Text

Annual Radioactive Effluent Release Report
	ML18116A688
Person / Time
Site:	Summer
Issue date:	04/25/2018
From:	Ryan Justice; South Carolina Electric & Gas Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	RC-18-0059
	Download: ML18116A688 (51)
	v • d • e

A SCANA COMPANY Robert L. Justice General Manager, Nuclear Plant Operations 803.345.4707 April 25, 2018 Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555

Dear Sir / Madam:

Subject:

VIRGIL C. SUMMER NUCLEAR STATION UNIT 1 DOCKET NO. 50-395 OPERATING LICENSE NO. NPF-12 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT Enclosed is the South Carolina Electric & Gas Company Annual Radioactive Effluent Release Report as required by 10CFR50.36a, Section 6.9.1.8 of the Virgil C. Summer Nuclear Station Technical Specifications and Section 1.6.2 of the Offsite Dose Calculation Manual. This submittal covers the period of January 1 through December 31, 2017.

Should there be any questions, please contact Ms. Susan B. Reese at (803) 345-4591.

Very truly yours, SBR/RLJ/rp Enclosures c:

w/o enclosures unless noted J. E. Addison NRC Resident Inspector W. K. Kissam K. T. Ellison J. B. Archie T. D. Riley J. H. Hamilton NSRC G. J. Lindamood Susan Jenkins (w/enclosures)

W. M. Cherry C. S. Logan (ANI), (w/enclosures)

C. Haney RTS (LTD 313)

S. A. Williams File (818.02-1, RR 8350)

K. M. Sutton PRSF (RC-18-0059), (w/enclosures)

V. C. Summer Nuclear Station

P. 0. Box 88

Jenkinsville, South Carolina

29065

F (803) 941-9776

www.sceg.com

SCE&G A SCANA COMPANY ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT VIRGIL C. SUMMER NUCLEAR STATION UNIT 1 FOR THE OPERATING PERIOD JANUARY 1, 2017 - DECEMBER 31, 2017 m

p-i i>>Tr i 11 1

Prepared by:

Michelle Westbury, Specialist Health Physics

Reviewed by:

ry Timothy D. Riley Timothy D. Riley, Supervisor Health Physics Approved by:

Todd Ellison, Manager Health Physics and Safety Services

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 VIRGIL C. SUMMER NUCLEAR STATION SOUTH CAROLINA ELECTRIC & GAS Introduction 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 is submitted in fulfillment of the requirements in the V. C. Summer Nuclear Station Operating License Technical Specifications Section 6.9.1.8, Offsite Dose Calculation Manual (ODCM) Section1.6.2 and 10CFR50.36(a) and follows the reporting details specified in USNRC Regulatory guide 1.210).

Summary information of radioactive gaseous and liquid effluents is presented along with a summary of radioactive waste disposal as well as an evaluation of the radiological impact on man due to operation of the Virgil C. Summer Nuclear Station. Supplemental information including release limits also required by USNRC Regulatory Guide 1.21 is provided as Appendix A.

A.

Supplemental Information Regulatory limits for doses, dose rate and effluent concentration limits presented in Supplemental Information arefrom the Virgil C. Summer Nuclear Station ODCM and 40 CFR 190. Average energy ( E ) is not applicable to the method for determining release rate limits for fission and activation gaseous effluents, therefore, it has been omitted. A compilation of required supplemental information is provided in Appendix A.

B.

Gaseous Effluents Gaseous effluents released from ground level are summarized in Tables 1 and 2. An elevated release pathway does not exist at Virgil C. Summer Nuclear Station. Cumulative doses are discussed in Section E.

The error for both liquid and gaseous release totals is estimated as twenty percent for radioactive radionuclides sampled and released in effluent pathways. Error was derived using root sum of squares methodology considering known sources of error including calibration of detectors and flow measurement equipment, sample preparation, and analysis counting error.

C.

Liquid Effluents Liquid effluents are summarized in Tables 3 and 4. Estimated total errors are expressed as in Section B above.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 VIRGIL C. SUMMER NUCLEAR STATION SOUTH CAROLINA ELECTRIC & GAS D.

Solid Waste Shipments Solid waste shipments are summarized in Table 5. Curie content of radioactive waste packages is determined by dose rates and/or gamma spectroscopy analysis of samples.

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.

E.

Radiological Impact on Man Dose to the maximum exposed individual in the unrestricted area was calculated using measured plant gaseous effluents and meteorological data in accordance with the Offsite Dose Calculation Manual. The source term involved no Waste Gas Decay Tank (WGDT) releases, 8.44 days of 6-inch Reactor Building purge releases, 34.73 days of 36-inch Reactor Building purge releases and a continuous 12-month Main Plant vent release.

Doses are summarized in Table 6. The total gaseous activities released are presented in Tables 1 and 2. The highest quarterly air doses at the station boundary resulting from the release of noble gases were 2.19E-04 mrad for gamma during the second quarter and 7.71 E-05 mrad for beta during the second quarter. The maximum quarterly organ dose attributed to the releases, excluding Carbon-14, was 8.13E-04 mrem. Cumulative annual dose was 2.31E-04 mrad, 9.16E-05 mrad and 8.60E-04 mrem for gamma, beta, and organ dose, respectively. Discussion of the impact of Carbon-14 is included in Section K.

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 230 Waste Monitor Tank batch releases, 27 Condensate Backwash Receiver Tank batch releases, 6 NaOH Sump batch releases, 0.80 days of Steam Generator Blowdown release and a continuous Turbine Building Sump release.

Doses are summarized in Table 6 and total liquid radioactivity released is described in Tables 3 and 4. The highest quarterly total body dose to the maximum exposed individual resulting from the release of radioactive liquid was 6.78E-03 mrem during the first quarter.

The highest organ dose was 6.79E-03 mrem to the GI-LLI for the first quarter. Cumulative annual doses for the hypothetical maximum exposed individual were 9.99E-03 mrem for the total body and 1.18E-2 mrem for the GI-LLI, the maximum annual organ. The GI-LLI was the maximum exposed organ for all four quarters.

Dose rates and concentrations were below station limits as specified in Supplemental Information,Section II A, B, and C during all the effluent releases.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 VIRGIL C. SUMMER NUCLEAR STATION SOUTH CAROLINA ELECTRIC & GAS Radiation exposure to members of the public within the site boundary was assessed through calculation of gamma and beta air dose at 0.25 miles of the gaseous effluent release point and direct measurement of exposure using thermoluminescent dosimeters.

Onsite air dose for this reporting period was 7.52E-04 mrad gamma and 2.98E-04 mrad beta, well below levels that can be distinguished above background. Quarterly thermoluminescent dosimetry (TLD) data from four onsite monitoring locations within 0.2 miles of the Reactor Building and eight locations at the site boundary were analyzed and compared with respective pre-operational background and previous year history. Results showed that the 2017 quarterly dose rates did not differ significantly from the pre operational or 2016 dose rates.

The impact of Independent Spent Fuel Storage Installation (ISFSI) operation which began cask storage on March 26, 2016 was assessed using six TLD locations monitoring the perimeter of the ISFSI site. The TLD locations were monitored for three quarters prior to fuel storage and continued to be monitored through 2017 during which fuel storage casks were stored. Analysis of monitoring results showed no statistically significant increase in perimeter dose as a result of ISFSI operation.

Based on review of gaseous effluent dose calculations and analysis of onsite TLD monitoring it was concluded that doses to members of the public inside the site boundary were indistinguishable from normal background dose.

Radiation doses from radioactive effluents to workers at the Fairfield Hydro Station for this reporting period were calculated to be 1.09E-05 and 4.33E-06 mrad for gamma and beta, respectively.

Radiation doses from radioactive effluents to workers at the New Nuclear Site for this reporting period were calculated to be 9.41 E-05 and 3.73E-05 mrad for gamma and beta, respectively.

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.

Abnormal Releases None

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 VIRGIL C. SUMMER NUCLEAR STATION SOUTH CAROLINA ELECTRIC & GAS G.

Meteorology The meteorological data for 2017 was collected and analyzed. An annual meteorological summary report of joint frequency distributions of wind direction and speed by atmospheric stability class for each quarter is included as Enclosure A.

The wind direction and wind speed data used were acquired from the 10-meter level of the primary monitoring tower. Stability was determined by the primary differential temperature (61 to 10 meter).

