ML20205A174
| ML20205A174 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee  |
| Issue date: | 12/31/1998 |
| From: | Sen G VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| BVY-99-39, NUDOCS 9903300313 | |
| Download: ML20205A174 (73) | |
Text
, , - . -
VERMONT YANKEE y NUCLEAR POWER CORPORATION 185 Old Ferry Road, Brattleboro, VT 05301 7002 (802) 257-5271 March 25,1999 BVY 99-39 United States Nuclear Regulatory Commission ATTN: Document Control Desk Washington,DC 20555
Subject:
Vermont Yankee Nuclear Power Station License No. DPR-28 (Docket No. 50-271) 1998 Vermont Yankee Annual Radioactive Effluent Release Report Pursuant to Vermont Yankee Technical Specification 6.7.C.1 and 10CFR50.36a(a)(2), attached is the subje:! report.
We trust that the information providad is acceptable; however, should you have any questions, please contact Mr. David P. Tkatch at 802-258-5500.
Sincerely, l
VERMONT YANKIE NUCLEAR POWER CORPORATION
/
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Tsautam Sen / l Licensing Manager Attachment cc: USNRC Region 1 Administrator USNRC Resident Inspector-VYNPS
/
/ l USNRC Project Manager- VYNPS Vermont Department of Public Service Massachusetts Metropolitan District Commission Massachusetts Department of Public Health Vermont Division of Occupational and Radiological Health -
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I ANNUAL RADIOACTIVE EFFLUENT I RELEASE REPORT FOR 1998 I
C Vermont Yankee Nuclear Power Station I - _ - . _
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i TABLE OF CONTENTS Pace INTRODUCTION...............................................................................................................................I l DATATABLES........................................................................................................................2-31 APPENDIX A " Supplemental Information for 1998"............................................... ..................... A- 1
- APPENDIX B " Liquid Holdup Tanks" ............... ..... ............... ....... ................ ......... ... ......... ....... .B- 1 APPENDIX C " Radioactive Liquid Effluent Monitoring Instrumentation................................ . ..C-1 APPENDIX D " Radioactive Gaseous Effluent Monitoring Instrumentation............ ..................... D-1 l APPENDIX E " Radiological Environmental Monitoring Program............................... ... .. . .. .E-1 AP PENDIX F " Land Use Ce nsu s . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . .. . . .. . . .. .. . ... .. .. . ..
APPENDIX G " Process Ce ntrol Program ..................... .. ................... . ... ............................ ..... G- 1 i
APPENDIX H "O ff-Site Dose Calculation Manual ..... .......... ... . . ................... ............... ..... .... H- 1 APPENDIC I " Radioactive Liquid, Gaseous, and Solid Waste Treatment Systems ....... ....... ........I-1 1
APPENDIX J "On-Site Disposal of Septic Waste and Cooling Tower Silt .... .................................J-1 1 I
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Dowemamne JasonT Emwm & Wasu DepowJ Annual Reportdir *5*
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I LIST OF TABLES i
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Table Ti11c Eage !
I IA Gaseous Effluents - Summation of all Releases .................. ............ ........ ............ ...... 2 i
1B Gaseous Effluents - Elevated Releases .......... ............ ............................ ...... . . ....4 1C Gaseous Effluents - Ground Level Releases .... ... ................................................... .... 6 1D Gaseous Effluents - Nonroutine Releases ............................. ..................... ................ 8 2A Liquid Effluents - Summation of All Releases.. .. .......................... ..................... ...... 9 2B Liquid Effluents - Nonroutine Releases................................ ........................... ......... 10 3 Solid Waste and Irradiated Fue1 Shipments . ..................................... ...... ...... .. ..... . I 1 4 Maximum Off-Site Doses and Dose Commitments to Members of the Public......... ..15 5A 1998 Meteorological Data Joint Frequency Distribution 297 ft. Wind Data - Stability Class A .. . ...... .. ........................ ..... .. .... . ........... .. ..... 16 SD 1998 Meteorological Data Joint Frequency Distribution 297 ft. Wind Data - Stability Class B .................. ..................... ..... .......................... 17 SC 1998 Meteorological Data Joint Frequency Distribution 297 ft. Wind Data - Stability Class C .......... ............................. ... ............................. I 8 SD 1998 Meteorological Data Joint Frequency Distribution 297 ft. Wind Data - Stability Class D . ................. ................................ ............. . .. . . 19 I SE 1998 Meteorological Data Joint Frequency Distribution 297 ft. Wind Data - Stability Class E................ .......... .............................. .............. 20 SF 1998 Meteorological Data Joint Frequency Distribution 297 ft. Wind Data - Stability Class F.................................... ......... ........ ... .... .. . ... 21 5G 1998 Meteorological Data Joint Frequency Distribution 297 ft. Wind Data - Stability Class G ... ........ ............ .. ............ ..... ....... ..... ....... . 22 SH 1998 Meteorological Data Joint Frequency Distribution I 6A 297 ft. Wind Data - Stability Class All . ............. ...................................... ...... ... .... 23 1998 Meteorological Data Joint Frequency Distribution 35 ft. Wind Data - Stability Class A ..... ............................. ................ ....... .......... . . 24 6B 1998 Meteorological Data Joint Frequency Distribution 35 ft. Witid Data - Stability Class B ..... ..... ..... . .............. .................. ..................... 25 I 6C 1998 Meteorological Data Joint Frequency Distribution 35 ft. Wind Data - Stability Class C ........................... ................. .......... ........... .. . 26 6D 1998 Meteorological Data Joint Frequency Distribution 35 ft. Wind Dat a - Stability Class D ..... .. ......... ......................... .. .. ...... ... ...... ......... . 27 I maa-vww ww w um -ii-I .
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I L}ST OF TABLES (Continued)
Table Iitic P.agg I 6E 1998 Meteorological Data Joint Frequency Distribution 35 ft. Wind Data - Stability Class E..... ... ............................. .. ............. ....... .... .... 28 6F 1998 Meteorological Data Joint Frequency Distribution 3 5 ft. Wind Data - Stability C.c s F ........ ........ .. ...... ... ..... ....... . ..... ......... .... . .. . . .. .. . ... . 29 6G 1998 Meteorological Data Joint Frequency Distribution 35 ft. Wind Data - S t ability Clas s G ... . . ... ...... .. ..... ... .... .. . ... .... .. ..... . ... .............. .. . .. . ... 3 0 6H 1998 Meteorological Data Joint Frequency Distribution 35 ft. Wind Data - Stability Class All .......... .. . ... . .... .. .. ................................ ...... 31 I
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r 1998 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT VERMONT YANKEE NUCLEAR POWER STATION I INTRODUCTION In accordance with 10CFR50.36a and Technical Specification 6.7.C.1, this repon fulfills Vermont Yankee's commitment to submit to the Nuclear Regulatory Commission (NRC) an annual report that covers the content of radioactive effluents released to unrestricted areas during the previous calendar year of operation. This repon includes a summary of the quantities of radioactive liquid and gaseous I effluents and solid waste released from the plant using the outline provided in Appendix B of Regulatory Guide 1.21, revision 1 (June 1974), " Measuring, Evaluating and Reporting Radioactive Materials in Solid Wastes and Releases of Radioactive Materials in Liquids and Gaseous Effluents from Light Water Cooled Nuclear Power Plants." In addition, meteorological data collected over the previous year is also provided in the form ofjoint frequency distributions of wind speed, wind direction, and atmospheric stability.
The report also includes summaries of any unplanned radioactive releases from the site or excess liquid radioactive materials found in outside storage tanks, a listing of any inoperable (greater than 30 days) gaseous or liquid effluent monitoring instrumentation, changes made in the REMP milk sampling and any changes made to the Off-Site Dose Calculation Manual (ODCM) (including those from the annual i land use census), or Process Control Program (PCP).
A supplemental report that includes an assessment of radiation doses due to the radioactive liquid and gaseous effluents (including direct radiation) released from the plant during the previous calendar year I will be filed separately with the NRC within 180 days of January 1.
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I TABLE 1A Vermont Yankee Annual Radioactive Effluent Release Report First and Second Ouarters.1998 Gaseous Effluents - Summation of All Releases E)
B Estlotal Unit Quartu Quarta 1 2 Error. %
A. Fission and Activation Gases I. Total release Ci 2.10E+01 5.32E-01 s 2.30E+01
- 2. Average release rate for period pCi/sec 2.67E+00 6.77E-02
- 3. Percent of Tech. Spec. limit % (1) (1)
B. Iodines
- 1. Total Iodine-131 Ci 1.16E-04 7.49E-06 e 1.80E+01
- 2. Average release rate for period 'pCi/sec 1.48E-05 9.53E-07
- 3. Percent of Tech. Spec. limit (2) % (1) (1)
C. Particulates
- 1. Particulates with T-1/2 > 8 days Ci 8.41E-05 5.22E-05 1.80E+01
- 2. Average release rate for period pCi/sec 1.07E-05 6.64E-06
- 3. Percent of Tech. Spec. limit (3) % (1) (1)
- 4. Gross alpha radioactivity Ci 3.14E-06 1.55E-06 D. Tritium l l
- 1. Total release Ci 6.86E+00 2.76E+00 21.80E+01
- 2. Average release rate for period pCi/sec 8.73E-01 3.51E-01
- 3. Percent of Tech. Spec. limit % (1) (1)
(1) Percent of Technical Specification limit is a dose based value which will be provided in the !
Supplemental Effluent and Waste Disposal Report to be submitted per Technical l Specification 6.7.C.1 l
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TABLElA (Continued)
Vermont Yankee Annual Radioactive Effluent Release Renort Third and Fourth Ouarters.1998 Gaseous Effluents - Summation of All Releases Quarter Quana Est. Tomi Unit 4 Error, %
3 A. Fission and Activation Gases
- 1. Total release Ci 0.00E+00 2.44E-01 t 2.30E+01 6 2. Average release rate for period pCi/sec 0.00E+00 3.10E-02
- 3. Percent of Tech. Spec. limit % 0.00E+00 (1)
B. Todines 9.05E-05 1.80E+01 I
- 1. Total Iodine-131 Ci 5.94E-05
!E 2. Average release rate for period pCi/sec 7.56E-06 1.15E-05 1
! 3. Percent of Tech. Spec. limit % (1) (1)
E C. Particulates
- 1. Particulates with T 1/2 > 8 days Ci 1.93E-04 3.71E-05 21.80E+01
- 2. Average release rate for period pCi/sec 2.46E-05 4.72E-06 1 \
! 3. Percent of Tech. Spec. limit % (1) (1)
- 4. Gross alpha radioactivity Ci 3.48E-06 2.47E-06 D. Tritium f
- 1. Total release Ci 6.79E+00 5.92E+00 - 1.50E+01
- 2. Average release rate for period Ci/sec 8.64E-01 7.53E-01 l l
- 3. Percent of Tech. Spec. limit % (1) (1) _-
(1) Percent of Technical Specitication limit is a dose based value which will be provided in the Supplemental Effluent and Waste Disposal Report to be submitted per Technical I Specification 6.7.C.1 I
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TABLEIB Vermont Yankee Annual Radioactive Effluent Release Reoort First and Second Ouarters.1998 Gaseous Effluents - Elevated Releases Continuous Mode Batch Mode (l) l Quarter Quarter Quarter l Nuclides Released Unit 1 2 1 2
- 1. Fission Gases Krypton-85 Ci ND ND Krypton-85m Ci 3.25E-01 1.12E-02 Krypton 87 Ci 5.45E-02 ND Krypton-88 Ci ND ND Xenon-133 Ci 1.54E+01 3.48E-01 Xenon-133m Ci 5.86E-01 ND Xenon 135 Ci 4.42E+00 1.09E-01 Xenon 135m Ci 2.64E-01 6.41E-02 1 Xenon-138 Ci ND ND Unidentified Ci ND ND Total for Period Ci 2.10E+01 5.32E-01 0.00E+00 0.00E+00 i 2. Iodines Iodine-131 Ci 1.16E-04 7.49E-%
- Iodine-133 Ci ND 1.13E-04 Jodine-135 Ci ND ND Total for Period Ci 1.16E-04 1.20E-04 0.00E+00 0.00E+00
- 3. Particulates Strontium-89 Ci 9.00E-M ND Strontium-90 Ci ND ND Cesium-134 Ci ND ND 1 Cesium-137 Ci 4.99E-06 4.65E-06 Barium-Lanthanum-140 Ci ND ND ;
Manganese-54 Ci 4.40E-06 7.30E-06 )
I
- Chromium-51 Ci 2.64E-05 ND Cobalt-58 Ci ND ND Cobalt-60 Ci 3.93E-0.5 2.70E-05 Cerium 141 Ci ND ND Zine-65 Ci ND ND Total for Period Ci 8.41E-05 3.90E-05 0.00E+00 0.00E+00 (1) '!here were no batch mode gaseous releases for this reporting period.
ND - Not detected at the plant stack.
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TABLEIB j (Continued) l Vermont Yankee I Annual Radioactive Efnuent Relena Ecoort Third and Fourth Ouarters.1998 Gaseous Effluents - Elevated Releases Continuous Mode Batch Mode (l)
Quarter Quarter Quarter i Nuclides Released Unit 3 4 3 4
- 1. Fission Gases I Krypton-85 Krypton-85m Ci Ci ND ND ND ND ND I
Krypton-87 Ci ND l Krypton-88 Ci ND ND Xenon-133 Ci ND ND l Xenon-133m Ci ND ND Xenon-135 Ci ND 2.44E-01 Xenon 135m Ci ND ND l Xenon-138 Ci ND ND Unidentified Ci ND ND Total for Period Ci 0.00E+00 2.44E+-01 0.00E+00 0.00E+00
- 2. Iodines Ci 5.94E-05 9.05E-05 lg Iodine-131 l3 lodine-133 Ci 2.02E-04 2.27E-04 lodine-135 Ci ND ND Total for Period Ci 2.61E-04 3.18E-04 0.00E+00 0.00E+00
- 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 1.80E-04 3.71E-05 CoTalt-58 Ci ND ND I Cobalt-60 Cerium-141 Ci Ci ND ND ND ND Zine 65 Ci 1.25E-05 ND Total for Period Ci 1.93E-04 3.71E-05 0.00E+00 0.00E+00 (1) There were no batch mode gaseous releases for this reporting period.
ND- Not detected at the plant stack.
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TABLEIC l Vermont Yankee !
