Arkansas Nuclear One

​Shutdown Cooling Heat Exchanger

  • Project Completed on Schedule

  • Project Completed $1.8M under Budget

  • $52M EPC

  • Staff of 34 Project Management personnel

  • 0 OSHA Recordable Events 

  • 168k Project Implementation Man-Hours

  • Completion date of June 2017

Project Description:

The 2E-35A/B Shutdown Cooling (SDC) Heat Exchangers (HX) provide cooling for the Spray systems once they go on RAS, Recirc Actuation Signal. They also provide long term cooling during a plant shutdown. Flow through the tubes is Containment Spray or Reactor Coolant per the above listed functions. The 2E-35 SDC HX’s are a required component of the SDC Loop. In 2R24 2E-35A/B were found to have shell wall thicknesses below minimum allowable wall thickness in multiple areas. EC60179 was developed and code repair “PMCaps” were placed on all identified minimum wall thickness areas on 2E-35A & B during 2R24 extending the outage duration.  The objective of this project was to replace the 2E-35A/B Shutdown Cooling (SDC) Heat Exchangers (HX) and to implement in ANO 2 RF025.


Matrix Roles & Responsibilities:

Matrix provided complete PMO Services ; including Project Funding Acquisition, Project Management, Cost Control, Package Planning, Field Implementation Oversight, Safety Oversight, Rad Worker, Material Procurement, Logistics Planning, Rigging Planning & Oversight, Contract Management, PCRS, OCC & War Room. Staffing reached 35 personnel at peak.


Contract Structure:

PMO Contract competitively bid amongst 6 vendors.

Fixed Price with Performance Penalties and Incentives. 


A service disabled veteran owned business (SDVOB) specializing in subject matter expert  (SME) project management oversight services.

Tel: 877-612-2166


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