John Ehrnfelt

John Ehrnfelt is an accomplished professional in the environmental and construction industries, currently serving as Market Development Manager for GHD since March 2023. In addition, John is the Principal at JW4 Environmental, LLC, a consulting and management service focused on remediation construction planning and management, founded in May 2022. Previously, John held leadership roles at HEPACO, LLC as Vice President of National Remediation Services, and at Environmental Management Specialists, Inc. as Vice President of Remediation Services, along with various project management positions. Early career experience includes working as a Project Engineer at The Great Lakes Construction Company and as a Remediation Engineer at Haley & Aldrich, Inc. John holds a Bachelor of Science degree in Civil & Environmental Engineering from Cleveland State University and has completed additional studies at UNSW.