Dr. Timothy J. Mayotte

Timothy J. Mayotte joins Northern Environmental as a Technical Director - (06/29/00)
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said Tim Mayotte.Technical Director for Northern's Eastern Region and Project Manager for the research support activities.
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Timothy J. Mayotte joins Northern Environmental as a Technical Director - (06/29/00)

Timothy J. Mayotte, P.E. joins Northern Environmental from his position as Manager of the Michigan Operations from Golder Associates, Inc.In his new role, Mr. Mayotte will serve as a Technical Director responsible for developing and advising on strategies from the remediation of contaminated environmental media.He will also be involved with enhancing and promoting Northern's technical capabilities in the Eastern Region, including Michigan, Illinois, Indiana, and Ohio.Mr. Mayotte brings to Northern over 15 years of engineering and environmental consulting experience.He holds degrees in geophysics, hydrogeology, and environmental engineering, and is a Registered Professional Engineer (IL, IN, MI, OH, WI) and Certified Professional Geologist.

Currently, Mr. Mayotte is participating in a multi-year research effort funded by the State of Michigan.These studies are focused on developing biostimulation and bioaugmentation strategies for in-situ remediation of plumes of groundwater contamination consisting of mixtures of chlorinated solvents and toxic metals.The research, conducted in collaboration with investigators from Michigan State University, Stanford University, and the National Science Foundation's Center for Microbial Ecology (NSF-CME), is also focused on improving the understanding of factors affecting microbial kinetics in the subsurface and enhancement of models currently used in the aquifer systems.

Prior to joining Northern, Mr. Mayotte served as a member of the design team for a bioaugmentation process that employs alkaline niche adjustment and controlled inoculation of aquifer materials with Pseudomonas sp. strain KC to rapidly mineralize carbon tetrachloride.In this role, Mr. Mayotte worked closely with researchers from Michigan State University and NSF-CME to design and execute a succession of bench- and field-scale demonstrations of the technology.

Mr. Mayotte has also managed successful applications of bioenhancement techniques to cleanup chlorinated solvents, BTEX and PNAHs, including a Superfund Innovative Technology Evaluation (SITE) demonstration of the SVVS® process at the Electro-Voice site in Buchanan, Michigan.

Contact: Timothy J. Mayotte, Ph.D., CPG, P.E.

Timothy J. Mayotte, Ph.D., P.E.Owner/President
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Tim Mayotte is the President of Mayotte Design & Engineering, P.C. (MD&E) based in Lansing, Michigan.MD&E is a civil and environmental engineering consultancy that was formed in 2002 and assists commercial and industrial clientele across the US.MD&E offers a variety of services, specializing in the design and engineering of treatment solutions for wastewater and contaminated environmental media.

Prior to forming MD&E, Dr. Mayotte was a Principal Engineer for MWH Americas specializing in the characterization and remediation of sites impacted with petroleum hydrocarbons and chlorinated solvents.He holds degrees in geophysics, hydrogeology, and environmental engineering, and is a Registered Professional Engineer and Certified Professional Geologist with over 19 years of experience in environmental consulting.Dr. Mayotte's expertise is in fluid flow and transport modeling, and the design/optimization of biological and physicochemical treatment systems.

As a Principal Engineer with MWH, Dr. Mayotte was responsible for providing technical and management support for special projects, including investigations and remedial actions associated with subsurface impacts by chlorinated organic compounds and dense non-aqueous phase liquids (DNAPLs).Dr. Mayotte also participated in a multi-disciplinary research program focused on developing biostimulation and bioaugmentation strategies for in-situ remediation of plumes of groundwater contamination consisting of mixtures of chlorinated solvents and heavy metals.The research, conducted in collaboration with investigators from Michigan State University, Stanford University, and the National Science Foundation's Center for Microbial Ecology, was also focused on improving the understanding of factors affecting microbial kinetics in the subsurface and optimization of numerical models to evaluate the natural attenuation of organic contaminants in aquifer systems.

