CURRICULUM VITAE
Timothy J. Mayotte, Ph.D., CPG, CP, P.E.
EDUCATION
Doctor of Philosophy, Environmental Engineering, Michigan State UniversityMaster of Science, Environmental Engineering, Michigan State UniversityMaster of Science, Hydrogeology, Western Michigan UniversityBachelor of Science, Geophysics, Michigan State UniversityCERTIFICATION
Registered Professional Engineer:Illinois (Lic. No. 062-050511)Indiana (Lic. No. PE19600532)Michigan (Lic. No. 41981)Ohio (Lic. No. E-60381)Wisconsin (Lic. No. 31738)Certified Professional Geologist (AIPG CPG No. 9457)Michigan Qualified Underground Storage Tank Professional (CP No. 619)AFFILIATIONS
American Society of Civil EngineersAmerican Society of MicrobiologyEXPERIENCE
Mayotte Design & Engineering, P.C., Lansing, Michigan
President
Provides broad range of environmental engineering services to industrial and commercial clients. Projects include engineering modification of industrial wastewater treatment processes, characterization and remediation of environmental impacts associated with solvent release sites, management of RCRA closure activities, and assistance with brownfield redevelopment projects. Services marketed by MD&E include:
- Industrial Wastewater Management & Treatment Solutions
- Waste Minimization and Material-Loss Prevention Solutions
- Characterization of Environmental Impacts
- Characterization of Fate & Transport of Environmental Pollutants
- Management & Remediation Strategies for Environmental Impacts
- Natural Resource Damage Assessments
- Environmental, Health & Safety Compliance Services
- Litigation Support and Expert Witness Testimony
- Due Diligence Services for Property Transactions
- Support of corporate acquisitions/divestitures
- Brownfield Redevelopment Assistance
MWH Americas, Inc. (formerly Montgomery Watson Harza), Novi, Michigan
Principal Engineer
Responsible for technology innovation and application for MWH remediation projects world-wide. Was also responsible for the development and management of engineering staff and services for the Detroit office industrial practice. Served as service manager for several key corporate clients including Whirlpool, Lear, Hayes Lemmerz International, Novartis-Gerber, Federal Mogul and Masco Corporation.
Michigan State University/
Northern Environmental Technologies, Inc., East Lansing, Michigan
Technical Director - Engineering
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).
Golder Associates, Lansing and Dearborn, Michigan
Manager of Michigan Operations
Founded and was responsible for the technical and administrative management of Golder’s Michigan Operations and sponsorship of several corporate clients. Project-level responsibilities included: evaluation and design of industrial wastewater treatment programs; management and execution of waste minimization studies; regulatory compliance audits; facility decommissioning and demolition projects; due diligence efforts; remedial investigations/feasibility studies; and remedial design and remedy implementation under CERCLA and Part 201 of Michigan Act No. 451. After opening as sole proprietor in the summer of 1994, the Michigan Operation grew to a staff of 28 engineers and scientists in two offices (Lansing and Dearborn) and consistently returned a net income in excess of 15% of fees during 1996-1999. Named to The Environmental Business Report, Client Service A-Team in 1997.
Brown & Root Environmental (formerly NUS Corporation), Holt, Michigan
District Manager
Managed the Brown & Root Environmental (BRE), Michigan District Office (MDO). Responsibilities included: supervision of 18 professional and clerical staff members; formulating and pursuing business development goals; preparing capital budgets; procurement of personnel, equipment and supplies; oversight and management of major clients and quality assurance programs; and personnel development. Acted as Project Manager, Principle Engineer and/or Hydrogeologist for commercial remedial design projects, and for remedial investigations/feasibility studies conducted pursuant to Michigan Act 307 and CERCLA/SARA. Performed groundwater flow and contaminant transport modeling for scoping investigations, risk assessments, and remedial design conceptualization and evaluation utilizing numerical codes such a MODFLOW, PLASM, RANDOM WALK, USGS-MOC, SUTRA, MT-3D, PATH3D, FLOWPATH, and various analytical solutions.
