Our Leadership
Our focus is on providing technically and economically sound solutions to our clients’ needs. Our staff includes numerous professional within the engineering and science fields with professional registrations and certifications across the country. Aquaterra’s expertise and professional reputation enable us to provide high quality and comprehensive services in a timely and cost-efficient manner.
Doug Doerr, PE
Founder, President/CEO
Matt Crockett, PE
Denver Office Manager
Alan Johns
Tulsa Office Manager
Wade Miller
Oklahoma City Office Manager
Floyd Cotter, PE
Founder, Vice President/COO
Nathan Hamm, PE
Kansas City Office Manager
Alternative Energy Practice Leader
Anastasia Welch, PE
Solid Waste Services Practice Leader
Matt Ballance, PE
St. Louis Office Manager
Civil Engineering Practice Leader
John Hartwell, PE, CHMM
Chief Engineer
Monte Markley, PG
Wichita Office Manager
Michele Boussad
Columbia Office Manager
Jennifer Hoevet, PE
Scottsbluff Office Manager
Mike Miller, CHMM
Omaha Office Manager
Environmental Services Practice Leader