Annual Radioactive Effluent Release Renort First and Second Ouarters.1998 Gaseous Effluents - Ground Level Releases ,
Continuous Mode Batch Mode (l)
Quarter Quarter Quarter Nuclides Released Unit 1(1) 2(2),(3) 1(1) 2(1)
- 1. Fission Gases Krypton-85 Ci ND Krypton-85m Ci ND Krypton-87 Ci ND Krypton-88 Ci ND Xenon-133 Ci ND
.I Xenon-135 Ci ND Xenon-135m Ci ND Xenon-138 Ci ND Unidentified Ci ND l Total for Period Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 I 2. lodines Iodine-131 Ci ND l
Iodine-133 Ci ND lodine-135 Ci ND Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 I
Total for Period
- 3. Particulates Strontium-89 Ci ND Strontium-90 Ci ND Cesium-134 Ci 9.88E-08 Cesium-137 Ci 4.24E-06 Barium-Lanthanum-140 Ci ND Manganese-54 Ci 6.87E-07 Chromium-51 Ci ND Cobalt-58 Ci ND Cobalt-60 Ci 7.64E-06 Cerium 141 Ci ND Zine-65 Ci 5.55E-07 Iron 55 Cl ND Total for Period Ci 0.00E+00 1.32E-5 0.00E+00 0.00E+00 l
(1) 'Ihere were no ground level gaseous releases of this type for the quarter.
(2) The North Warehouse stack was used as a ground level release point for burning of waste oil.
(3) Buming of waste oil was ueated as a continuous rela se for the second quarter.
ND - Not detected it. .he waste oil sample.
I Doorddata'hu jamesWY F.tduent & Wase Dupoul Annual Report dos -O-l L
TABLEIC (Continued)
Vermont Yankee I Annual Radioactive Effluent Release Reoort Third and Fourth Ouarters.1998 Gaseous Effluents - Ground Level Releases Continuous Mode Batch Mode (l)
Quarter Quarter Quarter Nuclides Released Unit 3(1) 4(1) 3(1) 4(1)
- 1. Fission Gases Krypton-85 Ci Krypton-85m Ci Krypton-87 Ci I Krypton-88 Xenon-133 Ci Ci Xenon-135 Ci Xenon-135m Ci Xenon-138 Ci Unidentified Ci Total for Period Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00
- 2. Iodines Iodine-131 Ci j Iodine-133 Ci Iodine-135 Ci Total for Period Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00
- 3. Particulates j Strontium-89 Ci Strontium-90 Ci Cesium-134 Ci ;
Ci I
Cesium-137' Barium-Lanthanum-140 Ci .
I 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 0.00E+C0 0.00E+00 0.00E+00 0.00E+00 (1) 'Ihere were no ground level gaseous releases for this reporting period.
ND- Not detected in the waste oil sample.
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r 1 TABLEIQ
- Vermont Yankee Annual Radioactive Efnuent Release Report for 1998 i
Gaseous Effluents - Nonroutine Releases There were no nonroutine or accidental gaseous releases during this reporting period. )
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TABLE 2A Vermont Yankee Annual Radioactive Effluent Release Report for 1998 Liquid Effluents - Summation of All Releases There were no liquid releases during this reporting period.
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, for 1998 i 1
l - Liquid Effluents - Nonroutine Releases j There were no nonroutine or accidental liquid releases during this reponing period.
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I TABLE 3 i Vermont Yankee Annual Radioactive Effluent Release Repon First and Second Ouaners.1193 Solid Waste and Irradiated Fuel Shipments A. Solid Waste Shipped Off-Site for Burial or Disposal (not irradiated fuel)
!. Type of Waste I
Shipped from VY for Burial or Disposal Unit s 8 Fo,e Qu
- a. Spent resins, filter sludges, evaporator bottoms, m' Ci None 2.50E+01 etc.
I b. Dry compressible waste, contaminated equipment, etc.
m' Ci None 2.50E+01
- c. Irradiated components, control rods, etc. m' Ci None 2.50E+01 I
Shipped from Processor (s) for Burial or Disposal Unit s 8 F or, Qu
- a. Spent resins, filter sludges, evaporator bottoms, m3 Ci None 2.50E+01 etc.
- b. Dry compressible waste, contaminated equipment, m' Ci 2.lE-1 2.50E+0]
etc.
- c. Irradiated components, control rods, etc. m' Ci 3.37E-5 2.50E+01
- 2. Estimate of Major Nuclide Composition (By Type of Waste) l
- a. Spent resins, filter sludges, evaporator bottoms, etc. b. Dry compressible waste, contaminated equipment, etc.
Isotope Percent (1) Isotope Percent (1)
Zinc-65 N/A Iron-55 % 7.40E+01 Cesium-137 N/A Zine-65 % 2.99E+00 Cobalt-60 N/A Cobalt-60 % 1.23S+01 Cesium-134 N/A Manganese-54 % 4.55E400 Manganese-54 N/A Cesium-137 % 1.21E+00 Irca-55 N/A Chromium-51 % 1.40E+00 Nickel-63 N/A Cerium-144 %1.06E+00 Cerium-144 N/A (1) Includes only those nuclides that are greater than 1% of the total activity.
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g TABLE 3 m (Continued)
, 3. Disposition of Solid Waste Shipments (1st and 2nd Quarters)
=
Destination I No. cf Shipments From VY From Processor Mode of Transportation Processor Burial or Disposal I X Truck MSC Oak Ridge, TN 1 X Truck CNS Inc.
Barnwell, SC 7 X Truck GTS Duratek Oak Ridge, TN B. Irradiated Fuel Shipments (Disposition): None.
C. Additional Data (1st and 2nd Quarters)
Supplemental Information Shipments from Shipments from VY Shipments from Processors VY to Processors for Burial or for Burial or Disposal Disposal Class of Solid Waste Shipped A None A Type of Containers Used Strong Tight None Strong Tight Solidifiestion Agent or Absorbent None None None i
Eq1g: Sections A.1 and A.2 above do not include the data for the waste shipments from VY to the l processors that were not ultimately sent out for burial or disposal in 1998. The data for this waste will be included in the report that covers the year that this waste is shipped from the processo, or VY for burial or disposal.
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TABLE 3 (Continued)
Vermont Yanke.g Annual Radioactive Effluent Release Renort l Third and Fourth Ouarters.1998 Solid Waste and Irradiated Fuel Shipments A. Solid Waste Shipped Off-Site for Burial or Disposal (not irradiated fuel)
,I 1. Type of Waste 3
l Shipped from VY for Burial or Disposal Unit g] t0s 9 8 Fo,c
.g a. Spent resins, filter sludges, evaporator bottoms, m3 Ci None 2.50E+01 g etc.
- b. Dry compressible waste, contaminated equipment, m' Ci None 2.50E+01
- etc.
- c. Ir. iiated components, control rods, etc. m' Ci None 2.50E+01 r
I 3 d 4th E oI ShippM from Processor (s) for Burial or Disposal Unit g((t0s 8 g
- a. Spent resins, filter sludges, evaporator bottoms, m' Ci None 2.50E+01 etc.
- b. Dry compressible waste, contaminated equipment, m' Ci 4.43+00 2.50E+01 etc. 3.2E 42
- c. Irradiated components, control rods, etc. m' Ci None 2.50E+01 l 2. Estimate of Major Nuclide Composition (By Type of Waste)
- a. Spent resins, filter sludges, evaporator bottoms, etc. b. Dry compressible waste, contaminated equipment, etc.
Isotope Percent (1) Isotope Percent (1)
Zine-65 N/A Iron-55 -
% 7.40E+01 Cesium-137 N/A Zine-65 % 2.99E+00 1 Cobalt-60 N/A Cobalt-60 % 1.23E+01 1 N/A Manganese-54 % 4.55E+00 Cesium-134 Manganese-54 N/A Cesium 137 % 1.21E+00 N/A Chromium-51 % 1.40E+00 Iron-55 Nickel-63 N/A Cerium-144 %1.06E+00 Cerium-144 N/A (1) Includes only those nuclides that are greater than 19 of the total activity.
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e-I TABLE 3 l (Continued) {
- 3. Disposition of Solid Waste Shipments (3rd and 4th Quarters)
Destination No. of From VY From Mode of Processor Burial or Shipments Processor Transportation Disposa!
8 X Truck Envirocare Clive, Utah 2 X Truck CNS, Inc.
Barnwell, SC l
'E 1 X Truck MSC g Oak Ridge, TN 5 X Truck GTS Duratek Oak Ridge, TN
.I B. Irradiated Fuel Shipments (Disposition): None. j C. Additional Data (3rd and 4th Quarters)
'N SupplementalInformation Shipments from Shipments from VY Shipments from Processors for VY to Processors for Burial or Disposal Burial or Disposal l
Class of Solid Waste Shipped A None A l
Type of Containers Used Strong Tight None Strong Tight Solidification Agent or Absorbent None None None Eple: Sections A.1 and A.2 above do not include the data for the waste shipments from VY to the l processors that were not ultimately sent out for burial or disposal in 1998. The data for this
- g waste will be included in the report that covers the year that this waste is shipped from the j processor or VY for burial or disposal.
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I TABLE 4 Vermont Yankee Annual Radioactive Effluent Release Report for 1998
]
Maximum Off-Site Doses and Dose Commitments to Members of the Public These doses will be provided in the Supplemental Effluent and Waste Disposal Report to be submitted per Technical Specification 6.7.C.I.
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I TABLE 5A I VERMONT YANKEE JAN 98 - DEC 98 NETEOROLOCICAL DATA JOINT FREQUDICY DISTRIBUTION 297.0 FT WIND DATA STABILITT CLASS A CLASS FREQUENCY (PERCENT) = .44 WIND DIRECTION FROM SPEED N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VRAL TOTAL j MPH i CALM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 C (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 C-3 1 2 1 0 0 4 3 4 0 0 0 0 0 0 0 2 0 15 (1) 2.10 5.41 2.70 .00 .00 10.81 2.70 10.81 .00 .00 .00 .00 00 .00 .00 5.41 .00 40.54 (2) .01 .02 .01 .00 .00 .05 .01 .05 .00 .00 .00 .00 .00 .00 .00 .02 .00 .18 I 4-7 (1)
(2) 0
.00 2.70
.00 .01 1
.00
.00 0
.00
.00 0 0
.00
.00 2
5.41 2.70
.02 .01 1 0
.00
.00
.00
.00 0 0
.00
.00 0
.00
.00
.00
.00 0 0
.00
.00
.00
.00 0 0
.00
.00 5.41 2
.02 0
.00
.00 6
16.22
.07 l
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8-12 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 4 0 6 (1) .00 .00 .00 .00 .00 .00 .00 .00 2.70 .00 .00 .00 .00 2.70 .00 10.81 .00 16.22 .
