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Environmental Health and Safety Training Staff

Terracon's Puget Sound area training staff has combined experience of more than 80 years. We have trained thousands of workers from many public and private-sector organizations in fields such as engineering, hazardous waste, construction, environmental consulting, and asbestos abatement.

Click on a name below to learn more about each  team member.

Sue Maas
Training Division Manager
David Welch
Training & Development Specialist
Andre Zwanenburg
Senior Training And Development Specialist
Tracy Greene
Training & Development Specialist
Aaron Cravens
Training Coordinator
Naylea Villalpando
Training Coordinator & Instructor