The combined annual data recovery for wind direction, wind speed and stability was 99.7%. Primary variable recovery rates were as follows: wind direction (10 m)- 99.7%,

wind speed (10 m)- 99.7%, and differential temperature (61 -10 m)- 99.7%.

H.

Offsite Dose Calculation Manual The Virgil C. Summer Nuclear Station ODCM was not revised in 2017.

Offsite Dose Calculation Manual Reportable Incidents ODCM Table 1.1-1 requires a flow rate measuring device for the Nuclear Blowdown Effluent Line. Station procedures identify flow Transmitter IFT04811 as the flow measuring device. Although a computer monitoring point is included as a system output and is calibrated along with the flow transmitter, recorder IFR04811 is used exclusively to verify system operability during performance of operational tests. From May 29, 2017 until November 14, 2017, the recorder IFR04811 was out of service preventing performance of operability tests and therefore the flow rate measurement device was considered inoperable during this period. System restoration delays resulted from troubleshooting and replacement of an obsolete recorder with a new recorder design through the engineering design change process.

At Summer Station, the Nuclear Blowdown Effluent Line is not used for making radioactive effluent releases and no releases were made through this pathway during 2017.

J.

Major Changes to Radioactive Waste Treatment Systems During 2017, there were no major changes to the Radioactive Waste Treatment System.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 VIRGIL C. SUMMER NUCLEAR STATION SOUTH CAROLINA ELECTRIC & GAS K.

Carbon-14 Gaseous Effluents Carbon-14 production and release estimates were calculated using EPRI Report 1021106(2), "Estimation of Carbon-14 in Nuclear Plant Gaseous Effluents". This calculation uses active core coolant mass, average neutron flux by energy and reactor coolant nitrogen concentrations to determine Carbon-14 generation based upon an effective full power year. The estimated generation for VC Summer Nuclear station for 2017 was 8.15 curies.

Public dose estimates were performed using Regulatory Guide 1.109 (3) methodology. Carbon dioxide is assumed to make up 20% of the Carbon-14 gaseous emissions from the station based upon available references and on-site testing. Carbon-14 is the highest dose contributor of all radionuclides released in gaseous effluents. Annual dose resulting from Carbon-14 releases in gaseous effluents is estimated to be 1.33E-01 mrem total body and 6.66E-01 mrem to the maximum organ (bone).

References

1. Regulatory Guide 1.21, "Measuring, Evaluating, and Reporting Radioactivity in Solid Wastes and Releases of Radioactive Materials in Liquid and Gaseous Effluents From Light Water Cooled Nuclear Power Plants", Revision 1,US Nuclear Regulatory Commission, Washington D.C., 1974.

2. EPRI Report 1021106, "Estimation of Carbon-14 in Nuclear Power Plant Gaseous Effluents",

Electric Power Research Institute, Palo Alto, CA, 2010.

3. Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of

'Reactor effluents for the Purpose of Demonstrating compliance with 10 CFR50, Appendix I", US Nuclear Regulatory Commission, Washington D.C., 1976.

APPENDIX A ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 VIRGIL C. SUMMER NUCLEAR STATION SOUTH CAROLINA ELECTRIC & GAS SUPPLEMENTAL INFORMATION I.

Regulatory Dose 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. Iodines, Particulates (half-lives > 8 days) and Tritium:

The dose to an individual from radioidines, 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).

II.

Dose Rate and Effluent Concentration Limits:

A. Fission and Activation Gases The dose rate in unrestricted areas due to radioactive materials released in gaseous effluents shall be limited to less than or equal to 500 mrem/year to the total body and less than or equal to 3000 mrem/year to the skin (ODCM, Section 1.2.2.1).

APPENDIX A ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 VIRGIL C. SUMMER NUCLEAR STATION SOUTH CAROLINA ELECTRIC & GAS B. Iodines, 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).

C. Liquid Effluents:

The concentration of radioactive materials released from the site shall be limited to 10 times the concentrations specified in 10 CFR 20, Appendix B, Table 2, Column 2 for radionuclides other than dissolved or entrained noble gases. For dissolved or entrained noble gases, the concentration shall be limited to 2E-04 pCi/ml total activity (ODCM, Section 1.1.2.1).

III.

Average Energy:

Not Applicable IV.

Measurements and Approximations of Total Radioactivity:

A. Fission and activation gases: Gamma spectrometry (FIPGe)

B. Iodines: Gamma spectrometry (HPGe)

C. Particulates: Gamma spectrometry (HPGe), beta proportional counting, alpha proportional counting D. Tritium: Liquid scintillation E. Liquid effluents:

Gamma spectrometry (HPGe), liquid scintillation (H-3), beta proportional counting, alpha proportional counting.

APPENDIX A ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 VIRGIL C. SUMMER NUCLEAR STATION SOUTH CAROLINA ELECTRIC & GAS V.

Batch Releases:

A.

Gaseous:

1.

Number of batch releases: 0

2.

Total time period for batch releases: 0

3.

Maximum time period for a batch release: 0

4.

Average time period for a batch release: 0

5.

Minimum time period for a batch release: 0 B.

Liquid:

1.

Number of batch releases:

For first quarter, 2017 For second quarter, 2017 For third quarter, 2017 For fourth quarter, 2017 period for batch releases:

min. for first quarter, 2017 min. for second quarter, 2017 min. for third quarter, 2017 min. for fourth quarter 2017 time period for a batch release:

min. for second quarter, 2017 min. for second quarter, 2017 min. for third quarter, 2017 min. for fourth quarter, 2017 74 115 42 32

2.

Total time 5.20E+03 7.70E+03 2.92E+03 2.36E+03 Maximum 7.80E+01 1.00E+02 8.50E+01 8.40E+01

APPENDIX A ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 VIRGIL C. SUMMER NUCLEAR STATION SOUTH CAROLINA ELECTRIC & GAS

4.

Average time period for batch releases:

6.75E+01 min. for first quarter, 2017 5.79E+01 min. for second quarter, 2017 6.22E+01 min. for third quarter, 2017 7.16E+01 min. for fourth quarter, 2017

5.

Minimum time period for a batch release:

1.00E+00 min. for first quarter, 2017*

1.00E+00 min. for second quarter, 2017*

1.00E+00 min. for third quarter, 2017*

1.00E+01 min. for fourth quarter, 2017*

NaOH sump release

6.

Average stream flow during periods of release of effluent into a flowing stream:

4.35E+06 gpm for first quarter, 2017 4.06E+06 gpm for second quarter, 2017 7.25E+06 gpm for third quarter, 2017 3.45E+06 gpm for fourth quarter, 2017 Abnormal Releases:

A.

Gaseous:

1.

Number of releases: 0

2.

Total activity released: 0 B.

Liquid:

1.

Number of releases: 0

2.

Total activity released: 0

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 Virgil C. Summer Nuclear Station, Unit 1 TABLE 1 Gaseous Effluents-Summation of All Releases Type of Effluent Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Error %

A. Fission & Activation Gases

1. Total Release

2. Average Release Rate for Period

3. Percent of Applicable Limit Curies 7.71 E-04 1.18E-01 pCi/sec 9.91 E-05 1.50E-02 2.86E-05 4.37E-03 0.00E+00 2.85E-02 0.00E+00 3.59E-03 O.OOE+OO 2.19E-04 2.00E+01 B. Iodines

1. Total lodine-131

2. Average Release Rate for Period

3. Percent of Applicable Limit Curies 0.00E+00 0.00E+00 0.00E+00 0.00E+00 pCi/sec O.OOE+OO 0.00E+00 O.OOE+OO 0.00E+00 O.OOE+OO 0.00E+00 O.OOE+OO 0.00E+00 0.00E+00 C. Particulates

1. Total Particulates (Half-lives > 8 days)

2. Average Release Rate for Period

3. Percent of Applicable Limit

4. Gross Alpha Activity Curies 0.00E+00 O.OOE+OO pCi/sec 0.00E+00 0.00E+00 0.00E+00 O.OOE+OO Curies 0.00E+00 0.00E+00 0.00E+00 4.12E-06 2.00E+01 O.OOE+OO 5.18E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 D. Tritium

