Text

Annual Effluent & Waste Disposal Rept for Operating Period Jan-Dec 1995
	ML20107L871
Person / Time
Site:	Summer
Issue date:	12/31/1995
From:	Blue L, Gowdy G, Orr J; SOUTH CAROLINA ELECTRIC & GAS CO.
To:	;
Shared Package
ML20107L868	List: ML20107L866; ML20107L871; ML20107L877;
References
	NUDOCS 9604300063
	Download: ML20107L871 (82)
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a ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT FOR"!ME OPERATING PERIOD January 1,1995 - December 31,1995 April 1996

( '

V. C. SUMMER NUCLEAR STATION SOUTH CAROLINA ELECTRIC AND GAS COMPANY Prepared by:

ff e'alth Physicist Approved by: Reviewed by:

.6 L'A. Blue, Manager h

Health Physics and G.M. G6wdy (

Staff Health Physic)st i

Radwaste Services hb0 SDobk 0500$395 R PDR t

ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT

' January - Drctmb:r,1995 H Virgil C. Summer Nuclear Station South Carolina Electric & Gas This report is being submitted as a summary of quantities of radioactive liquid and gaseous effluents and solid waste released from the Virgil C. Summer Nuclear Station.

This report satisfies the requirements in Sections 6.9.1.8 and 6.14.2 of Technical Specifications, Section 1.6.2 of the Offsite Dose Calculation Manual (ODCM), and 10CFR50.36(a). Also included is an assessment of radiation doses from plant releases.

A brief discussion of the Supplemental Information and Tables 2 through 6 is presented in Sections A through D. An evaluation of the radiological impact on man due to operation of the Virgil C. Summer Nuclear Station is presented in Section E and Table 1. A summary of the meteorological data for 1995 is presented in Section F and Tables 7 and 8. Changes made to the Offsite Dose Calculation Manual (ODCM) during the 12 month period are summarized in Section G and co)ies of the ODCM are presented in Attachment I and 11. Section H gives a summary o" oil incineration during the year.

A. Supplementallnformation Regulatory limits for doses and maximum permissible concentrations presented in Supplemental Information are from the Virgil C. Summer Nuclear Station Techn,i cal Specifications and 40 CFR 190. Average energy (E) is not a aplicable to the method for determining release rate limits for fission anc activation gaseous effluents; therefore, it has been omitted.

B. Gaseous Effluents Gaseous effluents released from ground level are summarized in Tables 2 and

3. An elevated release pathway does not exist at Virgil C. Summer Nuclear '

Station. Cumulative doses are discussed in Section E.

The errors for gaseous effluent totals are given as the square root of the sum of ,

squares of counting errors and flow or volume measurement errors. A l systematic error of 15% has been added to estimate total error.

C. Liquid Effluents Liquid effluents are summarized in Tables 4 and 5. Estimated total errors are expressed as in Section B above.

D. Solid Waste Shipments Solid waste shipments are summarized in Table 6. Curie content of radioactive waste packages is determined by dose rates and/or analysis of samples by gamma spectroscopy. The total error for each type of Curie content determination is conservatively estimated to be the sum of a 15% systematic error and a 20% photon response error for the detector used.

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ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT i

l January- Dtccmbcr,1995 j - Virgil C. Summer Nclear Station

South Carolina Electric & Gas 4

E. RadiologicalImpact on Man Potential doses to the maximum exposed individual in the unrestricted area ,

were' calculated using measured plant gaseous effluent and meteorological data in accordance with the Offsite Dose Calculation Manual. The source term waste gas decay tank J involved inch Reactorseven Build(7)ing purge releases and(WGDT), releases,179.22 a continuous 12-month days of 36-main plant

vent release. Gaseous releases from 19 hours2.199074e-4 days 0.00528 hours 3.141534e-5 weeks 7.2295e-6 months of oil incineration were also included. Doses are summarized in Table 1. The total activities released are presented in Tables 2 and 3. The highest quarterly air doses to the maximum exposed individual due to noble gases were 1.88E-3 and 7.41E-4 m'ad for gamma snd beta, respectively durina the second quarter. The maximum quarterly organ dose attributed to tlie releases was 9.81E-4 mrem for the second c uarter. Cumulative annual doses were 2.13E-3 mrad,1.30E-3 mrad and 9.87 E-4 mrem for gamma, beta and organ dose, respectively.

Measured plant liquid effluent data was used to calculate estimates of doses to individuals in accordance with the Offsite Dose Calculation Manual. The source term consisted of the isotopic contents of 166 Waste Monitor . Tank batch releases,26.44 days of Steam Generator Blowdown releases and a continuous Turbine Building Sump nelease. Doses are summarized in Tabie 1 and total radioactivity released is described in Tables 4 and 5. The highest quarterly total body dose to the maximally exposed individual due to the release of radioactive liquid was 1.43E-3 mrem during the second quarter. The highest organ dose was 9.83E-3 mrem to the gastro-intestinal tract / lower large for the first quarter. Cumulative annual doses for the intestine hypothetical (GI-LLI)max imally exposed individual were.5.16E-3 mrem and 1.46E-2 mrem for the total body and gastro-intestinal tract / lower large intestine (maximum annual organ), respectively. The GI-LLI was the maximum exposed organ for all four quarters of 1995.

Dose rates and concentrations were below the limits specified in Supplemental Information, Section 2a, b and c during all the effluent releases.

Radiation doses from radioactive effluents to members of the public due to their activities inside the site boundary were assessed in a manner different from that in the Offsite Dose Calculation Manual. Monthly thermoluminescent dosimetry 10 data from eight (d)the site boundary perimeter were analyzed a and ten (d ith compare w)respective locationspre-operational aroun background and previous year l history. Results showed that 1995 monthly dose rates did not differ I significantly from the pre-operational or 1994 dose rates. It was concluded that doses to members of the public' inside the site bounda.,y were i indistinguishable from normal background dose.

Radiation doses from radioactive effluents to workers at the Fairfield Hydro Station for the 12 month period were calculated to be 1.62E-4 and 9.8BE-5 mrad for gamma and beta, respectively.

l l

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ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT JANUARY - DECEMBER 1995 Virgil C. Summer Nuclear Station South Carolina Electric & Gas Table 1 GASEOUS AND LIQUID DOSES FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER TOTAL ODCM Percent Percent Percent Percent ANNUAL Section GASEOUS LIMITS DOSE of Limit DOSE of Limit DOSE of Limit DOSE of Limit DOSE 1.2.3.1.a,b 5 mrad gamma / qtr. 2.46E-04 mrad 4.92E-03 1.88E-03 mrad 3.77E-02 3.02E-07 mrad 6.05E-06 2.73E-07 mrad 5.47E-06 2.13E-03 10 mrad gamma 1yr. 2.46E-03 2.13E-02* 2.13E-02* 2.13E-02*

1.2.3.1.a.b 10 mrad beta / qtr. 4.94E-04 mrad 4.94E-03 7.41E-04 mrad 7.41 E-03 3.43E-05 mrad 3.43E-04 3.00E-05 mrad 3.00E-04 1.30E-03 g 20 mrad beta / yr. 2.47E-03 6.17E-03* 6.35E-03* 6.49E-03*

to

$ 1.2.4.1.a,b 7.5 mrem organ /qtr 15 mrem organ /yr.

G 0 0

9.81E-04 mrem 1.31 E-02 6.54E-03 5.56E-06 mrem 7.42E-05 6.57E-03*

2.18E-07 mrad 2.91E-06 9.87E-04 6.58E-03*

LlQUID LIMITS 1.1.3.1a,b 1.5 mrem / qtr. 1.31E-03 mrem 8.72E-02 1.43E-03 mrem 9.56E-02 1.11E-03 mrem 7.42E42 1.31E-03 mrem 8.74E-02 5.16E-03 3.0 mrem / yr. 4.36E-02 9.13E-02* 1.28E-01* 1.72 E-01*

1.1.3.1a,b 5 mrem organ /qtr 9.83E-03 mrem 1.97E-01 1.92E-03 mrem 3.85E-02 1.46E-03 mrem 2.92E-02 1.43E-03 mrem 2.86E-02 1.46E-02 10 mrem organ /yr. 9.83E-02 1.18E-01* 1.32E-01

1.46E-01*

Includes contribution from previous quarters

ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT January- December,1995 Virgil C. Summer Nuclear Station .

South Carolina Electric & Gas Radiation doses from nearby uranium fuel cycle sources were not assessed. The ODCM, Sections 1.3.1 and B/1.3 establish a five (5) mile limit beyond which doses from nearby plants are insignificant. There are no uranium fuel cycle plants within a five (5) mile radius of Virgil C. Summer Nuclear Station.

F. Meteorology The meteorology data for 1995 is summarized in Table 7 by quarter. The data are shown as joint frequency distributions of wind direction and speed by atmospheric stability class. Table 8 provides the same information for those hours during which batch releases occurred.

The wind direction and wind speed data used in the summary were acquired from the 10 meter level of the primary monitorinc' tower. Stability was determined by the pnmary differentia temperature (61 to 10 meter).

The combined annual data recovery for wind direction, wind speed and stability was 94.5%. Primary variable recovery rates were as follows: wind direction (10 m)- 98.5%, wind speed (10 m)

- 97.7%, and differential temperature (61 - 10 m) - 98.4%.

G. Offsite Dose Calculation Manual The Virgil C. Summer Nuclear Station (VCSNS) Offsite Dose Calcu-lation Manual (ODCM) was revised twice during the affected 12 month period.

Revision 19 changed the reporting frequency of the radioactive effluent release report from semiannual to annual in reponse to revision of 10CFR50.36 (a). The ODCM revision is being made consistent with the corresponding Technical Specification change (Amendment 117).

ODCM revision 19 also includes specific offsite dose and dose rate limits for control of waste oil incineration. The limits specified in this revision are the same as those stated in the Application for Approval to incinerate Oil Contaminated with Very Low Levels of Licensed Radioactive Material (Oil incineration Application) submitted to the Bureau of Radiological Health, South Carolina Department of Health and Environmental Control (SCDHEC).

These limits restrict the radioactive gaseous effluent discharge during oil incineration to a small fraction (0.1%) of V.C. Summer Station gaseous effluent limits. ODCM equation 60, which limits ,

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ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT

$ January - December,1995 Virgil C. Summer Nuclear Station

South Carolina Electric & Gas

'; oil incineration burn rate, was changed for consistency with the revised oil incineration release specifications limiting offsite dose rate (maximum or,gan) to 1.5 mrem / year. The maximum offsite organ dose resultmg from oil incineration has been revised to O.015 mrem.

ODCM revision 19 further restricts offsite dose and dose rate resulting from oil incineration to a small fraction of Summer j Station limits. This ensures that the consequence of oil incineration remains minimal and that Summer Station gaseous effluent limits will not be exceeded. Therefore, this ODCM revision does not represent a change to the 10CFR50 Appendix i based Summer Station offsite dose hmits or a decrease in the level

, of control required for demonstrating compliance with 2

10CFR20.106 (or revised 10CFR20.1302). -

Since Summer Station offsite dose and dose rate limits are not affected by this revisbn and since controls for oil incineration are i

established as a small fraction of Summer Station limits, the changes included in ODCM revision 19 did not result in a reduction in effluent control required by 10CFR20.106,40CFR190, 10CFR50.36 (a) or Appendix I to 10CFR50. A detailed description of the change as well as Revision 19 of the ODCM is in Attachment 1.

Revision 20 of the ODCM involves reduction of radiological environmental program sampling requirements and establish-ment of an alternate release pathway for contents of the RWST pit drain tank as well as a release pathway for waste collected from the NaOH spraytank.

Reductions in sampling requirements are based on review of previous monitoring results and VCSNS effluent history. Highest anticipated offsite locations for each pathway will continue to be monitored. Therefore, the suggested changes will not impact program quality or com aromise the Radiological Environmental Monitoring Program's ability to credibly monitor the maximum offsite dose resulting from release of radioactive effluents from VCSNS. These changes are described in the detail in the attached summary.

With the present effluent release controls, detectable levels of radioactive contamination in the RWST pit drain tank (" rainwater tank") require the use of the liquid waste processing system for release to the environment. As a result, drain tank contents with minimal levels of contamination have fouled resin beds and resulted in considerable radwaste disposal cost. Contamination of NaOH tank contents has resulted in management of NaOH spray Page5

j ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT January- December,1995

) Virgil C. Summer Nuclear Station j South Carolina Electric & Gas l

tank waste by storage in drums since release of radioactive l material through the neutralization basin is not recognized as a i release pathway for radioactive materials. The neutralization i basin is recognized, however, for treatment of caustic waste from !

the NaOH spray tank. Revision 20 of the ODCM establishes 1 controls for release of snyll quantities of radioactive materials from the RWST drain tanfand NaOH tank to the neutralization basin (Outfall 007). The neutralization basin can be mixed, sampled, and released directly through circulating water to Lake .

Monticello. Administrative controls are specified in this revision that restrict the radioactive liquid effluent discharged to<1% of V.C. Summer Station 31-day unprocessed liquid effluent limits (per release) and <5% of the same limits (per calendar month). These discharge limits ensure that release of radioactive material through this pathway remain a small fraction of annual release limits (< 1 %).

