ML22228A181

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Westinghouse, NRC Semi-Annual Discharge Report January - June 2022
ML22228A181
Person / Time
Site: Westinghouse
Issue date: 08/16/2022
From: Ferguson J
Westinghouse, Westinghouse
To:
Document Control Desk, Office of Nuclear Material Safety and Safeguards
References
LTR-RAC-22-45
Download: ML22228A181 (24)
v • d • e


Text

Page 1 of 2 8 Westinghouse Westinghouse Electric Company LLC Nuclear Fuel Columbia Fuel Site 5807 Bluff Road Hopkins, South Carolina 29067 USA

Document Control. Desk, Director Direct tel: 803-647-1000 Office of Nuclear Material Safety and Safeguards U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 cc: USNRC, Region II Our ref: L TR-RAC-22-45 245 Peachtree Center Ave, NE, Suite 1200 Atlanta, Georgia 30303-1257

Subject:

SNM-1107/70-1151 NRC Semi-Annual Discharge Report August16,2022 January - June 2022

Dear Sir:

The following report fulfills regulatory requirements as listed in 10 CFR 40.65 and 10 CFR 70.59, "Effluent Monitoring Reporting Requirements." For the six-month period of January 1, 2022, through June 30, 2022, the following quantities of radionuclides were released to the unrestricted area by the Westinghouse Electric Company's Columbia, South Carolina Nuclear Fuel Plant:

Total Total Regulatory Discharge emissions Parameter Measured Concentration 6-month 6-month

(µCi) Concentration Limit Gaseous 213.3 Uranium (analyzed as 1.6E-16 µCi/ml* 5 E-14 µCi/ml gross alpha) 1,720 U-234 Liquid 86 U-235 3.5E-08 µCi/ml 3 E-07 µCi/ml Effluent# 292 U-238 4,102 Tc-99 6.SE-08 µCi/ml 6 E- 05 µCi/ml

  • Includes a dispersion factor of 1000 to account for dilution between the release point and the nearest site boundary.
  1. Sum of fractions (SOF) equates to less than 1.0.

As shown above, the effluent releases are within the NRC's regulatory limits designed to protect public health and safety.

Gaseous effluent results were obtained from point source gross alpha analysis of stack gas effluent, and the individual radionuclide activity composition is inferred from the calculated average enrichment (85.21% U-234, 3.32% U-235, and 11.47% U-238). Tc-99 is not reported for gaseous effluents as the quantities of Tc-99 detected during benchmark testing of gaseous emissions were below the thresholds that would necessitate reporting.

Liquid effluent values were obtained by analysis of composite proportional samples prior to discharge to the Congaree River and basing the activity on the calculated average enrichment.

All liquid discharges are pumped through a single discharge line to the Congaree River. Liquid effluent composites were analyzed by alpha spectroscopy, and significant quantities of U-236 were not detected using this method. The total liquid effluent volume released to the Congaree River during the first half of 2022 was 6.05 E+ 10 milliliters (ml).

© 2022 Westinghouse Electric Company LLC All Rights Reserved Page 2 of 2 Our ref: L TR-RAC-22-45 August 16, 2022

Calculated values have been reported for all results, due to variability of minimum detection concentrations (MDC). Negative values are reported as zero.

To meet the requested dosage information outlined in Regulatory Guide 4.16, Section 6.1, L TR EHS-22-39, "2022 Semi-Annual Assessment of Public Dose due to Liquid and Gaseous Effluents" is attached.

Sincerely, Jeffllt~

Manager, Environment, Health and Safety

Attachment:

L TR-EHS-22-39, "2022 Semi-Annual Assessment of Public Dose due to Liquid and Gaseous Effluents" WestinghouseNonProprietaryClass3 Page 1 of 3

Westinghouse Electric Company Nuclear Fuel Columbia Fuel Site 5801 Bluff Rd Hopkins, South Carolina 29061 USA

To: Cynthia Teague, Diana Joyner Date: August 11, 2022

cc: Jeff Ferguson, Patrick Donnelly, Nancy Parr, Anna Miller

From: David Wagoner Your ref:

Ext: 1919 Our ref: LTR-EHS-22-39 Fax: 803.695.4158

Subject:

2022 Semi-Annual Assessment of Public Dose due to Liquid and Gaseous Effluents

Effluents released from plant operations are monitored to determine the quantities of radionuclides discharged into the environment. The cumulative radioactivity released is summarized semi-annually and annually and input into models developed by the NRC and EPA to estimate the potential dose to the public.

