DUF6 Mission

Mid-America Conversion Services, LLC (MCS) manages the Depleted Uranium Hexafluoride (DUF6) Conversion Facilities at the U.S. Department of Energy sites near Paducah, Kentucky and Portsmouth, Ohio.

The conversion facilities were designed and constructed to convert DOE’s inventory of DUF 6 produced by the former Paducah Gaseous Diffusion and the Portsmouth Gaseous Diffusion Plants, to a more stable uranium oxide form for reuse, storage, and/or transportation and disposition. MCS’ focus will be on continuing to provide cylinder surveillance and maintenance (S&M) for the DUF6 conversion facilities and associated equipment, operating the conversion facilities to convert the DUF6 from the inventory at Paducah and Portsmouth to uranium oxide; reusing, storing, transporting and/or and disposing of the DUF6 conversion process end-products; selling the aqueous hydrofluoric acid (AqHF) product; and, providing S&M services for the cylinder storage yards.


We will engage with the outstanding women and men who work at the DUF6 facilities and build an integrated team that can take on the challenges related to cylinder yard and conversion operations. Together we will reach our goal of achieving the designed throughput for the facilities. Working as a team, we will implement our Integrated Production System and we will train and motivate our team to deliver exceptional safety and operational performance.

Our Integrated Production System is employee-driven and combines the best industry practices and encompasses all the elements of Integrated Safety Management Systems.

ISMS Guiding Principles are used to systematically integrate safety into management and work practices at all levels so that work is accomplished while protecting the public, the workers, and the environment. This is achieved through integration of safety management into all facets of work planning and execution and the overall management of safety functions and activities becomes an integral part of mission accomplishment.

1. Line Management Responsibility for Safety

2. Clear Roles and Responsibilities

3. Competence Commensurate with Responsibilities

4. Balanced Priorities

5. Identification of Safety Standards and Requirements

6. Hazard Controls Tailored to Work Being Performed

8. Operations Authorization

ISMS Core Functions provide the necessary safety management structure to support any work activity that could potentially affect the public, workers, and the environment. These functions are applied as a continuous cycle with the degree of rigor appropriate to address the type of work activity and the hazards involved.

Core Function 1: Define the Scope of Work

Core Function 2: Analyze the Hazards

Core Function 3: Develop and Implement Hazard Controls

Core Function 4: Perform Work Within Controls

Core Function 5: Provide Feedback and Continuous Improvement


Human Performance Tools are used to help the individual performer maintain positive control of a work situation. HPI Tools deliberately slow things down to ultimately speed things up by avoiding delays that accompany events triggered by active errors.

1. Human Performance is all about having the right to reduce errors and prevent  results.

2. Culture designed to keep everyone safe, all while accomplishing our Project’s    mission.

3. It includes tools that consciously reduces human error and bolsters controls in  order to reduce accidents and events.

4. A distinct and practical way of thinking about hazards and taking action to eliminate or reduce risks and error.

Integration of ISMS and HPI

Systematic, common sense approach to working safely “into management and work practices at all levels, addressing all types of work and all types of hazards to ensure safety for the workers, the public, and the environment.”

When using the HPI tools, we implement them within ISMS, not as a stand-alone program outside of the ISMS framework

DOE established the ISMS Guiding Principles and Core Functions and DUF6 implemented the ISMS Plan for Operations, DUF6-PLN-040

Safety depends on all Guiding Principles and Core Functions and HPI enhances them. If just one guiding principle or core function is not implemented, the circle of safety is at risk.