ODCM Revision 20 allows radioactive material releases through outfall 007 (despite the lack of a radiation monitor for this pathway) because representative samples can be taken prior to any effluent batch release, effectively controlling release quantities. If stringent screening criteria are met, contaminated hcuid from the rain tank, NaOH tank, or stored NaOH may be rel eased into the NaOH sump and pumped to the neutralization basin. The resulting solution in the neutralization basin is recirculated, sampled and the batch permit finalized prior to release to circulating water. This sampling program ensures that the consequence of unprocessed effluent releases through this pathway remain minimal and that Summer Station liquid limits will not be exceeded. -

This revision of the ODCM does not affect any setpoint methodology employed in the ODCM. . Dose calculation methodology required for the described NaOH sump /

neutralization basin release pathway is established consistent with other liquid release aathway dose calculation methodology.

Since Summer Station of" site dose and dose rate limits are not affected by this revision and since controls for release of radioactive materials through the neutralization basin are established as a small fraction of Summer Station limits, the changes included in ODCM Revision 20 do not represent a reduction in effluent control required by 10CFR20.1302 (10CFR20.106), 40CFR190, 10CFR50.36 (a) or Appendix I .to 10CFR50.

A detailed description of the changes as well as Revision 20 of the ODCM is in the Attachment II.

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1 ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT January- December,1995 Virgil C. Summer Nuclear Station South Carolina Electric & Gas H. Oillncineration Gaseous releases from oil incineration were minimal during 1995.

The incinerator operated for a period of 19 hours2.199074e-4 days 0.00528 hours 3.141534e-5 weeks 7.2295e-6 months , burning 146 gallons of oil at 7.7 gal /hr. The incinerated oil contained Co-60, Mn-54 and tritium at concentrations of 3.69E-8, 6.52E-9 and 1.35E-5 uCi/ml, respectively. The annual organ dose from the incinerated oil was 7.65E-5 mrem.

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ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT.

January - D:ccmb:r,1995 Virgil C. Summer Nuclear Station South Carolina Electric & Gas SupplementalInformation

1. Regulatory Limits:

a. Fission and Activation Gases:

The air dose to an individual due to noble gases released in gaseous effluents shall be limited to less than or equal to 5 mrad for gamma radiation and 10 mrad for beta radiation during any calendar quarter and 10 mrad for gamma radiation and 20 mrad for beta radiation during any calendar year (ODCM, Section 1.2.3.1).

b. lodines, Particulates (half-lives > 8 days) and Tritium:

The dose to an individual from radioiodines, tritium and radioactive materials in particulate form with half-lives greater than 8 days in

. gaseous effluents shall be limited to less than or equal to 7.5 mrem to any organ during any calendar quarter and 15 mrem to any organ during any calendar year (ODCM, Section 1.2.4.1).

c. Liquid Effluents:

The dose or dose commitment to an individual from radioactive materials in liquid effluents released shall be limited to less than or equal to 1.5 mrem to the total body and 5 mrem to any organ during any calendar quarter and 3 mrem to the total body and 10 mrem to any organ during any calendar year (ODCM, Section 1.1.3.1).

d. All Sources:

The annual dose equivalent shall not exceed 25 mrem to the whole body,75 mrem to the thyroid and 25 mrem to any other organ (40 CFR 190).

2. Maximum Permissible Concentrations:

a. Fission and Activation Gases:

i The dose rate in unrestricted areas due t(. radioactive materials released in gaseous effluents shall be limited to less than or equal to ,

500 mrem / year to the total body and less tr.an or equal to 3000 l mrem / year to the skin (ODCM, Section 1.2.2.1). I

b. lodines, Particulates (half-lives > 8 days) and Tritium:

The dose rate in unrestricted areas due to radioactive materials in effluents shall be limited to less than or equal to 1500 mrem / year to any organ (ODCM, Section 1.2.2.1).

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ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT l January- December,1995 Virgil C. Summer Nuclear Station l South Carolina Electric & Gas i Supplementalinformation I

c. Liquid Effluents:

The concentration of radioactive materials released from the site 1 shall be limited to the concentrations specified in 10 CFR 20 Appendix B, Table ll, Column 2 for radionuclides other than dissolved or entrained noble gases. For dissolved or entrained noble gases, the concentration shall be limited to 2E-4 pCi/ml total activity (ODCM, i l Section 1.1.2.1).

3. Average Energy:

l Not Applicable

4. Measurements and Approximations of Total Radioactivity:

l

, a. Fission and activation gases: Gamma spectrometry (HPGe) )

' \

b. lodines: Gammaspectrometry(HPGe) l

c. Particulates: . Gamma spectrometry (HPGe beta proportional

, counting, alpha proport,onal i co)u, nting ,

l l d. Tritium: Liquid scintillation

e. Liquid effluents: Gamma spectrometry (HPGe), liquid scintillation (H- i 3), be,ta proportional counting, alpha proportional '

i counting )

5. Batch Releases:

a. Gaseous:

1. Number of batch releases: 7

2. Total time period for batch releases: 2.10E + 3' min i

3. Maximum time period for a batch release: 4.20E+ 2 min l

l

4. Average time period for a batch release: 3.00E + 2 min

5. Minimum time period for a batch release: 1.80F.+ 2 min

b. Liquid:

1. Number of batch releases:

t 68 For first quarter,1995

42 For second quarter,1995 1

I 30 For third quarter,19c5 26 For fourth quarter,1995 Page 9

' ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT January- D:ctmb:r,1995 Virgil C. Summer Nuclear Station South Carolina Electric & Gas SupplementalInformation

2. Total time period for batch releases:

5.25E + 3 min. for first quarter,1995 3.18E + 3 min. for second quarter,1995 2.19E + 3 min. for third quarter,1995 1.95E+3 min.for fourth quarter 1995

3. Maximum time period for a batch release:

8.70E + 1 min. for first quarter,1995 1.66E + 2 min. for second quarter,1995 8.80E+1 min.forthird quarter,1995 9.00E + 1 min. for fourth quarter,1995

4. Average time period for batch releases:

7.72E + 1 min. for first quarter,1995 7.56E + 1 min. for second quarter,1995 7.29E+1 min.forthird quarter,1995 7.49E + 1 min. for fourth quarter,1995 ;

5. Minimum time period for a batch release:

7.00E + 1 min, for first quarter,1995 4.00E + 1 min. for second quarter,1995 1.30E+1 min for third quarter,1995 -

6.20E + 1 min.for fourth quarter,1995

6. Average stream flow during periods of release of effluent into a flowing stream for 1995:

3.53E + 6 gpm for first quarter,1995 4.50E + 6 gpm for second quarter,1995 6.41E+ 6 gpm for third quarter,1995 3.12E + 6 gpm for fourth quarter,1995

6. Abnormal Releases: l

a. Gaseous: i

1. Number of releases: 0

2. Totalactivityreleased: 0

b. Liquid:

1. Number of releases: 0

2. Total activity released: 0 !

Page 10

t I

ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT January - December 1995 l

l Virgil C. Summer Nuclear Station I South Carolina Electric & Gas Table 2 Gaseous Effluents Summation of All Releases UNITS FIRST SECOND THIRD FOURTH 1995 EST.

QTR QTR QTR QTR TOTAL ERROR %

A. Fission & Activation Gases

1. Total release Ci 1.10E+00 1.52E+00 8.80E-02 7.71 E-02 2.79E+00 32.4

2. Average release rate uCi/ sec 1.42E-01 1.93E-01 1.11 E-02 9.70E-03 8.85E-02

3. Percent ODCf.1 Otr. gamma air dose limit % 4.92E-03 3.77E-02 6.05E-06 5.47E-06 N/A

4. Percent ODCM annual gamma air dose limit % 2.46E-03 2.13E-02" 2.13E-02" 2.13E-02" 2.13E-02

5. Percent ODCM Otr. beta air dose limit % 4.94E-03 7.41E-03 3.43E-04 3.00E-04 N/A y 6. Precent ODCM annual beta air dose limit % 2.47E-03 6.17E-03" 6.35E-03" 6.49E-03" 6.49E-03 to (D

a B. lodines 1.Totaliodine - 131 Ci 0 0 3.03E-07 0 3.03E-07 68.5

2. Average release uCi/ sec 0 0 3.81E-08 0 9.61E-10 C. Particulates

1. Particulates with half - lifes > 8 days Ci 0 6.23E-07 0 2.40E-08* 6.47E-07 63.7

2. Average release rate uCi / sec 0 7.93E-08 0 3.02E-09 2.05E-08

3. Gross alpha radioactivity Ci 0 0 0 0 0 D. Tritium

1. Total release Ci 0 1.86E+00 0 7.46E+00* 9.32E+00 21.1

2. Average release rate uCi / sec 0 2.36E-01 0 9.39E-01 2.96E-01 E. Organ Dose (from B,C,and D)

1. Percent ODCM Otr.' organ dose limit % 0 1.31E-02 7.42E-05 2.91 E-06* N/A

2. Percent ODCM annual organ dose limit % 0 6.54E-03" 6.57E-03" 6.58E-03" 6.58E-03

From oil incinerator (19 hr. total release )

- Cumulative

t a !

ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT i

January Table 5 December,1995 LIQUID EFFLUENTS i Continuous Mode Batch Mode i First Second I hird Fourth l Annual First l5econd t hird tourth Annual i Nuclides Releasedt Unit Ouarter Quarter Ouarter Ouarter I Total Quarter i Ouarter Quarter Quarter Total Strontium-89 Ci 0 0 0 9.27E-5 9.27E-5 2.43 E-5 7.39 E-6 1.44 E-5 2.57E-5 7.18E-5 '

Strontium-90 Ci 0 0 0 0 0 2.54 E-5 1.53 E-5 7.84 E-6 1.86E-6 5.04E-5 i Cesium-134 Ci 0 0 0 0 0 2.37 E-4 2.35 E-5 5.12E-5 7.75 E-5 3.89E-4 f Cesium-137 Ci 0 0 0 0 0 4.89E-4 6.87 E-5 1.56E-4 2.71 E-4 9.85E-4 ;

lodine-131 [ Ci 0 0 0 0 0 6.10 E-6 4.84E-6 0 1.85E-5 2.94E-5 {

f Cobalt-58 Ci 0 0 0 0 0 1.27 E-2 3.83 E-3 4.56E-3 2.04E-3 2.31 E-2 l Cobalt-60 Ci 2.12E-5 0 0 0 2.12E-5 1.99E-2 3.19E-3 4.09E-3 8.32E-3 3.55E-2 i Iron-59 Ci 0 0 0 0 0 2.65E-4 5.64 E-6 0 0 2.91 E-4 l Zinc-65 Ci 0 0 0 0 0 4.64E-4 0 0 8.01 E-5 5.44E-4 l Manganese-54 Ci 0 0 0 0 0 3.22 E-3 5.79 E-4 1.09E-3 1.59E-3 6.48E-3 l Chromium-51 Ci 0 0 0 0 0 4.01 E-3 1.23 E-4 0 0 4.13 E-3 Zirconium-Ntobium-95 Ci 0 0 0 0 0 5.93 E-3 3.67E-4 3.09 E-4 1.08 E-4 6.72 E-3 i Molybdenum-99 Ci 0 0 0 0 0 0 0 0 0 0 t 8 Technetium-99m Ci 0 0 0 0 0 0 0 0 0 0 f

$ Barium-Lanth.-140 Ci 0 0 0 0 0 0 4.92 E-6 0 0 4.92 E-6 y Eerium-141 Ci 0 0 0 0 0 0 0 0 0 0 Mer: Fe-55 Ci 0 0 3.5 E-4 6.7 E-4 1.02 E-3 5.72 E-3 7.4 / E-3 7.46 E-3 3.63 E-3 2.43 E-2 Co-57 Ci 0 0 0 0 0 1.21 E-4 1.33 E-5 2.88E-5 2.93 E-5 1.92 E-4 I Ru-106 Ci 0 0 0 0 0 7.35 E-5 0 0 0 7.3 5 E-5 Aq-110m Ci 0 0 0 0 0 3.88E-4 2.40E-5 3.44 E-6 1.44 E-5 4.30E-4 Sn-113 Ci 0 0 0 0 0 4.17 E-4 2.08E-5 1.03 E-5 1.94E-5 4.68E-4 l Sb-124 Ci 0 0 0 0 0 2.86E-5 8.50E-5 1.22E-5 1.51 E-6 1.27 E-4 l Sb-125 Ci 0 0 0 0 0 1.67 E-3 3.57 E-3 6.53 E-4 1.20E-3 7.09E-3 !

Unidentified: None Ci 0 0 0 0 0 0 0 0 0 0 ITotal for Period (above) I Ci l 2.12E-5 1 0 1 3.85E-4 1 7.30E-4 1 1.13E-3 11 5.57E-2 1 1.94E-2 1 1.84E-2 1 1.74E-2 1 1.11 E-1 I t

Xenon-133 Ci 0 0 0 7.54 E-7 7.54E-7 1.85E-3 1.56 E-4 1.29 E-5 5.62E-5 2.08E-3 Xenon-135 Ci 0 0 0 5.43 E-6 5.43 E-6 8.42 E-5 0 0 0 8.42 E-5 i Other: Ar-41 Ci 0 0 0 0 0 1.87 E-5 0 0 0 1.87E-5 !

