Gredell Engineering Resources, Inc. was founded on the principle of working closely with clients to meet their project goals while providing quality services in a timely manner. Client loyalty and referrals are proof that we have held to this principle.
GREDELL Engineering Resources, Inc. (Gredell Engineering) offers civil engineering design with an environmental focus. Gredell Engineering was founded in 2001 by Thomas R. Gredell, P.E., BSCE, MSCE. After graduation from the University of Missouri–Rolla, Mr. Gredell worked for the state of Missouri’s solid waste management regulatory permitting program for 12 years. Prior to starting Gredell Engineering, he worked nine years for private consulting firms, first as a project manager and vice-president of a Missouri consulting firm from 1992 through June 1998, then followed by 2.5 years as a project manager for a regional Midwest consulting firm.
Gredell Engineering has experienced steady, controlled growth since 2001. Based in Jefferson City, we have branch offices located in Springfield, Missouri, and Lenexa, Kansas. The Jefferson City office is strategically located within 1 mile of the Missouri Department of Natural Resources (MDNR) headquarters and their Elm Street office. This location provides Gredell Engineering with central geographic access to the state of Missouri and the state regulatory agencies.
Since our beginning in 2001, Gredell Engineering has assembled a diverse team of highly qualified personnel to assist you with your environmental projects. Our senior staff represents over 200 years of combined environmental, engineering, geology, and geotechnical experience. We have completed waste facility designs, geologic evaluations and assessments, subsurface investigations, and environmental permitting and compliance services to a variety of closely held private companies, public companies, and government clients.
Diligent, conscientious project management is the key to Gredell Engineering’s success and to our client’s satisfaction. Our extensive technical and regulatory knowledge and experience allow us to see the big picture while focusing on the client’s project objectives as well as the intricate details inherent in environmental design and regulation. As consultants, our approach is to work closely with and as an extension of your staff to assure the end result meets your needs and the requirements of your project.
Meet Our Team
Our senior staff represents over 200 years of combined experience in environmental, engineering, geologic and geotechnical experience.
Thomas R. Gredell
Principal Engineer
Education: B.S., Civil Engineering, M.S., Civil Engineering (Water and Wastewater Treatment)
Registration: Professional Engineer: Missouri, Kansas
Professional Experience: Total of 38 years: Public Agency Experience (MDNR) and Private Consulting
Areas of Expertise: Solid/Hazardous Waste Disposal and Processing, Stormwater, Water/Wastewater, Site Remediation
John N. Browning
Senior Project Manager
Education: B.S., Civil Engineering, B.S., Mathmatics & Physics, M.S., Environmental Health Engineering
Registration: Professional Engineer: Missouri, Kansas
Professional Experience: Total of 39 years: Public Agency Experience (Municipal) and Private Consulting
Areas of Expertise: Water Resources/ Stream Stability/Wetland Treatment, Solid Waste, Civil/Municipal Engineering
Mikel C. Carlson, R.G.
Senior Geologist
Education: B.S. Geology, M.S. Geology
Registration: Registered Geologist: Missouri, Illinois, Kansas – Permitted Well Installation Contractor: MO
Professional Experience: Total of 29 years: Public Agency Experience (MDNR) and Private Consulting
Areas of Expertise: Geologic/ Hydrogeologic Evaluations, Mining/ Land Reclamation, Solid Waste, Geologic Studies
Bruce A. Dawson
Senior Geotechnical Engineer
Education: B.S., Civil Engineering, M.S., Engineering Management
Registration: Professional Engineer: Missouri
Professional Experience: Total of 36 years: Private Consulting
Areas of Expertise: Geotechnical Engineering, Civil Engineering, Infrastructure Evaluation, Commercial Site Development
Wayne Elliot, E.I.
Civil/Environmental Engineer Intern
Education: B.S. Environmental Engineering
Registration: Engineering Intern Certification: Missouri
Professional Experience: One year, Private Consulting
Areas of Expertise: Mine Reclamation, Hydrology, Stormwater, Water/ Wastewwater, Civil Engineering, Municipal Arboriculture
Ken A. Ewers, R.G.
Environmental Geologist
Education: B.S. Geology, M.S. Hydrogeology
Certifications: Registered Geologist:
Missouri; Permitted Well Installation Contractor: Missouri; OSHA: Hazardous Waste Operations – 40 Hour; Hazardous Waste Operations – 8 Hour Supervisor; Construction Safety and Health – 10 & 30 Hour
Professional Experience: Total of 24
Years: Business & Operations Management (13 years) and Environmental Geology/ Hydrogeology (11 years)
Areas of Expertise: Geologic/Hydrogeologic Evaluation, Field Data Collection (Soil, Groundwater, Hazardous Waste),
Data Reduction, CCR and Solid Waste Groundwater Compliance, Geologic Studies, Groundwater Modeling
Jacob Fitzpatrick, E.I.
Environmental Engineer Intern
Education: B.S., Environmental Engineering
Professional Experience: 1 year:
Public Agency (USGS & MDNR), Private Consulting
Areas of Expertise: Environmental Sampling, Mine Permitting/reclamation, Hydrogeology, Hydrology, Water/ Wastewater
Cole Mengwasser
CADD Technician
Education: B.S., Civil Engineering Technology and Associates in Drafting
Professional Experience: 1 Year Engineering Design, Civil & Environmental Engineering
Areas of Expertise: CADD Technician, Interpreting Construction Plans, Producing CADD Drawings
Gary Pendergrass, P.E., R.G.
Senior Project Manager
Education: B.S., Geology and Geological Engineering; M.S., Geological Engineering
Registration: Registered Professional Engineer: MO and AR; Registered Geologist: MO
Professional Experience: 41 years: Utility Industry, Private Industry and Private Consulting
Areas of Expertise: Site Investigation and Remediation, Karst Engineering, Groundwater Characterization and Monitoring, CCR Compliance, Carbon Sequestration, Geophysical Investigation, Risk Communication.
Jordan “JZ” Upp
Environmental Geologist
Education: B.S., Geology; M.S., Geography, Geology and Planning
Professional Experience: 1 Year Public Consulting
Areas of Expertise: Data Management, Field Work, Produce GIS Deliverables, Report Writing
Marshall Woods
Designer I
Education: B.S., Civil Engineering
Professional Experience: 1 year:
Construction and Private Consulting
Areas of Expertise: Geotechnical and Civil Engineering, Field Work, Groundwater Sampling, Field Data Collection, Water Resources