(2) .00 .00 .00 .00 .00 .00 .00 .00 .01 .00 .00 .00 .00 .01 .00 .05 .00 .07 l 1)-18 0 1 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 4 (1) .00 2.70 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 2.70 .00 2.70 2.70 .00 10.81 I (2) 19-24 (1)
.00
.00 0
.01
.00 0
.00
.00 0
.00 0
.00
.00 0
.00
.00 0
.00
.00
.00 0
.00 0
.00
.00
.00 0
.00 0
.00
.00 0
.00
.00
.00 0
.01 1
.00 2
.01 1
2.70 5.41 2.70 2.70
.01 1
.00 0
.00
.05 5
13.51 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .02 .01 .01 .00 .06 I CT 24 (1)
(2)
.00 0
.C0
.00
.00 0
.00 0
.00 0
.00
.00 0
.00
.00 0
.00
.00
.00
.00 0 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00
.00
.00 0 0
.00
.00 0
.00
.00 0
.00
.00 2.70 1
.01 0
.00
.00 1
2.70
.C1 I
ALL SPEEDS 1 4 1 0 0 6 2 4 1 0 0 0 2 3 2 11 0 37 (1) 2.70 10.81 2.70 .00 .00 16.22 5.41 10.81 2.70 .00 .C0 .00 b.41 8.11 5.41 29.73 .00 100.00 (2) .01 .05 .01 .00 .00 .07 .02 .05 .01 .00 .00 .00 .02 .04 .02 .13 .00 .44 (llePERCENT OF ALL C00D CBSERVATIONS FOR THIS PA0E (2) PERCENT OF ALL GOOD CBSERVATIONS FOR THIS PERIOD I C CAIR (WIND SPEED LESS THAN OR EQUAL TO .95 MPH)
I I
1 I
l I
I l
l h
l -i6-I
_ _ A._ _ ,-
1
!I i
1 TABLESB I
VENT 0NT YANKEE JAN 98 - C'EC SS METEOROLOGICAL DATA JOINT FREQUENCY DISTR 13ttt10N I 297.0 FT WIND DATA STABILITY CLASS 3 CIASS FREQUENCY (PERCINT) =
WIND DIRECTION FRON
.86 I SPEED MPH CALM W NNE 0 0 NE ENE 0 0 E ESE 0 0 SE SSE 0 0 S
0 S$W 0
SW 0
WSW 0
W 0
WNW 0
NW NtM V1BL TOTAL 0 0 0 0
.00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 I
(Il .00 .00 .00 (2) .00 .00 .00 .00 .00 , .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 C.) 0 1 0 1 1 2 1 0 0 0 0 0 0 0 1 0 0 7 (1) .00 1.37 .00 1.37 1.37 2.14 1.37 .00 .00 .00 .00 .00 .00 .00 1.37 .00 .00 9.59 123 .00 .01 .00 .01 .01 .02 .01 .00 .00 .00 .00 .00 .00 .00 .01 .00 .00 .08 47 0 0 0 0 0 1 1 0 0 0 0 0 0 0 2 5 0 9 til .00 .00 .00 .00 .00 1.37 1.37 .00 .00 .00 .00 .00 .00 .00 2.74 6.85 .00 12.33 j (2) .00 .00 .00 .00 .00 .01 .01 .00 .00 .00 .00 .00 .00 .00 .02 .06 .00 .11 0 12 0 21 I
8 12 1 0 0 0 0 1 0 4 1 0 0 1 0 1
- 11) 1.37 .00 .00 .00 .00 1.37 .00 5.48 1.37 .00 .00 1.37 .00 .00 1.37 16.44 .00 28,77 I (2) .01 .00 .00 .00 .00 .01 .00 .05 .01 .00 .00 .01 .00 .00 .01 .14 .00 .25 l 13 18 2 0 0 0 1 1 0 1 3 0 0 0 2 1 4 to 0 25 (1) 2.74 .00 .00 .00 1.37 1.37 .00 1.37 4.11 .00 .00 .00 2.74 1.37 5.48 13.70 .00 34.25 I (2) 19 24 til (2)
.02 0
.00
.00
.00 0
.00
.00
.00
.00 0
.00
.00 0
.00
.00
.01
.00 0
.00
.01 0
.00
.00
.00
.00
.00 0
.01
.00
.00 0
.04 0
.00
.00
.00
.00 0
.00
.00
.00
.00 0
.00 0
.00
.00
.02 0
.01 2
.05 3
.00 2.74 4.11 6.85
.00 .02 .04
.12 5
.06
.00
.00
.00 0
.30 10 13.70
.12 I GT 24 (1)
(2) 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00
.00 0
.00
.00
.00 0 0
.00
.00 0
.00
.00
.00 0
.00 0
.00
.00 0
.00
.00 1.37 1
.01 0
.00
.00 0
.00
.00
.00
.00 0
1.37 1
.01 ALL SPEEDS 3 1 0 1 2 5 2 5 4 0 0 1 2 4 11 32 0 73 I til (2) 4.11 1.37
.04 .01
.00 1.37 2.74 6.85 2.74 6.85 5.48
.00 .01 .02 .06 (1)sPERCENT OF ALL 000D OBSERVATIONS FOR THIS PAGE
.02 (2)ePERCENT OF ALL GOOD 035ERVAT10NS FOR THIS PERIOD
.06 .05
.00
.00
.00 1.37 2.74 5.48 15.07 43.84
.00 .01 .02 .05 .13 .38
.00
.00 100.00
.46 I Ce CA!JE (WIND SPEED LESS THAN OR EQUAL To .95 MPH)
I I
I ;
l
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1
,I E.wameBhar samaWY Ethent & Wuw Onposal Annual Rcron4W *l7" L__
~ -
I TABLE SC I
VERMONT YANEEE JAN 94 - DEC 98 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 PT WIND CATA STABILITY CLASS C CLASS FREQUENOY (PERCDrri n 2.06 WIND DIRECTION FROM I SPEED MPH at 30TE 3(E ENS E h:58 SE SSE $ SSW SW WSW W WNW NW NNW VRSL TOTAL CA1Jt 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 I (18 82)
C-3 (11
.00
.00 1.72 3
.00
.00 1
.57
.00
.00
.00 0
.00
.00
.00 0
.00
.00 1
.57
.00
.00
.00 0
.00
.00 1
.57
.00
.00 1
.57
.00
.00
.00 0
.00
.00
.57 1
.00
.00 0
.00
.00
.00 3
.00
.00
.00 0
.00
.00
.00
.00 0
.00
.00 0
.00
.00
.00 0
.00
.00
.00 0
.00
.00
.00 4.60 8
I (21 .04 .01 .00 .00 .01 .00 .01 .01 .00 .01 .00 .00 .00 .00 .00 .00 .00 .09 4-7 4 . 1 1 1 0 3 4 0 0 0 0 0 0 4 11 0 32 til 2.30 1.72 .57 .57 .57 .00 1.72 2.30 .00 .00 .00 .00 .00 .00 2.30 6.32 .00 18.39 (2) .05 .04 .01 .01 .01 .00 .04 .05 .00 .00 .00 .00 .00 .00 .05 .13 .00 .38 8-12 5 2 1 0 1 1 2 7 7 1 2 0 2 1 3 15 0 50 111 2.87 1.15 .57 .00 .57 .57 1.15 4.02 4.02 .57 1.15 .00 1.15 .57 1.72 8.62 .00 28.74 (2) .06 .02 .01 .00 01 .01 .02 .08 .08 .01 .02 .00 .02 .01 .04 .18 .00 .59 13-18 2 0 0 0 0 1 0 1 5 1 0 1 10 4 10 18 0 53 I (18 (2) 19-24 til 1.15
.02 1.72 3
.00
.00 0
.00
.00
.00
.00 0
.00
.00
.00 0
.00
.00 0
.00
.57
.01
.00 0
.00
.0G 0
.00
.57
.01 0
.00 2.87
.06 0
.00
.57
.01
.00 0
.00
.00 0
.00
.57
.01 1
.57 5.75 2.30 5.75 10.34
.12 0
.05 5
.17
.00 2.87 2.87 6.32 5
.21 11
.00
.00 0
.00 30.46
.63 25 14.37
.00 .00 .00 .00 .00 .00 .01 .00 .06 .06 .00 .30 I
(2) .04 .00 .00 .00 .00 .13 GT 24 1 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 0 6 (1) .57 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .57 1.15 1.15 .00 3.45 (2) .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .02 .02 .00 .07 ALL SPEEDS 18 6 2 1 3 2 6 13 12 3 2 2 12 11 24 57 0 174 til 10.34 3.45 1.15 .57 1.72 1.15 3.45 7.47 6.90 1.72 1.25 1.15 6.90 6.32 13.79 32.76 .00 100.00 :
(23 .21 .07 .02 .01 .04 .02 .07 .15 .34 .04 .02 .02 .14 .13 .28 .57 .00 2.06 filePERCDr* OF ALL C000 OBSERVATIONS FOR THIS PAGE (2). PERCENT OF ALL C000 CBSERVATIONS FOR THIS PERIOD Ca CALM (WIND SPEED LESS THAN OR EQUAL To .95 MPM) a i
I I
I lI
!I
.I I
, _ _ _ . . _ _ _ a s.
- I
TABLESD VERMONT YAhKEE JAN 98 - DEC 98 METEOROLOGICAL DATA JOINT TREQUDICY FISTRIBUTION 297.0 FT WIND DATA STABILITY CLASS D CLASS FREQUDJCY (PERCa2ff) e 49.61 WIND DIRECTION FROM SPEED N NNE NE ENE E ESE SE SSE S $$W SW WSW W WNW NW NNW VRBL TOTAL MPH CAW 1 4 1 0 2 1 0 0 1 0 0 1 0 0 0 0 0 11 til .02 .10 .02 .00 .05 .02 .00 .00 .02 .00 .00 .02 .00 .00 .00 .00 .00 .26 (2) .01 .05 .01 .00 .02 .01 .00 .00 .01 .00 .00 .01 .00 .00 .00 .00 .00 .13 C-3 63 45 48 25 38 50 71 62 50 15 18 12 7 19 23 56 0 602 (1) 1.50 1.07 1.14 .60 .90 1.19 1,69 1.48 1.19 .36 .43 .29 .17 .45 .55 1.33 .00 14.34 (2) .74 .53 .57 .30 .45 .59 .84 .73 .59 .18 .21 .14 .08 .22 .27 .66 .00 7.11 4-7 126 37 29 18 40 59 129 137 110 22 18 20 11 23 32 188 0 999 l
(1) 3.00 .88 .69 .43 .95 1.41 3.07 3.26 2.62 .52 .43 .48 .26 .55 76 4.48 .00 23.79
.13 I
(2) 1.49 .44 .34 .21 .47 .70 1.52 1.62 1.30 .26 .21 .24 .27 .38 2.22 .00 11.80 8-12 146 58 28 13 24 48 67 131 251 44 32 29 46 75 76 240 0 1308 (1) 3.48 1.38 .67 .31 .57 1.14 1.60 3.12 5.98 1.05 .76 .69 1.10 1.79 1.81 5.72 .00 31.15 (2) 1.72 .69 .33 .15 .28 .57 .79 1.55 2.97 .52 .38 .34 .54 .89 .90 2.84 .00 15.45 I 13-18 (1)
(2) 135 3.22 1,59 26
.62
.31
.21
.11 9 15
.36
.18
.14
.07 6 to
.24
.12 12
.29
.14 19
.45
.22 83 1.98
.98 28
.67
.33 13
.31
.15 15
.36
.38 41 118 106 260 1.12 2.81 2.52 6.19
.56 1.39 1.25 3.07 0
.00
.00 21.48 10.66 902 19-24 37 1 1 1 1 1 0 0 13 8 4 3 12 55 49 127 0 313 I (11 (2) 07 24 (1)
.88
.44
.01 2
.02
.01
.00 0
.02
.01
.00 0
.02
.01
.00 0
.02
.01
.00 0
.02
.01 9
.00
.00
.00 0
.00
.00
.00 0
.00
.31
.15
.02 1
.19
.09 1
.02
.10
.05 0
.00
.07
.04
.00 0
.29
.14 3
.07 1.31 1.17 3.02
.65 10
.24
.58 1.50 7
.17 40
.95
.00
.00 0
.00 7.45 3.70 64 1.52 I
(2) .02 .00 .00 .00 .00 .00 .00 .00 .01 .01 .00 .00 .04 .12 .08 .47 .40 .76 ALL SPEEDS 510 171 116 72 111 169 279 349 509 118 85 80 lia 300 293 911 0 4199 (1) 12.15 4.07 2.76 1.71 2.64 4.02 6.64 8.31 12.12 2.81 2.02 1.91 3.00 7.14 6.98 21.70 .00 100.00 (2) 6.03 2.02 1.37 .85 1.31 2.00 3.20 4.12 6.01 1.39 1.00 .95 1.49 3.54 3.46 10.16 .00 49.61 I (1)ePERCD*r CF ALL C00D CBSERVATIONS FOR THIS PACE (2)=PERCl2(T OF ALL GOOD CBSERVATIONS FOR THIS PERIOD Ce CA M (WIND SPEED LESS THAN OR EQUAL TO .95 MPH) l l
I t
I l
l Ewenu wvyrm As Dw A aRw.c _ _ .. _ _ _ _
- TABLE 5E l
VERHONT TANKEE JAN 98 = DEC 98 METEORO14GICAL DATA JOINT FREQUENCY DISTRIBiff!ON I 291.0 FT WIND DATA STABILITY CIASS E CIASS FREQUENCY (PERCENT) = 31.75 WIND DIRECTION FROM i
I
! FPEED N NNE NE ENE E EN ' SE SSE S SSW SW WSW W WNW WW NNW VRBL TOTAL l MPH l 1
CAIJE 4 4 4 4 4 0 0 0 0 1 1 0 1 1 2 1 0 27 (1) .15 .15 .15 .25 .15 .00 .00 .00 .00 .04 .04 .00 .04 .04 .07 .04 .00 1.00
- (2) .05 .05 .05 .05 .05 .00 .00 .00 .00 .01 .01 .00 .01 .01 .02 .01 .00 .31
- l l
C-3 ill 51 51 59 58 74 96 62 36 17 11 15 12 21 40 95 0 811 til 4.21 1.90 1.90 2.20 2.15 2.75 3.57 2.31 1.34 .63 .41 .56 .45 .78 1.49 3.54 .00 30.18 (2) 1.34 .60 .60 .10 .69 .87 1.13 .73 .43 .20 .13 .18 .14 .25 .47 1.12 .00 9.58 l
- 47 147 25 10 7 29 28 121 108 63 20 16 19 25 24 40 257 0 939
! (18 5.47 .93 .37 .26 1.08 1.04 4.50 4.02 2.34 .74 .60 .71 .93 .89 1.49 9.56 .00 34.95 I (2) 1.14 .30 .22 .08 .34 .33 1.43 1.28 .74 .24 .19 .22 .30 .28 .47 3.04 .00 11.09 i l 8-12 10 8 1 0 3 9 29 44 64 28 20 14 41 48 45 248 0 672 l (1) 2.61 .30 04 .00 .11 .33 1.08 1.64 2.38 1.04 74 .52 1.53 1.79 1,67 9.23 .00 25.01 l (2) .83 .09 .01 .00 .04 .11 .34 .52 .76 .33 .24 .17 .48 .57 .53 2.93 .00 7.94 11-18 23 2 0 0 0 1 4 1 17 13 2 4 25 23 20 78 0 213 til .86 .07 .00 .00 .00 .04 .15 .04 .63 .48 .07 .15 .93 .86 .74 2.90 .00 7.93 (2) .27 .02 .00 .00 .00 .01 .05 .01 .20 .15 .02 .05 .30 .27 .24 .92 .00 2.52
-19 24 2 0 0 0 0 1 0 0 1 0 0 0 2 3 2 14 0 25 (1) .07 .00 00 .00 .00 .04 .00 .00 .04 .00 .00 .00 .07 .11 .07 .52 .00 .93 (2) .02 .00 .60 .00 .00 .01 .00 .00 .01 .00 .00 .00 .02 .04 .02 .17 .00 .30 l' GT 24 0 0 0 0 0 0 0 0 0 0 (a 0 0 0 0 0 0 0 I (1) .00 .00 00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 00 .00 .00 l
ALL SPEEDS 359 90 68 70 94 113 250 215 181 79 50 52 106 120 149 693 0 1687 (1) 13.36 3.35 2.46 2.61 3.50 4.21 9.30 8.00 6.74 2.94 1.86 1.94 3.94 4.47 5.55 25.79 .00 100.00 (2) 4.24 1.06 .78 .53 1.11 1.34 2.95 2.54 2.14 .33 .59 .61 1.25 1.42 1.16 8.19 .00 31.75 (1)sPERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE t (19ePERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD l Ce CALN ININD SPEED LESS THAN OR EQUAL TO .95 MPH)
I I
I I
I E _3___ . _ __ am
r r
I TABLE 5F i l
l l
VERNONT YANKES JAN 98 - DEC 98 EETEOROLOGICAL DATA J0 FT FREQUENCY DISTRIBUTION 5 297.0 PT WIND DATA STABILITY CLASS F CLASS FREQUENCY (PERCENT) e 12.93 WIND DIRECTION FROM l
I I
SPEED w mE st Eur E Est st sst s ssw sw wsw w wNw Nw mw vRaz. TOTat. I MPH CAIJi 3 1 2 0 1 2 0 1 0 0 1 0 1 3 1 1 0 17 (1) .27 .09 .18 .00 .09 .18 .00 .09 .04 .00 .09 .00 .09 .27 .09 .09 .00 1.35 I
i (2) .04 .01 .02 .00 .01 .02 .00 .01 00 .00 .01 .00 .01 .04 .01 .01 .00 .20 j C-1 44 32 29 32 23 31 34 28 18 8 16 11 12 13 29 44 0 404 (1) 4.02 2.93 2.65 2.93 2.10 2.83 3.11 2.56 1.65 .73 1.46 1.01 1.10 1.19 2.65 4.02 .00 36.93 (2) .52 .38 .34 .38 .27 .37 .40 .33 .21 .09 .19 .13 .14 .15 .34 .52 .00 4.77 I 4-7 (1)
(2) 58 5.30
.69 9
.22
.11 6
.55
.07 1
.09
.01 7
.64
.08 22 65 67 34 11 2.01 5.94 6.12 3.11 1.01 1.28
.26 .77 .79 .40 413 14
.17 10
.91
.12 11 17 27 109 1.01 1.55 2.47 9.96
.13 .30 .32 1.29 0
.00
.00 468 42.78 5.53 l
8-12 21 0 0 1 1 2 18 11 12 4 4 8 8 9 15 78 0 192 l
- 41) 1.92 .00 .00 .09 .09 .18 1.65 1.01 1.10 .37 .37 .73 .73 .82 1.37 7.13 .00 17.55 i (2) .25 .00 .00 .01 .01 ' .02 .21 .13 .14 .05 .05 .09 .09 .11 .18 .92 .00 2.27 13 18 0 0 0 0 0 0 0 0 0 2 0 0 3 1 2 5 0 13 l (1) .00 .00 .00 .00 .00 .00 .00 .00 00 .18 .00 .00 .27 .09 18 .46 .00 1.19 I (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .02 .00 .00 .04 .01 .02 .06 .00 .15 19+24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 0; no I CT 24 (1)
(2) 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00
.00
.00 0 0
.00
.00
.00
.00 0 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00 ALL $PEEDS 126 42 37 34 32 57 117 107 64 25 35 29 35 43 74 237 0 1094 I (1) 11.52 3.84 3.38 3.11 2.93 5.21 10.69 9.78 5.85 2.29 3.20 2.65 3.20 3.93 6.76 21.66 (2) 1.49 .50 .44 .40 .38 .67 1.38 1.26 (llePERCENT OF ALL C00D OBSERVATIONS FOR THIS PAGE (2)ePERCENT OF ALL C00D CBSERVATIONS FOR THIS PERIOD 76 .30 .41 .34 .41 .51 .87 2.80
.00
.00 100.00 12.93 Ce CALN (WIND SPEED LESS THAN OR EQUAL TO .95 MPM)
I I
I I
I I
l
.s.___,, A ._ _ R,_ m-
I TABLE SG I VERHQef? TANKEE JAN 98 = DEC 99 METEOR 01DQ1 CAL DATA JOINT FREQUENCY DISTRIBUTION 297.0 FT WIND DATA STA3!LITT Cl*JS 0 CLASS FREQUENCY (PERCENT) e WIND DIRECTION FROM 2.36 SPEED N NNE NE ENE E ESE SE $$E $ SSW $W WSW W WWW NW NNW VRBL TOTAL MPH l
CMR 0 0 0 0 2 0 1 2 0 0 0 0 0 0 0 0 0 5 i I
til .00 .00 .00 .s 1 1.00 .00 .50 1.00 .00 .00 .00 .00 .00 .00 .00 .00 .00 2.50 (2) .00 .00 .00 .00 .02 .00 .01 .02 .00 .00 .00 .00 .00 .00 .00 .00 .00 .06 C3 8 7 3 2 5 3 6 1 4 0 2 1 4 7 1 4 0 SS (18 4.00 3.50 1.50 1.00 2.50 1.50 3.00 .50 2.00 .00 1.00 .50 2.00 3.50 .50 2.00 .00 29.00 (23 .09 .08 .04 .02 .06 .04 .07 .01 .05 .00 .02 .01 .05 .08 .01 .05 .00 .69 47 4 0 4 0 2 3 9 14 13 9 6 4 3 5 5 t 0 et i (1) 2.00 .00 2.00 .00 3.00 1.50 4.50 7.00 6.50 4.50 3.00 2.00 1.50 2.50 2.50 4.00 .00 44.50 I (2) .05 .00 .05 .00 .02 .04 .11 .17 .15 .11 .07 .05 .04 .06 .06 .09 .00 1.05 0 12 6 0 46 I
1 0 0 0 0 0 4 5 5 4 1 4 9 2 5 (1) .50 .00 .00 .00 .00 .00 2.00 2.50 2.50 2.00 .50 2.00 3.00 4.50 1.00 2.50 .00 23.00 (2) .01 .00 .00 .00 .00 .00 .05 .06 .04 .05 .01 .05 .07 .11 .02 .06 .00 .54 13 18 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 2 (1) .00 .00 .00 .00 .00 .00 .00 .00 .50 .00 .00 .00 .50 .00 .00 .00 .00 1.00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .01 .00 .00 .00 .01 .00 .00 .00 .00 02 19 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 l (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 I .