1. Total Release Curies 7.20E-03 1.43E+00 7.51 E-02 0.00E+00 2.00E+01

2. Average Release Rate for Period pCi/sec 9.26E-04 1.82E-01 9.45E-03 0.00E+00

3. Percent of Applicable Limit 5.47E-05 1.08E-02 5.70E-04 0.00E+00 E. Carbon-14

1. Total Release Curies 2.03E+00 2.00E+00 2.05E+00 2.05E+00 N/A

2. Average Release Rate for Period pCi/sec 2.58E-01 2.58E-01 2.58E-01 2.58E-01

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 Virgil C. Summer Nuclear Station, Unit 1 TABLE 2 Gaseous Effluents-Ground Level Releases Continuous Mode Batch Mode Nuclides Released Units Qtr 1 Qtr 2 Qtr 3 Qtr4 Qtr 1 Qtr 2 Qtr 3 Qtr4

1. Fission and Activation Gases Ar-41 Curies 7.71 E-04 1.18E-01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Xe-135 Curies 0.00E+00 0.00E+00 0.00E+00 2.85E-02 O.OOE+OO 0.00E+00 0.00E+00 O.OOE+OO Total for Period Curies 7.71 E-04 1.18E-01 0.00E+00 2.85E-02 0.00E+00 O.OOE+OO 0.00E+00 O.OOE+OO

2. Iodines Total for Period Curies 0.00E+00 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 0.00E+00 0.00E+00 0.00E+00

3. Particulates Be-7 Curies 0.00E+00 0.00E+00 0.00E+00 4.12E-06 O.OOE+OO 0.00E+00 0.00E+00 0.00E+00 Br-82 Curies 0.00E+00 0.00E+00 0.00E+00 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO Total for Period Curies O.OOE+OO O.OOE+OO O.OOE+OO 4.12E-06 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO

4. Tritium H-3 Curies 7.20E-03 1.43E+00 7.51 E-02 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 Virgil C. Summer Nuclear Station, Unit 1 TABLE 3 Liquid Effluents - Summation of All Releases Type of Effluent Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Error %

A. Fission & Activation Products

1.

Total Release (not including Tritium, Gases, and Alpha)

2.

Average Diluted Concentration During Period

3.

Percent of Applicable Limit Curies 4.35E-03 8.94E-03 1.04E-03 1.19E-03 pCi/ml 5.06E-11 8.38E-11 1.35E-11 3.45E-11 8.70E-02 1.79E-01 2.09E-02 2.38E-02 2.00E+01 B. Tritium

1.

Total Release

2.

Average Diluted Concentration During Period

3.

Percent of Applicable Limit Curies 5.58E+02 7.20E+01 8.01 E+01 9.20E+01 pCi/ml 6.49E-06 6.74E-07 1.03E-06 2.67E-06 6.49E-01 6.74E-02 1.03E-01 2.67E-01 2.00E+01 C. Dissolved and Entrained Gases

1.

Total Release

2.

Average Diluted Concentration During Period

3.

Percent of Applicable Limit Curies 5.01 E-04 2.24E-03 7.38E-04 2.17E-04 pCi/ses 5.83E-12 2.09E-11 9.51 E-12 6.31 E-12 2.91E-06 1.05E-05 4.76E-06 3.15E-06 2.00E+01 D. Gross Aloha Radioactivity

1.

Total Release Curies 0.00E+00 O.OOE+OO 0.00E+00 0.00E+00 0.00E+00 E. Waste Volume Released (Pre-Dilution)

Liters 1.03E+07 6.82E+07 1.62E+07 1.99E+07 3.00E+00 F. Volume of Dilution Water Used Liters 8.59E+10 1.07E+11 7.76E+10 3.45E+10 4.30E+00

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 Virgil C. Summer Nuclear Station, Unit 1 TABLE 4 Liquid Effluents Nuclides Released Units Qtr 1 Continuous Mode Qtr 2 Qtr 3 Qtr 4 Qtr 1 Batch Mode Qtr 2 Qtr 3 Qtr 4 Ag-110m Curies 0.00E+00 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 1.19E-06 Ar-41 Curies 0.00E+00 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 1.15E-05 5.51 E-05 O.OOE+OO As-76 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 8.55E-06 2.34E-06 O.OOE+OO Ba-140 Curies 0.00E+00 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 3.89E-06 O.OOE+OO O.OOE+OO Co-58 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 9.37E-04 8.69E-05 1.26E-04 Co-60 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 2.82E-03 3.41 E-03 2.75E-04 4.00E-04 Cr-51 Curies 0.00E+00 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 1.21 E-03 1.00E-05 O.OOE+OO Cs-137 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 4.00E-05 O.OOE+OO O.OOE+OO 4.16E-05 Fe-55 Curies 0.00E+00 O.OOE+OO O.OOE+OO O.OOE+OO 5.03E-04 8.87E-04 2.83E-04 2.58E-04 Fe-59 Curies 0.00E+00 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 1.46E-05 O.OOE+OO O.OOE+OO H-3 Curies 2.41 E-03 O.OOE+OO 6.54E-03 O.OOE+OO 5.58E+02 7.20E+01 8.01 E+01 9.20E+01 Kr-85M Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 4.42E-06 O.OOE+OO Mn-54 Curies 0.00E+00 O.OOE+OO O.OOE+OO O.OOE+OO 1.35E-04 2.51 E-04 9.91 E-06 3.53E-05 Na-24 Curies 0.00E+00 O.OOE+OO O.OOE+OO O.OOE+OO 1.12E-05 O.OOE+OO O.OOE+OO 9.71 E-06 Nb-94 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 4.37E-06 O.OOE+OO O.OOE+OO O.OOE+OO Nb-95 Curies 0.00E+00 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 7.77E-04 8.32E-05 5.60E-05 Ni-63 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 6.06E-04 6.70E-04 2.25E-04 1.50E-04 Sb-124 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 8.11E-06 O.OOE+OO O.OOE+OO Sb-125 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 2.25E-04 5.00E-05 3.74E-05 8.75E-05 Sn-113 Curies 0.00E+00 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 7.60E-06 O.OOE+OO O.OOE+OO Te-123M Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 1.99E-05 6.29E-06 O.OOE+OO Te-125m Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 2.34E-04 O.OOE+OO O.OOE+OO Xe-133 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 5.01 E-04 2.14E-03 5.62E-04 2.17E-04 Xe-133m Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 2.51 E-05 O.OOE+OO O.OOE+OO Xe-135 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 5.51 E-05 1.16E-04 8.57E-07 Zn-65 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 9.15E-06 O.OOE+OO 1.06E-05 Zr-95 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 4.37E-04 2.52E-05 1.16E-05 Total for Period Curies 2.41 E-03 0.00E+00 6.54E-03 0.00E+00 5.58E+02 7.20E+01 8.01 E+01 9.20E+01

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 Virgil C. Summer Nuclear Station, Unit 1 TABLE 5 Solid Waste Shipments

1. Solid Waste Shipped Offsite for Burial or Disposal (Not irradiated fuel).

2017 Est. Total Type of Waste Unit Total Error, %

a. Spent resins, filters, sludge, m3 5.88E+01 2.5E+01 evaporator bottoms, etc.

Ci 1.53E+02

b. Dry compressible waste, Metals, m3 4.85E+02 2.5E+01 Contaminated equipment, etc.

Ci 1.99E-01

c. Irradiated components, m3 0.00E+00 control rods, etc.

Ci 0.00E+00 N/A

d. Other waste, Oil, etc.

m3 1.07E+02 2.5E+01 Ci 1.76E+01

2. Estimate of major nuclide composition for the year (by type of waste) for concentrations above 1.0%.

a.

Ni-63 73.89 %

1.13E+02 Ci Co-60 13.36 %

2.04E+01 Ci Fe-55 3.60 %

5.48E+00 Ci H-3 3.26 %

4.97E+00 Ci Mn-54 2.66 %

4.05E+00 Ci Sb-125 1.07 %

1.63E+00 Ci

b.

Ni-63 36.92 %

7.36E-02 Ci Co-60 24.93 %

4.97E-02 Ci Fe-55 24.17 %

4.82E-02 Ci Nb-95 4.28 %

8.53E-03 Ci Zr-95 2.31 %

4.61 E-03 Ci Co-58.

1.87 %

3.73E-03 Ci Cr-51 1.53 %

3.06E-03 Ci Mn-54 1.19 %

2.38E-03 Ci Sb-125 1.04 %

2.07E-03 Ci

c.

