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A Veteran Owned Small Business

423-596-5079 or





About CCA:

Carignan & Associates (CAA) was founded in January of 2015 as a professional consulting firm providing decommissioning cost estimating, training, readiness assessment, project management support and planning support services. We are a veteran owned small business (U.S. Navy submarine service). Our nuclear professionals supporting CAA are all seasoned professionals with proven records of success in both large and small decommissioning projects and many with commercial nuclear plant experience.  Whether it is a small project or a large long-term effort, our support for each project is tailored to meet the client's needs with a goal of providing the highest quality service; on time and on budget. 

What we do:


  • Prepare quality detailed and defendable Decommissioning Cost Studies/Estimates (DCE) using the Unit Cost Factor approach providing the client with a transparent, defendable estimate. 

  • Perform independent reviews/assessments DCEs and the supporting documents prepared by others.

  • Develop decommissioning planning documents and procedures.

  • Provide on-site as well as remote decommissioning trainin and project oversight.

  • Provide on-site staffing for long- and short-term assignments including oversight and project management support.

  • Prepare reports and studies for clients relating to nuclear decommissioning.

  • Conduct or support readiness reviews for decommissioning related activities.

  • Coachig and mentoring

Recent Projects:

  • Cost Estimating to support NNSA Project

  • Decommissioning Cost Study - Decommissioning of a university of Accelearator 

  • Project Management Support - On-site coaching and support to the Project Manager on a large DOE project.

  • Decommissioning Study - "Study Of Decommissioning Project Management Systems And Approaches For United States Nuclear Power Plants".

  • Remediation Estimate - Cost Estimate Analysis in support of a legal action for site cleanup.   

  • Large Research Reactor (confidential) - Developed Decommissioning Cost Estimate and Risk Analysis. 

  • Multiple Decommissioning Cost Estimates - Seven independent Cost studies for Lawrence Berkeley National Laboratory – 

  • Confidential Client - Evaluation of the Utility DCE to assess the cost realism and potential risk concerns for the potential purchase.. 

  • Decommissioning Training and DCE Assessment  - San Diego Gas & Electric   for the San Onfre Nuclear Plant decommissioning

  • Nuclear Ship Savannah Conducted an assessment of the ships decommissioning cost estimate and plans.

  • San Onofre Nuclear Generating Station Provided Risk Analysis support and consulting services.

  • Subject Matter Expert - International Atomic Energy Agency (AEA) provided services as a Subject Matter Expert on various missions including China, Romania, Slovakia, Japan, and Republic of Korea and Canada

  • Canadian Nuclear Laboratories - (Previously AECL) – Developed/conducted D&D Cost Estimating Workshops for over 100 CNL employees

  • Training  Provided and continue to provide decommissioning training in the areas of project planning and management, decommissioning cost estimating, transition planning, health and safety, and introduction to risk management.  This supports Argonne National Laboratory (ANL) Decommissioning training program (over 3000 students in over 30 countries)

  • Confidential clients – Due diligence and decommissioning expert consulting for companies entering or evaluating the decommissioning market as a contractor or potentially purchasing a facility.

  • Performance Based Assessments - Mr. Carignan also has over 10 years managing and conduction operational readiness reviews and performance assessments for operating nuclear facilities as well as decommissioning projects.

For more information or questions on how we can support you, please contact us at:

423-596-5079 or

 Veteran Owned Small Business
USN - Submarines


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