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HomeMy WebLinkAboutDRC-2022-020315 - 0901a068810d3fecPage 1 of 6 UTAH DIVISION OF RADIATION CONTROL RML # UT1900479 ENERGY FUELS WHITE MESA MILL INSPECTION MODULE EM-01 SEMI-ANNUAL EFFLUENT MONITORING REPORT REPORTING PERIOD: January 1, 2022 through June 30, 2022 References: Utah Administrative Code R313-24-4; 10CFR40.65; Radioactive Materials License UT1900479; 10CFR20 Table II of Appendix B; NRC Regulatory Guide 4.14; 2007 License Renewal Application Inspector: Heather Mickelson Date: August 25, 2022 10CFR40.65(a)(1) requires the licensee to submit a report within 60 days after January 1 and July 1 of each year. The report must specify the quantity of each of the principal radionuclides released to unrestricted areas in liquid and in gaseous effluents during the previous six months of operation. 1. Did the licensee submit the report within 60 days of the end of the reporting period i.e., January 1st or July 1st? (10CFR40.65(a)(1)) Yes No Comments: The Semi-Annual Effluent Monitoring Report for the Period January 2 through June 39, 2922 was dated August 15, 2022 and was received on August 19, 2922. 2. Were the stack samples analyzed for U-nat, 230Th, 226Ra and 210Pb? (NRC Reg Guide 4.14) Yes No N/A Comments: Stack sampling did not occur as none of the stacks were operational from January 1 to June 30, 2022. 3. Were site boundary effluent air samples analyzed for U-nat, 230Th, 226Ra and 210Pb? (NRC Reg Guide 4.14) Yes No 10CFR20 Appendix B Table 2 first paragraph states “The columns in Table 2 of this appendix captioned "Effluents," "Air," and "Water," are applicable to the assessment and control of dose to the public, particularly in the implementation of the provisions of § 20.1302. The concentration values given in Columns 1 and 2 of Table 2 are equivalent to the radionuclide concentrations which, if inhaled or Page 2 of 6 ingested continuously over the course of a year, would produce a total effective dose equivalent of 0.05 rem (50 millirem or 0.5 millisieverts).” Comments: Sampling results were below the ECL for all monitoring locations for the last four quarters. See the attached Particulate, Radon, and Gamma Screening analysis for a summary of quarterly and annual data and a calculated yearly dose at each high-volume air monitoring station. 4. Were the site boundary effluent air sample results within applicable limits for U-nat, 230Th, 226Ra and 210Pb? (10CFR20 Table II of Appendix B) Isotope ECL (µCi/ml in air)* U-nat 9.0E-14 230Th 2.0E-14 226Ra 9.3E-13 210Pb 6.0E-13 *10CFR20 Table II of Appendix B, ECL’s Yes No Comments: See the attached Particulate, Radon, and Gamma Screening analysis for measured site boundary effluent air sample results for U-nat, 230Th, 226Ra and 210Pb. 5. Did the results of the effluent monitoring for this reporting period achieve the site’s ALARA objective of 25% of the ECL’s? (2007 License Renewal Application Vol. 1 Section 6.5; 10CFR20 Table II of Appendix B) Isotope ECL (µCi/ml in air)* 25 % ECL (µCi/ml in air) U-nat 9.0E-14 2.25E-14 230Th 2.0E-14 5.15E-1 226Ra 9.3E-13 2.33E-13 210Pb 6.0E-13 1.50E-13 *10CFR20 Table II of Appendix B, ECL’s Yes No Comments: See the attached Particulate, Radon, and Gamma Screening analysis for measured site boundary effluent air sample results. Page 3 of 6 6. Were gamma measurements (minus background) collected at each monitoring station? Yes No Comments: See the attached Particulate, Radon, and Gamma Screening analysis for gamma measurements (minus background)? 