.62 1.32

.66

.00

.33

.66 4.28

.00 24.34 (2)

.20

.01

.06

.05

.04

.14

.05

.03

.00

.01

.03

.16

.00

.93 8-12 24 5"

0 2

1 13 13 17 9

4 1

1 8

8 1

28 0

135 (1) 7.89 1.64

.00

.66

.33 4.28 4.28 5.59 2.96 1.32

.33

.33 2.63 2.63

.33 9.21

.00 44.41 (2)

.30

.06

.00

.03

.01

.16

.21

.11

.05

.01

.10

.01

.35

.00 1.69 13-18 8

1 1

5 1

1 15 1

0 2

9 6

3 12 0

67 (1) 2.63

.33

.33 1.64

.33

.33 4.93

.33

.00

.66 2.96 1.97

.99 3.95

.00 22.04 (2)

.10

.01

.06

.01

.19

.01

.00

.03

.11

.08

.04

.15

.00

.84 19-24 3

0 0

1 0

0 0

0 5

3 1

2 0

15 (1)

.99

.00

.33

.00

.00 1.64

.99

.33

.66

.00 4.93 (2)

.04

.00

.01

.00

.06

.04

.01

.03

.00

.19 GT 24 3

0 0

1 0

4 (1)

.99

.00

.33

.00 1.32 (2)

.04

.00

.01

.00

.05 ALL SPEEDS 57 7

6 7

6 31 26 23 27 5

1 3

23 19 7

56 0

304 (1) 18.75 2.30 1.97 2.30 1.97 10.20 8.55 7.57 8.88 1.64

.33

.99 7.57 6.25 2.30 18.42

.00 100.00 (2)

.72

.09

.08

.09

.08

.39

.33

.29

.34

.06

.01

.04

.29

.24

.09

.70

.00 3.81 (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

VERMONT YANKEE JAN 09 -

DEC 09 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT WIND DATA STABILITY CLASS D CLASS FREQUENCY (PERCENT)

=

50.58 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 51 38 37 39 53 39 67 36 18 9

13 10 9

15 29 49 0

512 (1) 1.27

.94

.92

.97 1.31

.97 1.66

.89

.45

.22

.32

.25

.22

.37

.72 1.22

.00 12.70 (2)

.64

.48

.46

.49

.66

.49

.84

.45

.23

.11

.16

.13

.11

.19

.36

.61

.00 6.42 4-7 87 45 28 27 68 84 166 140 78 20 11 22 27 27 46 205 0

1081 (1) 2.16 1.12

.69

.67 1.69 2.08 4.12 3.47 1.94

.50

.27

.55

.67

.67 1.14 5.09

.00 26.82 (2) 1.09

.56

.35

.34

.85 1.05 2.08 1.76

.98

.25

.14

.28

.34

.58 2.57

.00 13.56 8-12 139 36 11 9

21 36 71 145 171 26 18 27 112 110 72 292 0

1296 (1) 3.45

.89

.27

.22

.52

.89 1.76 3.60 4.24

.65

.45

.67 2.78 2.73 1.79 7.24

.00 32.15 (2) 1.74

.45

.14

.11

.26

.45

.89 1.82 2.15

.33

.23

.34 1.41 1.38

.90 3.66

.00 16.26 13-18 91 6

1 1

1 6

3 21 105 12 4

13 98 183 104 194 0

843 (1) 2.26

.15

.02

.15

.07

.52 2.60

.30

.10

.32 2.43 4.54 2.58 4.81

.00 20.91 (2) 1.14

.08

.01

.08

.04

.26 1.32

.15

.05

.16 1.23 2.30 1.30 2.43

.00 10.58 19-24 31 0

0 0

1 1

2 0

22 2

0 0

36

41 35 85 0

256 (1)

.77

.00

.02

.05

.00

.55

.05

.00

.89 1.02

.87 2.11

.00 6.35 (2)

.39

.00

.01

.03

.00

.28

.03

.00

.45

.51

.44 1.07

.00 3.21 GT 24 4

0 0

0 1

0 0

2 16 20 0

43 (1)

.10

.00

.02

.00

.05

.40

.50

.00 1.07 (2)

.05

.00

.01

.00

.03

.20

.25

.00

.54 ALL SPEEDS 403 125 77 76 144 166 309 342 395 69 46 72 282 378 302 845 0

4031 (1) 10.00 3.10 1.91 1.89 3.57 4.12 7.67 8.48 9.80 1.71 1.14 1.79 7.00 9.38 7.49 20.96