None

d.

Cr-51 22.95 %

4.03E+00 Ci Co-58 20.67 %

3.63E+00 Ci Co-60 18.68 %

3.28E+00 Ci Nb-95 13.44%

2.36E+00 Ci Fe-55 9.17%

1.61E+00 Ci Zr-95 7.52 %

1.32E+00 Ci Mn-54 3.55 %

6.23E-01 Ci Ni-63 1.99 %

3.50E-01 Ci Fe-59 1.03 %

1.80E-01 Ci

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 Virgil C. Summer Nuclear Station, Unit 1 TABLE 5 Solid Waste Shipments

3. Solid Waste Disposition Numbers of Shipments Mode of Transportation Destination 4

Hittman Energy Solutions Processing/Disposal Facility Barnwell, SC 2

Landstar Alaron - Wampum, PA 10 PGT Trucking Alaron - Wampum, PA 1

Edwards Moving & Rigging, Inc.

Energy Solutions, LLC.

Barnwell Disposal Facility Barnwell, SC 1

Cast Transportation UniTech Services Group, Inc.

Oakridge, TN 1

Federal Express Alaron - Wampum, PA Notes:

1.

Four shipments by Hittman containing (1)10-160 High Integrity Container of Dewatered Primary Resin; (1) 8-120 High Integrity Container of Dewatered Mixed Bed Resin; (1) 8-120 High Integrity Container of Dewatered Primary Resin; and (1) 8-120 High Integrity Container of Dewatered Mixed Bed Resin/Charcoal were shipped to the Barnwell Processing/Disposal Facility for burial.

2.

Two shipments by Landstar containing (1) Sealand of Dry Active Waste; (1) B-25 Box of Metal Waste; (6) B-25 Boxes of Dry Active Waste; (2) B-25 Boxes of Wood; (2) B-25 Boxes of Duratek Resin; and (7) B-25 Boxes of Nuclear Blowdown Resin were shipped to Alaron in Wampum, PA for processing.

3.

Ten shipments by PGT Trucking containing (7) Sealands of Dry Active Waste; (3) Sealands of OREX Waste; (8) B-25 Boxes of Metal Waste; (1) B-25 Boxes of Dry Active Waste; (2) B-25 Boxes of Wood; (2) B-25 Boxes of Duratek Resin; (3) Overpack Bags of Dry Active Waste; and (3) B-25 Boxes of Nuclear Blowdown Resin were shipped to Alaron in Wampum, PA for processing.

4.

One shipment by Edwards Moving & Rigging, Inc. containing (1) Original Reactor Vessel Closure Head was shipped to the Barnwell Processing/Disposal Facility for burial.

5.

One shipment by Cast Transportation containing (1) Sealand of Green is Clean Waste; (1) B-25 Box of Sheet Rock as Dry Active Waste; (4) B-25 Boxes of Component Cooling Water Resin was shipped to Oakridge, TN for processing.

6.

One shipment by Federal Express containing (1) Alloy Analyzer was shipped to Alaron in Wampum, PA for processing.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 Virgil C. Summer Nuclear Station, Unit 1 TABLE 6 Gaseous Effluents Parameter Location Dose Dose Limit

% of Limit Qtr 1 Gamma Air Dose (mrad) 1.61 km ENE 1.43E-06 5.00E+00 0.00 Beta Air Dose (mrad) 1.61 km ENE 5.05E-07 1.00E+01 0.00 Total Body Dose (mrem) 1.61 km ENE 1.36E-06 5.00E+00 0.00 Skin Dose (mrem) 1.61 km ENE 1.99E-06 7.50E+00 0.00 Max Organ Dose (mrem) 1.77 km E 4.10E-06 7.50E+00 0.00 Child - Liver Qtr 2 Gamma Air Dose (mrad) 1.61 km ENE 2.19E-04 5.00E+00 0.00 Beta Air Dose (mrad) 1.61 km ENE 7.71 E-05 1.00E+01 0.00 Total Body Dose (mrem) 1.61 km ENE 2.08E-04 5.00E+00 0.00 Skin Dose (mrem) 1.61 km ENE 3.04E-04 7.50E+00 0.00 Max Organ Dose (mrem) 1.77 km E 8.13E-04 7.50E+00 0.01 Child - Liver Qtr 3 Gamma Air Dose (mrad) 1.61 km ENE O.OOE+OO 5.00E+00 0.00 Beta Air Dose (mrad) 1.61 km ENE 0.00E+00 1.00E+01 0.00 Total Body Dose (mrem) 1.61 km ENE O.OOE+OO 5.00E+00 0.00 Skin Dose (mrem) 1.61 km ENE O.OOE+OO 7.50E+00 0.00 Max Organ Dose (mrem) 1.77 km E 4.28E-05 7.50E+00 0.00 Child - Liver Qtr 4 Gamma Air Dose (mrad) 1.61 km ENE 1.09E-05 5.00E+00 0.00 Beta Air Dose (mrad) 1.61 km ENE 1.40E-05 1.00E+01 0.00 Total Body Dose (mrem) 1.61 km ENE 1.03E-05 5.00E+00 0.00 Skin Dose (mrem) 1.61 km ENE 2.26E-05 7.50E+00 0.00 Max Organ Dose (mrem) 1.77 km E 0.00E+00 7.50E+00 0.00 None - None Gamma Air Dose (mrad) 1.61 km ENE 2.31 E-04 1.00E+01 0.00 Beta Air Dose (mrad) 1.61 km ENE 9.16E-05 2.00E+01 0.00 Total Body Dose (mrem) 1.61 km ENE 2.19E-04 1.00E+01 0.00 Skin Dose (mrem) 1.61 km ENE 3.28E-04 1.50E+01 0.00 Max Organ Dose (mrem)*

1.77 km E 8.60E-04 1.50E+01 0.01 Child - Liver

(* Includes dose from all nuclides excluding Carbon-14. See Section K for C-14.)

Liquid Effluents Parameter Max Receptor Dose Dose Limit

% of Limit Qtr 1 Max Organ Dose (mrem)

Adult - Gi-LLi Total Body Dose (mrem)

Adult - Total Body Qtr 2 Max Organ Dose (mrem)

Adult - Gi-LLi Total Body Dose (mrem)

Adult - Total Body Qtr 3 Max Organ Dose (mrem)

Adult - Gi-LLi Total Body Dose (mrem)

Adult - Total Body Qtr 4 Max Organ Dose (mrem)

Adult - Gi-LLi Total Body Dose (mrem)

Adult - Total Body 6.79E-03 6.78E-03 2.71 E-03 1.12E-03 6.95E-04 6.07E-04 1.58E-03 1.48E-03 5.00E+00 1.50E+00 5.00E+00 1.50E+00 5.00E+00 1.50E+00 5.00E+00 1.50E+00 0.14 0.45 0.05 0.07 0.01 0.04 0.03 0.10 Year Max Organ Dose (mrem)

Total Body Dose (mrem)

Adult - Gi-LLi Adult - Total Body 1.18E-02 9.99E-03 1.00E+01 3.00E+00 0.12 0.33 NOTE: See Section E for max organ for each quarter

ENCLOSURE A ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER, 2017 VIRGIL C. SUMMER NUCLEAR STATION SOUTH CAROLINA ELECTRIC & GAS METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION BY QUARTER FOR 2017

Site:

VC Report Printed On: 04/11/2018 16:52 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

01/01/2017 01:00-04/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

A Delta Temperature Extremely Unstable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

0 2

0 1

1 0

4 NNE 0

0 0

NE 0

6 5

0 0

0 11 ENE 0

2 2

0 0

0 4

E 0

1 0

0 0

0 1

ESE 0

1 0

0 0

0 1

SE 0

0 2

0 0

0 2

SSE 0

0 0

S 0

0 1

0 0

0 1

ssw 0

1 2

3 0

0 6

sw 0

4 6

0 0

0 10 wsw 0

11 14 1

0 0

26 w

0 6

5 0

0 0

11 WNW 0

5 o j 0

0 0

8 NW 0

2 5

3 0

0 10 NNW 2

0 2

1 0

0 5

Total 2

41 47 9

1 0

100 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 13 Number of Valid Hours for this Table:

Total Period All Hours 100 Total Hours for the Period:

