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HomeMy WebLinkAboutDRC-2024-004808~ --------ENERGYSOLUTIONs -------- March 5, 2024 Mr. Doug Hansen, Director Division of Waste Management and Radiation Control P.O. Box 144880 Salt Lake City, UT 84114-4880 CD-2024-043 Re: Groundwater Quality Discharge Permit (GWQDP) No. UGW450005- Amendment to the Semi-Annual Best Available Technology (BAT) Monitoring Report for July 1 to December 31, 2023 Dear Mr. Hansen: On February 27, 2024 the Second Semi-Annual BAT Monitoring Report for 2023 was submitted (CD-2024-039) to DWMRC. It was brough to our attention that there was an error in section 3.6 Out-of-Service Facilities, the Rail Digging Facility was not updated to indicate it had been returned back to in-service. This letter is to provide the updated Second Semi-Annual BAT Monitoring Report for 2023 with the statement for the amendment below. 3.6 Out-of-Service Facilities: Rail Digging Facility-The Rail Digging Facility was taken out of service on April 1, 2021. Notification was provided to the Division of Waste Management and Radiation Control (DWMRC) on March 26, 2021 (submittal CD-2021-047). Following the inspection of the surface integrity and repair of identified defects, the Rail Digging Facility was placed back into service on October 2, 2023. Notification was provided to the DWMRC on September 25, 2023 (CD-2024-187). Please contact me at (385)418-3044 with any questions regarding this notification. Sincerely, Jon Anderson Environmental Compliance Manager cc: Charles Bishop (DWMRC) Brandon Davis (DWMRC) Bailey Anderson (DWMRC) 299 South Main Street, Suite 1700 • Salt Lake City, Utah 84111 (801) 649-2000 • Fax: (801) 880-2879 • www.energysolutions.com ~ ENERGYSOLUTIONS Mr. Doug Hansen March 5, 2023 CD-2024-043 Page 2 of2 I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submittingfalse information, including the possibility affine and imprisonment for knowing violations. ENERGYSOLUTIONS, LLC BAT MONITORING REPORT 2ND SEMI-ANNUAL JULY -DECEMBER 2023 (SECTION 3.6 OUT-OF-SERVICE FACILITIES AMENDED ON MARCH 5, 2023) 1.0 INTRODUCTION EnergySolutions, LLC, (EnergySolutions) was granted a Groundwater Quality Discharge Permit, No. UGW450005 (GWQDP), by the State of Utah Division of Water Quality. The GWQDP details the construction, operation, and monitoring requirements for Clive, Utah facilities that have a potential of releasing fluids to the groundwater. The GWQDP specifies that "Best Available Technology" (BAT) be used in the construction of waste-and wastewater- related facilities and that those facilities be operated according to "Best Management Practices." Condition I.H.20 of the GWQDP requires EnergySolutions to submit a Semi-Annual BAT Monitoring Report that provides results, calculations, and evaluations of daily BAT monitoring data at the EnergySolutions Clive, Utah facility. This report provides the BAT monitoring data for the period of July 1 through December 31, 2023. 2.0 BAT MONITORING DATA BAT monitoring data are collected as described in Appendix J of the GWQDP. BAT monitoring data for July to December 2023 are included in this report as follows: • Appendix A-1, LLRW/1 le.(2) Daily Inspection Forms -documents the results of the daily BAT inspections for LLRW and l le.(2) operations. • Appendix A-2, LLRW/1 le.(2) Weekly Inspection Forms-documents the results of the weekly BAT inspections for LLRW and 1 le.(2) operations. • Appendix A-3, LLRW/1 le.(2) Monthly Inspection Forms-documents the results of the monthly BAT inspections for LLRW and 1 le.(2) operations. • Appendix B, Evaporation Pond(s) Leak Detection System Volume Weekly Calculation Forms-provides weekly calculations of the average daily volume from the leak detection sumps at the 1995, 1997, 2000, and Northwest Comer evaporation ponds. • Appendix C, Mixed Waste Evaporation Pond Daily Inspection Forms-documents daily measurements of fluid head and pumped water volume in the leak detection sump of the Mixed Waste Evaporation Pond. • Appendix D, Mixed Waste Evaporation Pond Leak Detection System Volume Weekly Calculation Forms -provides weekly calculations of the average daily volume from the leak detection sump at the Mixed Waste Evaporation Pond 2nd Semi-Annual 2023 BAT Monitoring Report Page 1 oflO • Appendix E, Rotary Dump Facility Inspection Forms -documents the presence of ponded water at the facility. This is in addition to the daily inspection of the facility performed as part of the LLRW/1 le.