The whole body and organ dose via the following pathways is determined in this assessment:

Dose due to Gaseous Effluents by Direct Inhalation The whole body dose was estimated using EPAs COMPLY Code at level 2 complexity.

The organ dose was estimated by calculating the X/Q factor using the results of the COMPLY analysis for stack #1208 (Incinerator Exh), the measured release quantity, and the dose conversion factors from Federal Guidance Report No 11, Limiting Values of Radionuclide Intake and Air concentration Factors for Inhalation, Submersion, and Ingestion (FGR 11).

Dose due to Liquid Effluents by Ingestion of Potable Water Estimated using equations and recommended values in Regulatory Guide 1.109, Doses from Liquid Effluent Pathways (RG 1.109). Dose conversion factors are referenced from FGR 11.

Dose due to Liquid Effluents by Ingestion of Fish Estimated using equations and recommended values in RG 1.109. Dose conversion factors are referenced from FGR 11.

Dose due to Liquid Effluents by Irradiation from Shoreline Deposition Estimated using equations and recommended values in RG 1.109. Dose conversion factors are referenced from Federal Guidance report No 12, External Exposure to Radionuclides in Air, Water, and Soil.

Bounding dose assessments for direct inhalation and for ingestion are performed using conservative assumptions to determine the maximum potential dose to a hypothetical individual member of the public. The inhalation dose is determined for the hypothetical individual standing at the nearest site

© 2022 Westinghouse Electric Company LLC All Rights Reserved WestinghouseNonProprietaryClass3

Page 2 of 3 Our ref: LTR-EHS-22-39 August 11, 2022

boundary (595 meters) for six months. The ingestion dose from liquid effluent and external dose from sediment deposition is determined at the point at which the liquid effluent leaves the diffuser in the Congaree River.

The release rates for gaseous effluent are determined by gross alpha measurements performed on daily air samples, one per stack fo r 42 stacks (Attachment 1). The release rates for liquid effluent are determined by isotopic analysis of composite liquid effluent samples taken monthly (Attachment 3).

Based on these results, the following quantities were released in the 1 st half of calendar year 2022:

213.3 µCi of Uranium in gaseous effluent 2,098 µCi of Uranium in liquid effluent 4,102 µCi of Technetium in liquid effluent

Using these results and the methods previously mentioned the whole body dose, dose to the bone, and dose to the lung were determined for an individual present at the nearest site boundary. Table 1 provides a summary of the results for each pathway. The gaseous and liquid effluents released during the 1st half of 2022 resulted in a potential whole body dose of 0.08 mrem, 0.76 mrem to the lung, and 0.003 mrem to the bone for an individual present at the nearest site boundary. The estimated whole body dose is well below the 12.5 mrem annual dose limit (1/2 of the 25 mrem annual dose limit) and the 0.5 mrem ALARA goal (1/2 of 1 mrem annual ALARA goal) for a member of the public.

Table 1. 2022 Semi-Annual Dose to the Public from Liquid and Gaseous Effluents

Whole Body Dose Organ Dose - Bone Organ Dose - Lung (mrem/6 months) (mrem/6 months) (mrem/6 months)

Gaseous Effluents Direct inhalation* 0.08 2.89E-03 0.76

Liquid Effluents Potable Water 2.53E-05 3.69E-04 -

Aquatic Food (Fish) 1.55E-06 2.12E-05 -

Shoreline Deposition 1.02E-09 - -

Total (mrem/6 months) 0.08 3.28E-03 0.76

  • Assumes 80 % residence time

There were no changes in source material and no release points were added or removed during the 1st half of 2022. The attachments below illustrate the method used to calculate each result listed in Table 1. The annual dose calculation will be completed when the data is available for the entire calendar year.