CT 24 (1)
(2)
ALL SPEEDS 13 0
.00
.00 0
.00
.00 7
0
.00
.00 7
.00
.00 0
2
.00
.00 0
9 0
.00
.00 6
0
.00
.00 20 0
.00
.00 22
.00
.00 0
23 0
.00
.00 13
.00
.00 0
9 0
.00
.00 9
0
.00
.00 14 0
.00
.00 21 0
.00
.00 8
0
.00
.00 17 0
.00
.00 0
.00 200 0
.00 6.50 3.50 3.50 1.00 4.50 3.00 10.00 11.00 11.50 6.50 4.50 4.50 7.00 10.50 4.00 8.50 .co 100.00 I
til l (2) .15 .08 .00 .02 .11 .07 .24 .26 .27 .15 .11 .11 .17 .25 .09 .30 .00 2.36 I (13ePERCINT OF ALL C000 CSSERVATIONS FOR THIS PAGE 121= PERCENT OF ALL C000 CSSERVATIONS FOR THIS PERIOD Ce CAIJS (WIND SPEED LESS THAN OR EQUAL TO .95 MPHI l
1 I l l
l l
l lI j l l
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l l t
c.
EAeonMasa@iuerJameeVYD&cm A Waaw Duposal Annual Rcroftdoc * '* $
d- ~
I I
TABLESH YEPJt0NT TANKEE JAN 98 - DEC 98 NETEOROLOGICAI. DATA .TOINT FREQUDCY DISTR 18t?T10N 297.0 FT WIND DATA STABILITY CIASS ALL CLASS FREQUmCY (PERC mTl = 100.00 WIND CIRECTION FRON SPEED N IOfE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VRBL TOTAL l MPN CALM 8 9 7 4 9 3 1 3 1 1 2 1 2 4 3 2 0 60 (1) .09 .11 .08 .05 .11 .04 .01 .04 .01 .01 .02 .01 .02 .05 .04 .02 .00 .71
,I (2)
C-3 til
.09 .11 .08 .05 .11 232 139 132 119 126 164 210 158 108
.04 .01 2.74 1.54 1.56 1.41 1.49 1.94 2.48 1.87 1.28
-04 .01 .01 41
.48
.02 47
.56
.01 39
.46
.02 35
.41
.05 60
.71
.04 .02 94 201 1.11 2.37
.00
.00 0
.71 1905 22.51 (2) 2.74 1.64 1.56 1.41 1.49 1.94 2.48 1.87 1.28 .48 .56 .46 .41 .71 1.11 2.37 .00 22.51 I 4-7 (1)
(23 339 4.01 4.01 75
.89
.89 50
.59
.59 27
.32
.32 79 115 329 330 220
.93 1.36 3.89 3.90 2.60
.92 1.36 3.49 3.90 2.60 62
.73 73 54
.64
.64 53
.63
.63 50
.59
.59 69
.82
.82 110 580 1.30 6.85 1.30 6.85
.00
.00 0 2542 30.03 30.03 8-12 244 68 30 14 29 61 120 202 341 81 59 56 103 143 142 602 0 2295 (1) 2.88 .50 .35 .17 .34 .72 1.42 2.39 4.03 .96 .70 .66 1.22 1.69 1.68 7.11 .00 27.11 (2) 2.88 .80 .75 .17 .34 .72 1.42 2.39 4.f3 .96 .70 .66 1.22 1.69 1.68 7.11 .00 27.11 13-18 162 29 d 15 7 13 16 22 109 44 15 20 89 147 143 372 0 1212 (1) 1.91 .34 .11 .18 .08 .15 .19 .26 1.29 .52 .18 .24 1.05 1.74 1.69 4.40 .00 14.32 (2) 1.91 .34 .11 .18 .08 .15 .19 .26 1.29 .52 .18 .24 1.05 1.74 1.69 4.40 .00 14.32 19-24 42 1 1 1 1 2 0 0 14 8 4 4 15 67 60 158 0 378 (15 .50 .01 .01 .01 .01 .02 .00 .00 .17 .09 .05 .05 .18 .79 .71 1.87 .00 4.47 (21 .50 .01 .01 .01 .01 .02 .00 .00 .11 .09 .05 .05 18 .79 .71 1.87 .00 4.47 CT 24 3 0 0 0 0 0 0 0 1 1 0 0 3 12 9 43 0 72 l (1) .04 .00 .00 .00 .00 .00 .00 .00 .01 .01 .00 .00 .04 .14 .11 .51 .00 .85 I (2) .04 .00 .00 .00 .00 .00 .00 .00 .01 .01 .00 .00 .04 .14 .11 .51 .00 .85 !
l ALL SPEEDS 1030 321 229 180 251 358 676 11$ 794 238 181 173 297 502 561 1958 0 8464
! (1) 12.17 3.79 2.71 2.13 2.97 4.23 7.99 8.45 9.38 2.81 2.14 2.04 3.51 5.93 6.63 23.13 .00 100.00 l (2) 12.17 3.79 2.71 2.13 2.97 4.23 7.99 8.45 9.38 2.81 2.14 2.04 1.51 5.93 6.63 23.13 .00 100.00 (13 ePERCDff CF A1.L COOD OSSERVATIONS FOR THIS PAGE (2Be?ERCENT OF ALL GOOD CBSERVATIONS FOR THIS PERIOD I
Ce CALM (WIND SPEED LESS THAN OR EQUAL TO .95 MPM) l lI lI lI I
i Ewndwanas samenVyErmem A wm D.pmi Annus Repondoc I l TABLE 6A TERNotrF YANK 1E JAN 98 - DEC $8 NETEOR0 LOGICAL DATA JOINF FREQUINCY DISTRIBUTICN I 35.0 FT WIND DATA STABILITY CLASS A CLASS FRE0VEh*CY (PERCENT) e WIND c:REeft0N rR0n 2.19 I SPEED NPH CALK N NNE 0 0 NE 0
INE 0
SSW 0
SW WSW 0 0 W
0 WNW 0
NW NHW VRBL TOTAL 0 0 0 0 j j
l (1) .00 .00 .00 .00 .00 .CJ .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 f (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 l l
I C3 2 1 2 3 $ 1 3 2 2 1 1 0 0 0 2 0 0 23 (1) 1.09 .54 1.09 1.43 2.72 .54 .54 1.09 1.09 .54 .54 .00 .00 .00 1.09 .0a .00 12.50 (2) .02 .01 .02 .04 .06 .31 .01 .02 .02 .01 .01 .00 .00 .00 .02 .00 .00 .27 I 4-7 (1)
(2) 14 7.61 1.09
.17 .02 2
.00
.00 0
.00
.00 0
.00
.00 0
.54
.01 1 2 4 1.09 2.17 1.09
.02 .05 .02 2
.00
.00 0
.00
.00 0
.00
.00 0 1
.54
.01 2 7 1.09 3.40 23.91
.02 .08 44
.52 0
.00
.00 79 42.93
.94 I
8-12 10 1 0 0 0 0 0 2 3 3 0 1 4 4 11 32 0 71 (1) 5.43 .54 .00 .00 .00 .00 .00 1.09 1.63 1.63 .00 .54 2.17 2.17 5.98 17.39 .00 38.59 (2) .12 .01 .00 .00 .00 .00 .00 .02 .04 .04 .00 .01 .05 .05 .13 .38 .00 .85 13-18 0 0 0 0 0 0 0 0 0 0 0 0 1 6 4 0 0 11 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .51 3.26 2.17 .00 .00 5.99 (2) .00 .00 .00 .00 .00 .00 .00 .03 .00 .00 .00 .00 .01 .07 .05 .00 .00 .13 19-24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (18 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .02 .00 .00 W 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 l (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 l (2) .00 .00 .G0 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 0r ALL SPEEDS 26 4 2 3 5 2 3 8 7 4 1 1 6 12 24 76 0 164 i I (1) 16.13 2.17 1.09 1.63 2.72 1.09 1.63 4.35 3.80 2.17 (2) .31 .05 .02 .04 .06 .02 (1)mPERCENT OF ALL C00D OBSERVATIONS FOR THIS PAGE (2)ePER ENT OF ALL 000D CSSERVATIONS FOR THIS PERIOD
.04 .10 .08 .05
.54
.01
.54 3.26 6.52 13.04 41.30
.01 .07 .34 .29 .90
.00
.00 100.00 2.19 l
l l
Cs CALM (WIND SPEED LESS TRAN OR EQUAL TO .95 MPH) s 1
i l
I
I TABLE 6B
.I VERM0!rt YANKEE JAN 98 - DEC 98 NETEOR0 LOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIntD DATA STABILITY CLASS B CLASS FREQUENCY (PERCENT) e 2,12 WIND DIRECTION FROM I SPE*D MPH CALM W NNE 0 0 NE 0
ENE 0
0 SSW 0
SW WSW 0 0 W
0 WNW 0
NW NNW VRSL TOTAL 0 C 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 C-3 5 2 2 2 0 2 0 0 1 0 0 0 1 0 2 3 0 20 (1) 2.81 1.12 1.12 1.12 .00 1.12 .00 .00 .56 .00 .00 .00 .56 .00 1.12 1.69 .00 11.24
.06 .02 .02 .00 .00 .00 .01 .00 .00 .00 .01 .00 .02 .04 .00 .24 I
(2) .02 .02 4-7 16 2 3 1 1 2 3 15 4 1 1 1 1 2 6 18 0 77 (1) 8.99 1.12 1.69 .56 .56 1.12 1.69 8.43 2.25 .56 .56 .56 .56 1.12 3.37 10.11 .00 43.26 (2) .19 .02 .04 .01 .01 .02 .04 .18 .05 .01 .01 .01 .01 .02 .07 .21 .00 .92 I 8-12 (1)
(2) 13 1.30 1.12
.15 .02 2
0
.00
.00 0
.00
.00 0 0
.00
.00 0
.00
.00 0
.00
.00 0
.01 1
0
.04 5
.56 2.81 1.12
.02 2
0 1
.5C
.01 0
.05 4
0
.04 3
1
.07 6
5 5
2.25 1.69 3.37 2.81 11.24
.06 8
20
.24 0
.00
.00 0
0 62 34.83 74 18 13-18 2 0 0 0 0 2 (1) 1.12 .00 .00 .00 .00 .00 .00 .00 1.12 .00 .00 .00 .56 2.81 4.49 .00 .00 10.11 (2) .02 .00 .00 .00 .00 .00 .00 .00 .02 .00 .00 .00 .01 .06 .10 .00 .00 .21 19-24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .56 .00 .00 .56 (2) .00 .00 .00 .00 .00 .s0 .00 .00 .00 .00 .00 .00 .00 .00 .01 .00 .00 .01 CT 24 0 0 0 0 J 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .'O .00 .00 .00 ALL SPEEDS 36 6 5 3 1 4 3 16 12 3 2 5 6 13 22 41 0 178 (1) 20.22 3.37 2.81 1.69 .56 2.25 1.69 8.99 6.74 1.69 1.12 2.81 3.37 7.30 12.36 23.03 .00 100.00 (2) .43 .07 .06 .04 .01 .05 .04 .19 .14 .04 .02 .06 .07 .15 .26 .49 .00 2.12 (1)* PERCENT OF ALL C00D OSSERVATIONS FOR THIS PAGE I (2)* PERCENT OF alt. GOCD OBSERVAT10liS FOR TH'S PERIOD Co CA!Jt (WIND SPEED LESS TRAN OR EQUAL 70 .95 MPM)
I I
I I
I E______ .
