In 1988, Master-Lee Energy Services (MLES) began offering Balance of Plant (BOP), Eddy-Current Testing (ECT) Services.  This product line has grown tremendously in the last twenty five years.  We are currently one of the largest single suppliers of BOP/ECT services in the commercial nuclear power industry. 

Operating and managing a stringent training program in-house, MLES has internally trained our staff of over 100 BOP/ECT dedicated Specialists.  Since 1988, MESC has performed over 800 separate BOP/ECT projects.

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MESC provides Eddy Current Testing and Analysis of feedwater heaters, condensers, service water component cooling and other various heat exchangers.  We have performed work in Nuclear, Fossil, Hydro-Electric and Co-Generation Plants.  MESC utilizes Corestar’s EddyVision Software for Acquisition, Analysis, and Data Management on all projects.  Reports are generated to inform customers of tubing integrity along with any additional information that could assist with determining the condition of the Heat Exchanger(s) (eg. Tube Support Erosion). 


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MESC also has one of the most formalized NDE ECT training curriculums in the industry.  Our state-of-the-art training facility has all of the amenities necessary to support every aspect 
of training.  The class structures vary based on the certification level being taught. Our Specialist's are certified under MESC's own QA program which follows the guidelines set forth in SNT-TC-1A 1988 Edition and CP189.  MESC formalized training program certifies Specialists to:

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  • BOP/ECT Levels IT
  • BOP/ECT Levels II
  • BOP/ECT Levels III
  • ECT QDA Analysts
  • BOP/ECT Levels I
  • BOP/ECT Levels IIA
  • BOP/ECT Levels IIIA


MESC maintains two separate BOP/ECT equipment maintenance facilities.  These sites afford MESC the ability to perform with minimal concern for equipment integrity.  If a need arises for repair/replacement, both locations are strategically placed to offer abundant coverage in an emergent situation.

Contact us to learn how we can help on your next project.