WestinghouseNonProprietaryClass3

Page 3 of 3 Our ref: LTR-EHS-22-39 August 11, 2022

1st Half 2022 Gaseous Effluent Discharges : Lung/Bone Organ Dose due to Gaseous Effluent : 1st Half 2022 Liquid Effluent Discharges : Whole Body Dose from Liqui d Effluent Pathways - Potable Water : Dose to the Bone Surface fro m Liquid Effluent Pathways - Potable Water : Whole Body Dose from Liqui d Effluent Pathways - Aquatic Foods : Dose to the Bone Surface fro m Liquid Effluent Pathways - Aquatic Foods : Whole Body Dose from Liqui d Effluent Pathways - Shoreline Deposits : 2022 Isotopic Fractions 0: Comply Results

David Wagoner, CHP Review by: Anna Miller Radiation Safety Engineer Manager, RSO EH&S Operations EH&S Operations

Attachment 9 2022 Isotopic Fractions

Based on the plant nominal enrichment for 2022

Nuclide Average Specific Activity Weighted %

wt% Ci/g Activity Activity U-234 0.04 6.220E-03 2.388E-06 85.21 U-235 4.31 2.160E-06 9.307E-08 3.32 U-238 95.66 3.360E-07 3.214E-07 11.47

Total 100.0 2.803E-06 100.00

O:\\Regulatory\\EH&S Operations\\Environment\\Environment 2022\\Liquid effluent 1st half 2022.xlsx Attachment 10 - Comply Results

COMPLY:V1.7. 8/10/20221:19

40 CFRPart61 NationalEmissionStandards forHazardousAirPollutants

REPORTON COMPLIANCEWITH

THECLEANAIRACTLIMITSFORRADIONUCLIDEEMISSIONS

FROMTHECOMPLYCODEV1.7.

Preparedby:

WestinghouseElectricCo.

ColumbiaFuelFabricationFacility 5801BluffRd.Hopkins,SC 29061

DavidWagoner 803.647.1919

Preparedfor:

U.S.EnvironmentalProtectionAgency Officeof RadiationandIndoorAir Washington,DC20460 2022SemiAnnualDosetoPublicduetoGaseousEffluents

SCREENINGLEVEL2

DATAENTERED:

RELEASERATESFORSTACK1.

ReleaseRate Nuclide(curies/SECOND)

U234Y9.320E14 U235Y3.630E15 U238Y1.250E14

RELEASERATESFORSTACK2.

ReleaseRate Nuclide(curies/SECOND)

U234Y1.710E13 U235Y6.650E15 U238Y2.300E14

RELEASERATESFORSTACK3.

ReleaseRate Nuclide(curies/SECOND)

U234Y1.250E12 U235Y4.850E14 U238Y1.680E13

RELEASERATESFORSTACK4.

ReleaseRate Nuclide(curies/SECOND)

U234Y4.070E13 U235Y1.590E14 U238Y5.490E14

RELEASERATESFORSTACK5.

ReleaseRate Nuclide(curies/SECOND)

U234Y2.330E12 U235Y9.090E14 U238Y3.140E13

RELEASERATESFORSTACK6.

ReleaseRate Nuclide(curies/SECOND)

U234Y9.770E13 U235Y3.810E14 U238Y1.320E13

RELEASERATESFORSTACK7.

ReleaseRate Nuclide(curies/SECOND)

U234Y8.410E13 U235Y3.280E14 U238Y1.130E13

RELEASERATESFORSTACK8.

ReleaseRate Nuclide(curies/SECOND)

U234Y4.060E12 U235Y1.580E13 U238Y5.460E13

RELEASERATESFORSTACK9.

ReleaseRate Nuclide(curies/SECOND)

U234Y9.200E13 U235Y3.580E14 U238Y1.240E13

RELEASERATESFORSTACK10.

ReleaseRate Nuclide(curies/SECOND)

U234Y3.160E13 U235Y1.230E14 U238Y4.260E14

RELEASERATESFORSTACK11.

ReleaseRate Nuclide(curies/SECOND)

U234Y1.930E13 U235Y7.540E15 U238Y2.600E14

SITEDATAFORSTACK1.

Releaseheight9meters.

Buildingheight9meters.

Thesourceandreceptorarenotonthesamebuilding.

Distancefromthesourcetothereceptoris595meters.

Buildingwidth137meters.

SITEDATAFORSTACK2.

Releaseheight10meters.

Buildingheight9meters.

Thesourceandreceptorarenotonthesamebuilding.

Distancefromthesourcetothereceptoris595meters.

Buildingwidth137meters.