Kr-85m Ci 0 0 0 0 0 3.63 E-6 0 0 0 3.63E-6 Unidentified: None Ci 0 0 0 0 0 0 0 0 0 0 Total entrained cases Ci 0 0 0 6.18E-6 6.18E-6 1.96E-3 1. 56 E-4 1.29E-5 5.62 E-5 2.19E-3 i i Tritium not included. See Table 4 for tritium numbers. ,

ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT January - December 1995 Virgil C. Summer Nuclear Station South Carolina Electric & Gas Table 4 Liquid Effluents Summation of All Releases UNITS FIRST SECOND THIRD FOURTH 1995 EST.

QTR QTR QTR QTR TOTAL ERROR %

A. Fission & Activation Products

1. Total release Ci 5.58E-02 1.94E-02 1.88E-02 1.82E-02 1.12E-01 18.8

2. Average diluted concentration uCi/ ml 1.65E-10 5.97E-11 5.78E-11 5.97E-11 8.68E-11 B. Tritium

1. Total release Ci 4.36E+01 1.18E+02 7.33E+01 7.06E+01 3.06E+02 18.4

2. Average diluted concentration uCI/ ml 1.29E-07 3.63E-07 2.25E-07 2.32E-07 2.37E-07 5

to C. Dissolved and entrained gases

1. Total release Ci 1.96E-03 1.56E-04 1.29E-05 6.24E-05 2.19E-03 47.0

" 2. Average diluted concentration uCi / ml 5.78E-12 4.81E-13 3.98E-14 2.05E-13 1.70E-12

3. Percent ODCM limit % 2.89E-06 2.41 E-07 1.99E-08 1.03E-07 8.49E-07 D. Gross alpha radioactivity

1. Total release Ci 0 0 0 0 0 E. ODCM limits ( from A and B )

1. Percent of ODCM Otr total body limit % 8.72E-02 9.56E-02 7.42E-02 8.74E-02 N/A

2. Percent ODCM annual total body limit % 4.36E-02 9.13E-02* 1.28 E-01

1.72E-01* 1.72E-01

3. Percent ODCM Otr max organ limit % 1.97E-01 3.85E-02 2.92E-02 2.86E-02 N/A

3. Percent ODCM annual max. organ limit % 9.83E-02 1.18E-01* 1.32E-01

1.46E-01

1.46E-01 E. Volume of waste released (undiluted) liters 4.01E+07 2.42E+07 1.58E+07 1.69E+07 9.70E+07 3.0 F. Volume of dilution water liters 3.38E+11 3.25E+11 3.25E+11 3.04E+11 1.29E+12 4.3

Cumulative

i ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT !

January-D ccmber,1995 Table 3 GASEOUS EFFLUENTS -- GROUND-LEVEL RELEASES Continuous Mode- Batch Mode i First 5econd Ihlrd l Fourth Annual First Second Third Fourth Annual Nuclides Released Unit I OuarterOuarter Ouarter i Ouarter Total Ouarter Ouarter Ouarter Ouarter Total *

1. Fission gases l Krypton-85 Li U U U U U 4.63 t- 1 3.14t-1 8.80t-2 /./Ut-2 9.42 t- 1 l Krypton-85m Ci 0 0 0 0 0 0 2.19E-4 0 0 2.19E-4 Krypton-87 Ci 0 0 0 0 0 0 0 0 0 0 !

Krypton-88 Ci 0 3.85E-1 0 0 3.85 E-1 0 0 0 0 0 i Xenon-133 Ci 0 1.67E-1 0 0 1.67 E-1 1.26E-3 5.16E-2 0 1.29E-4 5.30E-2 [

Xenon-135 Ci 6.37 E-1 2.51 E-1 0 0 8.88E-1 0 2.88E-2 0 0 2.88E-2 l Xenon-135m Ci 0 0 0 0 0 0 0 0 0 0 l Xenon-138 Ci 0 0 0 0 0 0 0 0 0 0 i Other: Ar-41 Ci 0 3.19E-1 0 0 3.19E-1 0 0 0 0 0 Xe-133m Ci 0 0 0 0 0 0 2.03 E-3 0 0 2.03 E-3 !

Unidentified: None Ci 0 0 0 0 0 0 0 0 0 0

?

u:2 Total for period Ci 6.3 7E-1 1.12 E + 0 0 0 1.76E + 0 4.65E-1 3.97E-1 8.80E-2 7.71 E-2 1.03 E + 0 [-

4 m

2. lodines and other halogens l A lodine-131 Li O U 3.03t-7 U 3.U3 t-/ U U U U U r lodine-133 Ci 0 0 0 0 0 0 0 0 0 0 -

lodine-135 Ci 0 0 0 0 0 0 0 0 0 0 :

Bromine-82 Ci 0 4.44E-7 0 0 4.44E-7 0 0 0 0 0 Total for period Ci 0 4.44E-7 3.03E-7 0 7.47 E-7 0 0 0 0 0

3. Particulates l 5trontium-89 LI U U U U U U U U U U 5trontium-90 Ci 0 0 0 0 0 0 0 0 0 0 l Cesium-134 Ci 0 0 0 0 0 0 0 0 0 0 Cesium-137 Ci 0 0 0 0 0 0 0 0 0 0 !

Barium-Lanth.-140 Ci 0 0 0 0 0 0 0 0 0 'O Others: Mn-54 Ci 0 0 0 0 0 0 0 0 3.60E-9

3.60E-9

Co-58 Ci 0 5.50E-7 0 0 5.50E-7 0 0 0 0 0-Co-60 Ci 0 7.37 E-8 0 0 7.37 E-8 0 0 0 2.04E-8* 2.04 E-8

l' Rb-88 Ci 0 3.48E-2 0 0 3.48E-2 0 0 0 0 0 Cs-138 Ci 0 3.56E-3 0 0 3.56E-3 0 0 0 0 0 Unidentified: None Ci 0 0 0 0 0 0 0 0 0 0 Total for period Ci 0 3.84E-2 0 0 3.84E-2 0 0 0 2.40E-8 2.40E-8

From n3 'nrinnrator.

l

ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT January Table 6 December,1995 SOLID WASTE AND IRRADIATED FUEL SHIPMENTS A. Solid Waste Shipped Offsite for Burial or Disposal (Not irradiated fuel.)

Type of waste 5 T Unit (ta E$t;9r Er a.5 pent resins, filter sludges, m3 2.40E + 0 evaporator bottoms, etc. Ci 2.44E + 1 3.50E + 1

b. Dry compressible waste, m3 8.90E + 0 contaminated equip., etc. Ci 8.44E-1 3.50E + 1

c. Irradiated components, m8 0 control rods, etc. Ci 0 N/A d.Other (describe) m3 0 Ci 0 N/A

2. Estimate of major nuclide composition for the year (b ype of waste) for concentrations above 1.0% (listed in descending order by activity lev

a. Fe-55 % 43.85 Nb-95 % 10.31 Co-58 % 10.24 Co-60 % 7.65 Zr-95 % 6.66 !

H-3 % 4.56 Ni-63 % 4.35 C-14 % 4.14 Cr-51 % 3.22 Mn-54 % 2.38

b. Fe-55 % 53.23 Co-60 % 16.49 Ni-63 % 9.80 Co-58 % 7.06 Mn-54 % 4.03 Nb-95 % 2.15 Cs-137 % 1.88 Cr-51 % 1.24 Zr-95 % 1.12 l Sb-125 % 1.06 _

c. None % N/A ;

d. None % N/A

3. Solid Waste Disposition i

Number of Shipments Mode of Transportation Destination T49 Truck Barnwell, SC tNote: 48 are partial shipment of DAW from waste processor to Barnwell, SC, B. Irradiated Fuel Shioments (Disposition) )

Number of Shipments Mode of Transportation Destination 1 Truck Chalk River, Canada Page 15

TABLE 7 l JOINT FREQUENCY DISTRIBUTION 1

I BY QUARTER 1995 l 1

I l

l

i i

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS 1

SITE: V. C. SUMMER Nuclear Station-UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 '

Stability Class: A delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter l Hours at Each Wind Direction and Speed '

4 Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- 24 Total' Speed N 0 O O O O O O '0.00 ;

NNE O O O O O O 0 0.00 NE l O O 0 0 0 0 0 0.00 i ENE 0 0 0 0 0 0 0 0.00 I E 0 0 0 0 0 0 0 0.00 ESE O O O O O O 0 0.00 SE l O O O O O 0 0 0.00 SSE O O O O O O O 0.00 l S 0 1 0 0 0 0 1 5.20 i SSW 0 2 2 0 0 0 4 7.86 I SW 0 11 8 0 0 0 19 7.36 WSW 0 2 12 3 0 0 17 10.22 W 0 2 0 1 0 0 3 9.27 WNW 1 2 0 0 0 0 3 5.16 NW 0 i 0 0 5 0 0 5 14.95 '

NNW 0 0 0 1 1 0 2 19.77 i Total 1 20 22 10 1 0 54 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hobrs of Missing Data : 0 Hours of Missing Data for All : 8 Hours of No Stability Class : 9 Total hours of observation : 2160 l i

l l

l o

- . _ - . . . - . . . .- . - .. . . - . ~ , . . . ~ . . . - - . . ~ . - . - - . . - . . . ~ ~ . . - . . . . . - . . . . . - - . . . . . -

t JOINT WIND. FREQUENCY DISTRIBUTION BY STABILITY CLASS i-SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date': 96-04-11:

Data Period : 95 1 01:00 . to .95 4- 1 00:00 Stability Class: B delta T/ delta z- 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter .

' Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour) '

Direction Mean 0.75- <4 4 .<8 8- <13 13- <19 19- 24 >24 Total' Speed N O -0 0 0 0 0 'O 0.00 NNE O O O O O O O 0.00 NE O O O O O 0 0 0.00

.ENE O 1 0 0 0 0 1 7.07 E 1 0 0 0 0 0 1 3.39 ESE O 1; O -0 0 0 1 4.78 SE O -0 0 1 0 0- 1 13.35

SSE O 1 0 0 0 0 1 4.38 S 0 0 .0= 0 0 0 0 0.00 ;

SSW 0 4 3- 0 0 0 7 7.99 SW 0 9 5 0 0 0 14 7.60 WSW -0 7 10 3 0 0 20 9.23 W .1 0 6 4 0 0 11 10.40 WNW 0 2 2 0 0 0 4 7.64' NW' 2 2 2 1 0 0 7 7.51 -

NNW 0 4 0 2 0 0 6 8.77 S

Total' 4 31 28 11 0 0 74 1

Hours of Calm : 0 ,

Hours of Varying Wind Direction : 0 i Hours of Missing Data .

0 Hours of Missing Data for All : 8

. Hours of No' Stability C.1 ass

9

Total hours of observation : 2160 4

.E

.n-,- ,- , , , ,,- . 4 -- -a -,-n- - -a w - - . w .e

l 1

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS '

SITE: V. C. SUKKER Nuclear Station UNIT 1 l Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 i Stability Class: C delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed l

Wind Wind Speed (miles / hour)

Direction Mean )

13- <19 >24 0.75- <4 4- <8 8- <13 19- 24 Total' Speed N 1 2 0 2 1 0 6 10.57 l NNE 1 4 6 1 0 0 12 8.51 NE 1 3 2 1 0 0 7 7.27 l ENE 0 1 1 0 0 0 2 7.10 l E O 1 0 0 0 0 1 7.22 ESE O 1 0 0 0 0 1 5.67 SE O 1 0 5 0 0 6 13.65 SSE 0 0 1 1 0 0 2 12.21 S 0 1 0 0 0 0 1 5.55 )

i SSW 1 6 2 0 0 0 9 7.27 i SW 0 10 1 0 0 0 11 6.43 WSW 0 9 3 4 0 0 16 8.53 W 0 3 5 4 0 0 12 10.96 l l WNW 0 6 1 0 0 0 7 6.45 NW 0 4 1 0 0 0 5 6.64 NNW 2 2 0 5 0 0 9 10.82 Total 6 54 23 23 1 0 107 l

j Hours of Calm : 0 I Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 8 l Hours of No Stability Class : 9 Total hours of observation : 2160 l

l l

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 .

4 Data. Period : 95- 1-'1 01:00 to 95 1 00:00

. Stability Class: D delta T/. delta z- 61->10 m Delta ~T With Substitution Wind Sensor Height : 10 meter Hours at Eoch Wind Direction and Speed j Wind Wind Speed (miles / hour)

. Direction .

Mean ,

0.75 .<4 4 .<8 8- <13- 13--<19 .19- 24 >24 Total' Speed

-- - i N 8 25 15 14 5 0 157 9.66 NNE -7 30 43 '18 0 'O 98 9.37 NE 3 41 104- 18 0- 0 166 9.51 ENE 2 19 50 9 0 0 80 9.61 ;

E 2 29 14 0 0 0' 45 7.16. !