Program Manager and Group Supervisor
Prior to the fall of 1991, managed six staff members comprising the Geotechnical Group of the BRE, MDO. Responsible for the technical development and oversight of staff, maintaining group billability objectives and administering performance evaluations. Served as Program Manager for evolving commercial contracts with General Motors and Amoco Oil Company. Received the Amoco Detroit District Contractor of the Year Award for services rendered during 1990 and 1991.
RMT, Incorporated, Grand Ledge, Michigan
Hydrogeologist
Conceived technical proposals for several RCRA facility investigations and corrective actions. Industries under investigation included: an abandoned facility used for fertilizer blending and pesticides storage; foundries owned by automotive manufacturers targeted for closure; a plastics fabrication plant, and a bulk petroleum storage terminal. Designed remediation systems for groundwater contamination associated with LUST’. Design projects included groundwater extraction systems with either total fluids removal or downhole product separation, and wastewater treatment by carbon adsorption and air stripping. Participated in the pre-acquisition audit to assess the design integrity of a sanitary landfill in eastern Michigan.
NUS Corporation, Lansing, Michigan
Project Manager/Hydrogeologist
Coordinated the development and execution of remedial investigations and feasibility studies. Specialized in the quantitative analyses of hydrogeologic and geotechnical problems through the application of numerical models.
EXAMPLES OF PROJECT EXPERIENCE
Bioaugmentation Research, Schoolcraft, Michigan
Participated in research focused on evaluating the migration characteristics and enhancing the growth of certain microbial strains in aquifer systems to promote in-situ biotransformation of carbon tetrachloride. The research was part of a multi-university (MSU and the University of Michigan) study to improve the effectiveness and implementability of controlled bioaugmentation for remediating large-scale and multi-contaminant complex aquifer contamination problems. Participation involved bench and field-scale research to evaluate microbial viability and transformation capacities under site-specific conditions. Served as a member of the research design team.
Remedial Design, GM-Powertrain, Flint, Michigan
Project Manager and Principal Engineer for the design of a multi-stage water treatment system to remediate groundwater impacted by coolants and hydraulic fluids containing PCBs. 24-hr pump testing, groundwater flow and contaminant transport modeling, and bench and pilot-scale testing were performed to optimize the design of a collection and treatment configuration consisting of emulsion breaking, advanced oxidation (UV/photolysis), oxidation/cosolvency/precipitation, granular activated carbon, and air stripping.
Industrial Pollution Prevention, Hayes Lemmerz International, Howell, Michigan
Conceived and executed a pollution prevention and water management study for an aluminum auto parts fabricating facility. Evaluated a series of manufacturing processes and formulated recommendations for enhancing water and energy use and minimizing wastewater production and treatment.
Facility Decommissioning/Demolition, Ford Motor Company, California and Michigan
Conducted and supervised survey activities and regulated materials inventory development for the demolition of multiple facilities owned by Ford Motor Company. Developed specifications, in CSI format, to direct site decommissioning and demolition activities, including, but not limited to, asbestos and lead abatement and PCB removal. Monitoring of site activities is performed to confirm materials are handled and removed in accordance with applicable regulations.
Compliance Audit, Delphi Automotive, Flint, Michigan
Performed a comprehensive audit of the regulatory compliance status of a 2,500,000 ft2, multi-process manufacturing facility. The audit focused on both environmental and health and safety issues, and was conducted concurrent with phase I and II environmental assessment activities at the facility.
Subtitle D Facility Groundwater Monitoring and Statistical Analysis, Bucyrus, Ohio
Managed a groundwater detection-monitoring program for a solid waste management facility owned and operated by a County in Central Ohio. The program included performing semi-annual and verification sampling activities and the statistical analysis of groundwater quality data, as required by rules promulgated under the Ohio Solid Waste Management Act.
