Meet Gei's

Thomas A. Daigle, P.G.


Tom is a geologist responsible for planning and managing a wide range of environmental and geotechnical projects. He provides strategic consulting services to solve problems related to remediation and compliance typically at contaminated sites. Tom also leads GEI’s Non-Aqueous Phase Liquid (NAPL) transmissivity testing practice specializing in NAPL transmissivity test procedures, analysis methods, and regulatory reporting.

He holds an M.S. in Geology from Northern Arizona University, and a B.S. in Biology/Geology from Union College.

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Denver, Colorado


  • Professional Geologist: NE, WY, CA
  • Geological Society of America - Member
  • Rocky Mountain Association of Environmental Professionals - Member
  • Rocky Mountain Association of Geologists - Member
  • American Association of Petroleum Geologists