2160 Page 1 of 8

Site:

VC Report Printed On: 04/11/2018 16:52 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

01/01/2017 01:00 - 04/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

B Delta Temperature Moderately Unstable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

0 3

1

-> J 2

2 11 NNE 0

2 1

2 0

0 5

NE 0

3 4

4 0

0 11 ENE 0

3 2

0 0

0 5

E 0

0 0

ESE 0

1 1

0 0

0 2

SE 0

0 0

SSE 0

0 0

S 0

0 3

0 0

0 3

ssw 0

1 7

1 0

0 9

sw 0

9 8

0 0

0 17 wsw 1

12 10 0

0 0

23 w

0 7

12 0

0 0

19 WNW 1

12 3

0 0

0 16 NW 0

2 5

7 0

0 14 NNW 0

2 1

J 0

0 6

Total 2

57 58 20 2

2 141 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 13 Number of Valid Hours for this Table:

Total Period All Hours 141 Total Hours for the Period:

2160 Page 2 of 8

Site:

VC Report Printed On: 04/11/2018 16:52 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

01/01/2017 01:00 - 04/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

C Delta Temperature Slightly Unstable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

1 4

3 8

1 1

18 NNE 1

4 4

11 0

0 20 NE 5

7 n

J 0

0 18 ENE 2

4 2

0 0

0 8

E 1

2 0

0 0

0 3

ESE 0

1 3

0 0

0 4

SE 0

1 1

0 0

0 2

SSE 0

0 4

0 0

0 4

S 1

5 9

1 0

0 16 ssw 0

10 4

0 0

0 14 sw 1

16 7

0 0

0 24 wsw 3

12 8

0 0

0 23 w

2 11 4

0 0

0 17 WNW 0

7 2

0 0

0 9

NW 2

-> J?

10 1

0 0

16 NNW 2

1 3

2 1

0 9

Total 19 86 71 26 2

1 205 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 13 Number of Valid Hours for this Table:

Total Period All Hours 205 Total Hours for the Period:

2160 Page 3 of 8

Site:

VC Report Printed On: 04/11/2018 16:52 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

01/01/2017 01:00 - 04/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

D Delta Temperature Neutral Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

> 24.0 Total N

4 20 11 13 1

1 50 NNE 5

15 16 15 0

0 51 NE 8

21 20 5

0 0

54 ENE 4

31 22 1

0 0

58 E

11 40 o 3 0

0 0

54 ESE 5

28 4

0 0

0 37 SE 10 28 14 0

0 0

52 SSE 11 20 19 0

0 0

50 S

4 38 19 0

0 0

61 SSW 9

26 17 0

0 0

52 SW 7

45 12 0

0 0

64 WSW 12 40 8

0 0

0 60 W

13 31 6

1 0

0 51 WNW 7

20 2

0 0

0 29 NW 0

27 12 1

0 0

40 NNW 8

13 19 12 2

1 55 Total 118 443 204 48 3

2 818 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 13 Number of Valid Hours for this Table:

Total Period All Hours 818 Total Hours for the Period:

2160 Page 4 of 8

Site:

VC Report Printed On: 04/11/2018 16:52 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

01/01/2017 01:00 - 04/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

E Delta Temperature Slightly Stable Wind Speed (mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE S

ssw sw wsw w

WNW NW NNW Total 156 358 37 0

1 0

552 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 13 Number of Valid Hours for this Table:

Total Period All Hours 552 Total Hours for the Period:

2160 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total 8

11 2

0 0

0 21 5

13 0

0 0

0 18 4

8 0

0 0

0 12 2

8 2

0 0

0 12 7

5 0

0 0

0 12 5

19 0

0 0

0 24 6

41 5

0 0

0 52 14 27 1

0 0

0 42 5

38 6

0 0

0 49 14 45 8

0 0

0 67 29 54 3

0 0

0 86 15 46 0

0 0

0 61 13 15 0

0 0

0 28 20 13 0

0 0

0 33 5

11 5

0 0

0 21 4

4 5

0 1

0 14 Page 5 of 8

Site:

VC Report Printed On: 04/11/2018 16:52 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

01/01/2017 01:00 - 04/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

F Delta Temperature Moderately Stable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

3 2

0 0

5 NNE 2

1 0

0 0

0 3

NE 1

0 0

0 1

ENE

>> J 2

0 0

5 E

3 0

0 0

o 0 ESE 3

1 0

0 0

0 4

SE 1

19 0

0 0

0 20 SSE 9

19 1

0 0

0 29 S

8 23 0

0 0

0 31 ssw 17 18 0

0 0

0 35 sw 22 12 0

0 0

0 34 wsw 17 4

0 0

21 w

9 1

0 0

10 WNW 7

0 0

0 7

NW 5

0 0

0 5

NNW 5

1 0

0 0

0 6

Total 115 103 1

0 0

0 219 Calm Hours not Included above for:

Total Period AH Hours Variable Direction Hours for:

Total Period All Hours Invalid Hours for:

Total Period All Hours Number of Valid Hours for this Table:

Total Period All Hours Total Hours for the Period:

Page 6 of 8

Site:

VC Report Printed On: 04/11/2018 16:52 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

01/01/2017 01:00 - 04/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

G Delta Temperature Extremely Stable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

1 0

0 0

1 NNE 0

0 0

NE 1

0 0

0 1

ENE 0

0 0

E 0

0 0

ESE 2

0 0

0 2

SE 2

4 0

0 0

0 6

SSE 2

8 0

0 0

0 10 S

7 1

0 0

8 ssw 7

4 0

0 0

0 11 sw 17 3

0 0

20 wsw 12 7

0 0

19 w

15 0

0 0

15 WNW 11 0

0 0

11 NW 5

0 0

0 5

NNW

'*> 0 0

0 0

Total 85 27 0

0 0

0 112 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 13 Number of Valid Hours for this Table:

Total Period All Hours 112 Total Hours for the Period:

2160 Page 7 of 8

Site:

VC Report Printed On: 04/11/2018 16:52 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

01/01/2017 01:00 - 04/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

ALL Delta Temperature Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

17 42 17 25 5

4 110 NNE 13 35 21 28 0

0 97 NE 17 43 36 12 0

0 108 ENE 11 50 30 1

0 0

92 E

22 48 3

0 0

0 73 ESE 15 51 8

0 0

0 74 SE 19 93 22 0

0 0

134 SSE 36 74 25 0

0 0

135 S

25 105 38 1

0 0

169 ssw 47 105 38 4

0 0

194 sw 76 143 36 0

0 0

255 wsw 60 132 40 1

0 0

233 w

52 71 27 1

0 0

151 WNW 46 57 10 0

0 0

113 NW 17 45 37 12 0

0 111 NNW 24 21 30 18 4

1 98 Total 497 1115 418 103 9

5 2147 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 13 Number of Valid Hours for this Table:

Total Period All Hours 2147 Total Hours for the Period:

2160 Page 8 of 8

Site:

VC Report Printed On: 04/11/2018 16:53 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

04/01/2017 01:00-07/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

A Delta Temperature Extremely Unstable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

6 2

0 0

8 NNE 1

1 1

3 0

0 6

NE 0

6 2

2 0

0 10 ENE 0

5 5

1 0

0 11 E

0 2

4 0

0 0

6 ESE 0

0 0

SE 0

0 2

0 0

0 2

SSE 0

0 0

S 0

1 3

0 0

0 4

ssw 0

0 7

1 0

0 8

sw 3

33 7

0 0

0 43 wsw 3

24 13 3

0 0

43 w

1 22 3

0 0

0 26 WNW 1

3 3

0 0

0 7

NW 0

0 1

0 0

0 1

NNW J

2 0

0 0

0 5

Total 18 101 51 10 0

0 180 Calm Hours not Included above for:

Total Period Variable Direction Hours for:

Total Period Invalid Hours for:

Total Period Number of Valid Hours for this Table:

Total Period Total Hours for the Period:

All Hours All Hours All Hours All Hours 0

0 7

180 2184 Page 1 of 8

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VC Report Printed On: 04/11/2018 16:53 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

04/01/2017 01:00 - 07/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

B Delta Temperature Moderately Unstable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