ESE 3 16 5- 0 0 0 24 ~6.67 i SE 1 16 13 12 0 0 -

42 10.17 SSE- 2 -15 13 4 0 0 34 8.37 S 6 14 7 7 0 0 34 8.38 ,

SSW 6 18 15 2 0 0 41 7.59 L 4

5W 10 40 7 1 0 0 58 6.07 WSW 9 25 28 4 0 .0 66 -8.06 W ~9 21 13 3 0 0 46 7.05 WNW 11 26 6 4 0 0 47 6.21 '

NW 9 20 10 4 l' 0 -44 7.28 NNW 14' 16 28 18 4 0 80 9.85 Total 102 371 371 .118 10 0 972 ;

Hours of Calm .

0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data-for All : 8 Hours of No Stability Class : 9 Total hours of observation : 2160 t

I JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS

. SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: E delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 8 11 6 0 0 0 25 5.93 NNE 8 7 3 1 0 0 19 5.65 NE 8 8 6 4 0 0 26 7.12 ENE 5 10 2 0 0 0 17 5.35 E 6 12 5 0 0 0 23 5.47 ESE 1 14 2 0 0 0 17 6.12 SE 7 '18 6 0 0 0 31 5.97 SSE 8 7 3 0 0 0 18 5.27 S 6 24 10 1 0 0 41 6.54 SSW 7 31 9 0 0 0 47 6.30 SW 17 44 22 0 0 0 83 6.24 WSW 11 53 18 0 0 0 82 6.34 W 19 42 12 0 0 0 73 5.57 WNW 6 19 1 0 0 0 26 4.78 NW 3 8 2 0 0 0 13 5.42 NNW 9 6 6 3 1 0 25 7.90 Total 129 314 113 9 1 0 566 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 5 Hours of Missing Data for All : 8 Hours of No Stability Class . 9 Total hours of observation : 2160

^

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS

SITE: V. C. SUMMER Nuclear Station' UNIT.1 ;

Report.Date : 96-04-11 !

Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: F ,-delta T/ delta z 61->10 m Delta T With Substitution

Wind Sensor Height-: 10 meter Bours at-Each Wind Direction and Speed Wind Wind Speed'(miles / hour)

Direction . _

. _Mean 0.75- <4 4 ,<8 8- <13 13 <19 19- 24 >24 Total' Speed N 2 3 0 0 0 0. 5' 3.83

,NNE 1 4 0 0' 0 0 5 5.52 NE- 4 3 0 0 0 0 7 4.47 ENE. 8 0 0 0 0 0 8 3.05 '

E ~2 4 0 0 0 0 6 4.14 ESE O 2 2 0 0 0~ 4 6.96

.SE 5 26 0 0 0 0 31 5.56 ,

SSE 4 34 1 0 .0 0 39 5.35 S 3 31 1 0 0 0 35 5.63 SSW 5 6 0 0 0 0- 11 4.57 '

'SW 7 8 0 0 0 0 15 3.68 WSW 14 7 0 0 0 0 21 3.39 W .10 10 0 0 0 0 20 .3.95

' WNW ' ' 1 7 0 0 0 0 8 4.65 NW 3 4 0 0 0 0 .7 3.95 NNW 2 4 ~0 0 0 0 6 4.43:

Total 71 153 4- 0 0 0- 228 Hours'of Calm : 0 Hours of Varying Wind Direction : 0 -

Hours cf Missing Data : 1 Hours of Missing Data for All

- : 8 Hours of No Stability Class : 9 Total hours of observation : 2160

1 JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: G delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction .Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 1 0 0 0 0 0 1 3.71 NNE- 1 0 0 0 0 0 1 2.54 NE O 2 0 0 0 0 2 4.82 ENE O 1 0 0 0 0 1 5.89 E- 0 0 -0 0 0 0 0 0.00 ESE 1 0 0 0 0 0 1 2.57 SC 4 3 0 0 0 0 7' 3.63 SSE 10 7 0 0 0 0 17 3.76 S 17 8 0 0 0 0 25 3.69 SSW 7 4 0 0 0 0 11 3.35 SW- 8 5 0 0 0 0 13 3.33 WSW '24 5 0 0 0 0 29 3.12 W 12 2 0 =0 0 0 E14 3.22.

WNW 9 3 0 0 0 0 12 3.08 NW 6 0 1 0 0 0~ 7 3.33 NNW 3 0 0 0 0 0- 3 :1.92 Total- 103 40 1 0 0 0 144 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data ..

0-Bours of Missing Data for All- : 8 Hours- of KO Stability Class : 9 Total-hours of observation : 2160

.. - . .- - - . . . , . .. . . - _ ~

d JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class:ALL delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind. Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 20 41 21 16 6 0 104 8.48 NNE 18 45 52 20 0 0 135 8.58 NE 16 57 112 23 0 0 208 8.92 ENE 15 32 53 9 0 0 109 8.36 E 11 46 19 0 0 0 76 6.36 ESE 5 34 9 0 0 0 48 6.36 SE 17 64 25 18 0 0 124 7.73 SSE 24 64 19 5. 0 0 112 6.16 S 32 79 18 8 0 0 137 6.23 SSW 26 71 31 2 0 0 130 6.52 SW 42 127 43 1 0 0 213 6.04 WSW 58 108 71 14 0 0 251 6.81 W 51 80 36 12 0 0 179 6.31 WNW 28 65 10 4 0 0 107 5.43 NW 23 38 16 10 1 0 88 6.84 NNW 30 32 34 29 6 0 131 9.22 Total 416 983 569 171 13 0 2152 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data for All : 8 Hours of No Stability Class : 9 Total hours of observation : 2160

1 1

4 JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS l l

SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11

. Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: A delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19- 19- 24 >24 Total' Speed N 1 2 0 0 0 0 3 4.43 l NNE 0 1 0 0 0 0 1 4.22 '

.NE O 3 0 0 0 0 3 4.75 :

ENE 2 1 0 0 0 0 .3 4.34 E O 1 0 0 0 0 1 4.40 I ESE O O 2 0 0 0 2 8.87 SE O O O O O 0 0 0.00 SSE O 1 0 0 0 0 1 5.67 5 0 2 5 0 0 0 7 9.10 SSW 0 5 11 0 0 0 16 8.47 SW 1 12 13 0 0 0 26 7.82 WSW 1 20 26 0 0 0 47 7.95 W 1 5 8 0 0 0 14 7.88 hTd 0 6 2 0 0 0 8 7.01 NW 1 2 2 0 0 0 5 6.50 NNW 0 0 0 0 0 0 0 0.00 Total 7 61 69 0 0 0 137 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 13 Hours of Missing Data for All : 288 Hours of No Stability Class : 28 Total hours of observation : 2184 6 __ . _ . _ _- -

. . . - ~ _ - - -. - .- . .- . _ . - .. .

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period . 95 1 01:00 to 95 1 00:00 Stability Class: B delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 1 4 0 1 0 0 6 5.87 NNE O 1 0 0 0 0 1 4.58 NE O 6 1 0 0 0 7 5.61 ENE O 1 2 0 0 0 3 7.33 E O O 3 1 0 0 4 10.13 ESE O 3 2 0 0 0 5 7.85 SE O 5 0 0 0 0 5 6.58 SSE O 3 2 0 0 0 5 7.01 S 0 9 2 0 0 0 11 6.69 SSW 0 6 10 0 0 0 16 8.48 SW 1 6 5 0 0 0 12 6.93 WSW 0 9 5 1 0 0 15 6.96 W 3 7 6 0 0 0 16 7.08 WNW 0 6 4 0 0 0 10 6.75 NW 0 5 3 0 0 0 8 7.30 NNW 1 2 0 0 0 0 3 5.06 Total 6 73 45 3 0 0 127 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 12 Hours of Missing Data for All : 288 Hours of No Stability Class : 28 Total hours of observation : 2184 1

1 l l

_._--- _ _ ..._ _ m_..._ _ _ _ _ _ ____ .. _ ..-. _ _ _ _ _ _ . _ _ _ . _ . . _ _ . _. .

' JOINT WIND FREQUENCY. DISTRIBUTION BY STABILITY CLASS SITE: V.-C. SUMMER Nuclear Station UNIT 1 Report Date : ~ 96-04-11 Data Period : 95 1.01:00 to 95 1 00:00 Stability Class: C delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter-Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean

'O.75- <4 '4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 4 5 0 0 0 0 9 4.51 i NNE '2- 5 0 0 0- 0 7 5.07 l NE 2- 8 2 0 0 0 -12 5.63

'ENE O 3 .5 0 0 0 8' 8.61 E 1 3 9 0 0 0 13 9.02 ESE O 6 5 0 0 0 11 7.32 SE O 3 2 0 0- 0 5 8.69 SSE O 5 1 0 0 0 6 6.63 S 0 2 1 1 0 0 4 9.33

-SSW 0 7 6 0 0 0 13 .7.58 SW 1 11 3 0 0 0 15 6.14 WSW. 2 11 5 1 0 0 19- 6.15 W~ 2 3 5 0 0 0 10 7.08 WNW 0 8 1 0 0 0 9 6.25 NW 1 3 5 0 0 0 9 7.68 NNW 1~ 6 0 0 1 0 -- 8 7.33 Total 16 89 50 2 1 0 -158 Hours of Calm : 0 Hours of. Varying Wind Direction-: 0 Hours of Missing Data : 24 flours of Missing Data for All : 288

^ rours of No Stability Class : 28 Total hours of observation : 2184 1

l l

l JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: D delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 10 28 12 1 1 1 53 7.16 NNE 15 34 14 9 5 0 77 8.20 NE 2 21 26 8 9 0 66 10.90 ENE 3 13 35 11 0 0 62 10.28 E 2 27 19 1 0 0 49 7.73 ESE 0 19 10 0 0 0 29 7.08 SE 3 24 7 1 0 0 35 6.81 SSE 3 13 8 8 0 0 32 8.72 )

S 4 11 20 3' O O 38 8.18 l SSW 4 17 13 1 0 0 35 7.12 l SW 4 22 19 0 0 0 45 6.85 l WSW 10 18 12 0 0 0 40 6.26 W 9 14 6 0 0 0 29 5.68 l WNW 5 12 1 0 0 0 18 5.07 NW 6 10 8 0 0 0 24 6.45 NNW 11 10 8 16 1 0 46 9.47 Total 91 293 218 59 16 1 678 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 123 Hours of Missing Data for All : 288 Hours of No Stability Class : 28 Total hours of observation : 2184

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT'1 Report Date.: 96-04-11 L Data Period : 95 1 01:00 to 95 1.00:00 Stability Class: E delta T/ delta z 61->10 m Delta T With Substitution

. Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed i

Wind Wind Speed (miles / hour) l Direction Mean l' O.75 <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed l N 5 8 4 1 0 0 18- 6.45 NNE 3 8 1 0 0 0 12 5.12-l NE 1 5 6 0 0 0 12 7.64 ENE 3 5- 3 0 0 'O 11 6.63 E 3 6 2 0 0 0 11 5.65

-ESE 4 8 2 0 0 0 14 5.29 SE. 9 26 3 -0 0 0 38 5.46 l

=

SSE- 6 30 10 0 0 0 46 6.20 S 15 28 14 0 0 0 57 6.02 SSW 13 44 11 0 0 0- 68 6.10

. SW 25 51 6 0 0- 0 82 .4.99 WSW 17 37 1 0 0 0 55 4.66 W 13 23 0 0 0 0 36 4.73 WNW 9 4 0 0 0 0 3.58 NW- 8 5 1 0 0 0 14 3.99 NNW 6 8 1 1 0- 0 16 5.45 Total- 140 296 65 2 0 0 503 Hours of Calm- : O r Hours of Varying Wind Direction : 0 l Hours of Ndssing Data : 63 l

Hours of Missing Data for All : 288 ,

Hours'of No Stability Class : 28 Total hours of observation : 2184 l

1 l

i l

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: F delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 1 0 0 0 0 0 1 2.40 NNE O 1 0 0 0 0 1 5.04 NE 1 0 0 0 0 0 1 3.62 ENE 1 0 0 0 0 0 1 2.09 E 1 5 0 0 0 0 6 4.78 ESE 4 3 0 0 0 0 7 4.22 SE 3 10 0 0 0' O 13 5.43 SSE 3 16 0 0 0 0 19 5.53 S 8 15 4 0 0 0 27 . 19 SSW 10 14 0 0 0 0 24 4.37 SW 11 8 0 0 0 0 19 3.93 WSW 5 1 0 0 0 0 6 3.15 W 11 1 0 0 0 0 12 2.95 WNW 7 8 0 0 0 0 15 4.06 NW 3 4 1 0 0 0 8 5.02 NNW 2 3 0 0 0 0 5 3.72 Total 71 89 5 0 0 0 165 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 26 Hours'of Missing Data for All : 288 Hours of No Stability Class : 28 Total hours of observation : 2184 I

l

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: G delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : .10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 0 0 0 0 0 0 0 0.00 NNE O O O O O O O 0.00 NE 1 0 0 0 0 0 1 1.25 ENE O O O O O O O 0.00 E 1 0 0 0 0 0 1 2.78 ESE 2 0 0 0 0 0 2 3.00 SE 3 0 0 0 0 0 3 2.34 SSE 8 5 0 0 0 0 13 4.12 S 12 3 0 0 0 0 15 3.36 SSW 7 5 0 0 0 0 12 3.82 SW 11 7 0 0 0 0 18 3.44 WSW 18 1 0 0 0 0 19 3.34 W 16 5 1 0 0 0 22 3.68 WNW 5 2 0 0 0 0 7 3.39 NW 1 0 0 0 0 0 1 2.47 NNW 0 0 0 0 0 0 0 0.00 Total 85 28 1 0 0 0 114 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 13 Hours of Missing Data for All : 288 Hours of No Stability Class : 28 Total hours of observation : 2184

.. - . . - - . - - . . . - . - - - -..---...._.-.._.x.~-._.. -.. . . _ .

