People: Local Government & Authorities
Ed Ellinger, P.E.
Chief Operations Officer
Adrienne Vicari, P.E.
Vice President | Growth
Doug Weikel, P.E.
Director of Risk Management
Matt Bonanno, P.E.
Assistant Vice President
George White
Assistant Vice President
Herbert, Rowland & Grubic, Inc.Brent Ramsey
Assistant Vice President
Jeff Garrigan, P.E.
Assistant Vice President
Ben Gilberti, P.E.
Municipal & Water Resources
Chad Hanley, P.E.
Water & Wastewater
Justin Mendinsky, P.E.
Assistant Vice President
Tim Staub, AICP
Assistant Vice President
Mark Spatz, P.E.
Site Design
Cory Salmon, P.E.
Assistant Vice President
Erin Letavic, M. Eng., P.E.
Agricultural Engineering
Randy Watts, P.E.
Municipal & Water Resources