SITE Demonstration, Electro Voice, Inc., Buchanan, Michigan
Project Manager and technical advisor for an in-situ bioremediation project performed for a major audio equipment manufacturer in cooperation with the Risk Reduction and Engineering Laboratory of the United States Environmental Protection Agency (EPA). The biorestoration design involved the delivery of appropriate terminal electron acceptors and nutrients to unsaturated soils and buried sludge contaminated with chlorinated aliphatic hydrocarbons. The EPA evaluated the design and implementation of the technology during the initial year of operation under the Superfund Innovative Technology Evaluation (SITE) program. Responsible for the design, construction, and operation and maintenance of the demonstration system, as well as the development of technology assessment procedures to ensure optimum performance of the bioenhancement process. To facilitate prompt and accurate evaluation of the effects of system manipulations, developed and supervised an in-house biological treatability testing laboratory.
Design of Closed-Loop Bioremediation System, Kalamazoo County, Michigan
Designed and constructed groundwater collection, ex-situ chemical and biological mixing and delivery systems, and a multi-level groundwater monitoring network for a novel in-situ bioaugmentation process to remediate chlorinated aliphatic hydrocarbons. Reactor system design included specifications for and fabrication of specialized tankage and mixing devices, chemically-compatible plumbing and piping systems, groundwater collection and inoculum, nutrient and substrate delivery pumps, and an integrated power control unit and switching mechanisms. The multi-level groundwater monitoring system (e.g., dialysis cells) promotes passive acquisition of subsurface geochemical and microbial data. An objective of the design was to develop a prototype for a modular system that can be constructed quickly and economically, and will require minimal operational control. Recent developments include installation of vertically-injected barrier walls for creation of funnel and gate reactor cells and injection of permeable, timed-released substrate material for enhancing the in-situ biological processes. Performed groundwater modeling to assess hydrodynamics created by funnel walls.
Landfill Dike Investigation and Feasibility Study, Wayne County, Michigan
Managed a subsurface investigation to verify the existence and construction specifications of the cutoff wall and underdrain system at a landfill in southeastern Michigan. In addition, reviewed and evaluated data and information produced by other investigators to assess the potential for past, current, or future releases of leachate from the landfill into adjacent groundwater, and to examine options for the control of leachate head levels within the facility. The results of the subsurface investigation were used to develop design assumptions for repair of the cutoff wall and facilitate a feasibility analysis focused on evaluating the efficacy of various options that may be implemented to accomplish the repairs, including natural clay dike construction, slurry wall, jet-grouting, soil saw, sheet piling, geomembrane curtains, and several groundwater and leachate level control procedures.
Client Sponsor, Whirlpool Corporation
Served as Golder’s Sponsor and Program Manager for their Master Services Agreement with Whirlpool Corporation. Projects included due diligence activities and environmental contamination investigations and remediation efforts conducted throughout North and South America, Asia and Europe.
Industrial Treatment Sludge Management, Bristol-Meyers, Zeeland, Michigan
Developed a solid waste management plan for a food processing wastewater treatment facility in western Michigan. The plan specified procedures for the management of waste-treatment residuals through the application of sludge to agricultural fields.
Treatment System Design, GM – Powertrain, Flint, Michigan
Developed and coordinated the execution of an experimental plan for the bench-scale evaluation of activated carbon (both powdered and granular forms) for removing PCBs from groundwater recovered at an aged automotive parts fabrication plant. The tests were to provide sufficient data to facilitate modeling of adsorption processes in various reactor configurations to optimize the design of the full-scale treatment system. The conceptual design developed included oil-water separation by acidification and coalescing filtration, particulate filtration using a continuous feed, self-cleaning, sand filter, and carbon adsorption in two, series staged, back-washable and disposable GAC columns.
