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NNSA Y-12 Project Management Office Technical Support Services

Y-12 UPF ConstructionSigma Science provides technical support services to the National Nuclear Security Administration (NNSA) Office of Acquisition and Project Management (NA-APM) and the Y-12 Acquisition Project Management Office (Y-12 APMO) under a $69.4M 5-year prime contract, awarded in November 2022 under the TEPS II contracting vehicle. 

Sigma provides NNSA oversight support for major capital construction projects at the Y-12 National Security Complex (Y-12), including the $6.5B Y-12 Uranium Processing Facility (pictured), the Lithium Processing Facility, and other Y-12 capital acquisition projects.

The Sigma team includes subcontractors Strata-G, LLC (Strata-G) and Professional Project Services, Inc. (Pro2Serve). Sigma currently provides more than 25 personnel performing project monitoring and control, construction management/engineering, quality assurance, and engineering. The Sigma team also includes project controls subject matter experts (SMEs) risk managers, contracts specialists, nuclear facility operations SMEs, safeguards and security SMEs, readiness SMEs, training specialists, and administrative support staff.

Key work scopes include:

  • Support contractor assessments of systems, processes, plans, procedures, personnel, projects, and program activities (e.g., reactive, proactive, shadow, and independent assessments)
  • Support various design, performance, and internal peer reviews
  • Perform formal project design reviews at critical decision points per DOE O 413.3B
  • Review project deliverables (e.g., technical drawings, specifications, calculations) for accuracy and completeness
  • Support Federal Project Directors by providing project controls engineering support, including developing detailed independent schedules, independent cost estimates, risk management, and evaluation and oversight of contractor schedules and cost estimates
  • Manage Baseline Change Control Board meetings and facilitate negotiations between Y-12 APMO, the Management and Operating (M&O) contractors, and construction prime contractors
  • Review contractors’ monthly reports, including associated variance reports
  • Develop internal and external briefing materials and reports
  • Conduct quality management and associated support tasks, evaluating approved suppliers, performing assessments, and investigating quality assurance and quality control concerns
  • Conduct engineering and engineering management support tasks
  • Conduct construction management and oversight tasks, including constructability reviews, walkthroughs, assessments, and construction activity reviews
  • Conduct assessments and reviews of operational preparation, startup, and operational tasks
  • Perform operability, maintainability, and sustainability design reviews
  • Support NNSA operational readiness activities
  • Assist with security risk assessments and oversight
  • Provide safeguards and security expertise

Key accomplishments include:

  • Completed contract transition
  • Hired incumbent staff under the new Sigma contract, maintaining continuity of technical support
  • Provided new technical professional staff to fill vacant positions, demonstrating the Sigma Team’s Rapid Talent Pipeline effectiveness
Photo: NNSA-News Flickr