Log in

Tetra Tech
John Schaffer

John Schaffer

Lead Office Scientist And Principal Ecologist/risk Assessment Specialist at Tetra Tech

About

Links

Org chart

View in org chart

Manager

Bryan Grace

Principal Environmental Scientist

Peers

David Homer

Senior Environmental Scientist

Steven Cook

Senior Scientist

View in org chart

Timeline

Lead Office Scientist And Principal Ecologist/risk Assessment Specialist
January, 1991 - present