DRC-2025-000669

299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111
[phone] ▪ Fax: [phone] ▪ www.energysolutions.com
February 24, 2025 CD-2025-038 Mr. Doug Hansen Director
Utah Division of Waste Management and Radiation Control
195 North 1950 West Salt Lake City, Utah 84114-4880 Subject: Radioactive Material License UT 2300249
Follow Up to Notification of Potential Shipment Discrepancy with 9088-30-0214 Dear Mr. Hansen,
In a letter dated February 17, 2025 (CD-2025-030), EnergySolutions notified the Director of the
Utah Division of Waste Management and Radiation Control (DWMRC) of a potential discrepancy with Shipment 9088-30-0214 (GSAP 0111000762). Follow up to that notification is provided herein.
Condition Report # CR-2025-0178 has been written to track resolution of this issue. The receipt
inspection of Shipment 9088-30-0214 (Bates # PR10072) Intermodal ESUU100666 that arrived on railcar GIMX 7013 (see attached photographs) on February 24, 2025, identified liquid (pH 10) dripping from the bottom of Intermodal ESUU100666 (see attached photograph) near the door seal. The Contingency Plan was implemented, and the leak was contained to allow for the railcar to be
moved into the Restricted Area. The railcar is currently being stored within Secondary Containment.
Results from the onsite gamma spectroscopy analysis of the liquid detected 21.4 pCi/mL of Cesium-137 (see attached survey). The liquid was observed from the bottom door seal of ESUU100666 and was slowly dripping onto railcar GIMX 7013 and onto the ballast of Track 2 outside the Restricted
Area. The area was cleaned up and a radiological survey performed in the field on and around the
intermodal, railcar, and ballast, yielded results less than Minimal Detectable Activity (MDA) (see attached survey). EnergySolutions contacted the generator on February 17, 2025, to inform of this discrepancy with
ESUU100666 (formal notification, including pictures and other information, was provided to the
generator on February 18, 2025). The generator responded to this discrepancy and immediately applied corrective actions for future shipments. This includes additional amounts of absorbent in each container, both granular and mats, to mitigate the potential of free liquid generation during transport. The generator plans to contact DMWRC as soon as possible to provide details of
corrective actions and answer any questions. The generator is creating a formal Corrective Action
Plan (CAP) to prevent reoccurrence of this issue. To aid in their corrective actions, the generator also requested Clive operations assess the tightness of the door chains and provide pictures and notes

Mr. Doug Hansen CD-2025-038 February 24, 2025 Page 2 of 13

299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111 [phone] ▪ Fax: [phone] ▪ www.energysolutions.com
as the back door on the intermodal is opened; they are looking for any deformities or obstructions in the seals that may have caused this issue and can then tailor corrective actions to ensure this does not occur in the future.

Please consider this the follow-up written notification (required in Radioactive Materials License UT2300249, Condition 68) for this discrepancy.
Should there be any questions regarding this follow up notification, contact me at 801-649-2043.
Sincerely,
Steve D. Gurr Environmental Engineer and Manager

Digitally signed by
Steve D. Gurr
Date: 2025.02.24
11:07:57 -07'00'

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299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111 [phone] ▪ Fax: [phone] ▪ www.energysolutions.com

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299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111 [phone] ▪ Fax: [phone] ▪ www.energysolutions.com

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299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111 [phone] ▪ Fax: [phone] ▪ www.energysolutions.com

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299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111 [phone] ▪ Fax: [phone] ▪ www.energysolutions.com

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299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111 [phone] ▪ Fax: [phone] ▪ www.energysolutions.com

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299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111 [phone] ▪ Fax: [phone] ▪ www.energysolutions.com

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299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111 [phone] ▪ Fax: [phone] ▪ www.energysolutions.com

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299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111 [phone] ▪ Fax: [phone] ▪ www.energysolutions.com

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299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111 [phone] ▪ Fax: [phone] ▪ www.energysolutions.com

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299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111 [phone] ▪ Fax: [phone] ▪ www.energysolutions.com

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299 South Main Street, Suite 1700 ▪ Salt Lake City, Utah 84111 [phone] ▪ Fax: [phone] ▪ www.energysolutions.com