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Deanne D. Hughes - Prinicpal

Deanne has successfully managed comprehensive environmental permitting activities for over $400 million of industrial construction and operation. Deanne's knowledge of the local, state and federal regulatory climate has afforded her clients the comfort of improved facility operation and eliminated concerns of regulatory violations and negative public opinion. Deanne has proven her ability to negotiate on the clients' behalf for cost effective facility design solutions and environmental compliance within a tightening environmental arena. Deanne manages air quality projects company wide as well as Tulsa operations. Her diverse background and extensive experience in environmental permitting provide clients with important guidance in ever tightening regulatory frameworks.

Deanne recently provided expert review and testimony for an air quality related legal case filed in federal court. Although the case was settled prior to trial, Mrs. Hughes' opinions and testimony were deemed by the court to withstand a Daubert challenge from the plaintiffs.

Key Projects

  • Smith Pocola Electrical Generation Plant, Pocola, OK
  • Pan Pacific Title V and PSD Air Permits, Broken Bow, OK
  • Power Smith Cogeneration,
    Oklahoma City, OK
  • Laidlaw Low Level Radioactive Waste Permit, Tooele County, UT
  • American Medical Disposal Autoclave Permit, Stroud, OK
  • VA Medical Center Prosthetic Lab Air Permit, Oklahoma City, OK
  • OEMA Title V Air Permit, Canadian County, OK
  • Summit Tool Semi-Volatile Organic Remediation, Oklahoma City, OK
  • SemGas LP, Tulsa, OK
  • Western Farmers Electric Cooperative, Oklahoma


  • Professional Engineer/Oklahoma/18698
  • Oklahoma Society of Professional Engineers, 1993 to present
  • National Society of Professional Engineers, 1993 to present
  • Air and Waste Management Association, 1995 to present
  • Vice Chair, Climate Change Management Strategies
  • ODEQ Subchapter 9 Work Group, 2006 to 2007
  • Engineering Society of Tulsa, 2009 to present


University of Tulsa
Bachelor of Science
Mechanical Engineering, 1992

University of Oklahoma
Master of Science
Civil Engineering, 1993