engineering services

  • NAICS 541330 Engineering Services.
  • NAICS 541690 Other Scientific and Technical Consulting Services.
  • DUNS: 079188211
  • Cage Code: 70SN6
MCHX Technology, LLC.
  • HVAC and Piping Systems design for Educational Facilities, Power Generation Facilities, High-Performance Healthcare Facilities, Hazardous Waste Treatment Plants and Process Piping Systems.
  • Mechanical Inspection Services covering piping, HVAC, fire protection and life safety systems.
  • Qualified Professional Engineer Design and Code Compliance Reviews.
  • Value Engineering to identify opportunities for improved functionality and design cost effectiveness.


MCHX Technology, with its extensive engineering experience, has subcontracted to prime companies on a variety project.



  • U.S. Army Pueblo Chemical Depot (PCD) Chemical Agent Destruction Pilot Plant Project, Colorado: Performed Independent Qualified Registered Professional Engineer (IQRPE) review of Static Detonation Chamber Systems for the disposal of chemical munitions.
  • Hanford DOE site located in Washington State: Performed Mechanical systems Design Verification of the Effluent Treatment Facility (ETF) Load In expansion for the. The ETF Load In Facility receives liquid radioactive waste.
  • Bonneville Power Administration (BPA) Fleet Service Building 60% and Final Code reviews.
  • Mechanical engineering inspection Services for (WADOT) Washington State Department of Transportation’s I-90 lane modifications and light rail addition through the Mercer Island Tunnel.
  • Independent Qualified Professional Engineering Review of treatment plant under an RD&D permit issued by the U.S. DOE and CH2M HILL.


  • Provided complete engineering design of mechanical HVAC systems associated with major energy efficiency upgrades for the Flandreau, South Dakota Indian School campus, including school building, dormitories, cafeteria and social center.
  • Value Engineering team; mechanical and electrical engineering design review of Bureau of Indian Affairs (BIA) project for the Cove Day School in Arizona.
  • Performed Professional Engineering review of MEP systems for BIA Pine Hill and Santa Rosa Schools new construction and upgrades.
  • Professional Engineering design review of cogeneration energy projects for Northern California high schools Sir Francis Drake, Redwood and Tamalpais.


  • Mr. Zess is President of MCHX Technology, LLC and is a licensed Professional Engineer.
  • Active member of the American Society of Heating, Refrigeration & Air Conditioning Engineers (ASHRAE).
  • Active member of the American Society of Mechanical Engineers (ASME).
  • Active member of the Society of American Military Engineers (SAME).
  • Active member of the American Nuclear Society (ANS).
  • Member of the Veteran of Foreign Wars (VFW).