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Contacts

Leonard Harwell

Vice President/Senior Project Manager

Email: [email protected]

Phone: 313.293.3544

Location: Detroit, Michigan

Roman Wilson

Vice President/Due Diligence and Brownfield Services Director

Email: [email protected]

Phone: 616.464.3876

Location: Grand Rapids, Michigan

Associations

  • Air & Waste Management Association/ West Michigan - Member
  • Grand Haven Brownfield Redevelopment Authority - Member
  • Michigan Economic Developers Association - Member
  • Commercial Alliance of Realtors - Member

John Willemin, PE

Senior Vice President

Email: [email protected]

Phone: 616.464.3801

Location: Grand Rapids, Michigan

Associations

  • American Water Works Association/Michigan Section - Chair
  • Water Environment Federation - Member
  • Michigan Water Environment Association - Member

Greg Tkacz, PE, LEED AP BD+C

Senior Vice President

Email: [email protected]

Phone: 513.247.8563

Location: Cincinnati, Ohio

Associations

  • American Society of Heating, Refrigerating, and Air Conditioning Engineers - Member
  • National Society of Professional Engineers - Member
  • International District Energy Association - Member
  • Society for Marketing Professionals Services - Member

Robb Welch, PE

Vice President/Senior Civil Engineer

Email: [email protected]

Phone: 517.887.4027

Location: Lansing, Michigan

Associations

  • National Society of Professional Engineers -

Fernanda Wilson, Ph.D.

Environmental Engineer

Email: [email protected]

Phone: 616.464.3752

Location: Grand Rapids, Michigan

Associations

  • Ottawa County Planning Commission - Commitee Member
  • Grand Haven Brownfield Redevelopment Authority - Commitee Member

Ryan Musch, PE, LEED AP, SITES AP

Senior Vice President/Senior Civil Engineer

Email: [email protected]

Phone: 616.464.3905

Location: Grand Rapids, Michigan

Associations

  • Green Building Certification Institute - Member
  • LEEDuser - Member
  • US Green Building Council/West Michigan Chapter - Member
  • Society for College and University Planning - Member
  • National Council of Examiners for Engineering and Surveying - Member

Jason Vander Kodde, PE

Senior Civil Engineer

Email: [email protected]

Phone: 616.464.3938

Location: Grand Rapids, Michigan

Associations

  • International Council of Shopping Centers - Member
  • American Society of Civil Engineers/Michigan - Member
  • Calvin Engineering Advisory Council - Member, Past Chairman
  • Blendon Township Planning Commission, Ottawa County - Member, Secretary

Josh Mihelcic, PE, PS

Vice President/Senior Civil Engineer/Senior Surveyor

Email: [email protected]

Phone: 937.802.3280

Location: Dayton, Ohio

Associations

  • National Association of Land Surveyors - Member
  • Professional Land Surveyors of Ohio - Member
  • PLSO, Miami Valley Chapter - Treasurer
  • National Society of Professional Engineers - Member

John Johnson

Vice President/Senior Civil Field Technician

Email: [email protected]

Phone: 517.887.4031

Location: Lansing, Michigan

Associations

  • National Association of Corrosion Engineers -

Liz Marsh, PE, CHMM

Senior Environmental Engineer

Email: [email protected]

Phone: 248.862.7677

Location: Ann Arbor, Michigan

Associations

  • Certified Hazardous Materials Managers of Michigan - Member
  • Alliance of Hazardous Materials Professionals - Member
  • Certified Hazardous Materials Managers of Michigan - Director
  • Air & Waste Management Association Journal - Member

Maria Sedki, PE

Vice President/Senior Civil Engineer

Email: [email protected]

Phone: 248.324.1228

Location: Farmington Hills, Michigan

Associations

  • Arab American Association of Engineers & Architects - Member
  • Michigan Water Environment Association - Member
  • Water Environment Federation - Member

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