7. Were soil samples analyzed for U-nat, 226Ra and 210Pb? (NRC Reg Guide 4.14) Yes No N/A Comments: Soil samples will be collected during the third quarter of 2022 and will be presented and discussed during the July to December 2022 Semi-Annual Effluent Report. 8. Were vegetation samples analyzed for 226Ra and 210Pb? (NRC Reg Guide 4.14) Yes No Comments: Vegetation samples were collected and sampled for 226Ra and 210Pb. 9. Were radon samples (minus background) taken at sample stations BHV-1, BHV-2, BHV-4, BHV-5, BHV-6, BHV-7, and BHV-8? (NRC Reg Guide 4.14) Yes No Comments: Yes, samples were collected and analyzed for radon. See the attached Particulate, Radon, and Gamma Screening analysis for measured radon concentrations (minus background)? The comparison of the dose associated with the measured radon concentration and the limit is difficult. The ECLs and threshold limit ECLs in 10 CFR 20 Appendix B Table assume either no daughters present or 100 % ingrowth and result in a maximum exposure of 50 mrems/year. The calculated ECLs account for partial ingrowth using methodology EPA 520/1-88-009 p 2-20 and result in a maximum exposure of 25 mrem/year. Finally, the regulatory limit is 100 mrem/year. 10. Were radon samples analyzed for 222Rn? (NRC Reg Guide 4.14) Yes No Comments: Yes, 222Rn samples were collected and analyzed for. See the attached Particulate, Radon, and Gamma Screening analysis for measured radon concentrations (minus background)? Page 4 of 6 11. Were the 222Rn results within the calculated ECL’s for the calculated ECL’s for the yearly average results for the past four quarters Yes No Comments: See the attached Particulate, Radon, and Gamma Screening analysis for , the 222Rn results and analysis. License Condition 11.2.D requires the licensee to utilize lower limits of detection in accordance with Section 5 of the NRC Regulatory Guide 4.14, as amended, for analysis of effluent and environmental samples. 12. Were lower limits of detection (LLD) for analysis of stack effluent samples 10% or less of the limits found in 10CFR20 Table II of Appendix B for U-nat, 230Th, 226Ra and 210Pb? (NRC Reg Guide 4.14) Isotope ECL (µCi/ml)* 10 % ECL (µCi/ml) U-nat 9.0E-14 2.25E-14 230Th 2.0E-14 5.15E-1 226Ra 9.3E-13 2.33E-13 210Pb 6.0E-13 1.50E-13 *10CFR20 Table II of Appendix B, ECL’s Yes No N/A Comments: Stack sampling did not occur as none of the stacks were operational from January 1 to June 30, 2022. 