Org chart
Jeff Schumaker
President - Principal
Jeff Schumaker
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Martin Serafine
Survey Crew Chief
Janine Riemersma
Support Services Director
Steven Romkema Aia
Marketing Director
Karen van Drie
Vice President/human Resources Director
Arif Cekic
Vice President
David Stegink
Vice President/brownfield Program Manager
Leonard Harwell
Vice President/senior Project Manager
Wayne Langeland
Senior Project Manager, Vice President
David B. Warwick
Vice President - Senior Hydrogeologist
Cynthia Porter Janes
Vice President | A/e Civic Market Leader
Jacquelyn Linck
Vice President- Environmental Division Sales & Marketing Director