2 6

0 0

8 NNE 2

7 3

0 0

0 12 NE 0

3 7

2 0

0 12 ENE 0

3 6

1 0

0 10 E

0 2

1 0

0 0

3 ESE 0

0 0

SE 0

1 o

J) 0 0

0 4

SSE 0

0 2

0 0

0 2

S 0

6 10 0

0 0

16 ssw 0

12 8

0 0

0 20 sw 5

24 8

0 0

0 37 wsw o J 15 1

0 0

22 w

5 9

2 2

0 0

18 WNW 2

5 4

0 0

0 11 NW 1

1 2

0 0

0 4

NNW 2

1 0

0 0

0 3

Total 22 95 59 6

0 0

182 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 7

Number of Valid Hours for this Table:

Total Period All Hours 182 Total Hours for the Period:

2184 Page 2 of 8

Site:

VC Report Printed On: 04/11/2018 16:53 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

04/01/2017 01:00- 07/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

C Delta Temperature Slightly Unstable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

2 5

3 5

1 0

16 NNE 3

3 8

10 0

0 24 NE 1

6 9

4 0

0 20 ENE 1

2 3

1 0

0 7

E 0

1 1

0 0

0 2

ESE 1

2 0

0 0

0 3

SE 0

2 6

0 0

0 8

SSE 2

3 7

1 0

0 13 S

1 11 12 0

0 0

24 ssw 1

28 11 1

0 0

41 sw 6

24 0

0 0

0 30 wsw 3

18 2

1 0

0 24 w

5 7

0 2

0 0

14 WNW 1

3 1

0 0

0 5

NW 1

3 0

0 0

0 4

NNW 0

4 5

2 0

0 11 Total 28 122 68 27 1

0 246 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 7

Number of Valid Hours for this Table:

Total Period All Hours 246 Total Hours for the Period:

2184 Page 3 of 8

Site:

VC Report Printed On: 04/11/2018 16:53 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

04/01/2017 01:00 - 07/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

D Delta Temperature Neutral Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

9 20 16 9

1 0

55 NNE 6

24 14 9

1 0

54 NE 5

9 19 1

0 0

34 ENE 5

3 10 0

0 0

18 E

3 13 6

0 0

0 22 ESE 4

15 4

0 0

0 23 SE 11 28 9

0 0

0 48 SSE 15 55 14 0

0 0

84 S

11 67 43 4

0 0

125 ssw 25 88 24 1

0 0

138 sw 36 60 7

0 0

0 103 wsw 27 32 5

0 0

0 64 w

21 19 6

1 0

0 47 WNW 10 12 1

0 0

0 23 NW 9

8 2

0 0

0 19 NNW 10 o J 5

0 0

0 18 Total 207 456 185 25 2

0 875 Calm Hours not Included above for:

Total Period All Hours Variable Direction Hours for:

Total Period All Hours Invalid Hours for:

Total Period All Hours Number of Valid Hours for this Table:

Total Period All Hours Total Hours for the Period:

2184 Page 4 of 8

Site:

VC Report Printed On: 04/11/2018 16:53 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

04/01/2017 01:00 - 07/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

E Delta Temperature Slightly Stable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

5 o J 0

0 0

0 8

NNE 2

5 0

0 0

0 7

NE 4

2 1

0 0

0 7

ENE 0

2 1

0 0

0 3

E 2

1 1

0 0

0 4

ESE 1

4 1

0 0

0 6

SE 6

22 1

0 0

0 29 SSE 17 41 4

0 0

0 62 S

27 42 n J 0

0 0

72 ssw 39 60 3

0 0

0 102 sw 31 14 1

0 0

0 46 wsw 22 23 0

0 0

0 45 w

24 20 0

0 0

0 44 WNW 9

2 1

0 0

0 12 NW 5

o J 0

0 0

0 8

NNW 5

4 2

0 0

0 11 Total 199 248 19 0

0 0

466 Calm Hours not Included above for:

Total Period All Hours Variable Direction Hours for:

Total Period All Hours Invalid Hours for:

Total Period All Hours Number of Valid Hours for this Table:

Total Period All Hours Total Hours for the Period:

Page 5 of 8

/

Site:

VC Report Printed On: 04/11/2018 16:53 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

04/01/2017 01:00 - 07/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

F Delta Temperature Moderately Stable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

0 1

0 0

1 NNE 1

0 0

0 1

NE 0

0 0

ENE 0

0 0

E 0

0 0

ESE 2

0 0

0 2

SE 5

19 0

0 0

0 24 SSE 16 22 0

0 0

0 38 S

6 8

0 0

14 ssw 13 10 0

0 0

0 23 sw 16 2

0 0

18 wsw 14 8

0 0

22 w

7 4

0 0

11 WNW 6

1 0

0 0

0 7

NW 2

o J 0

0 0

0 5

NNW 0

0 0

Total 88 78 0

0 0

0 166 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 7

Number of Valid Hours for this Table:

Total Period All Hours 166 Total Hours for the Period:

2184 Page 6 of 8

Site:

VC Report Printed On: 04/11/2018 16:53 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

04/0V2017 01:00 - 07/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

G Delta Temperature Extremely Stable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

0 0

0 NNE 0

1 0

0 0

0 1

NE 0

0 0

ENE 0

0 0

E 0

0 0

ESE 1

0 0

0 1

SE 1

1 0

0 0

0 2

SSE 3

1 0

0 0

0 4

S 5

0 0

0 5

ssw 10 0

0 0

10 sw 20 0

0 0

20 wsw 13 0

0 0

13 w

3 0

0 0

J WNW 1

0 0

0 1

NW 1

0 0

0 1

NNW 1

0 0

0 1

Total 59 J

0 0

62 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 7

Number of Valid Hours for this Table:

Total Period All Hours 62 Total Hours for the Period:

2184 Page 7 of 8

Site:

VC Report Printed On: 04/1V2018 16:53 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

04/01/2017 01:00 - 07/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

ALL Delta Temperature Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

24 37 19 14 2

0 96 NNE 15 41 26 22 1

0 105 NE 10 26 38 9

0 0

83 ENE 6

15 25 3

0 0

49 E

5 19 13 0

0 0

37 ESE 9

21 5

0 0

0 35 SE 23 73 21 0

0 0

117 SSE 53 122 27 1

0 0

203 S

50 135 71 4

0 0

260 ssw 88 198 53 3

0 0

342 sw 117 157 23 0

0 0

297 wsw 85 120 23 5

0 0

233 w

66 81 11 5

0 0

163 WNW 30 26 10 0

0 0

66 NW 19 18 5

0 0

0 42 NNW 21 14 12 2

0 0

49 Total 621 1103 382 68 3

0 2177 Calm Hours not Included above for:

Total Period Variable Direction Hours for:

Total Period Invalid Hours for:

Total Period Number of Valid Hours for this Table:

Total Period Total Hours for the Period:

All Hours 0

All Hours

, 7 All Hours 2177 2184 Page 8 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

07/01/2017 01:00 - 10/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

A Delta Temperature Extremely Unstable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

11 10 0

2 0

0 23 NNE 2

7 4

0 3

2 18 NE 1

12 7

9 0

0 29 ENE 0

5 6

2 0

0 13 E

0 1

2 0

0 0

J ESE 0

0 1

0 0

0 1

SE 0

0 0

SSE 0

0 0

S 0

0 0

2 0

0 2

ssw 0

2 2

0 0

0 4

sw 0

31 9

0 0

0 40 wsw 4

32 3

0 0

0 39 w

5 8

0 0

13 WNW o

D 5

0 0

8 NW 0

2 1

0 0

0 3

NNW 10 11

'"> J 0

0 0

24 Total 36 126 38 15 3

2 220 Calm Hours not Included above for:

Total Period Variable Direction Hours for:

Total Period Invalid Hours for:

Total Period Number of Valid Hours for this Table:

Total Period Total Hours for the Period:

All Hours All Hours All Hours All Hours 0

0 0

220 2208 Page 1 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

07/01/2017 01:00 - 10/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

B Delta Temperature Moderately Unstable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

6 11 3

2 1

0 23 NNE 4

15 8

4 0

0 31 NE 5

6 11 20 0

0 42 ENE 0

7 5

1 0

0 13 E

0 4

3 0

0 0

7 ESE 0

0 0

SE 1

0 1

0 0

0 2

SSE 0

0 0

S 0

1 1

0 0

0 2

ssw 2

7 5

0 0

0 14 sw 0

36 2

0 0

0 38 wsw 6

17 0

0 0

0 23 w

3 7

0 0

10 WNW 3

4 0

0 0

0 7

NW o J 1

0 0

4 NNW 4

5 2

0 0

0 11 Total 37 121 41 27 1

0 227 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 0

Number of Valid Hours for this Table:

