UCC | ADVERTORIAL FEATURE
Corporation: The Global Leader in Nuclear Diving Excellence
Underwater Construction
Since its founding in 1969, UCC has grown to become the largest inland commercial diving firm in the United States and a recognized leader in nuclear diving - supporting utilities, government agencies, and decommissioning authorities worldwide. Through specialized
expertise and an uncompromising commitment to excellence, UCC’s unique processes and training programs ensure safety, regulatory rigor, and precision execution.
IN 2015, UCC ESTABLISHED Underwater Construction Corporation UK, Ltd., the only nuclear diving company operating in the United Kingdom today. Building on that experience, the company developed transferrable processes to support international growth, a safety-first culture, and compliance across regulatory frameworks and reactor technologies. In 2026 alone, UCC will service nuclear customers in Canada, Argentina, Mexico, Romania, Brazil, the United Kingdom, Japan, and the United States.
Capabilities Engineered for Nuclear Environments UCC’s nuclear services are purpose-built for operating plants, shutdown facilities, and complex decommissioning sites. The company provides underwater inspection, maintenance, repair, modifications, coatings, fuel pool services, debris retrieval, component installation, and radiological support dives. These services support BWR, PWR, CANDU, ABWR, VVER, research reactors, and governmental nuclear facilities. In an era of increasing reliance on robotics and remote
systems, UCC continues to prove the unique value of trained nuclear divers. Complex underwater tasks in constrained or legacy environments often require the dexterity, adaptability, and real-time problem-solving that only divers can provide. UCC combines expert diver processes with advanced tooling to reduce schedule risk and optimize outage durations.
Commitment to Regulatory Rigor For industry executives and regulators such as the U.S. Nuclear Regulatory Commission (NRC) and the UK Office for Nuclear Regulation (ONR), vendor qualification and quality assurance are critical. UCC maintains a Quality Assurance Program compliant with 10 CFR 50 Appendix B and ASME NQA-1 standards. The company participates in the Nuclear Industry Assessment Committee (NIAC) audit program and undergoes periodic audits by the Nuclear Procurement Issues Committee (NUPIC). Beyond certifications, UCC’s operational protocols
emphasize dose management, contamination control, human performance tools, and integrated safety planning. Its approach recognizes that nuclear diving is not simply commercial diving in a different setting - it is a highly- specialized discipline governed by nuclear safety principles.
Proven in Complex Decommissioning UCC’s expertise has been showcased in some the world’s most complex nuclear projects. At the Sellafield site in the United Kingdom, UCC divers supported retrieval and cleanup operations within legacy storage ponds
- environments characterized by limited visibility, radiological controls, and historical complexity. In 2022, UCC conducted the first diver entry in decades into the Pile Fuel Storage Pond, marking a significant milestone in one of the UK’s most challenging nuclear cleanup programs. The company’s ability to operate effectively under
stringent regulatory oversight while advancing national decommissioning objectives has solidified its reputation as a global leader.
Scale, Reach, and Readiness Headquartered in Connecticut, with additional US offices in Maryland, Michigan, Tennessee, South Carolina, Texas, and Wisconsin, and supported by its UK subsidiary, UCC combines domestic scale with international agility. It’s established nuclear capabilities enable rapid mobilization to sites around the world. From operational plant support to first-of-a-kind radiological dives and legacy pond interventions, UCC has demonstrated its ability to integrate nuclear safety and nuclear diving services seamlessly. For utilities seeking outage certainty, regulators evaluating vendor capability, and decommissioning authorities confronting complex underwater challenges, Underwater Construction Corporation represents a partner with the history, scale, and discipline to perform when it matters most. In a sector where margins for error can be measured in millisieverts and millimeters, UCC’s record is clear – providing the experience, compliance, and innovation that define effective nuclear diving. ■
www.neimagazine.com | April 2026 | 39
Nuclear divers from UCC UK Ltd enter a radioactive pool untouched since the 1950s—here’s why it matters.
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