Expert Witness Testimony, Kalamazoo County, Michigan
For four years, served as an expert witness for the Michigan Attorney’s General Office in support of litigation undertaken in response to enforcement actions. Testified in depositions and court regarding contaminant fate and transport issues and groundwater remediation activities. Most recently, performed contaminant fate and transport modeling activities to assess proposed cleanup durations, and examined and provided consultation to client regarding the efficacy of treatment alternatives to remediate hexavalent chromium, arsenic, and chlorinated solvents in groundwater. Efforts included providing comment on and options for bench and pilot-scale evaluation of chemical fixation procedures, and air sparging.
Program Manager, Amoco Oil Company sites across Upper US
Served as Program Manager for a multi-site, leaking underground storage tank (LUST) management contract with Amoco Oil Company. Responsible for technical oversight and quality assurance of site assessments, hydrogeologic investigations, tank removals, and remedial activities associated with over 30 LUST sites. Proposed and supervised the development of management plans for several districts of Amoco nationwide whereby liability risks associated with over 300 facilities were identified and prioritized. Coordinated manpower and maintained administrative efficiency within the program, which included approximately $1,200,000 in awards.
Quality Coordinator, Canadian National (CN) Railroad
Served as Central Quality Coordinator for Golder’s Master Services Agreement with Canadian National Railroad. 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. Since 1997, Golder also completed facility inventories and asbestos surveys within abandoned rail yard buildings in Michigan. Also managed full-scale facility decommissioning/demolition efforts and implemented soil and groundwater remediation activities at CN sites across the US. Performed site assessment and drainage studies at major rail yard and intermodal facility in Memphis, Tennessee.
Compliance Audit Program Coordinator, Ford Auto Dealerships across US
Designed and managed a program to perform compliance audits at dealership facilities owned in part by a major automobile manufacturer. A total of 175 dealerships throughout the contiguous United States participate in the audit program. Dr. Mayotte was responsible for developing the audit protocol for the participating dealerships and for reviewing work product produced during implementation of the program.
CERCLA Landfill Closure, Kalamazoo, Michigan
Project Manager for a CERCLA-driven remedial design for the closure of a landfill in Kalamazoo, Michigan. Project elements included: additional pre-design studies to characterize the hydrodynamics and contaminant distributions in affected aquifer systems; design of a hazardous waste cap consistent with the requirements Michigan Natural Resources and Environmental Protection Act No. 451, Part 111; design of a groundwater collection and treatment system; and representation of the PRP group during meetings with the U.S. EPA and Michigan Department of Environmental Quality.
RCRA Closure/Voluntary Action Plan, Defiance, Ohio
Developed a RCRA closure strategy for an abandoned metal parts heat treatment facility. The closure strategy entailed working with local government agencies and the facility owner to rapidly close a hazardous waste management unit, consisting of a subgrade vault that contained cyanide and barium (D005) laden wastewater, and securing funding for site remediation under the Ohio Voluntary Action Plan through the Clean Ohio Revitalization Fund.
In-Situ Redox Manipulation Treatability Testing and Design, Manistee, Michigan
Designed and executed a four-phase laboratory study to assess the efficacy of and develop design specifications for an in-situ redox manipulation strategy to reduce hexavalent chromium in vadose zone soils to less soluble and less toxic trivalent forms. The chromium contamination resulted from a lengthy history of plating operations at a facility located in close proximity to the Manistee River in western Michigan. The lab tests entailed the simulation of in situ redox manipulation in a series of columns packed with impacted site soil. In-situ oxidation-reduction potentials were altered using sulfur-based reagents mixed in measured quantities with site groundwater. Reductant-amended solutions were delivered to the soil columns in such a way as to simulate periodic infiltration through the unsaturated soils at the site. Reductant loadings and frequencies have been prescribed for the removal by fixation of an optimal mass of chromium per reducing equivalent and delivery volume.