.00 100.00 (2) 5.06 1.57

.97

.95 1.81 2.08 3.88 4.29 4.96

.87

.58

.90 3.54 4.74 3.79 10.60

.00 50.58 (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

VERMONT YANKEE JAN 09 -

DEC 09 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT WIND DATA STABILITY CLASS E CLASS FREQUENCY (PERCENT)

=

29.55 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

1 0

0 0

0 1

0 0

2 (1)

.00

.04

.00

.04

.00

.08 (2)

.00

.01

.00

.01

.00

.03 C-3 87 61 33 33 63 67 88 52 18 12 8

9 15 11 21 58 0

636 (1) 3.69 2.59 1.40 1.40 2.68 2.85 3.74 2.21

.76

.51

.34

.38

.64

.47

.89 2.46

.00 27.01 (2) 1.09

.77

.41

.79

.84 1.10

.65

.23

.15

.10

.11

.19

.14

.26

.73

.00 7o98 4-7 86 11 7

7 18 25 107 119 53 21 12 16 34 35 35 260 0

846 (1) 3.65

.47

.30

.76 1.06 4.54 5.05 2.25

.89

.51

.68 1.44 1.49 1.49 11.04

.00 35.92 (2) 1.08

.14

.09

.23

.31 1.34 1.49

.66

.26

.15

.20

.43

.44

.44 3.26

.00 10.61 8-12 64 10 1

3 4

6 19 37 57 28 11 20 46 74 38 236 0

654 (1) 2.72

.42

.04

.13

.17

.25

.81 1.57 2.42 1.19

.47

.85 1.95 3.14 1.61 10.02

.00 27.77 (2)

.80

.13

.01

.04

.05

.08

.24

.46

.72

.35

.14

.25

.58

.93

.48 2.96

.00 8.21 13-18 14 1

0 0

0 3

28 4

-3 3

24 33 14 70 0

197 (1)

.59

.04

.00

.13 1.19

.17

.13

.13 1.02 1.40

.59 2.97

.00 8.37 (2)

.18

.01

.00

.04

.35

.05

.04

.30

.41

.18

.88

.00 2.47 19-24 1

0 0

0 4

0 0

0 2

5 3

2 0

17 (1)

.04

.00

.17

.00

.08

.21

.13

.08

.00

.72 (2)

.01

.00

.05

.00

.03

.06

.04

.03

.00

.21 GT 24 0

0 0

0 1

2 0

3 (1)

.00

.04

.08

.00

.13 (2)

.00

.01

.03

.00

.04 ALL SPEEDS 252 83 41 44 85 98 214 211 160 65 34 48 122 158 112 628 0

2355 (1) 10.70 3.52 1.74 1.87 3.61 4.16 9.09 8.96 6.79 2.76 1.44 2.04 5.18 6.71 4.76 26.67

.00 100.00 (2) 3.16 1.04

.51

.55 1.07 1.23 2.69 2.65 2.01

.82

.43

.60 1.53 1.98 1.41 7.88

.00 29.55 (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

VERMONT YANKEE JAN 09 -

DEC 09 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT WIND DATA STABILITY CLASS F CLASS FREQUENCY (PERCENT)

=

10.84 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

0 0

2

-,()

.12

.00

-. 00

.00

.12

.00

.23 (2)

.01

.00

.01

.00

.03 C-3 55 24 22 17 23 15 37 32 14 14 4

7 7

6 17 39 0

333 (1) 6.37 2.78 2.55 1.97 2.66 1.74 4.28 3.70 1.62 1.62

.-46

.81

.69 1.97 4.51

.00 38.54 (2)

.69

.30

.28

.21

.29

.19

.46

.40

.18

.05

.09

.08

.21

.49

.00 4.18 4-7 45 6

0 5

ý7 14 60 42 21 15 16 16 10 14 28 86 0

385 (1) 5.21

.69

.00

.58

.81 1.62 6.94 4.86 2.43 1.74 1.85 1.85 1.16 1.62 3.24 9.95

.00 44.56 (2)

.56

.08

.00

.06

.09

.18

.75

.53

.26

.19

.20

.13

.18

.35 1.08

.00 4.83 8-12 7

1 0

0 0

1 4

8 9

4 6

9 7

10 8

65 0

139 (1)