SITEDATAFORSTACK3.

Releaseheight11meters.

Buildingheight9meters.

Thesourceandreceptorarenotonthesamebuilding.

Distancefromthesourcetothereceptoris595meters.

Buildingwidth137meters.

SITEDATAFORSTACK4.

Releaseheight12meters.

Buildingheight9meters.

Thesourceandreceptorarenotonthesamebuilding.

Distancefromthesourcetothereceptoris595meters.

Buildingwidth137meters.

SITEDATAFORSTACK5.

Releaseheight13meters.

Buildingheight9meters.

Thesourceandreceptorarenotonthesamebuilding.

Distancefromthesourcetothereceptoris595meters.

Buildingwidth137meters.

SITEDATAFORSTACK6.

Releaseheight14meters.

Buildingheight9meters.

Thesourceandreceptorarenotonthesamebuilding.

Distancefromthesourcetothereceptoris595meters.

Buildingwidth137meters.

SITEDATAFORSTACK7.

Releaseheight15meters.

Buildingheight9meters.

Thesourceandreceptorarenotonthesamebuilding.

Distancefromthesourcetothereceptoris595meters.

Buildingwidth137meters.

SITEDATAFORSTACK8.

Releaseheight16meters.

Buildingheight9meters.

Thesourceandreceptorarenotonthesamebuilding.

Distancefromthesourcetothereceptoris595meters.

Buildingwidth137meters.

SITEDATAFORSTACK9.

Releaseheight17meters.

Buildingheight9meters.

Thesourceandreceptorarenotonthesamebuilding.

Distancefromthesourcetothereceptoris595meters.

Buildingwidth137meters.

SITEDATAFORSTACK10.

Releaseheight19meters.

Buildingheight9meters.

Thesourceandreceptorarenotonthesamebuilding.

Distancefromthesourcetothereceptoris595meters.

Buildingwidth137meters.

SITEDATAFORSTACK11.

Releaseheight20meters.

Buildingheight9meters.

Thesourceandreceptorarenotonthesamebuilding.

Distancefromthesourcetothereceptoris595meters.

Buildingwidth137meters.

Defaultmeanwindspeedused(2.0m/sec).

NOTES:

Inputparametersoutsidethe"normal"range:

Building(width)isunusuallyWIDE.

ReceptorisunusuallyFAR.

RESULTS:

Effectivedoseequivalent:0.2mrem/yr.

      • Complyatlevel2.

ThisfacilityisinCOMPLIANCE.

ItmayormaynotbeEXEMPTfromreportingtotheEPA.

YoumaycontactyourregionalEPAofficeformoreinformation.

                    • ENDOFCOMPLIANCEREPORT**********

COMPLY:V1.7. 8/10/20221:09

40CFRPart61 NationalEmissionStandards forHazardousAirPollutants

REPORTONCOMPLIANCEWITH

THECLEANAIRACTLIMITSFORRADIONUCLIDEEMISSIONS

FROMTHECOMPLYCODEV1.7.

Preparedby:

WestinghouseElectricCo.

ColumbiaFuelFabricationFacility 5801BluffRd.Hopkins,SC29061

DavidWagoner 803.647.1919

Preparedfor:

U.S.EnvironmentalProtectionAgency OfficeofRadiationandIndoorAir Washington,DC20460

IncineratorExh

SCREENINGLEVEL2

DATAENTERED:

ReleaseRate Nuclide(curies/SECOND)

U234Y3.230E12 U235Y1.260E13 U238Y4.340E13

Releaseheight16meters.

Buildingheight9meters.

Thesourceandreceptorarenotonthesamebuilding.

Distancefromthesourcetothereceptoris595meters.

Buildingwidth137meters.

Defaultmeanwindspeedused(2.0m/sec).

NOTES:

Inputparametersoutsidethe"normal"range:

Building(width)isunusuallyWIDE.

ReceptorisunusuallyFAR.

RESULTS:

Effectivedoseequivalent:6.4E02mrem/yr.

      • Complyatlevel2.

ThisfacilityisinCOMPLIANCE.

ItmayormaynotbeEXEMPTfromreportingtotheEPA.

YoumaycontactyourregionalEPAofficeformoreinformation.

                    • ENDOFCOMPLIANCEREPORT**********
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