13. Were lower limits of detection (LLD) for analysis of site boundary air effluents within the limits listed in NRC Regulatory Guide 4.14 Section 5 for U-nat, 230Th, 226Ra and 210Pb? (NRC Reg Guide 4.14) Isotope LLD (µCi/ml in air)* U-nat 1.0E-16 230Th 1.0E-16 226Ra 1.0E-16 210Pb 2.0E-15 *NRC Regulatory Guide 4.14 Section 5 LLD values (in air) Yes No Comments: None Page 5 of 6 14. Were lower limits of detection (LLD) for analysis of site boundary soil samples within the limits listed in NRC Regulatory Guide 4.14 Section 5 for U-nat, 226Ra and 210Pb? Isotope LLD (µCi/g in soil)* U-nat 2.0E-7 226Ra 2.0E-7 210Pb 2.0E-7 *NRC Regulatory Guide 4.14 Section 5 LLD values (in soil) Yes No N/A Comments: None 15. Were lower limits of detection (LLD) for analysis of site boundary vegetation samples within the limits listed in NRC Regulatory Guide 4.14 Section 5 for 226Ra and 210Pb? Isotope LLD (µCi/kg in vegetation)* U-nat 2.0E-7 226Ra 5.0E-8 210Pb 1.0E-6 *NRC Regulatory Guide 4.14 Section 5 LLD values (in vegetation) Yes No Comments: The LLDs in the data package are referred to as the reporting limit. 16. Were lower limits of detection (LLD) for analysis of radon samples within the limits listed in NRC Regulatory Guide 4.14 Section 5 for 222Rn? Isotope LLD (µCi/ml)* 222Rn 2.0E-10 (0.2pCi/L) *NRC Regulatory Guide 4.14 Section 5 LLD values for radon Yes No Comments: None Page 6 of 6 White Mesa Environmental Protection Manual Section 1.4, STACK EMMISIONS MONITORING PROCEDURES, sub-section 1.0, INTRODUCTION, states, “These sampling methods are also consistent with guidance contained in the U.S. Nuclear Regulatory Commission’s Regulatory Guide 4.14, “Radiological Effluent and Environmental Monitoring at Uranium Mills.” 17. Were the yellowcake dryer and packaging stacks sampled in accordance with Regulatory Guide 4.14 Section 2.1.1? Isotope Sampling Frequency U-nat Quarterly 230Th Semi-Annual 226Ra Semi-Annual 210Pb Semi-Annual Yes No N/A Comments: Stack sampling did not occur as none of the stacks were operational from January 1 to June 30, 2022. 18. Did the results of the effluent monitoring for this reporting period achieve the site’s ALARA objective of 25% of the ECL’s? (2007 License Renewal Application Vol. 1 Section 6.5; 10CFR20 Table II of Appendix B) Isotope ECL* (µCi/ml in air) ALARA Goal (µCi/ml in air) U-nat 9.0E-14 2.25E-14 230Th 2.0E-14 5.15E-15 226Ra 9.3E-13 2.33E-13 210Pb 6.0E-13 1.50E-13 *10CFR20 Table II of Appendix B, ECL’s: Yes No Comments: See the attached Particulate, Radon, and Gamma Screening analysis for , the estimated dose. Prepared By: Heather Mickelson Date Reviewed By: Phil Goble Date 8/25/22 08/25/2022 Year Ending 30-Jun-22 Constituent Location 30-Sep-21 31-Dec-21 31-Mar-22 30-Jun-22 Annual ECL Below ECL? mrem/yr BHV-1 7.0E-17 3.0E-17 2.0E-17 1.0E-16 5.5E-17 9E-14 Yes 0.03 BHV-2 3.0E-17 2.0E-17 1.0E-17 1.0E-16 4.0E-17 9E-14 Yes 0.02 BHV-4 5.0E-17 6.0E-17 6.0E-17 1.0E-16 6.8E-17 9E-14 Yes 0.04 BHV-5 2.0E-16 2.0E-16 1.0E-16 2.0E-16 1.8E-16 9E-14 Yes 0.10 BHV-6 1.0E-16 2.0E-16 5.0E-17 1.0E-16 1.1E-16 9E-14 Yes 0.06 BHV-7 3.0E-16 9.0E-17 4.0E-17 1.0E-16 1.3E-16 9E-14 Yes 0.07 BHV-8 9.0E-17 3.0E-17 6.0E-17 1.0E-16 7.0E-17 9E-14 Yes 0.04 BHV-1 7.0E-17 2.0E-17 2.0E-17 3.0E-17 3.5E-17 2E-14 Yes 0.09 BHV-2 3.0E-17 2.0E-17 4.0E-17 2.0E-17 2.8E-17 2E-14 Yes 0.07 BHV-4 7.0E-17 1.0E-16 4.0E-17 1.0E-15 3.0E-16 2E-14 Yes 0.76 BHV-5 2.0E-16 1.0E-16 9.0E-17 1.0E-16 1.2E-16 2E-14 Yes 0.31 BHV-6 9.0E-17 4.0E-17 2.0E-17 6.0E-17 5.3E-17 2E-14 Yes 0.13 BHV-7 2.0E-16 6.0E-17 3.0E-17 8.0E-17 9.3E-17 2E-14 Yes 0.23 BHV-8 1.0E-16 3.0E-17 8.0E-17 4.0E-17 6.3E-17 2E-14 Yes 0.16 BHV-1 2.0E-16 4.0E-17 4.0E-17 5.0E-17 8.3E-17 9E-13 Yes 0.00 BHV-2 1.0E-16 2.0E-17 5.0E-17 3.0E-17 5.0E-17 9E-13 Yes 0.00 BHV-4 2.0E-16 3.0E-16 8.0E-17 2.0E-16 2.0E-16 9E-13 Yes 0.01 BHV-5 6.0E-16 2.0E-16 9.0E-17 4.0E-16 3.2E-16 9E-13 Yes 0.02 BHV-6 2.0E-16 4.0E-17 4.0E-17 7.0E-17 8.8E-17 9E-13 Yes 0.00 BHV-7 8.0E-16 1.0E-16 4.0E-17 1.0E-16 2.6E-16 9E-13 Yes 0.01 BHV-8 5.0E-16 6.0E-17 2.0E-16 1.0E-16 2.2E-16 9E-13 Yes 0.01 BHV-1 1.0E-14 1.0E-14 1.0E-14 1.0E-14 1.0E-14 6E-13 Yes 0.83 BHV-2 1.0E-14 1.0E-14 1.0E-14 1.0E-14 1.0E-14 6E-13 Yes 0.83 BHV-4 1.0E-14 2.0E-14 2.0E-14 2.0E-14 1.8E-14 6E-13 Yes 1.46 BHV-5 1.0E-14 2.0E-14 2.0E-14 2.0E-14 1.8E-14 6E-13 Yes 1.46 BHV-6 1.0E-14 2.0E-14 2.0E-14 1.0E-14 1.5E-14 6E-13 Yes 1.25 BHV-7 1.0E-14 2.0E-14 2.0E-14 2.0E-14 1.8E-14 6E-13 Yes 1.46 BHV-8 1.0E-14 2.0E-14 2.0E-14 1.0E-14 1.5E-14 6E-13 Yes 1.25 BHV-1 1.0E-17 5.0E-18 3.0E-18 3.0E-18 5.3E-18 4E-15 Yes 0.07 BHV-2 1.0E-17 4.0E-18 5.0E-18 6.0E-18 6.3E-18 4E-15 Yes 0.08 BHV-4 8.0E-18 7.0E-18 5.0E-18 3.0E-18 5.8E-18 4E-15 Yes 0.07 BHV-5 1.0E-17 9.0E-18 7.0E-18 4.0E-18 7.5E-18 4E-15 Yes 0.09 BHV-6 1.0E-17 8.0E-18 3.0E-18 5.0E-18 6.5E-18 4E-15 Yes 0.08 BHV-7 1.0E-17 6.0E-18 6.0E-18 5.0E-18 6.8E-18 4E-15 Yes 0.08 BHV-8 1.0E-17 5.0E-18 5.0E-18 3.0E-18 5.8E-18 4E-15 Yes 0.07 BHV-1 3.90 1.10 4.80 5.00 14.80 100 Yes 14.80 BHV-2 2.30 2.30 1.30 5.10 11.00 100 Yes 11.00 BHV-4 0.00 0.70 0.00 3.80 4.50 100 Yes 4.50 BHV-5 2.40 3.70 6.30 5.10 17.50 100 Yes 17.50 BHV-6 0.00 0.00 0.80 1.00 1.80 100 Yes 1.80 BHV-7 0.70 1.00 0.00 0.90 2.60 100 Yes 2.60 BHV-8 0.00 3.90 2.50 0.00 6.40 100 Yes 6.40 BHV-1 0.08 0.11 0.29 0.08 0.14 0.07 No 0.04 BHV-2 0.00 0.14 0.02 0.05 0.05 0.34 Yes 0.04 BHV-4 0.11 0.33 0.05 0.19 0.17 0.50 Yes 0.05 BHV-5 0.22 0.59 0.51 0.40 0.43 1.43 Yes 0.04 BHV-6 0.19 0.19 0.16 0.24 0.20 0.83 Yes 0.04 BHV-7 0.22 0.06 0.11 0.19 0.15 1.12 Yes 0.04 BHV-8 0.19 0.17 0.16 0.22 0.19 0.71 Yes 6.51 Location Dose ALARA Goal ALARA Goal Met? Exposure Limit Compliant? BHV-1 15.86 25 Yes 100 Yes BHV-2 12.04 25 Yes 100 Yes BHV-4 6.88 25 Yes 100 Yes BHV-5 19.51 25 Yes 100 Yes BHV-6 3.37 25 Yes 100 Yes BHV-7 4.50 25 Yes 100 Yes BHV-8 14.44 25 Yes 100 Yes Notes: Regulatory limit is 100 mrem/yr. Energy Fuels' ALARA goal is to maintain exposures below 25 mrem/yr ECLs in this analysis are based on 50 mrem/yr except radon which uses 25 mrem/yr. Table 2 ECLs are based on 50 mrem/yr. ECLs for radon were calculated using distance and wind speed from assumed stack source to BHV stations. Calculated ECLs provide inclusion of ingrowth of daughters. Annual values reflect averaging dose rates for the four quarters, except for gamma, which is the sum of four quarterly values. Reviewed by: Heather Mickelson Date: Manager review: Phil Goble Date: Estimated Dose and Comparison to Screening Values (mrem/yr) PARTICULATE, RADON AND GAMMA SCREENING Ra d i o a c t i v e P a r t i c u l a t e s γ (mrem) Dir e c t R a d i a t i o n UNAT (µCi/mL) 230Th (µCi/mL) 226Ra (µCi/mL) Quarter Ending Ra d o n - 2 2 2 222Rn (pCi/L) Analysis of Annual Dose 210Pb (µCi/mL) 232Th (µCi/mL) Su m m a r y 8/25/22 08/25/2022