TABLE 6C I YERNONT TANKEE JAN 94 - CEC 98 METEOROLOGICAL DATA J0!NT FREQUDiCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CIASS C CLASS FREQUDiCY (PERCENT)
NIND DIRECTION 91 Lost
= 4.20 l
SPEED N NNE NE ENE E ESE SE SS:' t SSW SW WSW N tofW NW 80.*d VR8L TOTAL NPN CALM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 C-3 5 4 5 3 0 3 3 2 1 0 0 3 1 1 2 7 0 40 (1) 1,42 1.13 1.42 .85 .00 .85 .85 .57 .28 .00 .00 .85 .28 .28 .57 1.98 .00 11.33 I .01 (2) .06 .05 .06 .04 .00 .04 .04 .02 .01 .00 .00 .04 .01 .02 ,08 .00 .48 4-7 24 14 1 3 6 12 13 22 19 5 5 4 5 6 9 26 0 174 ,
(1) 6.80 3.97 .28 .85 1.70 3.40 3.68 6.23 5.38 1.42 1.42 1.13 1.42 1.70 2.55 7.37 .00 49.29 l (2) .29 .17 .01 .04 .07 .34 .15 .26 .23 .06 .06 .05 .04 .07 .11 .31 .00 2,07 8-12 20 4 0 0 1 5 0 6 20 5 5 3 7 15 9 14 0 114
.I (1)
(2) 5.67 1.13
.24 .05
.00
.00
.00
.00
.28 1.42
.01 .06
.00 1.70 5.67 1.42 1.42
.00 .07 .24 .04 .06
.45
.04 1.98 4.25 2.55 3.97
.08 .38 .11 .17
.00
.00 32.29 1.36 j
l 13-18 1 1 0 0 0 0 0 0 0 0 1 0 2 9 9 1 0 24 l I (18 .24 .28 .00 .00 .00 .00 .00 .00 .00 .00 .28 .00 .57 2.55 2.55 .28 .00 6.40 l (2) .01 .01 .00 .00 .00 .00 .00 .00 .00 .00 .01 .00 .02 .11 .11 .01 .00 .29 .
I 19-24 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 l til .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .28 .00 .00 .!O .28 l (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .01 .00 .00 .01 07 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 ALL SPEEDS 50 23 6 6 7 20 16 30 40 40 11 10 15 32 29 48 0 353 (1) 14.16 6.52 1.70 1.70 1.98 5.67 4.53 8.50 11.33 2.83 3.12 2.83 4.25 9.07 8.22 13.60 .00 100.00 (2) .60 .27 .07 .07 .08 .24 .19 .34 .48 .12 .13 .12 .18 .38 .35 .57 .00 4.20 (llePERCDr!' OF ALL 0000 CBSERVATIONS FOR THIS PACE 1 (2) PERCDrT OF ALL 000D 08SERVATIONS FOR THIS PERIOD l Ce CAIJt (WIND SPEED LESS THAN OR EQUAL 70 .95 MPN) l l
l I
i l
l E--n un A we uw Rep.==
TABLE 6D 1
VERNONT YANEEE JAJ8 98 - DEC 98 . METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBtrTION 35.0 ET WIND DATA STABILITY CIASS D CLASS FREQUENCY (PERCD"f) e 41.18 l
WIND DIRECTION FROM i l
l l
SPEED II NNE WE ENE E ESE SE SSE S SSW SW WSW W W.W NW NNW VREL TOTAL )
uPu 0 J 0 3 1 0 0 15 l CA1Je 2 1 1 0 2 2 1 0 1 1 '
(1) .06 .03 .03 .00 .06 .06 .03 .00 .00 .00 .03 .00 .09 .03 .00 .03 .00 43 (2) .02 .01 .01 .00 .02 .02 .01 .00 .00 .00 .01 .00 .04 .01 .00 .01 .00 .18 l C-3 98 ?! $1 65 67 57 78 78 64 55 31 29 32 40 17 125 0 1025 I (1) 2.83 2.05 1.45 1.88 1.94 1.65 2.26 2.26 1.85 1.59 .90 .84 .93 1.16 2.23 3.44 .00 29.64 l (2) 1.17 .85 .68 .77 .30 .68 .93 .93 76 .65 .37 .35 .38 .48 .92 1.50 .00 12.21 j 1
4-7 230 91 43 41 60 73 68 144 219 43 26 27 39 45 91 274 0 1514 (1) 6.65 2.63 1.24 1.19 1.74 2.~ 1 1.97 4.16 6.33 1.24 .75 78 1.13 1.30 2.63 7.92 .00 43.78 (2) 2.74 1.08 .51 .49 .71 J7 .81 1.71 2.61 .51 .31 .32 .46 .54 1.08 3.26 .00 18.03 1
8-12 154 40 21 11 7 12 2 11 96 36 16 5 34 108 to 118 0 161 I
-l tt)
(2) 4.45 1.16 1.83 .48
.61
.25
.32
.13
.20
.08
.35
.34
.06
.02
.32 2.78 1.04
.13 1.14 .43
.46
.19
.14
.06
.98
.40 3.12 2.60 3.41 1.29 1.01 1.41
.00
.00 22.01 9.06 i
13-18 15 3 1 0 1 0 0 0 8 6 0 0 5 51 35 10 0 135 (1) .43 .09 .03 .00 .03 .00 .00 .00 .33 .17 .00 .00 .14 1.47 1.01 .29 .00 3.90 (2) .18 .04 .01 .00 .01 .00 .00 .00 .10 .01 .00 .00 .06 .61 .42 .12 .00 1.61 19-26 0 0 0 0 0 0 0 0 0 0 0 0 2 3 3 0 0 8 (al .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .06 .09 .09 .00 .00 .23 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .02 .04 .04 .00 .00 .1,0
- I CT 24 (1)
(21 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00
.00
.00 0
.00 0
.00 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00
.00
.00 0
.00
.00 0 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00
.00
.00 0
alt. SPEEDS 499 206 123 117 137 144 149 233 381 140 74 61 115 248 296 529 0 3458 til 14.43 5.96 3.56 3.38 3.96 4.16 4.31 6.74 11.19 4.05 2.14 1.76 3.33 7.17 8.56 15.30 .00 100.00 (2) 5.94 2.45 1.46 1.39 1.63 1.71 1.77 2.17 4.61 1,67 .38 .73 1.37 2.95 3.52 6.30 .00 4 .18 (llePERCENT OF ALL 000D CSJERVATIONS FOR "'HIS PACE (21ePERCDt? CF ALL GOOD OBSERVATIONS FOR THIS PERIOD Ce CAIJi (WIN 1' SPEED LESS THAN OR EQUAL TO .95 NPH)
I l
E - swy - w0.,amaRe, I l
I ~
I TABLE 6E VEPJt0NT YANKEE JAN 98 - DEC 98 KETEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 ft WIND DATA STA81LITY CLASS E CLASS FREQUENCY (PERCI2C) e 31.26 WIND DIRECTION FROM SPEED N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW WW NNW VR$L TMAL NPit CAIJE 3 8 2 4 3 2 1 4 5 7 2 5 3 4 3 3 0 59 (1) .11 .30 .08 .15 .11 .04 .04 .15 .19 .27 .08 .19 .11 .15 .11 .11 .00 2.25 (2) .04 .10 .02 .05 .04 .02 .01 .05 .06 .08 .02 .06 .04 .05 .04 .04 .00 .70 C-3 103 39 26 34 25 48 52 17 91 113 186 140 149 133 169 214 0 1599
- 11) 3.92 1.49 .99 1.30 .95 1.83 1.98 2.93 3.47 4.30 7.09 5.33 5.68 5.07 6.44 8.15 .00 60.91
- 12) 1.23 .46 .31 .40 .30 .57 .62 .92 1.08 1.35 2.21 1.67 1.77 1.58 2.01 2.55 .00 19.04 47 99 13 3 3 4 16 26 57 91 38 20 21 55 69 102 181 0 798 (1) 3.77 .50 .11 .11 .15 .61 .99 2.17 3.47 1.45 .16 .40 2.10 2.63 3.89 6.90 .00 zw.40 (2) 1.18 .15 .04 .04 .05 .19 .31 .68 1.08 .45 .24 .25 .65 .82 1.21 2.16 .00 9.50 0-12 16 3 0 0 0 2 1 0 16 3 2 3 11 32 36 34 0 159 l (1) .61 .11 .00 .00 .00 .08 .04 .00 .61 .11 .08 .11 .42 1.22 1.37 1.30 .00 6.06 l (2) .19 .04 .00 .00 .00 .02 .01 .00 .19 .04 .02 .04 .13 .38 .43 .40 .00 1.89 i 13-18 2 0 0 0 0 0 0 0 2 0 0 0 0 0 2 4 0 10 1 til .08 .00 .00 .00 .00 .00 .00 .00 .08 .00 .00 .00 .00 .00 .08 .15 .00 .38 l (2) .02 .00 .00 .00 .00 .00 .00 .00 .02 .00 .00 .00 .00 .00 .02 .05 .00 .12 l 19-24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 00 M 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 j (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 i ALL SPEEDS 223 63 31 41 32 68 80 138 205 161 210 169 218 238 312 436 0 2625
. (1) 8.50 2.40 1.18 1.56 1.22 2.59 3.05 5.26 7.81 6.13 8.00 6.44 8.30 9.07 11.89 16.61 .00 100.00 (2) 2.66 75 .37 .49 .38 .81 .95 1.64 2.44 1.92 2.50 2.01 2.60 2.83 3.12 5.19 .00 31.26 (19stERCENT CF ALL C00D OSSERVATIONS FOR THIS PAGE (2) PERCENT CF ALL GOOD O'B1ERVAT10NS FOR THIS PERIOD C= CALM (WIND SPEED LR0% TMAN OR EQUAL TO .95 MPH) l i
I 1
E' "- M N & Waam Nposal Annual Repon dos TABLE 6F VERMONT YANKEE JAN 98 - DEC 98 KETEOR014Q1CA1. DATA JOINT FREQUENCY DISTRIB*JTION 35.0 FT WIND DATA STABILITY C1 ASS F C1 ASS FREQUENCY (PERCENT) e 14.*tt WIND DIRECT 10N FROM SPEED N tofE NE ENE E ESE SE SSE 5 SSW SW WSW W WNW NW NNW VRSL TOTAL MPH CMA 0 0 1 1 3 0 0 1 1 0 2 4 0 4 4 1 0 19 (1) .00 .00 .08 .08 .00 .00 .00 .08 .08 .00 .16 .32 .00 .32 .32 .08 .00 1.53 (2) .00 .00 .01 .01 .00 .00 .00 01 .01 .00 .02 .05 .00 .05 .05 .01 .00 .23 i C-3 22 0 11 0 13 15 !? 30 43 95 248 201 149 117 96 64 0 1134 (1) 1.77 .64 .89 .64 1.05 1.21 1.13 2.42 3.46 7.65 19.97 16.18 12.00 9.42 7.73 5.15 .00 91.30 l (2) .26 .10 .13 .10 .15 .it .17 .36 .51 1.13 2.95 2.39 1.17 1.39 1.14 .76 .00 13.50 i
4-7 5 0 0 0 0 2 1 2 2 4 16 9 4 13 14 12 0 48 I
. (1) .40 .00 .00 .00 .00 .16 .08 .16 .16 54 1.29 .72 .32 1.05 1.13 .97 .00 7.09 !