Total Period All Hours 227 Total Hours for the Period:

2208 Page 2 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

07/01/2017 01:00 - 10/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

C Delta Temperature Slightly Unstable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

9 14 4

9 1

0 37 NNE 6

10 12 16 2

0 46 NE 2

10 15 19 4

2 52 ENE 0

3 8

0 0

0 11 E

0 4

2 0

0 0

6 ESE 1

1 2

0 0

0 4

SE 0

0 0

0 3

SSE 0

3 4

0 0

0 7

S 2

7 6

2 0

0 17 ssw 0

9 8

0 0

0 17 sw 6

19 0

0 0

0 25 wsw 7

18 1

0 0

0 26 w

6 3

0 0

9 WNW 8

1 0

0 0

0 9

NW 4

6 0

0 0

0 10 NNW 7

5 n J 0

0 0

15 Total 58 113 68 46 7

2 294 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 0

Number of Valid Hours for this Table:

Total Period All Hours 294 Total Hours for the Period:

2208 Page 3 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

07/01/2017 01:00 - 10/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

D Delta Temperature Neutral Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

1 28 15 5

0 0

49 NNE 9

25 28 14 1

0 77 NE 3

19 54 11 0

5 92 ENE 3

26 27 1

3 4

64 E

3 22 13 1

0 0

39 ESE 2

14 2

0 0

0 18 SE 4

22 0

0 0

0 26 SSE 9

36 5

0 0

0 50 S

14 37 8

1 0

0 60 ssw 17 82 8

0 0

0 107 sw 38 45 0

0 0

0 83 wsw 28 22 2

0 0

0 52 w

13 9

0 0

22 WNW 11 4

0 0

15 NW 7

9 0

0 0

0 16 NNW 4

9 4

0 0

0 17 Total 166 409 166 33 4

9 787 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 0

Number of Valid Hours for this Table:

Total Period All Hours 787 Total Hours for the Period:

2208 Page 4 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period AH Hours Period of Record =

07/01/2017 01:00 - 10/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

E Delta Temperature Slightly Stable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

7 2

1 0

0 0

10 NNE 5

4 0

0 0

0 9

NE 2

1 1

0 0

0 4

ENE 3

-> 0 1

0 0

0 7

E 6

10 2

0 0

0 18 ESE 1

-> 3 0

0 0

0 4

SE 13 31 0

0 0

0 44 SSE 25 23 0

0 0

0 48 S

27 13 1

0 0

0 41 ssw 46 36 1

0 0

0 83 sw 65 14 0

0 0

0 79 wsw 42 4

0 0

46 w

20 2

0 0

22 WNW 17 4

0 0

21 NW 11 5

1 0

0 0

17 NNW 2

7 2

0 0

0 11 Total 292 162 10 0

0 0

464 Calm Hours not Included above for:

Total Period All Hours Variable Direction Hours for:

Total Period All Hours Invalid Hours for:

Total Period All Hours Number of Valid Hours for this Table:

Total Period All Hours Total Hours for the Period:

Page 5 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Period of Record =

Elevation:

Speed:

Total Period 07/01/2017 01:00 - 10/01/2017 00:00 SP10T1 Direction:

DR10T1 Lapse:

DT61T1 All Hours Stability Class:

Delta Temperature Moderately Stable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

4 2

0 0

6 NNE 0

0 0

NE 0

0 0

ENE 1

0 0

0 1

E 0

0 0

ESE 1

0 0

0 1

SE 1

3 0

0 0

0 4

SSE 16 0

0 0

16 S

11 1

0 0

12 ssw 10 3

0 0

13 sw 15 2

0 0

17 wsw 20 0

0 0

20 w

19 0

0 0

19 WNW 22 0

0 0

22 NW 6

0 0

0 6

NNW 2

1 0

0 0

0 3

Total 128 12 0

0 0

0 140 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 0

Number of Valid Hours for this Table:

Total Period All Hours 140 Total Hours for the Period:

2208 Page 6 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

07/01/2017 01:00 - 10/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

G Delta Temperature Extremely Stable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

0 0

0 NNE 0

0 0

NE 0

0 0

ENE 0

0 0

E 0

0 0

ESE 0

0 0

SE 1

0 0

0 1

SSE 2

2 0

0 0

0 4

S 3

1 0

0 0

0 4

ssw 7

0 0

0 7

sw 18 0

0 0

18 wsw 15 1

0 0

16 w

14 1

0 0

15 WNW 10 0

0 0

10 NW 0

0 1

0 0

0 1

NNW 0

0 0

Total 70 5

1 0

0 0

76 Calm Hours not Included above for:

Variable Direction Hours for:

Invalid Hours for:

Number of Valid Hours for this Table:

Total Hours for the Period:

Total Period All Hours 0

Total Period All Hours 76 2208 Page 7 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

07/01/2017 01:00- 10/01/2017 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

ALL Delta Temperature Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

38 67 23 18 2

0 148 NNE 26 61 52 34 6

2 181 NE 13 48 88 59 4

7 219 ENE 7

44 47 4

o J 4

109 E

9 41 22 1

0 0

73 ESE 5

18 5

0 0

0 28 SE 20 56 4

0 0

0 80 SSE 52 64 9

0 0

0 125 S

57 60 16 5

0 0

138 ssw 82 139 24 0

0 0

245 sw 142 147 11 0

0 0

300 wsw 122 94 6

0 0

0 222 w

80 30 0

0 0

0 110 WNW 74 18 0

0 0

0 92 NW 31 23 3

0 0

0 57 NNW 29 38 14 0

0 0

81 Total 787 948 324 121 15 13 2208 Calm Hours not Included above for:

Variable Direction Hours for:

Invalid Hours for:

Number of Valid Hours for this Table:

Total Hours for the Period:

Total Period Total Period Total Period Total Period All Hours All Hours All Hours All Hours 0

0 0

2208 2208 Page 8 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

10/01/2017 01:00 - 01/01/2018 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

A Delta Temperature Extremely Unstable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

0 4

0 0

4 NNE 0

2 1

1 0

0 4

NE 0

6 15 5

0 0

26 ENE 0

3 4

0 0

0 7

E 0

0 0

ESE 0

0 0

SE 0

0 0

SSE 0

0 0

S 0

0 0

ssw 0

0 1

0 0

0 1

sw 0

o J 0

0 0

0 3

wsw 0

11 1

0 0

0 12 w

0 8

0 0

8 WNW 0

4 0

0 0

0 4

NW 2

2 4

0 0

0 8

NNW 1

2 0

0 0

0 J

Total 3

45 26 6

0 0

80 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 5

Number of Valid Hours for this Table:

Total Period All Hours 80 Total Hours for the Period:

2208 Page 1 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

10/01/2017 01:00 - 01/01/2018 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

B Delta Temperature Moderately Unstable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

7 1

0 1

0 0

9 NNE 0

2 6

7 1

0 16 NE 0

7 18 11 0

0 36 ENE 0

6 6

2 0

0 14 E

0 3

2 0

0 0

5 ESE 0

0 0

SE 0

0 0

SSE 0

0 1

0 0

0 1

S 0

0 2

0 0

0 2

ssw 0

3 7

0 0

0 10 sw 2

17 4

0 0

0 23 wsw 2

11 2

0 0

0 15 w

2 3

1 0

0 0

6 WNW 2

4 1

0 0

0 7

NW 3

1 1

0 0

0 5

NNW 6

6 1

0 0

0 13 Total 24 64 52 21 1

0 162 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 5

Number of Valid Hours for this Table:

Total Period All Hours 162 Total Hours for the Period:

2208 Page 2 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Period of Record =

Elevation:

Speed:

Total Period 10/01/2017 01:00- 01/01/2018 00:00 SP10T1 Direction:

DR10T1 Lapse:

DT61T1 All Hours Stability Class:

C Delta Temperature Slightly Unstable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