(2) daily BAT inspection. • Appendix F, Correspondence-Contains correspondence from reportable incidents. Correspondence referenced in this report are included in Appendix F. • Appendix G, Annual Facility Inspection Reports • Appendix H, Storm Water Collection Worksheets -provides documentation of storm water management including collection locations, quantities, and discharge locations in evaporation ponds. 3.0 SUMMARYOFDATA 3.1 Precipitation: Precipitation data from the Clive facility meteorological monitoring station are provided in Table 1. The total precipitation at the site for the period January 2023 through December 2023 was 11.24 inches (285.50 mm). Precipitation data for the Clive site show that for the current year (2023), precipitation totals were above average. Total precipitation for the second half of 2023 was 4.07 inches, compared to a 30-year average of 3.12 inches. During July, precipitation occurred on 2 days, with a monthly total of0.13 inches and the highest precipitation (0.08 inches) falling on July 19th . During August, precipitation occurred on 7 days, with a monthly total of 0.66 inches and the highest precipitation (0.27 inches) falling on August 1st . During September, precipitation occurred on 7 days, with a monthly total of 0.90 inches and the highest precipitation (0.46 inches) falling on September 21 st . During October, precipitation occurred on 7 days, with a monthly total of 1.42 inches and the highest precipitation (1.05 inches) falling on October 2nd (this information does not include 0.28 inches recorded on October 17th because of semi-annual calibration of the weather station). During November, precipitation occurred on 5 days, with a monthly total of0.80 inches and the highest precipitation (0.26 inches) falling on November 7th . During December, precipitation occurred on 2 days, with a monthly total of 0.16 inches and the highest daily precipitation (0.08 inches) falling on December 3rd . 2nd Semi-Annual 2023 BAT Monitoring Report Page 2 of 10 3.2 Evaporation Pond Fluid Head Monitoring: In accordance with Part 1.E.14.a.3 of the GWQDP, daily fluid head monitoring of evaporation pond leak detection systems is required to be performed each day that waste or water management activities occur. The fluid head monitoring data for each pond are discussed in the following sections. 1995 Evaporation Pond -Daily evaporation pond fluid head measurements are documented in Appendix A-1. Table 2 lists the daily measurements. Figures 1 and 2 provide a comparison of the fluid head measurement to the allowable fluid head of one foot as required by the GWQDP. During the reporting period, the recorded fluid head measurements did not exceed the allowable limit. The information in Appendix A-1 documents compliance with the BAT performance standards for fluid head monitoring at the 1995 Evaporation Pond. 1997 Evaporation Pond -Fluid head measurements were recorded on the Daily Inspection Forms provided in Appendix A-1. Table 2 lists the daily measurements. Figures 3 and 4 provide a comparison of the fluid head measurement to the allowable fluid head of one foot as required by the GWQDP. During the reporting period, the recorded measurements did not exceed the allowable limit. The information in Appendix A-1 documents compliance with the BAT performance standards for fluid head monitoring at the 1997 Evaporation Pond. 2000 Evaporation Pond -Fluid head measurements were recorded on the Daily Inspection Forms provided in Appendix A-1. Table 2 lists the daily measurements. Figures 5 and 6 provide a comparison of the fluid head measurement to the allowable fluid head of one foot as required by the GWQDP. During the reporting period, the recorded measurements did not exceed the allowable limit. The information in Appendix A-1 documents compliance with the BAT performance standards for fluid head monitoring at the 2000 Evaporation Pond. Mixed Waste Evaporation Pond -Fluid head measurements were recorded on the Mixed Waste Evaporation Pond Daily Inspection Forms provided in Appendix C. Table 2 lists the daily measurements. Figures 7 and 8 provide a comparison of the fluid head measurement to the allowable fluid head of one foot as required by the GWQDP. During the reporting period, the recorded measurements did not exceed the allowable limit. The information in Appendix C documents compliance with the BAT performance standards for fluid head monitoring at the Mixed Waste Evaporation Pond. Northwest Comer Evaporation Pond -Fluid head measurements were recorded on the Daily Inspection Forms provided in Appendix A-1. Table 2 lists the daily measurements. Figures 9 and 10 provide a comparison of the fluid head measurement to the allowable fluid head of one foot as required by the GWQDP. During the reporting period, the recorded measurements did not exceed the allowable limit. The information in Appendix A-1 documents compliance with the BAT performance standards for fluid head monitoring at the Northwest Comer Evaporation Pond. 2nd Semi-Annual 2023 BAT Monitoring Report Page 3 of 10 3.3 Evaporation Pond, Flow Monitoring: In accordance with Part 1.E.14.a.2 of the GWQDP, monitoring of the leak detection system flow volume is performed at evaporation ponds each day that waste or water management activities occur. The flow volume monitoring data for each pond are discussed in the following sections. 1995 Evaporation Pond -Average daily flow volumes from the leak detection sump at the 1995 Evaporation Pond were calculated on Evaporation Pond(s) Leak Detection System Volume Weekly Calculation Forms, provided in Appendix B. Table 3 provides a summary of the average daily flow calculations for the reporting period. Average daily flows for the 1995 Evaporation Pond did not exceed the pump-test limit of 155 gallons per day and did not exceed the maximum allowable flow of 162 gallons per day. During the reporting period, there were no apparent trends that might forecast a potential leakage to the groundwater from the facility. EnergySolutions has maintained compliance with the GWQDP BAT performance standards for leak detection system flow volume at the 1995 Evaporation Pond. 1997 Evaporation Pond -Average daily flow volumes from the leak detection sump at the 1997 Evaporation Pond were calculated on Evaporation Pond(s) Leak Detection System Volume Weekly Calculation Forms, provided in Appendix B. Table 3 provides a summary of the average daily flow calculations for the reporting period. Average daily flows for the 1997 Evaporation Pond did not exceed the pump-test limit of 160 gallons per day and did not exceed the maximum allowable flow of 171 gallons per day. During the reporting period, there were no apparent trends that might forecast a potential leakage to the groundwater from the facility. EnergySolutions has maintained compliance with the GWQDP BAT performance standards for leak detection system flow volume at the 1997 Evaporation Pond. 2000 Evaporation Pond -Average daily flow volumes from the leak detection sump at the 2000 Evaporation Pond were calculated on Evaporation Pond(s) Leak Detection System Volume Weekly Calculation Forms, provided in Appendix B. Table 3 provides a summary of the average daily flow calculations for the reporting period. Average daily flows for the 2000 Evaporation Pond did not exceed the pump-test limit of 355 gallons per day and did not exceed the maximum allowable flow of 382 gallons per day. During the reporting period, there were no apparent trends that might forecast a potential leakage to the groundwater from the facility. EnergySolutions has maintained compliance with the GWQDP BAT performance standards for leak detection system flow volume at the 2000 Evaporation Pond. Mixed Waste Evaporation Pond -Average daily flow volumes from the leak detection sump at the Mixed Waste Evaporation Pond were calculated on Mixed Waste Evaporation Pond Leak Detection System Volume Weekly Calculation Forms, provided in Appendix D. Table 3 provides a summary of the average daily flow calculations for the reporting period. The average daily flows for the Mixed Waste Evaporation Pond did exceed the initial action level of 160 gallons per day the week of December 4-12, 2023 with an average pump rate of 165.42 gallons per day. Per GWQDP Appendix K 2nd Semi-Annual 2023 BAT Monitoring Report Page4 oflO 4.1.4, a pump down test was completed on December 11, 2023 by pumping into a container with a known 5-gallon capacity. The pump down test result matched the reading results of the flow meter. Per GWQDP Appendix K 4.1.4.4.c this report provides the written report for the accuracy of the pumping system. The Mixed Waste Evaporation Pond did not exceed the maximum allowable flow of 171 gallons per day for any weekly calculation during 2023. During the reporting period, there were no apparent trends that might forecast a potential leakage to the groundwater from the facility. EnergySolutions has maintained compliance with the GWQDP BAT performance standards for leak detection system flow volume at the Mixed Waste Evaporation Pond. Northwest Comer Evaporation Pond-Average daily flow volumes from the leak detection sump at the Northwest Comer Evaporation Pond were calculated on Evaporation Pond(s) Leak Detection System Volume Weekly Calculation Forms, provided in Appendix B. Table 3 provides a summary of the average daily flow calculations for the reporting period. Average daily flows for the Northwest Comer Evaporation Pond did not exceed the pump-test limit of 300 gallons per day and did not exceed the maximum allowable flow of 326 gallons per day. During the reporting period, there were no apparent trends that might forecast a potential leakage to the groundwater from the facility. EnergySolutions has maintained compliance with the GWQDP BAT performance standards for leak detection system flow volume at the Northwest Comer Evaporation Pond. 3.4 Annual Facility Inspection Reports: East Side Drainage System -The East Side Drainage System was pressure tested and inspected on September 11, 2023. All system piping met test requirements. The testing and inspection report is provided in Appendix G. Containerized Waste Facility and Large Component Evaporation Basin-The annual survey of the evaporation basin was completed on June 28, 2023. The inspection report is provided in Appendix G. LLRW Operations Building Gray Water Tank System -The gray water tank level alarm and leak detection verification system was inspected August 10, 2023. The inspection form is provided in Appendix G. 3.5 Storm Water Management Tracking: Storm water accumulation and management is tracked each day storm water is present in the Restricted Area. Conditions I.E.7.a and I.E.7.b of the GWQDP provide general storm water management requirements for identifying, collecting, and disposing storm water which may potentially come in contact with waste (Contact Storm Water). Condition I.F.24 provides requirements for documenting Contact Storm Water removal activities including: date, time, and location of discovery of storm water accumulation; date and time when storm water removal was initiated at each location; date and time when storm water removal was completed at each location; and volumes of storm water removed at each location as well as where the 2nd Semi-Annual 2023 BAT Monitoring Report Page 5 oflO water was disposed. Condition I.H.20.b of the GWQDP provides requirements for reporting Storm Water Management activities, including the submittal of Storm Water Accumulation Inspection and Collection Forms, which are provided as Appendix H to this report. Combined precipitation during third and fourth quarters of 2023 totaled 4.07 inches resulting in collection of 429,800 gallons of storm water accumulation. For comparison, the 30-year (1993 to 2022) average precipitation total for the third and fourth quarters is 3.12 inches (MSI, 2023). Management review of storm water collection documentation reveals that collection activities occurred as required. 3.6 Out-of-Service Facilities: Containerized Waste Storage Pad-The Containerized Waste Storage pad was taken out of service January 17, 2013 due to cracks on the pad surface. Waste was removed from the pad, and notification was provided to the Division of Radiation Control (DRC) on January 18, 2013 (submittal CD13-0028). Entrances to the pad are roped off, and the pad remained out of service during the second half of 2022. Rail Digging Facility -The Rail Digging Facility was taken out of service on April 1, 2021. Notification was provided to the Division of Waste Management and Radiation Control (DWMRC) on March 26, 2021 (submittal CD-2021-047). Following the inspection of the surface integrity and repair of identified defects, the Rail Digging Facility was placed back into service on October 2, 2023. Notification was provided to the DWMRC on September 25, 2023 (CD-2024-187). East Side Drainage System -Operations associated with the East Side Drainage System, including the Intermodal Container Wash Facility (ICWF), were suspended on September 11, 2023, to perform the annual pipe pressure testing as required by Part 4.16.7 of GWQDP Appendix J. System operation and the operation of associated facilities resumed on September 11, 2023, following the conclusion of the test. 4.0 BAT DISCREPANCIES AND RESOLUTIONS Table 4 provides a summary of the discovery and resolution of BAT discrepancies. Each entry summarizes the date a BAT concern is observed, the location and description of the concern, associated findings/solutions, and the date the concern is resolved. When a BAT concern spans multiple days and is resolved by a single action, the multiple observations are grouped in a single entry (row) on Table 4. Table 4 also lists the completion of modifications of features and/or facilities that have BAT criteria associated with them. As appropriate, Table 4 includes tracking numbers ( e.g., CD-2023-:XXX) for notification letters submitted to DWMRC. Documentation of correspondence related to the BAT discrepancies is included in Appendix F of this report. 2nd Semi-Annual 2023 BAT Monitoring Report Page 6 oflO Table 4 BAT Discrepancies and Resolution -LLRW and Mixed Waste Facilities Date Location Occurrence Findings/Solution Observed Modification of the Southeast & Dividing wall between southeast and southwest bays was 6/12/23 IUF South Bays Southwest Bays removed due to structural integrity issues. Placed back into service 8/4/23 following repairs and inspection Water was present in the northern portion of the building 8/4/23 SRS DU Storage Building Presence of water in building (CD-2023-162). The water was removed the same day. Contractor made roofrepairs to fix leaks (CD-2023-182) Water was present in the northern portion of the building 8/23/23 SRS DU Storage Building Presence of water in building (CD-2023-173). The water was removed the same day. Contractor made roofrepairs to fix leaks (CD-2023-182) A blockage caused a false alarm, the blockage was due to 9/21/23 IUF Lift Station Visual Alarm was activated 0.38 inches of precipitation on 9/21/23. Maintenance removed the blockage and reset the alarm. A second blockage caused a false alarm, the blockage 9/22/23 IUF Lift Station Visual Alarm was activated was due to 0.16 inches precipitation on 9/22/23. Maintenance removed the blockage and reset the alarm. Due to high precipitation, stormwater overwhelmed the 10/2/23 IUF Lift Station Visual Alarm was activated pumps. After the storm event (the same day) the water level dropped, and the alarm deactivated. Addressed in Accordance Date with BAT Addressed Contingency 7/25/23 9/27/23 9/27/23 9/21/23 9/22/23 10/2/23 Plan Schedule (YIN/NA) NIA ya ya y y y 2nd Semi-Annual 2023 BAT Monitoring Report Page 7 of 10 Table 4 BAT Discrepancies and Resolution -LLRW and Mixed Waste Facilities Date Location Occurrence Findings/Solution Observed Water was above the grate of the Due to high precipitation, stormwater overwhelmed the 10/2/23 Rotary Building sediment basin pump. After the storm event (the same day) the water level dropped. Water was present in the northern portion of the building 10/3/23 SRS DU Storage Building Presence of water in building (CD-2023-206). The water was removed the same day. Resolution to