(2) .06 .00 .00 .00 .00 .02 .01 .02 .02 .10 .19 .11 .05 .15 .17 .14 .00 1.05 0 0 0 0 0 0 0 0 0 0 l I
0-12 0 0 0 0 0 0 1 1 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .08 .00 .00 .00 .08 i (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .40 .00 .00 .01 .00 .00 .00 .01 l 13-18 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 . 0 64 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 l (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 ;
l 19-24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 GT 24 0 0 0 0 0 0 0 0 C 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 ALL SPEEDS 27 8 12 9 13 17 15 33 46 103 266 214 153 135 114 77 0 1242 (1) 2.1~ .64 .97 .72 1.05 1.37 1.21 2.66 3.70 8.29 21.42 17.23 12.32 10.87 9.18 6.20 .00 100.00 (2) .32 .10 .14 .11 .15 .20 .18 .39 .55 1.23 3.17 2.55 1.82 1.61 1.35 .92 .00 14.79 filePERCDir OF M.L 000D OBSERVATIONS FOR TH18 PAGE (2) e PERC11. OF A1.L GOOD OBSERVATIONS FOR THIS PERIOD Ce CALM (WIND SPEED LESS TMN OR EQUAL TO .95 MPHI I
thwedna\Bluw JanusWY Effluent & Wasw Daposal Annual Renon doc y-r I
TABLE 6G VERMONT YAMEEE JAN 98 - DEC 98 KETEOROLOGICA1 DATA JotNT FREQUENCY DISTRI8tfr10N 35.0 FT WIND DATA STABILITY CLASS Q CLASS FREQUENCY (PERCENT) a 4.26 WIND DIRECTION FROM SPEED E NNE HE ENE E ESE SE SSE S SSW SW WSW W WWl4 tM 3CM VR8L 1CTAL g EPH CALM 0 0 0 0 0 0 0 0 0 1 0 2 1 0 2 0 0 6 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .28 .00 .56 .28 .00 .56 .00 .00 1.68 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .00 .02 .01 .00 .02 .00 .00 .07 I
(
C3 13 9 13 0 7 4 8 6 11 30 62 54 41 31 17 15 0 327 I (1) 3.63 2.51 3.63 .00 1.96 1.12 2.23 1.68 4.75 8.38 17.32 15.08 11.45 8.66 4.75 4.19 .00 91.34 (2) .15 .11 .15 .00 .08 .05 .30 .07 .20 .36 .74 .64 .49 .31 .20 .18 .00 3.89 47 0 0 0 0 0 1 0 0 1 2 7 3 2 4 4 1 0 25 l
- 11) .00 .00 .00 .00 .00 .38 .00 .00 .28 .56 1.96 .84 .56 1.12 1.12 .28 .00 6.98 l (2) .00 .00 .00 .00 .00 .01 .00 .00 .01 .02 .00 .04 .02 .05 .05 .01 .00 .30 I 8 12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 I (1)
(2) 13-18
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00
.00 0
.00
.00
.00 0
.00
.00
.00
.00 0
.00
.00
.00 0
.00
.00
.00 0
.00
.00 0
.00
.00
.00 0
.00
.00 00 0
.00
.00
.00 0
.00
.00
.00 0
.00
.00
.00 0
.00
.00
.00
.00 0
l (1) .00 .00 .00 .00
- 42) .00 .00 .00 .00 .00 00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 19 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ft) A0 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 l
- I W 24 (1)
(2) 0
.00
.00
.00
.00 0 0
.00
.00
.00
.00 0
.00
.00 0 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00
.00
.00 0 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00 0
.00
.00
.00
.00 0
I l
l ALL SPEECS 13 9 13 0 7 5 8 6 18 33 69 59 44 35 23 16 0 358 i (1) 3.63 2.51 3.63 .00 1.96 1.40 2.23 1.68 5.03 9.12 19.27 16.48 12.29 9.78 6.62 4.47 .00 100.00 (2) .35 .11 .35 .00 .08 .06 .10 .07 .21 .39 .82 .70 .52 .42 .27 .19 .00 4.26 (1)sPERCD:T OF ALL C000 CBSERVATIONS FOR THIS PAGE (2) PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD Ce CAIJ (WIND SPEED LESS THAN OR EQUAL To .95 HPN)
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EwouldsmShu famedVY Effluent & Wane Duposat Annual Repon.4cc '30-
TABLE 6H VERMONT YANH,4 JAN 98 a DEC 98 N2*T.OR0 LOGICAL DATA JOINT FREQUENCY DISTRIStTTION 35.0 FT WIND DATA STABILITY CLASS ALL CLASS FREQUDICY (PERCDrf) = 100.00 WIND DIRECTION FROM l SPEED N NNE NE ENE E ESE SE $$E S $$W SW WSW W WNW Mf WNW VREL TOTAL l MPN CAIJE 5 9 4 5 5 4 2 5 6 8 5 11 1 9 9 5 0 99 (1) .06 .11 .05 .06 .06 .05 .02 .06 ,07 .10 .06 .13 .08 .11 .11 .06 .00 1.18 (2) .06 .11 .05 .06 .06 .05 .02 .06 .07 .10 .06 .13 .08 .11 .11 .04 .00 1.18 C-3 248 134 116 115 111 130 156 195 219 294 528 427 373 322 365 429 0 4168 (1) 2.95 1.60 1.38 1.37 1.39 1.55 1.86 2.32 2.61 3.50 6.29 5.08 4.44 3.83 4.35 5.11 .00 49.63 (2) 2.95 1.60 1.38 1.37 1.39 1.55 1.86 2.32 2.61 3.50 6.29 5.08 4.44 3.8) 4.35 5.11 .00 49.63 I 4-1 (1)
(2) 388 122 4.62 1.45 4.63 1.45 50
.60
.60 48
.57
.57 71 107 113 244
.85
.85 338 1.27 1.35 2.91 4.02 1.16 1.27 1.35 2.91 4.02 1.16 97 75
.89
.89 65 107 141 233 556 17 1.21 1.68 2.77 6.62
.77 1.27 1.68 2.77 6.62
.00
.00 0 2155 32.81 32.41
).
50 0 19 20 140 de 24 16 59 166 151 218 0 1168 I
8-12 213 21 11 3 (1) 2.54 .60 .25 .13 .10 .23 .04 .24 1.67 .58 .29 .19 .10 1.98 1.80 2.50 .00 13.91 (2) 2.54 .60 .25 .13 .10 .23 .04 .24 1.67 .58 .29 .19 .70 1.98 1.80 2.60 .00 13.91 13-18 20 4 1 0 1 0 C 0 12 6 1 0 9 71 58 15 0 198 (1) .24 .05 .01 .00 .01 .00 .00 .00 .14 .07 .01 .00 .11 .85 .69 .18 .00 2.36 I (23 19-24 (1)
(2)
.24 0
.00
.00
.05 0
.00
.00
.01 0
.00
.00
.00 0
.00
.00
.01
.00
.00 0
.00 0
.00
.00
.00 0
.00
.00
.00
.00
.00 0
.14 0
.00
.00
.07 0
.00
.00
.01 0
.00
.00
.00 0
.00
.00
.11 2
.02
.02
.85 4
.05
.05
.69 4
.05
.05
.18 0
.00
.00
.00 0
.00
.00 2.36 10
.12
.12 GT 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 00 .00 .00 .00 .00 .00 .00 ALL SPEEDS 874 319 192 179 202 260 214 464 715 454 633 519 557 713 820 1223 0 8398 (1) 10.41 3.80 2.29 2.13 2.41 3.10 3.26 5.53 8.51 5.41 7.54 6.18 6.f3 8.49 9.76 14.56 .00 in0.00 (2) 10.41 3.80 2.19 2.13 2.41 3.10 3.26 5.53 8.51 5.41 7.54 6.18 6.63 8.49 9.16 14.54 .00 100.00 f t)* PERCENT CF ALL GOOD CBSERVATIONS FOR THIS PACE (2)* PERCENT OF ALL C00D CBSERVATIONS FOR THIS PERIOD Ce CAIJt (WIND SPEED LESS THAN OR EQUAL 70 .95 MPN)
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- u. aw eTum 2w Domow, I-APPENDIX A ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT SupplementalInformation I for 1998 Facility: Vermont Yankee Nuclear Power Station Licensee: Vermont Yankee Nuclear Power Corocration l A. IE.CIINICAL SPECIFICATION LIMITS - DOSE AND DOSE RATE Technical Specification and Category Limit
- a. Noble Gnes 3.8.E.1 Total body dose rate 500 mrem /yr 3.8.E.1 Skin dose rate 3000 mrem /yr 3.8.F.1 Gamma air dose 5 mrad in a quarter 3.8.F.1 Gamma air dose 10 mrad in a year 3.8.F.1 Beta air dose 10 mrad in a quarter 3.8.F.1 Beta air dose 20 mrad in a year
- b. Iodine-131. Iodine-133. Tritium and Radionuclides in Particulate Form With Half-Lives Greater Than 8 Days 3.8.E.1 Organ dose rate 1500 mrem /yr 3.8.G.1 Organ dose 7.5 mrem in a quarter l 3.8.G.1 Organ dose 15 mrem m a year ;
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- c. Liauids 3.8.B.1 Total body dose 1.5 mrem in a quarter 3.8.B.1 Total body dose 3 mrem in a year 3.8.B.1 Organ dose 5 mrem in a quarter 3.8.B.1 Organ dose 10 mrem in a year i I d. Total Dose or Dose Commitment to a Member of the Public from all Str ~ vg_qs l 3.8.M.1 Total body dose 3.8.M.2 Any organ (except thyroid) 25 mrem in a year 25 mrem in a year 75 mrem in a year 3.8.M.1 Thyroid I
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APPENDIX A (Continued)
ANNU AL RADIOACTIVE EFFLUENT RELEASE REPORT l
2A. TECHNICAL SPECIFICATION LIMITS - CONCENTRATION Technical Snecification and Category Limiil
- a. Noble Gases No ECL Limits l
- b. Iodine-131. Iodine-133. Tritium and Radionuclides in Particulate Form With Half-Lives Greater Than 8 Days No ECL Limits
- c. Liquids l
3.8.A.1 Total fraction of ECL excluding noble gases (10CFR20, Appendix B, Table 2, Column 2): $1.0E+01 3.8.A.1 Total noble ga'; concentration: s2E-04 pCi/ml
- 3. AVER AGE ENERGY Provided below are the average energy (E) of the radionuclide mixture in releases of fission and l activation gases,if applicable. I
- a. Average gamma energy: Not Applicable
- b. Average beta energy: Not Applicable
- 4. MEASUREMENTS AND APPROXIMATIONS OFTOTAL RADIOACTIVITY !
' 1 Provided below are the methods used to measure or approximate the total radioactivity in effluents I and the methods used to determine radionuclide composition. :
- a. Fission and Activation Gases j Continuous stack monitors record 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 analyz:d for the gaseous isotopes present. These are used to calculu the individual isotopic releases indicated in Table IB and the totals of ;
Table 1 A. The overall error involved in these steps is estimated to be approximately 123 percent.
l E%r4Jma4he heatVYEfibeed % um Deposal Annul Repoetdoc A-2
E APPENDIX A (Continued) l ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT
- b. Iodmes ,
1 Continuous isokinetic samples are drawn from the plant stack through a paniculate filter I and charcoal cartridge. The filters and cartridges are normally remov:d weekly and are analyzed for Iodine-131,132,133,134, and 135. The overall error involved in these steps is estimated to be approximately 18 percent.
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- c. Particulates i The particulate filters described in b. above are also counted for paniculate radioactivity.
The overali error involved in this sample is also .rproximately 18 percent.
- d. Tritium I Grab samples from the plant stack are taken monthly through a cold trap collection device and analyzed for tritium. The error involved in this sample is approximately 15 percent. l
- e. Weste 03 Prior to issuing the permit to bum a drum of radioactively contaminated waste oil, one liter I 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 Technical Specification Table 4.8.1.
l' Monthly, samples from drums that were issued burn permits are sent to the E-Lab for compositing and analysis. The E-Lab analyzes for tritium, alpha, Fe-55, Sr-89, and Sr-90 en the composite sample. (
The error involved in this sample is approximately 15 percent.
- f. Liould Effluents There were no radioactive liquid effluents released in 1998.
l Vermont Yankee is licensed to perform liquid effluent releases. Summarized below is Vermont Yankee's program for performing licensed radioactive liquid effluent releases. I Radioactive liquid effluents released from the facility are continuously monitored. l Measurements are also made 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 (pCi/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.
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- E E APPENDIX A (Continued)
ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT Each batch of radioactive liquid effluent releases 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.
- 5. BATCH RELEASES
- a. Liquid
.I There were no routine liquid batch releases during the reporting period.
- b. Gaseous There were no routine gaseous batch releases during the reporting period.
The gaseous releases from burning waste oil are treated as either batch or continuous releases based on the total hours of burning in a calendar quarter.
- 6. ABNORMAL RELEASES
- a. Liquid There were no nonroutine liquid releases during the reporting period.
- b. Qaseous
)
There were no nonroutine gaseous releases (measured) during the reporting period. )
One event occurred in the second quarter which involved a temporary loss of power to the I stack sampling pumps. Vermont Yankee began to pull rods after Refueling Outage 20 on June 1,1998. On June 8, the reactor reached 100% power. At 0135 on June 9, the reactor )
scrammed from approximately 65% power. At 0224, the plant lost buses 1,3,6 and 11. The I
l loss of bus 3 caused a power loss to bus 8. Bus 8 supplies power to the stack sampling pumps. Without the pumps operating, the iodine and particulate filters and the noble gas lg monitors (scintillation detectors) are not able to monitor the stack effluent. Although the E diesel generators restored power to the buses within minutes, power was not restored to the stack sampling pumps. The pumps must be manually started. The Control Room notified ;
Chemistry that the pumps were OOS at 0310. The Chemistry logbook indicates that the !
Control Room restarted the pumps at 0320. Therefore, between 0224 and 0320, the stack j effluent was not monitored by Stack I ar d Stack II (noble gases, iodines, and particulates). !
Stack III, the high range monitor (ionization detector), did remain in service throughout the l l
entire event. The trend of this monitor did not show any indication of releases between 0014 and 0514 on June 9.
I n. - w vmn.:.aw w wouy e. A-4
APPENDIX A (Continued)
ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT Indications are that any releases during the unmonitored hour were no more than, and probably less than, the rates before the scram. The bounding calculation performed based on conservative assumptions using the stack high range monitor gives assurance that no Technical Specification Limits for dose rates due to noble gases were exceeded.
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APPENDIX B i LIQUID HOLDUP TANKS Requirement: 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 Technical Specification 6.7.C.I.
Response: The limits of Technical Specification 3.8.D.1 were not exceeded during this reporting period.
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APPENDIX C j I RADIOACTIVE LIQUID EFFLUENT MONITORING INSTRUMENTATION i
Requirement: Radioactive liquid effluent monitoring instrumentation channels are required to be operable in accordance with Technical Specification Table 3.9.1. If an inoperable ]
radioactive liquid effluent monitoring instrument is not returned to operable status prior I to a release pursuant to Note 4 of Table 3.9.1, an explanation in the next Annual Radioactive Effluent Release Report of the reason (s) for delay in correcting the j inoperability are required per Technical Specification 6.7.C.1. l l
Response: Since the requirements of Technical Specification Table 3.9.1 governing the operability f I of radioactive liquid effluent monitoring instrumentation were met for this reponing period, no response is required. ;
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I APPENDIX D RADIOACTIVE GASEOUS EFFLUENT MONITORING INSTRUMENTATION Requirement: Radioactive gaseous effluent monitoring instrumentation channels are required to be operable in accordance with Technical Specification Table 3.9.2. Ifinoperable gaseous effluent monitoring instrumentation is not returned to operable status within 30 days pursuant to Note 5 of Table 3.9.2, an explanation in the next Annual Radioactive Effluent Release Report of the reason (s) for the delay in correcting the inoperability is I required per Technical Specification 6.7.C.I.
Response: Since the requirements of Technical Specification Table 3.9.2 governing the operability of radioactive gaseous effluent monitoring instrumentation were met for this reporting
.l period, no response is required.