1 JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS l

SITE: V. C. SUMMER Nuclear Station UNIT 1 l

-1 Report Date : 96-04-11 Data Period : 95 1'01:00 to 95 1 00:00 Stability-Class:ALL delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height.: 10 meter

-Hours at Each Wind Direction and Speed ;

Wind Wind Speed (miles / hour)

Direction Mean- ;

0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed. I N. 22' ~47 16 3 1 1 90 6.53 NNE 20 50 15 9 5 0 99 7.50 NE 7 43 35 8 9 0 102 9.18 ,

ENE 9 23 45 11 0 0 88 9.28 E 8 42 33 2 0 0 85 7.47 ESE 10 39 21 0 0 0 70 6.46 SE 18 69 '12 1 0 0 100 6.06 SSE 21 73 23 8 0 0 125 - 6.59

>S 39 70 51- 5 0 0 165 6.55 i SSW 34 98 54 1 0 0 187 6.48

'SW 54 118 46 0 0 0 218 5.67 WSW 53 97 -49 2 0- 0 201 '5.89 W 55 58 26 0 0 0 139. 5.37 WNW 26 46 .8 0. 0 0 80 5.03

'NW 20 29 20 0 0 0 69 5.99 !

NNW -

'21 29 9 17 2 0 78 7.89-Total '417 931 463 67 17 1 1896 1

Hours of Calm : 0 Hours of Varying Wind Direction-: 0 Hours of Missing Data for All : 288 Hours of No Stability Class : 28 Total-hours of observation : 2184 i

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_ 't JOINT WIND FREQUENCY DISTRIBUTION BY' STABILITY CLASS SITE: V. C.' SUMMER Nuclear Station UNIT 1 Report Date : '96-04-11 Data Period : 95 1 01:00 to 95 1 00:00

! Stability: Class: A delta T/ delta z 61->10 m Delta T With Substitution l Wind' Sensor Height : 10 meter l Hours at Each Wind' Direction and Speed

! Wind . Wind Speed (miles / hour) l Direction Mean l -0.75- <4 4- <8 . Eb- <13 13- <19 19- 24 >24 Total' Speed N 2 0 0 0 0 0 2 2.65 l- NNE 'O. 0- 0 3 0 0 '3 15.46

'NE 1 1 0 0 0 0 2 3.86 I

'ENE. 0 0 0 0 0 0 0 0.00 '

E O 1- 1 2 0 0 4' 11.77 ESE 0 1 .0 1 0- 0 2 10.72 i SE 0 0 0 0 0 0' O 0.00 SSE O -0' 0 0 0 0 0 J0.00 l S 0 2 1 0 0 0 3. 7.69 l SSW- 0 1 0 0 0 0 1 5.03 SW- 0 4 1 0 0 0 5 6.38 WSW- 0 10 6 0 0 0 16- 8.14 W 0 3 0' 0 0 0 3 6.51 WNW 1 2 0 0 0 0 3 4.95 NW 0 0 0 0 0 0 0 0.00 NNW- 0 0 ,0 0 0 0 0 0.00

Total 4 25 9 6 0 0 44 i ..

Hours of Calm : 0

-Hoursoof Varying Wind Direction : 0 Hours of Missing Data : 0

' Hours of Nussing Data for All : 0

-Hours of No Stability Class : 0 ;

Total hours of observation : 2208 l

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JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: B delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N O 2 0 0 0 0 2 5.05 NNE O 2 0 1 0 0 3 7.93 NE 1 5 0 0 1 0 7 6.99 ENE O O O O O O 0 0.00 E O 1 2 1 0 0 4 10.43 ESE O 2 0 0 0 0 2 7.81 SE O O 6 0 0 0 6 9.55 SSE O 1 3 0 0 0 4 9.79 S 0 1 3 0 0 0 4 8.48 SSW 0 3 1 0 0 0 4 5.82 SW 1 11 2 0 0 0 14 5.86 WSW 1 9 0 0 0 0 10 5.23 W 1 4 0 0 0 0 5 4.87 WNW 0 3 0 0 0 0 3 5.47 NW 0 0 0 0 0 0 0 0.00 NNW 2 1 0 0 0 0 3 3.95 Total 6 45 17 2 1 0 71 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 2208 i

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I

l JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 i

Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: C delta T/ delta z 61->10 m Delta T With Substitution l Wind Sensor Height : 10 mete r Hours at Each Wind Direction and Speed I

l l

Wind Wind Speed (miles / hour) j Direction Mean !

0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed i l

N 4 3 0 0 0 " 'O 7 4.00 NNE 5 8 1 9 0 0 23 9.30 NE 3 10 4 3 0 0 20 7.66 ENE O 7 5 0 0 0 12 7.86 E O 3 6 0 0 0 9 8.36 ESE 1 2 4 0 0 0 7 7.77 SE O 2 5 0 0 0 7 8.17 SSE O 3 0 0 0 0 3 6.17 S 0 4 7 1 0 0 12 8.64 SSW 0 4 2 0 0 0 6 7.52 SW 2 11 2 0 0 0 15 5.99 WSW 0 11 3 0 0 0 14 6.29 W 3 3 0 0 0 0 6 3.86 WNW 3 8 0 0 0 0 11 4.51 NW 1 3 0 0 0 0 4 3.98 NNW 2 5 1 0 0 0 8 5.33 Total 24 87 40 13 0 0 164 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0-Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 2208 i

(

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 ,

Stability Class: D delta T/ delta z 61->10 m D?lta T With Substitution j Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 30 46 18 6 0 0 100 6.20 NNE 26 75 76 40 0 0 217 8.93 NE 6 60 129 49 0 0 244 10.12 ENE 5 50 67 18 0 0 140 9.14 E 3 64 44 13 0 0 124 8.37 ESE 2 27 12 2 0 0 43 7.18 SE 3 18 8 0 0 0 29 6.83 SSE 1 25 8 0 0 0 34 6.51 S 5 29 16 0 0 0 50 6.84 SSW 7 16 6 0 0 0 29 6.19 SW 12 11 3 0 0 0 26 4.69 WSW 15 12 0 0 0 0 27 3.83 W 13 15 0 0 0 0 28 4.16 WNW 10 4 0 0 0 0 14 3.64 NW 6 7 1 0 0 0 14 5.12 NNW' 12 19 4 0 0 0 35 5.13 Total 156 478 392 128 0 0 1154 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 2208

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: E delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed l

Wind Wind Speed (miles / hour) l Direction Mean >

O.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed l N 2 7 0 0 0 0 9 4.56 '

i NNE 6 6 3 0 0 0 15 5.33 l NE 5 6 9 3 0 0 23 8.38 ENE 3 3 4 1 0 0 11 7.14 E 9 23 6 0 0 0 38 5.83 i ESE 12 10 0 0 0 0 22 4.18 SE 9 48 1 0 0 0 58 5.23 SSE 20 52 6 0 0 0 78 4.95 S 24 35 3 0 0 0 62 4.79 SSW 27 37 2 0 0 0 66 4.58 SW 31 19 0 0 0 0 50 3.77 WSW 33 4 2 0 0 0 39 3.28 W 25 5 0 0 0 0 30 3.03 WNW 17 3 0 0 0 0 20 3.15 NW 8 5 0 0 0 0 13 4.09 l NNW 6 3 3 0 0 0 12 4.98 Total 237 266 39 4 0 0 546 Hours of Calm : 0 Hours of Varying Wind Direction : 0

. Hours of Missing Data : 0 l Hours of Missing Data for All : 0 l Hours of No Stability Class : 0 l Total hours of observation : 2208 i

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i JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: F delta T/ delta z 61->10 m Delta T With' Substitution Wind Sensor Height : 10 meter I Hours at Each Wind Direction and Speed !

I Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 2 0 0 0 0 0 2 2.84 NNE O O O 0 0 0 0 0.00 NE 1 0 0 0 0 0 1 3.21 ENE O O O O O O O 0.00 E 2 0 0 0 0 0 2 2.82 ESE 2 1 0 0 0 0 3 3.38 SE 0 7 0 0 0 0 7 5.76 SSE 9 22 0 0 0 0 31 4.56 S 14 10 2 0 0 0 26 4.27 SSW 13 2 0 0 0 0 15 3.04 SW 17 4 0 0 0 0 21 3.26 WSW 27 3 0 0 0 0 30 2.95 W 18 0 0 0 0 0 18 2.72 WNW 12 1 0 0 0 0 13 2.86 NW 3 0 0 0 0 0 3 2.04 NNW 1 2 0 0 0 0 3 5.15 Total 121 52 2 0 0 0 175 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 2208

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: G delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N O O O 0 0 0 0 0.00 NNE O O O O O O O 0.00 NE O 0 0 0 0 0 0 0.00 ENE O O O O O O O 0.00 E O O 0 0 0 0 0 0.00 ESE O O O O O 0 0 0.00 SE O O O O 0 0 0 0.00 SSE O O 0 0 0 0 0 0.00 S 1 2 0 0 0 0 3 3.96 SSW 4 0 0 0 0 0 4 3.20 SW 8 0 0 0 0 0 8 2.83 WSW 16 2 0 0 0 0 18 3.19 W 18 0 0 0 0 0 18 3.17 WNW 1 0 0 0 0 0 1 2.54 NW 2 0 0 0 0 0 2 2.45 NNW 0 0 0 0 0 0 0 0.00 Total 50 4 0 0 0 0 54 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 2208

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 '

Data Period : 95 1 01:00 to 95 1 00:00 Stability Class:ALL delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 40 58 18 6 0 0 122 5.82 NNE 37 91 80 53 0 0 261 8.82 ,

NE 17 82 142 55 1 0 297 9.68 {

ENE 8 60 76 19 0 0 163 8.91 '

E 14 92 59 16 0 0 181 7.90 ESE 17 43 16 3 0 0 79 6.36 SE 12 75 20 0 0 0 107 6.13 l SSE 30 103 17 0 0 0 150 5.38 i S 44 83 32 1 0 0 160 5.77 SSW 51 63 11 0 0 0 125 4.91 SW 71 60 8 0 0 0 139 4.35 WSW 92 51 11 0 0 0 154 4.21 W 78 30 0 0 0 0 108 3.52 WNW 44 21 0 0 0 0 65 3.61 NW 20 15 1 0 0 0 36 4.22 NNW 23 30 8 0 0 0 61 5.07 Total 598 957 499 153 1 0 2208 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 2208

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 00:00 to 95-12-31 23:00 Stability Class: A delta T/ delta z 61->10 m Delta T With Substitution i Wind Sensor Height : 10 meter l Hours at Each Wind Direction and Speed l

l

, Wind Wind Speed (miles / hour) l Direction Mean j 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 0 0- 0 0 0 0 0 0.00 l NNE 0 0 0 0 0 0 0 0.00 i NE O 1 1 0 0 0 2 8.03 ENE O G 0 0 0 0 0 0.00 E O O 0 0 0 0 0 0.00 ESE O O O O O 0 0 0.00 l SE O O 1 0 0 0 1 11.43 l SSE O O O O 0 0 0 0.00 l S 0 0 0 0 0 0 0 0.00 l

! SSW 0 0 2 0 0 0 2 10.90 l

( SW 0 0 0 0 0 0 0 0.00 l

WSW 0 2 5 0 0 0 7 9.06 W 0 2 3 0 0 0 5 7.47 WNW 0 2 1 0 0 0 3 8.41 NW 0 0 4 3 0 0 7 12.64 NNW 0. 0 0 2 0 0 2 13.65 Total 0 7 17 5 0 0 29 Hours of Calm : 0 Hours of Varying Wind Direction : 0

Hours of Missing Data: 0 Hours of Missing Data for All : 118 l Hours of No Stability Class : 166 Total hours of observation : 2208 I

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JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 00:00 to 95-12-31 23:00 Stability Class: B. delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N O 1 0 0 0 0 1 4.64 NNE 0 0 0 0 2 0 2 20.86 NE O O O 1 0 0 1 14.93 ENE O 0 0 0 0 0 0 0.00 E O O O 0 0 0 0 0.00 ESE O O 1 1 0 0 2 12.85 SE O 0 1 0 0 0 1 8.42 SSE 0 0 2 0 0 0 2 9.77 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 1 0 0 1 14.08 SW 0 5 5 0 0 0 10 8.02 WSW 0 4 5 0 0 0 9 7.18 W 0 4 1 0 0 0 5 7.02 WNW 0 5 1 0 0 0 6 6.73 NW 0 4 2 0 0 0 6 7.60 NNW 1 2 3 0 0 0 6 0.08 Total 1 25 21 3 2 0 52 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 118 Hours of No Stability Class : 166 Total hours of observation : 2208