EH&S Compliance Evaluations, GE/NBC, Los Angeles, Boston, Newark
Participated in multi-site environmental, health and safety compliance evaluation program to support the acquisition of Universal Studios by General Electric/NBC. Efforts required the inspection and evaluation of site conditions and operations at network studios, film storage facilities and motion picture studios and adventure/theme park.
State-Funded Remedial Investigations/Feasibility Studies/Remedial Designs
Schoolcraft, Michigan
Served as Project Manager for a remedial investigation/feasibility study aimed at identifying parties responsible for multiple groundwater contamination plumes (organic and inorganic) affecting a prolific, unconfined, glacial outwash aquifer in a small town in southwestern Michigan. Contaminants included wastes from: processes associated with an automotive component manufacturing facility; a wood treatment and preservation plant; and a grain storage and distribution operation. Was responsible for the development of all project deliverables, and conducting and supervising data acquisition efforts. Supervised the development and evaluation of remedial alternatives identified as applicable to the waste matrices at the site. Developed remedial action plans for selected remedies. Represented the State of Michigan in public meetings and in legal support activities for the Michigan Attorney General's Office. Project budget was $1,050,000.
Richland, Michigan
Project Manager for a remedial investigation/feasibility study of soil and groundwater contamination resulting from plastic fabrication and plating practices, and discharges of process materials to unlined lagoons. During the scoping of the study, a comprehensive review of chemical inventories and the manufacturing process utilized by the PRP led to the identification of several contaminants and source areas previously unknown. Project Involved modeling of the affected hydrogeologic environment (layered aquifer systems) to evaluate impacts of hexavalent chromium, nickel, halogenated and non-halogenated aliphatic hydrocarbons and various acids on the aquifer systems, and to evaluate the implementability of various remedial alternatives. Project budget was $1,300,000.
Whitehall, Michigan
Project Manger for a remedial investigation/feasibility study of an abandoned foundry facility in western Michigan. Groundwater in an unconfined outwash aquifer was contaminated primarily with casting wastes and casting sand binding agents. Was responsible for the supervision and technical review of site work. Responsible for the design of interim groundwater remediation measures, including collection of affected groundwater through recovery wells, and ex-situ treatment via air stripping and activated carbon. Budget allocation was $750,000.
Level-of-Effort Contract – Lead Engineer/Hydrogeologist
Served as Principal Hydrogeologist for the technical proposal associated with a State of Michigan "Level of Effort" contract (circa 1989). Technical review scenerio involved identifying the extent and isolating the sources of multiple organic and inorganic groundwater contamination plumes impacting a municipal water supply consisting of a three-layer aquifer system. Was responsible for presenting and defending proposed technical and cost recovery strategies. Brown & Root Environmental (then Halliburton NUS Environmental Corporation) was ranked first of six national consulting firms selected for contracts. Performed and coordinated the development of design specifications and operation and maintenance plans for the implementation of remedial technologies including, but not limited to, soil vapor extraction, in-situ air sparging, air stripping, granular activated carbon, filtration, ion-exchange, advanced precipitation, enhanced bioremediation, and advanced oxidation processes.
Research and Development, Remote Methodolgies for Plume Delineation
Conducted research to develop and optimize a soil gas sampling and analytical method for detecting certain halogenated aliphatic compounds in unconfined granular aquifers. Study involved the design of a comprehensive data acquisition program, including soil gas, water quality, and soil sampling to identify statistically significant correlations between sources contributing vapors to the vadose zone and the results from the analyses of soil gas samples. The technique was used to successfully define sources (residual product), and track the general migration of plumes of the target constituents. Data were also used to pin point DNAPL accumulations.
Method Development, Soil/Groundwater Sampling and Analysis
In 1990, coordinated the development of drilling and field analytical procedures for the acquisition of depth-specific groundwater quality and soil samples using a hollow-stem auger rig and gas chromatography instrumentation owned and operated by the Brown & Root Environmental, Michigan District Office.
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Mayotte
Design &
Engineering