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I APPENDIX E RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Reauirement: The radiological environmental monitoring program is conducted in accordance with Technical Specification 3.9 C. With milk samples no longer available from one or more of the sample locations required by Technical Specification Table 3.9.3, Technical Specification 6.7.C.1 requires the following to be in::luded 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 availah replacement samples and (3) include revised ODCM figure (s) and table (s. . ting the new location (s).
No changes were needed in the milk sampling locations specified in Technical I Resnonse:
Specification Table 3.9.3 due to sample unavailability during the reporting year.
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I APPENDIX e LAND USE CENSUS Reauirement: A land use census is conducted in accordance with Technical Specification 3.9.D. With a land use census identifying a location (s) which yields at least a 20 percent greater dose or dose commitment than the values currently being calculated in Technical Specification 4.8.G.1, Technical Specification 6.7.C.1 requires the identificntion of the new location (s) in the next Annual Radioactive Effluent Release Report.
Resoonse: The Land Use Census was completed in the third quarter of 1998. No locations yielded a 20 percent greater dose or dose commitment than the values currently being calculated in Technical Specification 4.8.G.I.
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APPENDIX G PROCESS CONTROL PROGRAM I Requirement: Technical Specification 6.12.A.1 requires that licensee initiated changes to the Process Control Program (PCP) be submitted to the Commission in the Annual Radioactive J Radioactive Effluent Release Report for the period in which the change (s) was made, j i
Response: The following changes were made to the Process Control Program (PCP) and issued as Revision 7 during this reponing period.
Section 2.0: Added: to dewater liners after filters have been disposed in the liner.
Section 5.0: Inserted description of DAW, the process in controlling disposal l and processor activities of DAW.
The changes implemented in Revision 7 of the PCP did not reduce the overall cor.formance of the dewatered spent resins / filter media waste product to existing criteria for solid waste shipments and disposal.
The revisions does not affect Technical Specifications and does not affect any system or process described in the FSAR. A review of YOQAP was done with no findings.
- This change was reviewed against AP 6002.02; it was determined that no safety j evaluation is required.
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l The revised Process Control Program is attached. The revised Process Control Program documents the fact that the change has been reviewed by PORC and approved by the l
Manager of Operations (MOO).
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VERMONT YANKEE NUCLEAR POWER CORPORATION PROCESS CONTROL PROGRAM REV 7 I Januar.y 26,1998 l
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- I l Submitted- 6 RadiationMeetion Manager I Approved N N M M 7MI PORC (Tech. Spec. 6.'12(A)(2))
Approved #8 [ m' P$tA r!!ff Approved i i ti us N - ilDN "VP, 6 NMfi.'Shc. 6.12(A)(2))
I am I N / or obtain currens revision from Document Control prior to submitting this document for future revision. (ER 96 255)
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VERMONT YANKEE NUCLEAR POWER CORPORATION PROCESS CONTROt. PROGRAM l
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Introduction:
- _ T,he Vermont Yankee Nuclear Power Corporation Process Control Progcarn (PCP) describes the administrative and technical con +rols on the radioactive waste systems s which provide assurance that Vermont Yankee meets federal shipping and burial site !
' requirements.
The PCP complies with Technical Specification 6.12 by describing process parameters, I controls, tests, sampling and analysis to ensure compliance with to CFR 20,10 CFR 71, and 10 CFR 61 Energy,49 CFR 172-173 Transportation, state, and burial site regulation requirements.
1.0 Solidification
.g Vermont Yankee Nuclear Power Corporation does not routinely solidify liquid waste, j If the use of solidificction to dispose of any liquid waste is required,it will be done by an outside vendor under the vendor's PCP. The vendor PCP will be reviewsd and approved by the Plant Health Physicist, the Radiation Protection Manager, PORC and VP, MOO prior to implementation. This review is to identify that there is sufficient supporting documentation of the vendor's PCP to give assurance that the final product will meet all requirements for transport and burial, and that sufficient procedural
. controls exist to assure safe operations. [TS 4.8.N) 2.0 Cartridae Filter Elements Low activity cartridge filter elements (< 200 mR/hr @ 30cm) will be air dried (-24hr or as determined by the Radwaste Supervisor) and handled as dry active waste. Filters l determined to be above the dose limitations per 49CFR, will be placed in casks. The
! liner shall be dewatered as applicable and shipped for disposal.
3.0 Resins l Normal operations produce radioactive waste in the form of dep!cted resins. These resins are processed in the burial container using a rapid dowatering system (RDS-1000) manuft ctured by Chem Nuclear Systems, Inc. [OP 2153]
1 The system has been tested, by Chem Nuclear, for certification in meeting the Bamwell l I Site Criteria and disposal requirement for free standing liquid. These tests are described in Chem-Nuclear's Topical Report on the ROS-1000 Radioactive Waste Dewatering System, in addition, to comply with the statement, "Any l' quids present l
in waste packages shall be non-corrosive with respect to the container," Vermont Yankee tested the pH of various resin mixtures used by the plant in solution with
~
water. The range was found to be 4.2 - 8.4. A solution is not considered corrosive if the pH is greater than 4.0 and less than 10.0.
. Rev.7 Page 1 ef 4
I I A resin sample is taken from each liner prior to shipment. The sample is counted to determine the activity and waste classification. Class A resins that exceed 1.0 yCi/cc I of isotopes with greater than 5 year half-lives a' nd all Class 8 and C resins will be disposed of in an approved High integrity Container (HIC).
Vendor supplie'd or temporary methods of processing resins may be used in lieu of the I, a. hove process provided that the vendor or temporary process meets the requirements of quality described above and does not conflict with accepted burial criteria or safety I requirements. Such methods will be reviewed and approved by the Plant Health Physicist and the Radiation Protection Manager prior to implementation.
4.0 Filter Liners During refueling outages and normal operation, liquid radwaste processing may require use of a decanting filter on the condensate phase separators. A floating suction is used to decent the water and resin into a filter liner. Filtered water is pumped from the liner. The liner is dewatered in accordance with OP 2511 (MOOlD9409-03) such that the burial site criterion for free-standing wateris met. A resin sample is taken from the liner and analyzed to determine the activity and waste classification.
5.0 Drv Active Waste (DAW) '
DAW is compacted, as practical, or shipped to a vendor that sorts the material for processing or recycling. All DAW is examined before being compacted or shipped.
Any liquids or iterns found that would compromise the integrity of the package are l rernoved and separated as specified by procedure. IOP 2512] DAW which includes l compactable, incinerable and metal materials are segregated in the plant and I l l
l transported to the applicable sealand container, then shipped to the appropriate / cost offective off-site processor. If deemed practical, the DAW will be surveyed and free-released onsite,if possible. Containers used for DAW shipments meet the criteria of 49 CFR 173.425a. or b. "No leakage of radioactive material," as specified in 49 CFR I 173.425.b.1 will be met provided that no radioactive materials in quantities equal to or exceeding those specified in 49 CFR 173.443 are detected on the external nurfaces of the package at any time during shipment.
6.0 Chelatino Acents in order to comply with 10 CFR 20 Appendix F, chelating agents are controlled by the plant chemistry department using procedure AP 0620 and AP 0619.
7.0 Exolosive Waste No waste capable of detonation or of explosive decomposition or reaction will be disposed as per 10 CFR 61.56(a)(4). Refer to MSDS via AP 0620 along with AP 0619.
7 PCP L Rev.7 Page 2 of 4
8.0 Texic Waste No waste cepable of generating toxic gases, vapors, or fumes will be disposed as per 10 CFR 61.56(a)(5). Refer to MSDS via AP 0620 along with AP 0619.
9.0 Pyroefkoric Waste -
1 No waste that is pyrophoric will be disposed as per 10 CFR 61.56(a)(6). Refer to MSDS via AP 0620.
10.0 Hioh Inteority Containers fHICs)
Vermont Yankee Nuclear Power Corporation has contracted with various suppliers of
.. approved HlCs. South Carolina has approved PCPs for HICs used by Vermont Yankee.
Any HIC Vermont Yankee may choose to use at some future time, will meet all I applicable requirements.
11.0 Waste Class Determination I Along with an approved outside laboratory, Vermont Yankee periodically pii' forms laboratory analysis on all waste streams to determine the activity of radionuclides I listed in Tables 1 and 2 of 10 CFR 61. Correlation analysis verifies that the relative concentration of each radienuclide, with respect to the overall activity in a given Vermont Yaakee weste stream, remains constant over time. A set of scaling factors I is determined which allows the activity of 10 CFR C radionuclides to be estimated using the results of gamma spectrometric analysis or direct gamma dose rate measurements.
For resin wastes, analysis is performed on samples of each source of resin comprising a the contents of a burial container. Scaling factors are applied to the activity of radionuclides identified by gamms spectrometry analysis to determine the activity of I those radionuclides which are not detected in the gamma spectrum. '
For DAW, dose rate-to-curie conversion calculations are performed to determine the I total activity present in a container. Scaling factors are applied to the container's total curie content to determine the activity of individua! radionuclides.
Specific procedures for determining 10 CFR 61 scaling factors are contained in OP 2527," Sampling and Analysis for Radwaste Classification."'Once the activity of each rt.dionuclide in a burial container is estimated, the waste classification is derived using methods required by 10 CFR 61. Specific procedures for waste class determination I are contained in AP 0504, " Shipment of Radioact!,e Maurict."
12.0 Mixed Wuta
( No mixed waste will be disposed at per 10 CFR 61.56(a)(8) unless properly treated.
PCP Rev.7 s
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PROCEDURES WHICH IMFLEMENT THE PCP
- ~ ~
- 1. P 0504 Shipment of Radioactive Materials
- 2. TP 2511 Radwaste Cesk/ Liner Handling
- 3. OP 2527 Sampling and Analysis for Redwaste Classification
- 4. OP 2151 Liquid Radwaste
- 5. OP 2153 Solid Radwaste
- 6. AP 0620 Chemical Material Use
- 7. OP 2512 Radwaste Drum, Box and Sealand Handling ,
- 8. AP 0619 Chemica: Control / Hazard Communication Program I
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I APPENDIX H I OFF-SITE DOSE CALCULATION MANUAL Requirement: Technical Specification 6.13.A.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.
Reso. oms: Revision 22 to tne Off-Site Dose Calculation Manual was made during this reponing period.
The major changes included in Revision 22 to the ODCM are:
(1) Page i(Cover Page): An additional sigr.ature line is included to identify the
" Originator" of the specific revision to the ODCM listed on the cover page. This I is an administrative enhancement aimed at providing the name of the individual responsible for preparing the changes for that amendment to the document. This is intended to help others know who to contact if questions concerning the I changes were to arise after the revision is implemented.
(2) Page 4-1: The ODCM currently gives reference to the " Yankee Atomic Environmental Laboratory" as the contractor providing laboratory sample analyser, services to VY for the Radiological Environmental Monitoring Program (REMP) implementation. On December 1,1997, Yankee Atomic Electric Company, including the Environmental Laboratory, were acc, aired by Duke Engineering and Services, Inc. This change in owr. rship has necessitated I editorial updates in the text of the ODCM to correct the name of the laboratory providing these services. These word changes arejudged editorial in nature since in fact the same laboratory continues to provide the same contractual suppon for the VY REMP.
(3) Page 4-la: Based on the 1997 GPS survey of REMP sampling locations with I '
respect to the plant (Reference 1), minor corrections in the listed distances to several air sampling stations were noted. These changes refine the previous estimates 3f distance which had been taken fro'm available maps and best visual I colmates of the position of plant and various locations in the environrr.ent. The differential GPS . measurements made of all REMP locations generated position coordinates within plus or minus 5 meters accuracy. Previous listing oflocations I in the ODCM were only given to the nearest 100 meters. These changes are taken as technical enhancements to the REMP location information.
I (4) Page 4-2 (Table 4.1): Two additional milk sampling locations (TM-22 at 9.73 km WSW, and TM-23 at 6.98 km WNW) are added to the REMP program as non-Tech Spec required locations. VY Technical Specification Table 3.9.3 requires samples from milking animals in 3 locations within 5 km distance having the highest dose potential be included in the REMP. The current listing of milk sampling programs satisfy this requirement. The expanded milk sampling program created with the two new locations also includes sites that have high n.ause ma w w e .m an e H-1
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APPENDIX H (Continued)
I OFF-SITE DOSE CALCULATION MANUAL relative potential for observing plant influence and covers two additional sectors.
This enhancement goes beyond minimum requirements and improves the ability of milk sampling to be an early indicator of possible plant environmental influence.
(5) Page 4-2a (Table 4.1), and Figure 4-3: As noted before, two additional milk sampling locations (TM-22 at 9.73 km WSW, and TM-23 at 6.98 km WNW) are added to the REMP program as non-Tech Spec required locations. These same locations are also being added to the program as silage collection locations (TC-I 22 & TC-23) for consistence with how other milk locations are handled. This enhancement goes beyond minimum requirements and improves the ability of milk and silage sampling to be early indicators of possible plant environmental influence.
Pages 4-2,4-2a,4-3 (Table 4.1): As noted in item 3 above, the 1997 GPS survey I (6) of REMP sampling locations (Reference 1) refined the estimate of distance and direction each location represented with respect to the plant. The listings of distan:e and direction on Table 4.1 are updated to reflect the latest survey I
measurements. No significant errors in the old location information was noted based on the GPS measurements. Also, page 4-3 (Table 4.1): Footnote 2 is '
I clarified by the inclusion of the exception that milk and silage locations also do not keep with the standard convention of using station numbers 10 through 19 as indicator type sites, and 20 through 29 as controls. This was necessary since all
_ I station numbers in the teens had been used in the past for milk sampling locations. The addition of two new milk and silage sites (TM/TC-22 & 23) required thr.t numbers beyond the teens be used. This is seen as an administrative change only.
(7) Page 4-2a,4-3 (Table 4.1): Technical Specification Table 3.9.3 requires that I direct radiation (via use of TLD's) be placed in each meteorological sector within a range of 0 to 4 km. Prior to the 1997 GPS survey, the site boundary TLD station DR-8 was believed to be in the SW sector, and was designated as ,
I fulfilling this Tech Spec requirement. Reference 1 actually located DR-8 just over the sector line in the SSW sector. In addition, TLD inner ring locations DR-29 and DR-31 were found to be in adjacent sectors to those originally listed.
I As a result of this shifting of designated sectors, site boundary TLD DR-7 replaces the previously designated location DR-8 as satisfying Technical Specification 3.9.3 for an inner ring TLD in the West sector (footnote 7 on page I 4-3). This change in designation does not physically change the actual location or total number of dosimeters placed in the environment (including both DR-7 &
8 which remain on the plant boundary fence), and as such this revision to the REMP listing is seen only as administrative in nature.