1 JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 00:00 to 95-12-31 23:00 Stability Class: C delta T/ delta z 61->10 m Delta i With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed

. Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 1 1 1 8 0 0 11 13.84 NNE 1 2 0 3 1 0 7 12.75 NE O 5 2 0 0 0 7 7.69 ENE 0 6 4 0 0 0 10 8.19 E O O 2 0 0 0 2 9.06 ESE 0 0 0 0 0 0 0 0.00 SE O 1 1 0 0 0 2 8.79 SSE O 1 0 0 0 0 1 4.71 S 0 1 0 0 0 0' 1 6.04 SSW 0 1 4 0 0 0 5 10.09 SW 0 8 1 0 0 0 9 6.85 WSW 0 4 3 2 0 0 9 8.94 W 0 5 1 0 0 0' 6 6.37 WNW 0 10 2 0 0 0 12 6.22 NW 0 4 0 0 0 0 4 5.76 NNW 0 7 5 4 'O O 16 10.51 Total 2 56 26 17 1 0 102 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 118 Hours of No Stability Class : 166 Total hours of observation : 2208 l

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l JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS 1

l SITE: V. C. SUMMER Nuclear Station UNIT 1 l Report Date : 96-04-11 l Data Period : 95 1 00:00 to 95-12-32 23:00 Stability Class: D delta T/ delta z 61->10 m Delta T With Substitution l Wind Sensor Height : 10 meter

Hours at Each Wind Direction and Speed

{

l Wind Wind Speed (miles / hour)

l. Direction Mean l

0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 14 18 14 7 0 0 53 7.46 ,

NNE 11 35 71 38 0 0 155 9.95 l NE 5 44 76 27 0 0 152 9.61 ENE 1 32 63 11 0 0 107 9.34 l E 1 22 21 0 0 0 44 7.94 l ESE 4 17 6 0 0 0 27 6.49 SE 1 15 1 2 0 0 19 7.01 SSE 8 11 2 1 1 0 23 6.25 S 6 18 2 2 4 1 33 8.82 SSW 0 9 17 4 1 0 31 10.14 SW 14 14 11 1 0 0 40 6.14 WSW 10 26 4 1 0 0 41 5.60 W 10 20 6 2 0 0 38 6.09 WNW 5 22 1 1 1 0 30 5.60 NW 8 13 7 0 0 0 28 5.78 NNW 8 21 19 4 1 0 53 8.17 j Total 106 337 321 101 8 1 874 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 118 Hours of No Stability Class : 166 Total hours of observation : 2208 l

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JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 00:00 to 95-12-31 23:00 Stability Class: E delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 11 6 0 0 0 0 17 3.95 NNE 1 4 6 1 0 0 12 8.41 NE 2 3 13 0 0 0 23 8.77 ENE 2 8 2 0 0 0 12 7.06 E 4 22 6 0 0 0 32 6.01 ;

ESE 4 13 0 0 0 0 17 5.17 SE 7 19 1 2 0 0 29 6.12 SSE 13 17 9 1 0 0 40 5.61 S 8 24 7 0 0 0 39 5.93 SSW 14 38 8 1 0 0 61 6.03 SW 19 39 1 1 0 0 60 5.02 WSN 18 31 4 0 0 0 53 4.90 W 13 28 0 0 0 0 41 5.04 WNW 16 21 0 0 0 0 37 4.70 NW 11 17 0 0 0 0 28 4.66 NNW 3 5 5 1 0 0 14 6.81 Total 146 300 62 7 0 0 515 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Mlssing Data for All : 118 Hours of No Stability Class : 166 Total hours of observation : 2208

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS

~

SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 00:00 to 95-12-31 23:00 Stability Class: F -delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 3 2 1 0 0 0 6 4.29 NNE 4 1 0 0 0 0 5 3.80 NE 1 0 0 0 0 0 1 3.64 ENE 2 0 0 0 0 0 2 2.23 E 3 2 0 0 0 0 5 4.07 .

ESE 1 1 0 0 0 0 2 3.66 SE 4 11 0 0 0 0 15 5.21 SSE 6 21 1 0 0 0 28 4.92 S 5 13. 3 0 0 0 21 5.25 SSN 4 24 0 0 0 0 28 4.96 SW 17 15 0 0 0 0 32 3.88 ;

WSW 26 13 0 0 0 0 39 3.86 W 19 21- 1 0 0 0 41 4.27 WNW 9 11 0 0 0 0 20 4.08 NW 6 5 0 0 0 0 11 3.85 NNW 2 2 0 0 0 0 4 3.66 Total 112 142 6 0 0 0 260 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 118 Hours of No Stability Class : 166 Total hours of observation : 2208 I

I 1

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' JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS o --

SITE: V. C. SUMMER Nuclear Station UNIT 1 j: Report Date': 96-04-11 l' Data Period : '95 1 00:00 to 95-12-31 23:00 l Stability Class: G delta T/ delta z 61->10 m Delta T With Substitution

-Wind Sensor Height: .10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction . .

Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed I

N ~2 0 0 0 0 0 2 2.99

.NNE O O 0 0 0 0 0 0.00 NE O O O O O O O 0.00 l ENE O 0- 0 0 0 0' O 0.00 i L E 1 0 0 0 0 0 1 2.89 !

iJ ESE 1 0 0 0 0 0 1 2.68 SE ~4 5- 0 0 0 0 9 4.45 SSE 3 14 0 0 0 17 4.88 I S' 10 15 0 0 0 0 25 4 25 SSW. 9- 9 0 0 0 0 18 -3.68 ;

.!nf 25- 5 0 0 -0 0 30 3.17 l WSW 34 14 0 0 0 0 48 3.55 L W 31 6 0 0 0 0 37 3.37

! WNW 14 5 0 0 0 0- 19 3.46 l NW 1 1 0 0 0 n 2 3.94-NNW 1 0, 0 0 0 0 1 1.89 Total 136 74 0 0 0 0 210 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 l Hours of Missing Data for All : 118 j Hours of No Stability Class- : 166-Total hours of observation : 2208 l

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JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V.'C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 00:00 to 95-12-31 23:00 Stability Class:ALL delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 33 28 16 15 0 0 92 7.15 NNE. 18 43 77 42 3 0 183 9.85 NE 8 60 92 28 0 0 188 9.36 ENE 7 50 69 11 0 0 137 8.75 E 10 46 29 0 0 0 85 6.89 ESE 11 31 7 1 0 0 50 6.03 SE 16 52 5 4 0 0 77 6.11 SSE 32 65 14 2 1 0 114 5.45 S 30 74 12 2 4 1 123 6.21 SSW 30 82 31 6 1 0 150 6.58 SW 78 91 18 2 0 0 189 4.98 WSW 94 95 21 3 0 0 213 4.89 W 76 87 12 2 0 0 177 4.87 WNW 45 76 5 1 1 0 128 4.94 NW 26 44 13 3 0 0 86 5.81 NNW 17 37 32 11 1 0 98 8.11 Total 531 961 453 133 11 1 2090 Hours of Calm : 0 Hours of sarying Wind Direction : 0 Hours of Missing Data for All : 118 Hours of No Stability Class : 166 Total hours of observation : 2208

TABLE 8 1

l JOINT FREQUENCY DISTRIBUTION BY QUARTER 1995 )

( BATCH RELEASES )

1 1

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1

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C.~ SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95- 1 1 01:00 to 95 1 00:00 Stability Casss: A del:a T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 0 0 0 0 0 0 0 0.00 NNE O O O 0 0 0 0 0.00 NE 0 0 0 0 0 0 0 0.00 ENE O O O O O 0 0 0.00 E O 0 0 0 0 0 0 0.00 ESE O O O O 0 0 0 0.00 SE 0 0 0 0 0 0 0 0.00 SSE O O O O O 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 l NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 Total 0 0 0 0 0 0 0 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class -

0 Total hours of observation : 10 l

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: B delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed

--- -- = --

N 0 0 0 0 0 0 0 0.00 NNE O O O 0 0 0 0 0.00 NE O O O O O 0 0 0.00 ENE 0 0 0 0 0 0 0 0.00 E O 0 0 0 0 0 0 0.00 ESE O 0 0 0 0 0 0 0.00 SE O O O O O O O 0.00 SSE O 1 0 0 0 0 1 4.38 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 Total 0 1 0 0 0 0 1 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 10

l JOINT WIND. FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: C delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed M 0 0 0 1 0 0 1 14.57 NNE O O 0 0 0 0 0 0.00 NE O 0 0 0 0 0 0 0.00 ENE 0 0 0 0 0 0 0 0.00

'E O O O O O O O 0.00 ESE O O O O O O O 0.00 SE O O O O O O 0 0.00 SSE 0 0 0 0 0 0 0 0.00 S 0 0 0 0 -0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 l NW 0 0 0 0 0 0 0 0.00 I NNW _0 0 0 0 0 0 0 0.00 l

Total 0 0 0 1 0 0 1 l

Hours of Calm : 0 Hours of Varying Wind Direction : 0 ]

Hours of Missing Data : 0 Hours of Missing Data for All : O l

Hours of No Stability Class : 0 !

Total hours of observation : 10 I

l l

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: D delta T/ delta : 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N O O O 3 0 0 3 16.93 NNE 0 1 0 0 0 0 1 5.92 NE 0 0 0 0 0 0 0 0.00 ENE O O O O O 0 0 0.00 E O O O O O 0 0 0.00 ESE 0 0 0 0 0 0 0 0.00 SE O 0 0 0 0 0 0 0.00 SSE O 0 0 0 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 1 0 0 0 0 1 4.13 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 Total 0 2 0 3 0 0 5 Hours of Calm : 0 Hours of Varying Wind Direction : 0 ,

Hours of Missing Data : 0 j Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 10 l

l JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: E delta T/ delta z 61->10 m Delta T With Substitution i Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

f Hours at Each Wind Direction and Speed j Wind Wind Speed (miles / hour) -

Direction Mean O.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed l N O O O O O O O 0.00 NNE O O 0 0 0 0 0 0.00

,, NE O O O 0 0 0 0 0.00 l '

ENE 0 0 0 0 0 0 0 0.00 E O O O O O O O 0.00 ESE O 0 0 0 0 0 0 0.00 SE O 0 0 0 0 0 0 0.00 SSE 0 0 0 0 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 NW 0 2 0 0 0 0 2 6.u4 NNW 0 0 1 0 0 0 1 9.27 Total 0 2 1 0 0 0 3 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 10 l

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I JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: F delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean

'O.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 0 0 0 0 0 0 0 0.00 NNE O O O O O O O 0.00 NE O O O O 0 0 0 0.00 ENE 0 0 0 0 0 0 0 0.00 E O O 0 0 0 0 0 0.00 ESE O O O O O 0 0 0.00 SE O O O O O O O 0.00 SSE 0 0 0 0 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 Total 0 0 0 0 0 0 0 Hours of Calm : 0 Hours of Varying Wind Direction : 0 l Hours of Missing Data : 0 Hours of Missing Data for All : 0 l

1 Hours of No Stability Class : 0 Total hours of observation : 10 :

l l

s JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: G delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times.Only +++

Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <A3 13- <19 19- 24 >24 Total' Speed N O 0 0 0 0 0 0 0.00 NNE O O O 0 0 0 0 0.00 NE O O O O 0 0 0 0.00 ENE O 0 0 0 0 0 0 0.00 E 0 0 0 0 0 0 0 0.00 ESE O O O 0 0 0 0 0.00 SE O O O 0 0 0 0 0.00 SSE O O O O 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 Total 0 0 0 0 0 0 0 i l

Hours of Calm : 0 l Hours of varying Wind Direction : 0 !

Hours of Missing Data. : 0 '

Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 10 I I

l l

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II JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1

. Report Date : 96-04-11

Data Period: 95 1 01:00 to 95 1 00:00 Stability Class:A7,L delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 0 0 0 4 0 0 4 16.34 NNE O 1 0 0 0 0 1 5.92 NE O O O O 0 0 0 0.00 ENE O O O O O O O 0.00 E 0 0 0 0 0 0 0 0.00 ESE O 0 0 0 0 0 0 0.00 SE O O O O O 0 0 0.00 SSE O 1 0 0 0 0 1 4.38 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 1 0 0 0 0 1 4.13 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 NW 0 2 0 0 0 0 2 6.84 NNW 0 0 1 0 0 0 1 9.27 Total 0 5 1 4 0 0 10 Hours of Calm : 0 Hours of. Varying Wind Direction : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 10

)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS

! SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: A delta T/ delta z_ 61->10 m Delta T With Substitutio:s Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- 24 Total' Speed N 0 0 0 0 0 0 0 0.00 NNE 0 0 0 0 0 0 0 0.00 NE O O O 0 0 0 0 0.00 ENE O O O O O O 0 0.00 E O O O O 0 0 0 0.00 ESE O O O O O 0 0 0.00 SE 0 0 0 0 0 0 0 0.00 SSE 0 0 0 0 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SWL 0 0 0 0 0 0 0 0.00 WSW O' C 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 NW' 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 Total 0 0 0 0 0 0 0 Hours of Calm : 0 Hours of Varying Wind Direction . O Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 20 L

1 I

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS' SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: B delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean ,

0.75- <4 4- <8 8- <l3 13- <19 19- 24 >24 Total' Speed N 0 0 0 0 0 0 0 0.00 NNE O O O O O 0 0 0.00 NE O 0 0 0 0 0 0 0.00 ENE O O O O O O O 0.00 E O O O 0 0 0 0 0.00 ESE O O O O 0 0 0 0.00 SE 0 0 0 0 0 0 0 0.00 SSE O O O O O O 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 l Total 0 0 0 0 0 0 0 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 20 i

l l

i JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS i

SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: C delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++ j Hours at Each Wind Direction and Speed !

