Our Team
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Jesse D. Plumley, P.E.
President
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Julian F. Clark, P.E.
Vice President
Managing Engineer – Civil Department
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William J. Spizuoco, P.E.
Senior Engineer - Environmental Department
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Dale R. Vollmer, P.E.
Managing Engineer – Environmental Department
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David K. Meixell, P.E.
Senior Engineer – Environmental Department
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Geoffrey A. Hillenbrand, E.I.T.
Staff Engineer
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Kyle W. Parsons, E.I.T
Staff Engineer
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Frank A. Karboski, P.G.
Senior Geologist and Manager of Geoscience Field Operations
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Matthew T. Martin
GIS Manager / Senior Environmental Scientist
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Derk T. Hudson
Geologist
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William C. McConnell
CAD Drafter
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Lynne A. Hamilton-Johnson, MBA
Comptroller
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Carrie E. Price
Office Manager
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Amanda R. McCarthy
Administrative Assistant
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joel d. plumley, p.e.
founder and president emeritus