A Veteran Owned Small Business








With over 44 years of diverse nuclear experience, I am pleased to offer my services in a number of key areas where I have successfully managed or supported companies in their quest to improve the nuclear industry.  My management and practical (field) experience brings a unique perspective from plant operations and training to decommissioning, readiness assessments, and business development.  

​I personally have over 30 years of decommissioning experience from Operations Manager on the first large scale reactor decommissioning (Shippingport Station Decommissioning Project) to supporting numerous large and small scale decommissioning projects; both domestically and internationally.  This includes supporting projects such as Big Rock Point, Saxton, Humboldt Bay, RMI, San Onofre, and the Hanford and Savannah River sites.  Areas of expertise include training, planning, cost estimating, readiness assessments as well as risk and project management.  I also routinely provide decommissioning training and support for Argonne National Laboratories in areas of project management, cost estimating, risk management, and transition planning.  As an IAEA expert, I have supported numerous IAEA Missions for the international community, most recently in Lithuania and Korea.

About CCA:

Carignan & Associates LLC  (CAA) is a small business established in January of 2015 providing quality decommissioning support for both commercial and government facilities.  In a short period of time we have developed a reputation for providing quality support services for the nuclear industry. Each project is tailored to meet the clients needs working with experienced, well known decommissioning and nuclear professionals to ensure the we provide the highest quality service. 

Located in Chattanooga, Tennessee, CAA provides decommissioning support including decommissioning cost studies/estimates, due diligence, training and assessment/oversight support both domestically and internationally.  CAA teams with experienced Nuclear Professionals with extensive management and cost estimating experience to develop quality products for our clients..  Associates include highly experienced decommissioning professionals with experience in training, decommissioning cost estimating, risk analysis and due diligence reviews.  Each Associate used on a project are pre approved by our clients.


CAA also teams with numerous highly respected companies to provide support to the nuclear industry including LaGuardia and Associates LLC, MegaTech Services LLC, Ameriphysics, ReNuke Services Inc.,Talisman International, LLC and Empyrean Services.

What we do:


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

  • Review/Assess DCE and supporting documents prepared prepared by others

  • Develop decommissioning planning and supporting documentation

  • Provide on site and remote decommissioning training and oversight.

  • Provide on-site staffing for long and short term assignments 



Where we added value:

  • Speaker - Support numerous 

  • Large Research Reactor (confidential) - Developed Decommissioning Cost Estimate and Risk Analysis for future Laboratory site decommissioning

  • Lawrence Berkeley National Laboratory – Prepared decommissioning cost estimates for numerous buildings as part of the sites redevelopment efforts

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

  • San Diego Gas & Electric – Provided decommissioning training and assessment support for the decommissioning cost estimate 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

  • International Atomic Energy Agency – Provided over 7 decommissioning consulting support on expert missions in the areas of training, cost estimating, planning and risk management.  Countries include Japan, China, Romania, Slovakia, Republic of Korea and Canada

  • Canadian Nuclear Laboratories - (Previously AECL) – Developed the training and conducted training and Cost Estimating Workshops for over 100 CNL employees

  • Argonne National Laboratory (ANL) – Have provided training for over 2500 personnel in the areas of project planning and management, decommissioning cost estimating, transition planning, health and safety, and introduction to risk management

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

For more information or questions on how we can support you, please call, text or Email me.

 Veteran Owned Small Business
USN - Submarines


Present and Upcoming Activities 




San Diego

Oak Ridge

Las Vegas

Republic of Korea



Supporting Nuclear Ship Savannah

Completed Independent Assessment of their Decommissioning Cost Estimate and plan.

01-03/2017 Preparing the Decommissioning Plan 

Presentations on Transitioning a Nuclear Plant from Operations to Decommissioning - EPRI, ANL, IAEA

Joe Carignan


Chattanooga, TN


Joe Carignan


6858 Village Lake Circle

Chattanooga, TN 37412

Past & Present

Over 25 years of decommissioning experience both domestic and international including planning, project management, cost estimating, training and business development. 


As the owner, Mr. Carignan’s extensive decommissioning experience includes supporting clients & projects:

  • Major D&D Comany Due Diligence - Confidential (2017)

  • San Diego Gas and Electric

  • Nuclear Ship Savannah

  • San Onofre Nuclear Decommissioning - RSCS 

  • Canadian Nuclear Laboratories

  • Big Rock Point Nuclear Power Plant (NPP) decommissioning

  • Humboldt Bay NPP Decommissioning

  • Connecticut Yankee – Bechtel Support

  • Saxton Contaminated Concrete Removal Project

  • Cintichem Decommissioning Project

  • Hanford Restoration Project

  • RMI Decommissioning Project

  • Comal and City of Austin

  • Tennessee Valley Authority's Decommissioning Cost Estimates 

  • IAEA Missions - e.g.Romania, China, Lithuania, Slovakia and Austria

  • 15+ Years Supporting Argonne National Laboratories Decommissioning Training Course – Instructor

Our Services

  • Customized Training on Decommissioning Topics including Decommissioning Cost Estimating, Planning and Management.

  • Workshops on Decommissioning - Cost Estimating

  • Staff Augmenation  - On-Site Decommissinong Support in all areas

  • Operational Readiness Assessments -  Experienced D&D personnel will conduct readiness assessments for larg or small tasks

  • Performance Based Assessments - Experience personnel with INPO, QA or NRC experience will support or conduct INPO or NRC type inspections for operating nuclear power plants. 

  • Document and Procedure review or Preparation

  • Risk Analysis

  • Decommissioning Cost Estimation and Planning