1 Wind Wind Speed (miles / hour)

Direction Mean f l 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed ,

l _

N 0 O 0 0 0 0 0 0.00 NNE O O 0 0 0 0 0 0.00 NE O O O O O 0 0 0.00 ENE O O O O O 0 0 0.00 E 0 0 0 0 0 0 0 0.00 ESE 0 0 0 0 0 0 0 0.00 SE 0 0 0 0 0 0 0 0.00 SSE 0 0 0 0 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 1 0 0 0 0 1 4.60 W 0 1 0 0 0 0 1 4.96 WNW 0 0 0 0 0 0 0 0.00 ;

NW 0 0 0 0 0 0 0 0.00 !

NNW 0 0 0 0 0 0 0 0.00 Total 0 2 0 0 0 0 2 1 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All )

0 l Hours of No Stability Class : 0 ;

Total tcurs of observation : 20 l

{ I l

l 1

. _ __. . . _ , . _ . .-. _. _._ _. _ . _ __. - .._m _ _

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CT~ 9 4

SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: D delta T/ delta z 61->10 m Delta T With Subst.'tution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N O O O O O 0 0 0.00 NNE O 0 0 0 0 0 0 0.00 NE 0 0 0 0 0 0 0 0.00 ENE O 0 0 0 0 0 0 0.00 E 1 3 0 0 0 0 4 4.92 ESE O 2 0 0 0 0 2 5.97 SE 0 2 0 0 0 0 2 6.02 SSE 0 0 0 0 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 2 0 0 0 2 9.65 WNW 0 1 0 0 0 0 1 6.34 NW 0 0 2 0 0 0 2 8.20 NNW 0 0 0 0 0 0 0 0.00 Total 1 8 4 0 0 0 13 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 20

l l

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 i Data Period : 95 1 01:00 to 95 1 00:00 l Stability Class: E- delta T/ delta z 61->10 m Delta T With Substitution l Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

i Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean l 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 0 O O O 0 0 0 0.00 NNE O 0 0 0 0 0 0 0.00 NE O 0 0 0 0 0 0 0.00 ENE O 0 0 0 0 0 0 0.00 E 0 0 0 0 0 0 0 0.00 ESE O 1 0 0 0 0 1 5.44 SE O 0 1 0 0 0 1 10.09 SSE O 0 0 0 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 1 0 0 0 0 1 6.19 W 0 1 0 0 0 0 1 5.62 WNW 0 0 0 0 0 0 0 0.00 NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 Total 0 3 1 0 0 0 4 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Gours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 20 I

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1

JOINT WIND FREQUENCY DISTRIBUTION'BY STABILITY CLASS SITE: V. C ~ SUMMER Nuclear Station UNIT 1 Report Date,: 96-04-11 Data Period : 95 1 01:00 _

to 95 .7- 1 00:00 x

Stability-Class: F delta T/ delta z 61->10 m Delta T.With Substitution Wind 1 Sensor Height : '10 meter +++~ Batch Release Times.Only +++

Hours at Each Wind Direction and Speed ind Wind Speed (miles / hour)

Direction' Mean 0.75 D<4 4- <8 8- <13 13- <19 19 >24 Total' Speed N O O O 0 0 0 0 0.00 NNE O O 0 0 0 0 0 0.00 NE O O O 0 0 0 0 0.00 ENE 0 0 0 0 0 0 0 0.00 E O O O O O O O 0.00 ESE 1 0 0 0 0 0 1 3.89-SE O 0 0 0 0 0 0 0.00 SSE O O O O 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 -0 0 0 0.00 SW- 0 0- 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW- 0 0 0 0 0 0 0 0.00 NW 0 0- 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00-Total 1 0 0 0 0 0 1 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0

' Hours of Missing Data for All : 0 Hours of No Stability Class : 0

. Total hours of observation. ; 20 I

i

i i

l JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 i l

Report Date : 96-04-11 Data Period.': 95 1 01:00 to 95 1 00:00 Stability Class: G delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed .

J Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8 .<13 13- <19 19- 24 >24 Total' Speed l

N O 0 0 0 0 0 0 0.00 I NNE 0 0 0 0 0 0 0 0.00 '

NE O O 0 0 0 0 0 0.00 ENE 0 0 0 0 0 0 0 0.00 E O 0 0 0 0 0 0 0.00 ESE O O 0 0 0 0 0 0.00 i SE O O 0 0 0 0 0 0.00 )

SSE O O 0 0 0 0 0 0.00 i S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 hT4 0 0 0 0 0 0 0 0.00 NW 0 0 0 0 0 0 0 0.00 I NNW 0 0 0' 0 0 0 0 0.00 Total 0 0 0 0 0 0 0 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 ,

Bours of Missing Data for All : 0

{

Hours of No Stability Class : 0 i Total hours of observation : 20 l

l

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 ;

Stability Class:ALL delta T/ delta z 61->10 m Delta T With Sub'stitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N O 0 0 0 0 0 0 0.00 NNE 0 0 0 0 0 0 J 0.00 NE 0 0 0 0 0 0 r 0 0.00 ENE 0 0 0 0 0 0 0 0.00 E 1 3 0 0 0 0 4 4.92 ESE 1 3 0 0 0 0 4 5.32 SE O 2 1 0 0 0 3 7.38 SSE O 0 0 0 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 2 0 0 0 0 2 5.40 W 0 2 2 0 0 0 4 7.47 WNW 0 1 0 0 0 0 1 6.34 NW 0 0 2 0 0 0 2 8.20 NNW 0 0 0 0 0 0 0 0.00 Total 2 13 5 0 0 0 20 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 20 I

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l I

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JOINT WIND FREQUY.NCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 l -Report Date : 96-04-11

~ Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: A' delta'T/ delta z 61->10 m Delta T With Substitution

'. Wind Sensor Height : 10 meter +++ Batch Release Times-Only +++-

Hours at Each-Wind Direction and Speed Wind Wind Speed.(miles / hour)

l. Direction Mean ,

0.75- <4 4- <8 8- <13 13-.<19 19- 24 >24' _ Total' Speed s N, 0 0 0 0 0 0 0 0.00

l. -NNE- 0 0 0 1 0 0 1 13.88 NE- 0 0 0 0 0 0 0 0.00 l ENE- 0 0 0 0 0 0 0 0.00 E O O O O O O O 0.00

. ESE O O 0 0 0 0 0 0.00 SE O O O O O O 'O .0.00 SSE O 0 0 0 0 0 0 0.00 !

i. S 0 0 0 0 0 0 0 0.00 i SSW 0 0 0. 0 -0 0 0 0.00 !

SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 'O O O 0.00

._ WNW d 0 0 0 0 0 0 0.00 i NW 0 0 0 0 0 0 0 0.00 l NNW 0 0 0 0 0 0 0 0.00 Total 0- 0 0 1 0 0 1 Hours of Calm: 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0

(

Uours of Missing' Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : -4 1 l

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j-i

. - . . - . . - ~ . . .

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUI 44ER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: B delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 0 0 0 0 0 0 0 0.00 NNE O O 0 1 0 0 1 14.93 NE 0 0 0 0 0 0 0 0.00 ENE O O O O O 0 0 0.00 E 0 0 0 0 0 0 0 0.00 ESE 0 0 0 0 0 0 0 0.00 SE O 0 0 0 0 0 0 0.00 SSE O O O 0 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 Total 0 0 0 1 0 0 1 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 4

l JOINT WIND. FREQUENCY DISTRIBUTION BY STABILITY CLASS l

SITE: V. C. SUMMER Nuclear Station. UNIT 1 Report Date : 96-04-11 Data Period : 95 1,01:00 to 95 1 00:00

Stability Class: C delta T/ delta z. 61->10 m Delta T With Substitution-

' Wind Sensor Height : 10. meter +++ Batch Release' Times Only +++

l Hours at Eacl? Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4 .<8 8- <13 13 '<19 19- 24 >24 Total' Speed

! N- 0 0 0- 0 0 0 0 0.00 NNE O O O 1- 0 0 1 16.21 NE' O 0 0 0 0 0 0 0.00 ENE O O 0. 0 0 0 0 0.00

_E O O O O O O O 0.00 i 'ESE O' 0 0 0 0 0 0 .0.00 1 l~ SE O O O O O 0 0 0.00 L l SSE O O O O O O O 0.00 1 l S 0 0 0 0 0 0 0 0.00 !

SSW 0 0 0 0 0 0 ~0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 '

! NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 Total 0 0 0 1 0 0 1

! Hours of' Calm : 0 l ;Eours of. Varying Wind Direction : 0

Hours of Missing Data: 0 l Hours of Missing Data for All : 0 Hours'of No Stability Class : 0 l Total hours of observation : 4 1

m l

a 1

V i I

1. - . . . -. . .-. . .- --. - - -

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1

, Report Date-: 96-04-11 Data Period : 95 1 01:00 to 95-10 '1 00:00-Stability. Class: D delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours'at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean-0.75- <4 4- <8 8- <13 13- <19 19- 24 >24- Total' Speed N O O O 0 0 0- 0 0.00 NNE O 0 0 1 0 0 1 15.17 NE O- 0 0 0 0 0 0 0.00 ENE O O O O O O O 0.00 E 'O 0 0 0 0 0 0 0.00 ESE. 0 0 0 0 0 0 0 0.00

.SE O O O O 0 0 0 0.00 SSE 0 0 0 0 0 0 0 0.00 s s 0 0 0 0 0 0 0 0.00 SSW 0 0 0 -0 0 0 0.00' 0

SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W- 0 0 0 -0 0 0 0 0.00-WNW 'O O 0 0 0 0 0 0.00 NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 ,

Total 0 0 0 1 0 0 1 Hours of Calm' : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0

. Total hours of observation' : 4

l 0 i l

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS I

SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 l Stability Class: E delta T/ delta z 61->10 m Delta T With Substitution J Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed l

l Wind Wind Speed (miles / hour)

Direction Mean '

O.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed l

N 0 0 0 0 0 0 0 0.00

, NNE O O 0 0 0 0 0 0.00

! NE 0 0 0 0 0 0 0- 0.00 l ENE 0 0 0 0 0 0 0 0.00 l E O O O 0 .0 0 0 0.00 ESE O O O O O O 0 0.00 :

SE O O O O O 0 0 0.00 '

SSE 0 0 0 0 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 I SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 l Total 0 0 0 0 0 0 0 Hours of Calm : 0 Hours of Varying Wir d Direction : 0 Hours of Missing Data : 0 l Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 4 1

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l JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 01:00 to 95 1 00:00 Stability Class: F 'alta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++ 1 Hours at Each Wind Direction and Speed l

Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 0 0 0 0 0 0 0 0.00 NNE O O O 0 0 0 0 0.00 NE O O 0 0 0 0 0 0.00 ENE O O O 0 0 0 0 0.00 E 0 0 0 0 0 0 0 0.00 ESE O O O 0 0 0 0 0.00 SE O O 0 0 0 0 0 0.00 SSE O 0 0 0 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 Total 0 0 0 0 0 0 0 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 4

j JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 l Data Period : 95 1 01:00 to 95 1 00:00 Stability Class:.G delta T/ delta z 61->10 m Delta T With Substitution Wind. Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed l

l Wind Wind Speed (miles / hour) l Direction Mean

! 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed l

l N 0 0 0 0 0 0 0 0.00- !

NNE O 0 0 0 0 0 0 0.00 l NE 0 0 0 0 0 .0 0 0.00 I ENE O O O O O O O 0.00 !

E O O O 0 0 0 0 0.00 ESE O O O 0 0 0 0 0.00 ,

SE O O O 0 0 0 0 0.00 I SSE O O O O O O O 0.00 S 0 0 0 0 0 0 0 0.00 l SSW 0 0 0 0 0 0 0 0.00 l SW 0 0 0 0 0 0 0 0.00 i WSW 0 0 0 0 0 0 0 0.00 l W 0 0 0 0 0 0 0 0.00 I MM 0 0 0 0 0 0 0 0.00 NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 Total 0 0 0 0 0 0 0 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 4 l

l 1

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. , . .~ , ..a_ . - . . -. .. . . . . . - , - ~ . , . - - . . . . . - . . . . ~ . . . . . - . . . . - . - - . .