.81

.12

.00

.12

.46

.93 1.04

.46

.69 1.04

.81 1.16

.93 7.52

.00 16.09 (2)

.09

.01

.00

.01

.05

.10

.11

.05

.08

.11

.09

.13

.10

.82

.00 1.74 13-18 0

0 0

0 1

4 0

5 (1)

.00

.12

.46

.00

.58 (2)

.00

.01

.05

.00

.06 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 108 31 22 22

.30 30 101 82 45 33 26 32 24 30 54 194 0

864 (1) 12.50 3.59 2.55 2.55 3.47 3.47 11.69 9.49 5.21 3.82 3.01 3.70 2.78 3.47 6.25 22.45

.00 100.00 (2) 1.36

.39

.28

.38

.38 1.27 1.03

.56

.41

.33

.40

.30

.38

.68 2.43

.00 10.84 (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) 42

VERMONT YANKEE JAN 09 -

DEC 09 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT WIND DATA STABILITY CLASS G CLASS FREQUENCY (PERCENT)

=

1.68 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

1 0

0

0.

0 0

1 (1)

.00

.75

.00

.75 (2)

.00

.01

.00

.01 C-3 1

0 1

0 2

2 2

2 4

0 1

2 0

2 1

4 0

24 (1)

.75

.00

.75

.00 1.49 1.49 1.49 1.49 2.99

.00

.75 1.49

.00 1.49

.75 2.99

.00 17.91 (2)

.01

.00

.01

.00

.03

.05

.00

.01

.03

.00

.03

.01

.05

.00

.30 4-7 6

0 1

1 2

4 10 10 4

5 3

4 6

4 10 8

0 78 (1) -4.48

.00

.75

.75 1.49 2.99 7.46 7.46 2.99 3.73 2.24 2.99 4.48 2.99 7.46 5.97

.00 58.21 (2)

.08

.00

.01

.03

.05

.13

.05

.06

.04

.05

.08

.05

.13

.10

.00

.98 8-12 1

1 0

0 0

0 3

2 2

2 1

2 4

2 3

8 0

31 (1)

.75

.00

.00 2.24 1.49 1.49 1.49

.75 1.49 2.99 1.49 2.24 5.97

.00 23.13 (2)

.01

.00

.04

.03

.01

.03

.05

.03

.04

.10

.00

.39 13-18 0

0 0

0 (1)

.00

.00 (2)

.00

.00 19-24 0

0 0

0 (f)

.00

.00 (2)

.00

.00 GT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS 8

1 2

1 4

6 15 15 10 7

5 8

10 8

14 20 0

134 (1) 5.97

.75 1.49

.75 2.99 4.48 11.19 11.19 7.46 5.22 3.73 5.97 7.46 5.97 10.45 14.93

.00 100.00 (2)

.10

.01

.03

.01

.05

.08

.19

.13

.09

.06

.10

.13

.10

.18

.25

.00 1.68 (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) 43

VERMONT YANKEE JAN 09 -

DEC 09 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

0 0

1 0

0 0

1 1

0 0

0 2

0 0

6 (1)

.01

.00

.01

.00

.01

.00

.03

.00

.08 (2)

.01

.00

.01

.00

.01

.00

.03

.00

.08 C-3 201 128 98 91 144 125 202 125 56 35 26 28 31 36 70 153 0

1549 (1) 2.52 1.61 1.23 1.14 1.81 1.57 2.53 1.57

.70

.44

.33

.35

.39

.45

.88 1.92

.00 19.44 (2) 2.52 1.61 1.23 1.14 1.81 1.57 2.53 1.57

.70

.44

.33

.35

.39

.45

.88 1.92

.00 19.44 4-7 251 69 43 45 108 161 362 321 164 66 45 58

78 85 124 580 0

2560 (1) 3.15

.87

.54

.56 1.36 2.02 4.54 4.03 2.06

.83

.56

.73

.98 1.07 1.56 7.28

.00 32.12 (2) 3.15

.87

.54

.56 1.36 2.02 4.54 4.03 2.06

.83

.56

.73

.98 1.07 1.56 7.28

.00 32.12 8-12 244 56 12 14 27 69 120 212 262 67 38 61 182 207 128 654 0

2353 (1) 3;06

.70

.15

.18

.34

.87 1.51 2.66 3.29

.84

.48

.77 2.28 2.60 1.61 8.21

.00 29.52 (2) 3.06

.70

.15

.18

.34

.87 1.51 2.66 3.29

.84

.48

.77 2.28 2.60 1.61 8.21

.00 29.52 13-18 116 9

3 2

2 11 4

25 148 17 7

19 133 224 129 290 0

1139 (1) 1.46

.11

.04

.03

.14

.05

.31 1.86

.21

.09

.24 1.67 2.81 1.62 3.64

.00 14.29 (2) 1.46

.11

.04

.03

.14

.05

.31 1.86

.21

.09

.24 1.67 2.81 1.62 3.64

.00 14.29 19-24 35 0

0 0

1 3

2 0

26 2

0 0

51 52 40 93 0

305 (1)

