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Trey C. Flowers, Ph.D., P.E.

Senior Engineer

Civil Engineering

Professional Profile


Dr. Flowers' specializes in the mechanistic modeling of contaminant fate and transport processes in natural and engineered systems. He has an extensive background in surface water hydrology, hydraulics, and environmental fluid mechanics, as well as in the environmental chemistry of both aqueous and soil systems. Dr. Flowers’ Ph.D. research focused on quantifying the influences of density and viscosity on transport processes in groundwater. The principal findings of his research were demonstrated to be directly applicable to many instances of environmental pollution, including the fate of ammonium perchlorate in groundwater, the release of radionuclides from reprocessed nuclear fuel disposal sites, migration of landfill leachate plumes, and the fate of heavy metals associated with acid mine drainage. Additionally, his findings are applicable to many innovative in-situ remediation technologies, such as those using lactate, persulfate, permanganate, and hydrogen peroxide.

In addition to his work at Exponent, Dr. Flowers is an instructor at the Professional Engineering Institute, where he teaches environmental engineering, fluid mechanics, hydrology, and hydraulics review courses to candidates for a professional license in civil engineering. Prior to joining Exponent, Dr. Flowers was a lecturer for upper division environmental engineering courses at both UC Berkeley and at San Francisco State University.

  • Ph.D., Civil and Environmental Engineering, University of California, Berkeley, 2003
  • M.S., Civil and Environmental Engineering, University of California, Berkeley, 1998
  • B.S., Civil Engineering, University of Kentucky (summa cum laude), 1997
  • UC Berkeley Outstanding Graduate Student Instructor Award, Fall 2000
  • American Geophysical Union Horton Research Award, 1999

    • Registered Professional Civil Engineer, California, #68282
    • 40-Hour Hazardous Waste Operator and Emergency Responder (HAZWOPER) Certification
    • 8-Hour OSHA Site Supervisor Certification