4 9

6 2

1 0

22 NNE 5

14 10 22 1

0 52 NE 1

5 42 17 0

0 65 ENE 0

2 8

o J

0 0

13 E

0 6

2 0

0 0

8 ESE 0

1 2

0 0

0 3

SE 0

0 0

SSE 0

0 1

1 0

0 2

S 0

2 4

0 0

0 6

SSW 0

16 2

0 0

0 18 SW 7

14 1

0 0

0 22 wsw 3

11 0

0 0

0 14 w

4 4

0 0

8 WNW 3

2 2

0 0

0 7

NW 3

5 1

0 0

0 9

NNW 4

7 0

1 0

0 12 Total 34 98 81 46 2

0 261 Calm Hours not Included above for:

Variable Direction Hours for:

Invalid Hours for:

Number of Valid Hours for this Table:

Total Hours for the Period:

Total Period Total Period Total Period Total Period All Hours All Hours All Hours All Hours 0

0 5

261 2208 Page 3 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

10/01/2017 01:00 - 01/01/2018 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

D Delta Temperature Neutral Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

16 17 6

0 0

0 39 NNE 10 21 38 14 1

0 84 NE 7

36 65 9

0 0

117 ENE 4

40 46 6

0 0

96 E

3 44 12 1

0 0

60 ESE 5

24 3

0 0

0 32 SE 4

10 11 0

0 0

25 SSE 13 19 11 3

0 0

46 S

19 15 5

1 0

0 40 ssw 21 29 10 4

0 0

64 sw 15 23 8

0 0

0 46 wsw 23 27 3

0 0

0 53 w

24 23 6

0 0

0 53 WNW 19 14 3

0 0

0 36 NW 9

17 5

0 0

0 31 NNW 7

6 5

1 0

0 19 Total 199 365 237 39 1

0 841 Calm Hours not Included above for:

Total Period All Hours Variable Direction Hours for:

Total Period All Hours Invalid Hours for:

Total Period All Hours Number of Valid Hours for this Table:

Total Period All Hours Total Hours for the Period:

Page 4 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Period of Record =

Elevation:

Speed:

Total Period 10/01/2017 01:00-01/01/2018 00:00 SP10T1 Direction:

DR10T1 Lapse:

DT61T1 All Hours Stability Class:

Delta Temperature Slightly Stable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

7 6

0 0

13 NNE 3

3 0

0 0

0 6

NE 5

2 0

0 0

0 7

ENE 4

2 4

0 0

0 10 E

4 20 3

0 0

0 27 ESE 9

8 0

0 0

0 17 SE 5

14 0

0 0

0 19 SSE 16 14 0

0 0

0 30 S

19 20 1

0 1

0 41 ssw 21 25 1

0 0

0 47 sw 38 28 2

0 0

0 68 wsw 28 32 0

0 0

0 60 w

25 22 0

0 0

0 47 WNW 22 4

0 0

26 NW 12 2

0 0

14 NNW 6

4 1

0 0

0 11 Total 224 206 12 0

1 0

443 Calm Hours not Included above for:

Variable Direction Hours for:

Invalid Hours for:

Number of Valid Hours for this Table:

Total Hours for the Period:

Total Period Total Period Total Period Total Period All Hours All Hours All Hours All Hours 0

0 5

443 2208 Page 5 of 8

Site:

VC Report Printed On: 04/1V2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

10/01/2017 01:00 - 01/01/2018 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

F Delta Temperature Moderately Stable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

1 1

0 0

2 NNE 6

0 0

0 6

NE 2

0 0

0 2

ENE 0

0 0

E 3

1 0

0 0

0 4

ESE 4

0 0

0 4

SE 0

6 0

0 0

0 6

SSE 17 14 0

0 0

0 31 S

10 4

0 0

14 ssw 19 8

0 0

27 sw 20 3

0 0

23 wsw 17 6

0 0

23 w

10 4

0 0

14 WNW 10 1

0 0

11 NW 0

0 0

NNW 1

1 0

0 0

0 2

Total 120 49 0

0 0

0 169 Calm Hours not Included above for:

Total Period All Hours 0

Variable Direction Hours for:

Total Period All Hours 0

Invalid Hours for:

Total Period All Hours 5

Number of Valid Hours for this Table:

Total Period AH Hours 169 Total Hours for the Period:

2208 Page 6 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

10/01/2017 01:00 - 01/01/2018 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

G Delta Temperature Extremely Stable Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

0 0

0 NNE 1

0 0

0 1

NE 0

0 0

ENE 0

0 0

E 0

0 0

ESE 0

0 0

SE 0

0 0

SSE 7

29 0

0 0

0 36 S

11 6

0 0

17 ssw 30 0

0 0

30 sw 40 1

0 0

41 wsw 50 2

0 0

52 w

38 1

0 0

39 WNW 18 3

0 0

21 NW 6

2 0

0 0

0 8

NNW 2

0 0

0 2

Total 203 44 0

0 0

0 247 Calm Hours not Included above for:

Variable Direction Hours for:

Invalid Hours for:

Number of Valid Hours for this Table:

Total Hours for the Period:

Total Period Total Period Total Period Total Period All Hours All Hours All Hours All Hours 0

0 5

247 2208 Page 7 of 8

Site:

VC Report Printed On: 04/11/2018 16:54 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period All Hours Period of Record =

10/01/2017 01:00-01/01/2018 00:00 Elevation:

Speed:

SP10T1 Direction:

DR10T1 Lapse:

DT61T1 Stability Class:

ALL Delta Temperature Wind Speed (mph)

Wind Direction 0.8-3.9 4.0-7.9 8.0-12.9 13.0-18.9 19.0-23.9

>24.0 Total N

35 38 12 3

1 0

89 NNE 25 42 55 44 3

0 169 NE 15 56 140 42 0

0 253 ENE 8

53 68 11 0

0 140 E

10 74 19 1

0 0

104 ESE 18 33 5

0 0

0 56 SE 9

30 11 0

0 0

50 SSE 53 76 13 4

0 0

146 S

59 47 12 1

1 0

120 ssw 91 81 21 4

0 0

197 sw 122 89 15 0

0 0

226 wsw 123 100 6

0 0

0 229 w

103 65 7

0 0

0 175 WNW 74 32 6

0 0

0 112 NW 35 29 11 0

0 0

75 NNW 27 26 7

2 0

0 62 Total 807 871 408 112 5

0 2203 Calm Hours not Included above for:

Variable Direction Hours for:

Invalid Hours for:

Number of Valid Hours for this Table:

Total Hours for the Period:

Total Period Total Period Total Period Total Period All Hours All Hours All Hours All Hours 0

0 5

2203 2208 Page 8 of 8

A SCANA COMPANY Robert L. Justice General Manager, Nuclear Plant Operations 803.345.4707 April 25, 2018 Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555

Dear Sir / Madam:

Subject:

VIRGIL C. SUMMER NUCLEAR STATION UNIT 1 DOCKET NO. 50-395 OPERATING LICENSE NO. NPF-12 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT Enclosed is the South Carolina Electric & Gas Company Annual Radioactive Effluent Release Report as required by 10CFR50.36a, Section 6.9.1.8 of the Virgil C. Summer Nuclear Station Technical Specifications and Section 1.6.2 of the Offsite Dose Calculation Manual. This submittal covers the period of January 1 through December 31, 2017.

Should there be any questions, please contact Ms. Susan B. Reese at (803) 345-4591.

Very truly yours, SBR/RLJ/rp Enclosures c:

w/o enclosures unless noted J. E. Addison NRC Resident Inspector W. K. Kissam K. T. Ellison J. B. Archie T. D. Riley J. H. Hamilton NSRC G. J. Lindamood Susan Jenkins (w/enclosures)

W. M. Cherry C. S. Logan (ANI), (w/enclosures)

C. Haney RTS (LTD 313)

S. A. Williams File (818.02-1, RR 8350)

K. M. Sutton PRSF (RC-18-0059), (w/enclosures)

V. C. Summer Nuclear Station

P. 0. Box 88

Jenkinsville, South Carolina

29065

F (803) 941-9776

www.sceg.com

SCE&G A SCANA COMPANY ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT VIRGIL C. SUMMER NUCLEAR STATION UNIT 1 FOR THE OPERATING PERIOD JANUARY 1, 2017 - DECEMBER 31, 2017 m

p-i i>>Tr i 11 1

Prepared by:

Michelle Westbury, Specialist Health Physics

Reviewed by: