Timothy J. Mayotte, Ph.D., P.E.


  • Doctorate in Environmental Engineering
  • Masters Degree in Environmental Engineering
  • Masters Degree in Hydrogeology
  • Bachelors Degree in Geophysics


  • Registered Professional Engineer in IL, IN, MI, OH, and WI
  • Certified Professional Geologist


  • American Society of Civil Engineers American Society of Microbiology
  • American Institute of Professional Geologists


  • Over 30 years of civil/environmental engineering and consulting experience.
  • Since 1986, experienced with litigation support and as an expert witness.
  • Numerical modeling of groundwater/surface water flow and contaminant fate and transport: MODFLOW, RT3D HEC-HMS, HEC-RAS, HydroCAD Site planning.
  • Design of stormwater management and drainage features, including wet and dry ponds.
  • Design of stormwater BMPs.
  • Design of wastewater impoundments.
  • Geotechnical investigations and soil mechanics testing and analyses.
  • Dam safety and inspections. Construction quality assurance and quality control.
  • AutoCAD Civil 3D proficient. Facility decommissioning and demolition management.
  • Brownfield redevelopment planning and assistance. Execution of environmental remedial investigations and feasibility studies.
  • Bench/field-scale treatability studies of biological and physicochemical treatment technologies.
  • Remedial design and remedial action implementation, operation and maintenance.
  • Industrial wastewater treatment design and optimization.
  • Published over 10 technical articles in peer-reviewed journals and trade publications.
  • Teaches college level microbiology, microbiology laboratory and physical science courses.
  • Projects completed in AL, AZ, CA, CO, FL, IA, IL, IN, KS, MA, MI, MS, MO, NJ, NY, OH, OR, PA, TN, TX, UT, VT, VA, WV, WI, WY, Brazil, Canada (BC, ONT), China, Czech Republic, Italy, Mexico.