prevent leaks is still ongoing at the time. 10/10/23 East Side Drainage Water in the manhole Water was removed the same day (CD-2023-214) System Manhole #1 Vault 10/10/23 East Side Drainage Visual Alarm light was burn out Maintenance replaced the light bulb (CD-2023-214) System Manhole #1 Vault Pond leak detection system fluid The leak detection system pump was replaced (CD-2023-10/16/23 1995 Pond head process unit displayed an 219) error Small liner defects in the 1995, 1997, 2000 and Northwest Pond were repaired within the corrective 1995, 1997,2000,Mixed action plan (CAP) (CD-2023-115). To address average 10/24-Waste, Northwest Holes in pond liners leakage rate exceedances, the Mixed Waste (MW) pond 25/23 Evaporation Ponds was inspected and repaired in accordance with the CAP. To address average leakage rate exceedances, the 1997 pond was inspected with the CAP, no defects were observed. Addressed in Accordance Date with BAT Addressed Contingency Plan Schedule (YIN/NA) 10/2/23 y 10/3/23 ya 10/10/23 y 10/12/23 y 10/17/23 y 10/24-25/23 y 2nd Semi-Annual 2023 BAT Monitoring Report Page 8 oflO Table 4 BAT Discrepancies and Resolution -LLRW and Mixed Waste Facilities Addressed in Accordance Date Location Occurrence Findings/Solution Date with BAT Observed Addressed Contingency Plan Schedule (YIN/NA) East Side Drainage Water observed in the sight glass Leak detection sensors were replaced, water was 11/7/23 removed, and the canister was cleaned. Water was 11/9/23 y System Manhole #2 canister believed to be from condensation (CD-2023-231). 12/12/23 1995 Pond Transducer failed The transducer was reset and put back into service (CD-12/13/23 y 2023-255). DWMRC determined this not to be out of compliance 12/12/23 Track No. 4 Rail Decon Cracks in the floor (DRC-2023-077910). Seek-a-flex was applied to the 12/15/23 y cracks (CD-2023-255). A temporary patch was applied the at the time of the 12/12/23 SRS DU Storage Building A hole was found in a drum inspection. The drum was permanently fixed with 12/12/23 y caulking the same day (CD-2023-255). Water was present in the northern portion of the building 12/12/23 SRS DU Storage Building Presence of water in building (CD-2023-255). The water was removed the same day. 12/12/23 ya Resolution to prevent leaks is still ongoing at the time. a Reporting of the occurrence of water in the building and subsequent inspection was performed in accordance with GWQDP Appendix K Part 4.19.3. 2nd Semi-Annual 2023 BAT Monitoring Report Page 9 of 10 5.0 QUALITY ASSURANCE As required in Appendix J of the GWQDP, the Operations Manager and the Quality Assurance Manager, or designees, reviewed each LLRW/1 le.(2) Daily, Weekly, and Monthly Inspection Form; each Mixed Waste Evaporation Pond Daily Inspection Form; each Evaporation Pond(s) Leak Detection System Volume Weekly Calculation Form; each Mixed Waste Evaporation Pond Leak Detection System Volume Weekly Calculation Form; and each Rotary Dump Facility Inspection Form for completeness, accuracy, and compliance with BAT requirements. The Operations Manager and the Quality Assurance Manager, or designees, also reviewed each Storm Water Collection Worksheet for completeness, accuracy, and compliance with BAT requirements. Additionally, the Manager, Compliance and Permitting, or designee, reviewed all forms for completeness, accuracy, and compliance with BAT requirements in the preparation of this report. As part of the quality assurance review of BAT compliance, the Operations Manager or designee also performs a monthly assessment of daily and weekly BAT inspection activities. 6.0 CONCLUSION During the period of July to December 2023, EnergySolutions performed BAT performance monitoring in accordance with the GWQDP for facilities that have a potential to release pollutants to the groundwater. During this reporting period, EnergySolutions noted relatively infrequent discrepancies with the BAT performance plan. Discrepancies were addressed in compliance with the GWQDP. All facilities were operated in accordance with Best Management Practices and in compliance with Part I.H.20. 2nd Semi-annual 2023 BAT Monitoring Report Page 10 of IO