.44

.00

.01

.04

.03

.00

.33

.03-

.00

.64

.65

.50 1.17

.00 3.83 (2)

.44

.00

.01

.04

.03

.00

.33

.03

.00

.64

.65

.50 1.17

.00 3.83 GT 24 7

0 0

0 1

0 0

2 17 31 0

58 (1)

.09

.00

.01

.00

.03

.21

.39

.00

.73 (2)

.09

.00

.01

.00

.03

.21

.39

.00

.73 ALL SPEEDS 855 262 156 153 282 369 690 684 658 187 116 166 477 606 508 1801 0

7970 (1) 10.73 3.29.1.96 1.92 3.54 4.63 8.66 8.58 8.26 2.35 1.46 2.08 5.98 7.60 6.37 22.60

.00 100.00 (2) 10.73 3.29 1.96 1.92 3.54 4.63 8.66 8.58 8.26 2.35 1.46 2.08 5.98 7.60 6.37 22.60

.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) 44

APPENDIX A SUPPLEMENTAL INFORMATION Facility: Vermont Yankee Nuclear Power Station Licensee: Entergy Nuclear Vermont Yankee 1A.

ODCM DOSE AND DOSE RATE LIMITS -

ODCM Controls Dose Limit

a.

Noble Gases 3/4.3.1 3/4.3.1 3/4.3.2 3/4.3.2 3/4.3.2 3/4.3.2 Total body dose rate Skin dose rate Gamma air dose Gamma air dose Beta air dose 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 in Particulate Form With

b.

Iodine-131, Iodine-133, Tritium and Radionuclides 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 3/4.2.2 3/4.2.2 3/4.2.2 Total body dose Total body dose Organ dose 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 Sum 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 ptCi/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 1B and the totals of Table IA. The error involved in these steps may be approximately +/-23 percent.

b.

Iodines 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-13 1, 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 I

Prior to issuing the permit to burn 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 burn 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

(.tCi/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

1) In 2009 there was a continuous release (3rd and 4th quarters) due to an undetected leak from a subsurface structure. The leak condition was identified through monitoring well data in January 2010.

2) For 2009, the total Tritium radioactivity conservatively estimated to be released to the Connecticut River is 0.40 Curies. No other plant-related radionuclides were detected in ground water.

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 of radioactive 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 of the 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

APPENDIX E Requirement:

Response

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) of 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-1

APPENDIX F 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 2009., 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-i

APPENDIX G PROCESS CONTROL PROGRAM Requirement:

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.

Response

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

G-1

APPENDIX H OFF-SITE DOSE CALCULATION MANUAL Requirement:

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.

Response

H-1

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

Response

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

I-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 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 were two on-site disposal spreading activities of contaminated soil and cooling tower silt during the reporting year - one in June and one in October.

The total volume of soil and silt spread in 2009 was 387 cubic yards. The total activity spread on the 1.9 acres (southern) on-site disposal field from 2009 spreading and from previous years was as follows:

Radionuclide Mn-54 Co-60 Zn-65 Cs-134 Cs-137 Activity Spread in 2009 2.03E-06 6.72E-06 2.57E-06 O.OOE+00 2.OOE-05 Activity from 2009, Plus Activity from All Past Disposals Decayed to 10/19/2009 (Ci) 1.52E-06 2.07E-05 1.76E-06 5.01E-09 8.61E-05 The maximum organ dose from all past spreading operations, including the material spread in 2009, totaled 1.44E-01 mrem/year. These calculated values are within the 1 mrem/year limit applied during the period of operational control of the site. The projected hypothetical dose for the period following the loss of operational control of the site area due to all spreading operations to-date is 5.23E-01 mrem/year versus a 5 mrem/year dose limit.

J-1

BVY 10-030, Radioactive Effluent Release Report

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BVY 10-030, Radioactive Effluent Release Report

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