14.

,l JOINT WIND FREQUENCY.-DISTRIBUTION'BY STABILITY CLASS SITE:' V. C. SUMMER Niiclear Stat! ion UNIT 1 ;

-LReport Dste : 96-04-11. . , l

' Data Period : 95 1 01:00 to '95 1 00:00 Stability Class:ALL ' delta T/ delta z 61->10 m Delta T With Substitution

' Wind Sensor Height : 10 meter +++ Batch Release Times Only(+++ j i Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction . .

Mean 0.'75- <4 4- <8 8- <13 13- <19 19 >24 Total' Speed. >

N O 0 0 0 0 0 0 0.00-NNE O O O '4 0 0 4 15.05 >

NE' 0- 0 0 0 0 0 0 0.00 ,

ENE O O O O O O .0 0.00 .;

.E 0 0 0 0 0 0 0 0.00 ESE O 0 0 0 0 0 0 0.00 SE O O O O O O O 0.00 !

SSE O O O O O 0- 0 0.00 .,

S 0 0 0 0 0 0 0 0.00

SSW 0 .0 0 0 0 0 0 0.00 SW ' 0 0' 0 0 0 0 0 0.00 WSW' O- 0 0 'O 0 0 0 0.00 i

-W 0 0 0 0 0 0 0 0.00 i WNW 0 0 0 0 0 0 0 0.00 !

-NW 0 0 0 0 0- 0 0- 0.00 NNW -0 0- 0 0 0 0 0 0.00 ,

Total- 0 0 0 4 0- 0 4 Hours of Calm' : 0 ,

Hours of Varying Wind Direction : O l Hours of Missing Data for All : _0 '

Hours of No Stability Class : 0 ,

Total hours of observation : 4 <

l 4

_. ~ . . . , , , . 1

f l

1 JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 !

Report Date : 96-04-11 Data Period : 95 1 00:00 to 95-12-31 23:00 Stability Class: A delta T/ delta z 61->10 m :Jelta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++ I Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 0 0 0 0 0 0 0 0.00 NNE O O O O O O O 0.00 NE O O O 0 0 0 0 0.00 ENE 0 0 0 0 0 0 0 0.00 E O O O 0 0 0 0 0.00 ESE O 0 0 0 0 0 0 0.00 SE 0 0 0 0 0 0 0 0.00 SSE 0 0 0 0 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 I SSW 0 0 0 0 0 0 0 0.00 j SW 0 0 0 0 0 0 0 0.00 '

WSW 0 0 0 0 0 0 0 0.00 l

, W 0 0 0 0 0 0 0 0.00 l I

WNW 0 0 0 0 0 0 0 0.00 I i

NW 0 0 0 0 0 0 0 0.00 l l NNW 0 0 0 0 0 0 0 0.00 !

l l Total 0 0 0 0 0 0 0 i Hours of Calm: 0 Hours of Varying Wind Direction : 0 l Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 6 j l

l l

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- . ~ . _ . ~ . . _ . . . . . . _ _ . . . _ . _ . _ , _ . . . , . . . - - . _ . . . _ ._ _ . _..

5

~ ~

JOINT' WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS

' SITE: V. C. SUNNER Nuclear Station UNIT'1

Report Date : 96-04-11 LData Period :

95 1 00:00: to 95-12-31'23:00 ,

Stability Class: B delta T/ delta z '61->10 m Delta T With Substitution Wind. Sensor Height : 10 meterf. +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed ,

i Wind Wind Speed (miles / hour)

Direction- .

Mean-0.75 <4 4- <8 . 8- <13 13- <19 19- 24 >24 . Total' Speed 4 N 'O O 0 0 0 0 .0 0.00 NNE 0. 0 0 0 C: 0 0 0.00 '

NE O 0 0 0 0 0 0 0.00

.ENE O 0 0 0. .0 0 0 0.00 E O O O O O O O 0.00 ESE O O 0 0 0 0 0 0.00 SE O O O O 0 0 0 0.00

, SSE O 0 0 0 0 0 0 0.00 S 0 0 0 0 0 0. 0 0.00

SSW 0 0 0 0 0 0 0 0.00-SW 0 0 0- 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0- 0. 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 .;

0.00 NW= 0 0 0 0 0 0 0 NNW. 0 0. 0 0 0 0 0.00 0

)

l Total- 0 0' 0 0 0 0 0 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0

~ Hours of. Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of< observation : 6 1

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I I

l JOINT WIND ~ FREQUENCY DISTRIPUTION BY STABILITY CLASS SITE: V. C. SUMMER Nucle.ar Station UNIT 1' 1

Report Date : 96-04-11

. Data Period : 95 1 00:00 to- 95-12-31 23:00 Stability, Class::C- delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor' Height : 10 meter +++ Batch Release Times Only'+++

j. Hours.at-Each. Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 0 O O 0- 0 0 0 0.00

NNE O 0. -0 0 0 0 0 0.00 !

! .NE 0 0 0 0 0 0 0 0.00 J ENE- 0 0 0 0 0 0 0 0.00 '

E O O O O O O O 0.00 1 EESE O O O O O 0- 0 0.00 SE- 0 0 0 0 0 0 0 0.00 l

SSE O O 0 0 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00

'SSW -0 0 0 0 0 0 0 0.00 SW 0 'O 0 0 0 0 0 0.00 i WSW- 0- 0 0 0 0 0 0 0.00 L

l'

-W 0 0 0 0 0 o 0 0.00 WNW 0 0 0 0 0 0 0 0.00 NW '0 0 0 0 0 0 0 0.00 NNW 0- 0~ 0 0 0- 0 0 0.00 l

Total- 0 0 0 0 0 0 0 l Hours of Calm : 0 l- Hours of. Varying Wind. Direction : 0 i Hours of Missing Data : 0 Hours of Missing Data for All- : 0 Hours of No Stability Class : O l Total hours of observation- : 6 l.

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JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CIASS SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04-11 Data Period : 95 1 00:00 to 95-12-31 23:00 Stability Class: D delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only +++

Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 0 0 0 0 0 0 0 0.00 NNE O O O 0 0 0 0 0.00 NE O O O O 0 0 0 0.00 ENE 0 0 0 0 0 0 0 0.00 E 0 0 0 0 0 0 0 0.00 ESE O 0 0 0 0 0 0 0.00 SE 0 0 0 0 0 0 0 0.00 SSE 0 0 0 0 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00 SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00 NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 Total 0 0 0 0 0 0 0 Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data : 0 Hours of Missing Data for All : 0 Hours of No Stability Class : 0 Total hours of observation : 6

, - , . . . ~ . - . - . - . - , . - - _ ~ . - - - . _ . . . - ~ . . . - . - . ~ . . . . ~ . - - . - ~ - . .

l JOINT WIND FREQUENCY DISTRIBUTION.BY STABILITY CLASS SITE: V. C. SUMMER Nuclear Station UNIT 1 l

Report Date : 96-04 l Data Period : 95 1 00:00 :to 95-12-31 23:00.

l ; Stability Class: E delta T/ delta z 61->10 m Delta T With Substitution

. Wind Sensor-Height :.10 meter +++ Batch Release Times Only +++

l Hours at Each Wind Direction and Speed l'

( Wind' Wind Speed (miles / hour)

! . Direction Mean l~ 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N O -0 0 0 0 0 0 0.00 i i_ NNE 0- 0' O 0 0 0 0 0.00 l

NE. 0 0 0 0 0 0 0 0.00 i ENE O O O O O 0 0 0.00-i E O .0 0 0 0 0' 0 0.00 ESE O O O O O 0 0 0.00

.SE O' O- 0 0 0 ~0 0 0.00 SSE O 0 0 0 0 0 0 0.00 S 0 1 2 0 0 0 3 8.52 SSW- 0 1. O. 0 0 0 1 6.35

SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 l WNW 0 0 0 0 0' O O 0.00 l NW .0 0 0 0 0 0 0' O.00 l NNW 0 0 0 0 0 0- 0 0.00 i

l Total' O 2 2 0 0 0 4 :

I Hours of Calm- : 0 l ' Hours of Varying Wind Direction : 0 l Hours of Missing Data .

0 l Hours of Missing Data for All : 0

. Hours of No Stability Class : -0 Total hours of observation : 6-i i

. . _ . _ . _ _ _ _ _ _ . _ . _ . > . ~ .-- ._.m.. . . . . _ _ ...._..m

._ . _ _ - . . _ . _ . . . . _ _ _ = . . . _ . . _ _ . . . _

I l JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS [

SITE: V. C. SUMMER Nuclear Station UNIT 1 Report Date : 96-04 Data Period': 95 1 00:00 to 95-12-31 23:00 Stability Class: F delta T/ delta z 61->10 m Delta T With Substitution Wind Sensor Height : 10 meter +++ Batch Release Times Only'+++

Hours at Each Wind Direction and Speed Wind Wind Speed (miles / hour)

' Direction Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N- 0 0 0 0 0 0 0 0.00 NNE O O O O 0 0 0 0.00 l NE O O 0 0 0 0 0 0.00 ENE O O O O O 0 0 0.00

! E 0 'O O O O O 0 0.00 I ESE O O O 0 0 0 0 0.00 ,

SE O O O O O O 0 0.00 i SSE O O O O 0 0 0 0.00 S 0 0 2 0 0 0 2 8.71' SSW 0 0 0 0 0 0 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00

WNW 0 0 0 0 0 0 0 0.00

} NW 0 0 0 0 0 0 0 0.00 .

l- NNW 0 0 '

0 0 0 0 0 0.00 I .

l Total 0 0 2 0 0 0 2 '

Hours of Calm : 0 Hours of Varying Wind Direction : 0 Hours of Missing Data- : 0 i l Hours of Missing Data for All : 0 I Hours of No Stability Class : .0 ;

Total hours of observation : 6 i

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JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS' SITE: V. C. SUMMER Nuclear Station UNIT 1 .

Report Date : 96-04-11 ,

Data Period : 95-10 '1 00:00- to 95-12-31 23:00 Stability Class: G delta T/ delta z 61->10 m Delta T With Substitution

' Wind Sensor Height : -10 meter

+++ Batch Release. Times'Only +++. !

Hours at Each Wind Direction and Speed' '

Wind _ Wind Speed (miles / hour) l Direction- Mean 0.75- <4 4- <8 8- <13 13- <19 19- 24 >24 Total' Speed N 0- 0 0 0- 0 0 -0 0.00

NNE O O O- 0 0 0 0 0.00 NE O O 0 0 0 'O 0. 0.00 ,

ENE O O O 0- 0 0 0 0.00 !

E O 0 0 0 0 0 0' O.00 ESE O O O 0 0 0 0 0.00 SE O O O O O 0. 0 0.00

.SSE O O O O 0 0 0 0.00 S 0 0 0 0 0 0 0 0.00' SSW 0 0 0 0 0 0 .- 0 0.00 SW 0 0 0 0 0 0 0 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 WNW 0 0 0 0 0 0 0 0.00-NW 0 0 0 0 0 0 0 0.00 NNW 0 0. 0 0 0 0 0 0.00 l

Total 0 0 0 0 0 0 0 Hours of Calm : 0 +

Hours of Varying Wind Direction : 0- ,

Hours of Missing Data : 0

' Hours of Missing Data for All : 0 Hours of No Stability Class : 0 ,

Total hours of observation : 6 i l

l 1

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l-JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS l

SITE: V. C. SUMMER Nuclear Station UNIT 1 Report'.Date :-- 96-04-11 Data Period : 95 1 00:00 to 95-12-31 23:00 Stability Class:ALL delta T/ delta.z 61->10 m Delta T With substitution i Wind Sensor Height : '10 meter +++ Batch Release Times Only +++

(f ' Hours at Each Wind Direction and Speed i--

t l Wind Wind Speed (miles / hour)

[ Direction .

Mean

[

0.75- <4 (- <8 8- <13 13 ,<19 19- 24 >24 . Total' Speed

l. .

l .N O- .0 0 0. 0 0 0 0.00- 1 j NNE 0. 0 0 0 0 0 0 0.00

.: NE O O O O O O O 0.00 l ENE, 0. 0 0 0 0 0 0 0.00 {

~ E- 0 .0 0 .0 0 0 0 0.00 )

ESE- 0 .0 0 0 0 0 0 0.00 SE O O 0 0 0 0 0' O.00 SSE 0 0 0 0 0 0 0 0.00 S 0 1 4 0 0 0 5 8.59 i SSW 0 1 0 0 0 0 1 6.35 j SW 0 0 0 0 0 0 0- 0.00 WSW 0 0 0 0 0 0 0 0.00 W 0 0 0 0 0 0 0 0.00 J WNW 0 0 0 0 0 0- 0 0.00 NW 0 0 0 0 0 0 0 0.00 NNW 0 0 0 0 0 0 0 0.00 Total O '2- 4 0 0 0 6 Hours of Calm : 0 Hours of Varying Wind Direction : l l 0 -1 Hours of Missing' Data for All : 0 '

Hours of No Stability Class : 0 Total hours of observation : 6 t .

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ML20107L871

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