Our professional engineering staff

Clark Dietz is a large, interconnected community of professionals who also happen to be engineers. Our professional engineering staff has nurtured decades of strong relationships, working in concert to sustain and build our modern environment. Delivering solutions across our full line of markets and services, Clark Dietz serves to exceed expectations. Every time.

John Boldt, PE
John Boldt, PEChairman of the Board
Wastewater, Municipal,
Board of Directors
Antonio Acevedo, PE
Antonio Acevedo, PEProject Engineer
Mary Austin, PE
Mary Austin, PESouthern Indiana Area Manager
Municipal, Drinking Water, Stormwater, Wastewater, Transportation
Jennifer Barlas
Jennifer BarlasBusiness Development
Emily Basalla, PE, CFM
Emily Basalla, PE, CFMSouthern Wisconsin Area Manager
Andrea Bretl, PE, ENV SP
Andrea Bretl, PE, ENV SPCivil/Environmental Team Leader, Central Illinois
Robert Chandler, PE
Robert Chandler, PEProject Manager
Wes Christmas, PE, ENV SP
Wes Christmas, PE, ENV SPIndiana Regional Director, Director of Business Development
Transportation, Wastewater, Stormwater, Municipal,
Board of Directors
Chip Craddock, PE
Chip Craddock, PEChief Executive Officer / President
Wastewater, Drinking Water, Mechanical, Electrical,
Board of Directors
Tara Damin
Tara DaminBusiness Development
Project Development, Funding Resource Research, Grant-writing & Administration Assistance
Stacie Dovalovsky, PE
Stacie Dovalovsky, PENorthern Illinois Area Manager
Transportation, Board of Directors
Scott Drabicki, PE
Scott Drabicki, PECivil/Environmental Team Leader, Northern Illinois
Municipal, Drinking Water, Stormwater, Wastewater
Mustafa Emir, PhD, PE
Mustafa Emir, PhD, PEWisconsin Regional Director
Stormwater, Municipal,
Board of Directors
Brandon Flunker, PE, CFM
Brandon Flunker, PE, CFMProject Engineer
Stormwater, Power & Energy, Municipal
Thomas Foley, PE
Thomas Foley, PEProject Engineer
Christopher Gutkowski, PE, CFM, ENV SP
Christopher Gutkowski, PE, CFM, ENV SPProject Engineer
Kevin Hetrick, PE
Kevin Hetrick, PECentral Indiana Area Manager
Transportation, Board of Directors
Jon Howaniec, SHRM-CP
Jon Howaniec, SHRM-CPVice President / HR Director
Board of Directors
Ryan Hughes, PE
Ryan Hughes, PEProject Engineer
Road Diet Specialist
Julian Jones, PE
Julian Jones, PEProject Manager
Chester Kochan, PE
Chester Kochan, PESenior Project Manager
Construction, Transportation
Jim Loew, PE
Jim Loew, PEProject Engineer
Kevin Loiselle, PE
Kevin Loiselle, PEProject Manager
Chaitanya Mamidala, PE
Chaitanya Mamidala, PEProject Engineer
Transportation, Municipal
Sean Marzano, SE, PE
Sean Marzano, SE, PEStructural Engineer
Transportation, Wastewater, Drinking Water, Stormwater, Power & Energy, Municipal, Mechanical, Electrical
Nirav Patel, PE
Nirav Patel, PEMechanical/Electrical Team Leader, Illinois
Wastewater, Drinking Water, Power & Energy, Mechanical, Electrical, Municipal
Kendrick Payne, PE, LEED AP
Kendrick Payne, PE, LEED APSenior Project Engineer
Mechanical, Electrical
Jerald T. Payonk, PE
Jerald T. Payonk, PEExecutive Vice President / Director of Engineering
Transportation, Board of Directors
Hans Peterson, PE
Hans Peterson, PECivil/Environmental Team Leader, Indiana
Wastewater, Stormwater
Deborah Porter, PE
Deborah Porter, PEProject Engineer
Brian Powers, PE, CFM, ENV SP
Brian Powers, PE, CFM, ENV SPProject Engineer
Transportation, Stormwater
Archana Raju, EI
Archana Raju, EIStaff Engineer
Stormwater, Wastewater
Kevin Risch, PE
Kevin Risch, PEProject Manager/Municipal Engineer, Wisconsin
Transportation, Municipal
Anne Shaw
Anne ShawEnvironmental Specialist
Environmental + Cultural,
Section 106 Compliance Specialist
Allen Staron, PE
Allen Staron, PEIllinois Sales Manager
Diane Thoune, PE
Diane Thoune, PEProject Engineer
Wastewater, Drinking Water, Stormwater, Municipal
Eric VonHoven
Eric VonHovenResident Project Representative
Tonia Westphal, PE, LEED AP
Tonia Westphal, PE, LEED APNorthern Wisconsin Area Manager
Power & Energy, Municipal,
Board of Directors
Sean Widener, PE, PTOE
Sean Widener, PE, PTOECentral Illinois Area Manager
Transportation, Municipal,
Board of Directors
Lisa Zahrt, PE, LEED AP
Lisa Zahrt, PE, LEED APMechanical/Electrical Team Leader, Wisconsin
Mechanical, Electrical
Paul Zouski, PE
Paul Zouski, PESenior Engineer
NFPA 70E Compliance Specialist

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