(8) Pages 4-4 thrcugh 4-9 (Figures 4-1 through 4-6): The generation of REMP location information by the 1997 GPS survey provided fixed coordinates that o.- m mw . % m- w H-2 I
APPENDIX H (Continued)
OFF-SITE DOSE CALCULATION MANUAL could be used in a Graphical Information System (GIS) to produce digital site maps of higher quality than previously available. As a result, new environmental sampling location maps are included in this revision to the GDCM. The <
information shown on the maps reflects the listing of REMP locations on Taole 4-1.
In addition, several administrative updates to the text of the VY ODCM are included. Also, Page 4-lb is included because of a font change - there was no change in content to Page 4-lb.
No changes have been made to either the dose calculation or setpoint methodologies. It is therefore concluded that these changes will maintain the level of radioactive effluent control required by 10CFR20.1302,40CFR190,
, 10CFR50.36a, and Appendix I to 10CFR Part 50, and not adversely impact the accuracy or reliability of effluent dose cr setpoint calculations.
l Revision 22 was reviewed by PORC in Mtg 98-076 and approved by the Director of Operations on 7/13/98.
The revised pages from Revision 22 to the ODCM are attached.
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I p..numatther hsneem Emna & Waiu Duposal Annual Reportdoc H-3
l-I VERMONT YANKEE NUCLEAR POWER STATION I' ~~ ~
OFF-SITE DOSE CALCULATION MANUAL REVISION 22 1 l l I
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LIST OF AFFECTED PAGES I Pace Revision Date 1 22 07/13/98 11 22 07/13/98 I 111 iv y
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l 4.0 ENVIRONMENTAL HONITORING PROGRAM Q
The radiological environmental monitoring stations are listed in Table 4.1. The locations of the stations with respect to the Vermont Yankee plant are shown on the maps in Figure, 4-1 to 4-6, 4.1 Intercomparison Procram All routine radiological analyses for environmental samples ar'e performed at the Duke Engineering & Services Environmental Laboratory (DE&S-EL). ThiswasformallytheYankeeAtomicEnvironment85.aboratory.The Laboratory participates in several government and commercial intercomparison quality assurance programs (0APs) that are traceable to the National Institute of Standards and Technology (NIST). These include: Nuclear Energy Institute *
(NEI)/NIST Neasurement Assurance Program for the Nuclear Power Industry: U.S.
Environmental Protection Agency's Intercomparison Program for Drinking Water as available: and Analytics. Inc. (commercial). DE&S-EL also participates in
-I the OAP for environmental media conducted by the Environmental Measurements Laboratory of the U.S. Department of Energy. ,
4.2 Airborne Pathway Monitorino The environmental sampling program is designed to achieve several major objectives including sampling air in predominant up-valley and down-valley I
wind directior,s. and sampling air in nearby communities and at a proper control iocaticn. while maintaining continuity with tws years of preoperational data and 18 years of operational data (as of 1990). The chosen air sampling locations are discussed below.
To assure that an unnecessarily frequent rele ation of samplers will not be required due to shoct-term or annual fluctuations in meteorology, thus -
incurring needless expense and destioying the continuity of the program. long term. site specific ground level D/0s (five-year averages - 1978 through 1982) were evaluated in comparison to the existing air monitoring locations to determine their adequacy in meeting the above-stated objectives of the program and the intent of the NRC general guidance. The long-term average ,
meteorological data base precludes the need for an annual re-evaluation 'of air sampling ;- locations based on a single year's meteurological history.
The Connecticut River Valley in the vicinity of the Vermont Yankee plant has a pronounced up- and down-valley wind flow. Based on five years of
.- meteorological data, wind blows into the 3 "up-valley" sectors (N. NNW and i <
NW) 27 percent of the time. and the 4 "down-valley" sectors (S. SSE. SE and ESE) 40 percent of the time. for a total "in valley" time of 67 percent.
( Revision 22 Date 7/13/98
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Station AP/CF-12 (NNW, 3.6 km) in North Hinsdale New Hampshire, monitors the h up-valley sectors.
It is located in the sector that ranks fourth overall in terms of wind frequency (i.e.. in terms of how often the wind blows into that sector), and is approximately 0.5 miles from the location of the calculated maximum ground level D/0 (i.e., for any location in any sector, for the entire Vermont Yankee environs). This station provides a second function by its location in that it also monitors North Hinsdale. New Hampshire, the community with the second highest ground level D/Q for surrounding communities, and it has been in operation since the preoperational period.
The down-valley direction is monitored by two stations - at River Station Number 3.3 (AP/CF-11. SSE. 1.9 km) and at Northfield. Massachusetts (AP/CF-14. SSE. 11.6 km). They both reside in the sector with the maximum l
I wind frequency and they bound the down-valley point of calculated maximum ground level D/0 (the second highest overall ground level D/0 for any location in any sector).
Station AP/CF-11 is approximately one mile from this point.
between it and the plant. Station AP/CF-14 also serves as a community monitor for Northfield Massachusetts. Both stations have been in operation since the preopecational period.
I In addition to the up- and down-valley locations, two communities have been chosen for community sampling locations. The four nearest population groups with the highest long-term average D/0 valu'e' s .' in decreasing order, are Northfield. Massachusetts, North Hinsdale. New Hampshire. Brattleboro.
I Vermont. and Hinsdale. New Hampshire. The community sampler for Northfield is at Statior. AP/CF-14 (mentioned above). North Hinsdale is already monitored by the up-valley station (AP/CF-12. NNW. 3.6 km), which also indirectly monitors the city of Brattleboro, locatert further out in the same sector. The second sampler specifically designated for a community is at Hinsdale Substation I (AP/CF-13. E. 3.1 km) in Hinsdale.
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The control air sampler was located at Spofford Lake (AP/CF-21.
NNE. 16.4 km) due to its distance from the plant and the low frequency for l wind blowing in that direction based on the long-term (five-year) meteorological history. Sectors in the general west to southwest direction, which would otherwise have been preferable due to lower wind frequencies.,were not chosen since they approached the region surrounding the Yankee Atomic plant in Ro,we Massachusetts. _
An additional air sampler is maintained at the Tyler Hill site (AP/CF.15. WNW. 3.1 km), which is along the western side of the valley in I,. *' general proximity of historical. dairy opera,tions. (The sixth location is not
(
a specific Technical Soecification requirement.)
Revision 22 Date 7/13/98 l
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4
- 4.3 Distances and Directior.s to Honitorino Stations I
chn.
It should be noted that the distances and directions for direct I radiation monitoring locations in Table 4.1, as well as the sectors shown in Figures 4.5 and 4.6. are keyed to the center of the Turbine Building due to the critical nature of the Turbine Building-to-TLD distance for close-in stations. For simplicity, all other radiological environmental sampling locations use the plant stack as the origin. l Technical Specif16ation 6.7 and Table 3.9.3. Footnote a. spect fy that in
- - the Annual Radiological Environmental Surveillance Report and ODCH. the reactor shall be used as the origin for all distances and directions to sampling locations. Vermont Yankee interprets "the reactor" to mean the reactor site which includes the plant stack and the Turbine Building. The
distances to the plant stack and Turbine Building will, therefore, be used in the Annual Radiological Environmental Surveillance Reports and ODCH for the sampling and TLD monitoring stations, respectively, ll i
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Table 4.1 Radiolooical Environmental Monitorino StationsII)
I Exposure Pathway Sample Location Distance and/or Sample and Desionated Code (2) (km)(5) Direction (5)
- 1. AIRBORNE (Radioiodine and Particulate)
AP/CF-11 River Station 1.88 SSE No. 3.3
- g AP/CF-12 N. Hinsdalei NH I 3.61 NNW 3 AP/CF-13 Hinsdale Substation 3.05 E AP/CF-14 Northfield. HA 11.61 SSE l AP/CF-15 Tyler Hill Road") 3.14 WNW I AP/CF-21 Spofford Lake 16.36 '
NNE
)
- 2. WATERBORNE l
- b. Ground WG-f1' Plant Well 0.24 On-Site WG-12 Vernon Nursing Well 2.13 SSE m WG-22 Skibniowsky Well 13.73 N g
- c. Sediment SE-11 Shoreline Downriver 0.57 SSE From SE-12 North Storm 0.13 E Shoreline Drain Outfall(3) 1
- 3. INGESTION
- a. Hilk(8) TM-11 Miller Farm 0.82 W f TM-14 Brown Farm 2.22 S TM 16 Meadow Crest Farm 4.26 NW -
TM 18 Blodgett Farm") 3.60 SE I TM-22 TM 23 TH-24 F'ranklin Farm")
Evans Farm")
County Farm 9.73 6.98 21.64 WSW WNW N
- b. Mixed TG-11 River Station 1.88 SSE ,
Grasses No. 3.3 '
TG-12 N. Hinsdale,.NH 3.61 NNW
,-- TG 13 Hinsdale Substation 3.05 Er # '
TG 14 Northfield. MA 11.61 SSE TG-15 Tyler Hill Rd.") 3.07 WNW TG-21 Spofford Lake 16.36 NNE l (~. Revision 22 Date 7/13/98 ;
4-2
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i Table 4.1 l
-[
(Continued)
Radiolooical Environmental Honitorino Stations (l)
Exposure Pathway Sample Location Distance ard/or Sample and Desionated Code (2)
(km)<5) Direction (6) l
- c. Silage TC-11 Hiller Farm 0.82 W TC-14 Brown Farm 2.22 S . j TC-16 Headow Crest Farm 4.26 NW I
' TC-18 Blodgett Farmid) 3.60 SE TC-22 Franklin Farm (4) 9.73 WSW TC-23 Evans Farms (d) 6.98 WNW TC-24 County Farm 21.64 N 1
- d. Fish FH-11 Vernon Pond (6) (6; FH-21 Rt. 9 Bridge 11.83 Upriver l
- 4. DIRECT RADIATION DR-1 River Station ,. 1.61 SSE No. 3.3 DR-2 N. Hinsdale. NH 3.88 h DR-3 DR 4 Hinsdale Substation Northfield. HA 2.98 11.34 NNW E
SSE DR-5 Spofford Lake 16.53 NNE I DR-6 DR-7 DR-8 Vernon School Site Boundary (7)
Site Boundary 0.52 0.28 0.25 WSW W
SSW I DR 9 DR-10 DR-11 Inner Ring Outer Ring Inner Ring 1.72 4.49 1.65 N
N NNE DR-12 Outer Ring 3.58 NNE DR-13 Inner Ring 1.23 NE -
DR-14 Outer Ring 3.88 NE DR-15 Inner Ring 1.46 I
ENE DR-16 Outer Ring 2.84 ENE DR-17 Inner Ring 1.24 E DR-18 Outer Ring 2.97 E I DR-19 DR 20.*
DR 21 Inner Ring Outer Ring Inner Ring 3.65 5.33 1.82 ESE ESE' SE I ~
DR-22 DR-23 DR-24 Outer Ring Inner Ring Outer Ring 3.28 1.96 3.89 S E- ._-
SSE SSE DR-25 Inner Ring 1.91 S f..
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Revision 22 Date 7/13/98 {
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Table 4.1 (Continued)
Radioloaical Cnvironmental Honitorino StationsII)
I Exposure Pathway and/or Samole Sample Location and Desianated Code (2)
Distance (g ,)(5) Direction (5)
DR-26' Outer Ring 3.77 S DR-?? Inner Ring 1.10 SSW DR-28 Outer Ring 2.23 SSW DR-29 Inner Ring 0.92 SW DR-30 Outer Ring 2.36 SW DR-31 Inncr Ring 0.71 I
WSW DR-32 Outer Ring 5.09 WSW DR-33 Inner Ring 0.66 WNW DR-34 Outer Ring 4.61 W DR-35 Inner Ring 1.30 WNW DR-36 Outer Ring 4.43 WNW DR-37 Inner Ring 2.76 NW l OR-38 Outer Ring 7.34 NW DR-39 Inner Ring ,
3.13 NNW OR-40 Outer Ring 5.05 NNW O (1) Sample locations are shown on Figures 4.1 to 4.6.
(2) Station Nos. 10 through 19 are indicator stations. Stati n Nos. 20
) through 29 are control stations (for all except milk. silage and the l l direct radiation stations).
i (3) To be sampled and analyzed semiannually.
I (4) ,Non-Tech Spec station.
(5)
Distance and direction from the center of the Turbine Building for direct radiation monitors: from the plant stack for all others.
1I (6) Fish samples are collected from anywhere in Vernon Pond, which is adjacent to the plant (see Figure 4-1).
(7) DR-7 satisfies Technical Specification Table 3.9.3 for an inner ring l direct radiation monitoring location. However, it is averaged as a Site Boundary TLD due to its close proximity to the plant. ._ -
(8) In accordance with Technical Specification Table J.9.3. notation a.
samples will be collected on the required schedule as availability of I' milk permits. All deviations from the sample schedule will be reported in the Annual Radiological Environmental Surve'111ance Report.
Revision 22 Date 7/13/98 l
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APPENDIX I I RADIOACTIVE LIQUID, GASEvUS, AND SOLID WASTE TREATME'IT SYSTEMS Reauirement: Technical Specification 6.14.A 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.
Resoonse: There were no licensee-initiated major changes to the radioactive waste systems during I this reporting period.
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I APPENDIX J ON-SITE DISPOSAL OF SEPTIC WASTE AND COOLING TOWER SILT Requirement: Off-Site Dose Calculational Manual, Appendices B and F requires that the dose impact due to on-site disposal of septic waste and the cooling tower silt during the reporting year and from previous years be reported to the Commission in the Annual Radioactive ,
Effluent Report if disposals occur during the reporting year. VYNPC will report in the l Annual Radiological Effluent Release Report a list of the radionuclides present and the total radioactivity associated with the on-site disposal activities at Vermont Yankee.
Response: There was one on-site disposal of septic waste during the reponing year, and one on-site disposal of cooling tower silt during the reponing year. The total volume of the septage spread was approximately 11,000 gallons. The total volume of cooling tower silt was approximately 1.60E+05 gallons The total activity spread on the 1.9 acres (southern) on-site disposal field from 1993 spreadings and from previous years was:
Nuclide Activity (Ci) j Mn-54 3.23E-07
! Co-60 1.13E-05 Zn-65 1.41E-07 Cs-137 6.13E-05 The projected hypothetical dose from on-site disposals of septic waste and cooling tower silt will be included in the Supplemental Annual Radioactive Effluent Release l Report for 1998.
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