Prior to joining MWH, Dr. Mayotte founded and was Manager of the Michigan Operations of Golder Associates Inc., which grew to include 30 engineers and scientists within offices in Lansing and Dearborn.In addition to developing and managing clientele and a diverse range of services during his tenure with Golder, Dr. Mayotte served as a member of the design team for a bioaugmentation process that employs alkaline niche adjustment and controlled inoculation of aquifer materials with Pseudomonas sp. strain KC to rapidly mineralize carbon tetrachloride.In this role, Dr. Mayotte worked closely with researchers from Michigan State University and the NSF Center for Microbial Ecology to design and execute a succession of bench- and field-scale demonstrations of the technology.

Dr. Mayotte has also managed successful applications of bioenhancement techniques to cleanup chlorinated solvents, BTEX and PNAHs, including a Superfund Innovative Technology Evaluation (SITE) demonstration of the SVVS® process at the Electro-Voice site in Buchanan, Michigan.He has conducted numerous presentations and seminars on environmental remediation topics, including serving as an instructor of remediation applications and design for Western Michigan University's Hydrogeology Field Camp during 1995-97.

During the tenure of his career, Dr. Mayotte has completed projects in: Arizona; California; Connecticut; Illinois; Indiana; Iowa; Massachusetts; Michigan; Mississippi; Nevada; New Jersey; Ohio; Tennessee; Texas; Vermont; West Virginia; Wisconsin; Wyoming; British Columbia; Ontario; Quebec; Brazil; China; the Czech Republic; and Italy.
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Through these experiences, Dr. Mayotte has developed numerous hydraulic profiles and volumetric and mass flux balances for groundwater and industrial wastewater treatment systems comprised of multiple unit operations.

Dr. Mayotte also managed a nationwide compliance auditing and infrastructure evaluation program for Ford Motor Company Dealership Development facilities throughout the US.He and other program participants were routinely required to evaluate drainage and wastewater treatment systems at these facilities, including the inspection of drainage patterns, the appropriateness and conditions of drains, the conditions of subgrade conveyances, and the sizing and operational integrity of subgrade (gravity driven) sand and oil/water separators.Conveyance inspections typically included: simple water balances; smoke testing; or track-mounted video taping of drainage lines to identify the locations of breaches, clogs or potentially problematic areas.

In-Situ Remediation Research & DevelopmentDr. Mayotte's research and development activities have focused on the following in-situ biological and physicochemical remediation topics and issues:
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Throughout his career, Dr. Mayotte has provided peer and expert evaluation of hydrodynamic and geochemical data to elucidate the fate and transport of heavy metals in a variety of soil types and conditions.

Dr. Timothy J. Mayotte, P.E.Owner/PresidentCell: (517) 388-2623Email: tjm@mayottedesign.com

Timothy J. Mayotte, Ph.D., CPG, CP, P.E.
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Dr. Mayotte's primary role entailed participation in multi-disciplinary research funded by the State of Michigan. These studies were focused on developing biostimulation and bioaugmentation strategies for in-situ remediation of plumes of groundwater contamination consisting of mixtures of chlorinated solvents and heavy metals. The research, conducted in collaboration with investigators from Michigan State University, Stanford University, and the National Science Foundation's Center for Microbial Ecology, also focused on improving the understanding of factors affecting microbial kinetics in the subsurface and enhancement of models currently in use to evaluate the natural attenuation of organic contaminants in aquifer systems. As Technical Director for Northern, Dr. Mayotte was responsible for providing technical and management support for special projects, including investigations and remedial actions associated with subsurface impacts by chlorinated organic compounds and dense non-aqueous phase liquids (DNAPLs).
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During 1997 alone, Golder staff under Dr. Mayotte's direction completed 67 Phase I Environmental Site Assessments (ESAs) and 54 Phase II ESAs for properties within Illinois, Indiana, Ohio, Michigan, Vermont, and Connecticut.
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Dr. Mayotte was responsible for developing the audit protocol for the participating dealerships and for reviewing work product produced during implementation of the program.

Dr. Timothy J. Mayotte, P.E.