1. 1
Years of Experience
30 years
Employment History/ Job
Title
CH2M 2006-2016/ Principal
Remediation Engineer
LFR 2004-2006/ Principal
Remediation Engineer
Handex Environmental 2000-
2004/ Corporate Engineering
Manager
Tetra Tech 1987-2000/ Senior
Project Manager, Project Manager
and Project Engineer
Harza Environmental 1986-1987/
Project Engineer
Education
Ph.D. Environmental Engineering,
University of North Carolina –
Chapel Hill, 1986
M.S. Environmental Engineering,
University of Illinois, Urbana-
Champaign, 1982
B.S., Civil Engineering, University
of Puerto Rico - Mayaguez, 1979
Registrations/Affiliations
Licensed Professional Engineer:
Illinois; Colorado; Texas; Iowa;
Florida; New Jersey
Board Certified Environmental
Engineer: Hazardous Waste
Management Certification by the
American Academy of
Environmental Engineers and
Scientists
Certified Groundwater
Professional: Iowa
American Society of Civil
Engineers
American Academy of
Environmental Engineers and
Scientists
National Ground Water
Association
American Water Works
Association
Kostas Dovantzis, PhD, PE, BCEE
Principal Remediation Engineer/Project Manager
18012 Cardinal Ln
Tinley Park, IL 60487
Tel: 708.781.9751
Email: gustiedov@comcast.net
Relevant Experience and Distinguishing Qualifications
Principal remediation engineer/project manager with 30 years of
experience in environmental consulting engineering, waste
management, site assessment and remediation, water resources,
wastewater process engineering, compliance and expert witness
litigation support. I have directed, managed, and performed site
assessments, remedial investigations, feasibility studies, risk
assessments, remedial designs, and remedial system construction,
operation and maintenance, and remedial process optimization. Work
experience includes numerous Superfund, RCRA, LUST, and
voluntary cleanup program sites throughout the United States as well
as sites in South America, Latin America, and Puerto Rico.
Significant achievements are listed below:
• Key contributor in winning $200 million, 10-year re-compete
contract by managing many large, complex, high-visibility
projects whose exceptional performance was commended
repeatedly by clients
• Successfully negotiated the scope of and managed remedial
investigation, design, and construction activities at over 100
contaminated sites in the U.S (oversight of investigation, design,
and construction activities worth approximately $300 million;
performance of remedial investigation, design, and construction
activities worth approximately $10 million)
• Saved clients and other parties approximately $20 million in
remedial investigation and construction costs by developing
innovative, real-time sampling and analysis programs, conceptual
site model development, innovative technology testing, and peer
technical reviews of remedial designs
• Major contributor in growing remedial services consulting
business worth approximately $10 million in South America,
Latin America, and Puerto Rico through excellence in remedial
services delivery, proposal preparation, and presentations.
Major Clients
Industrial/Commercial Clients
• Dow Chemical, DuPont and BASF: As Senior Technical
Consultant and remediation Subject Matter Expert for various
active plants and legacy sites in the U.S. (West Virginia, New
Jersey, Illinois), Canada (Sarnia), Puerto Rico, Latin America
(Mexico), and South America (Brazil, Argentina and Chile),
developed innovative and cost-effective remedial strategies for
sites impacted with DNAPL and LNAPL, and led project teams in
successful completion of investigations, remedial options
evaluations, treatability studies, pilot testing, remedial system
evaluations, monitoring, optimization, and achieving and

2. Kostas Dovantzis, PhD, PE, BCEE
2
maintaining compliance with water discharge and emissions permits.
• British Petroleum, ExxonMobil, Shell, Conoco Phillips, El Paso Energy: Led project teams in
successfully managing and executing various complex remedial projects in Illinois, Indiana,
Michigan, Iowa, New Jersey, Connecticut, Florida, Texas and Colorado; developed cost-effective
remediation strategies for numerous sites (portfolios of retail, bulk terminal, and pipeline facilities)
throughout the U.S.; led project teams in optimizing remedial system performance and achieving and
maintaining compliance with water discharge and emissions permits; led the research and
development of innovative soil and groundwater remediation technologies for treating petroleum
hydrocarbon and oxygenate impacted groundwater; added value to the companies by guiding and
training engineers and hydrogeologists in United States and Australia; guided permitting,
compliance, and field operations personnel; and recruited regional engineering managers.
• Kinder Morgan Liquids Terminals: Carteret, New Jersey and Chicago and Bedford Park, Illinois:
Developed innovative remedial strategy and led the evaluation of cost-effective remedial options for
the Carteret, NJ terminal. Achieved over 15 No-Further-Remediation (NFR) determinations by
Illinois EPA for release incident closures (petroleum, chlorinated, as well as various specialty
chemicals) under the Illinois Site Remediation Program (SRP) and under the State Sites Unit program.
• Union Pacific Railroad Company: Key member of a technical committee tasked with streamlining
the mnagement of LNAPL-impacted sites in various stages of remediation in order to reduce life-
cycle costs and expedite site closure for the Union Pacific Railroad Company. As technology
manager, led and guided project teams at multiple site locations in Michigan, Arizona, and
California.
• Gerdau-Ameristeel, Joliet, Illinois and Perth Amboy, New Jersey facilities: Developed cost-
effective remedial action plans, remedial options and cost estimates for LNAPL-impacted soil at the
Joliet, Illinois facility. Led the development of remedial options and cost estimates for soil and
groundwater impacted with VOCs and arsenic at the New Jersey facility.
Government Clients
• U.S Army Corps of Engineers, Louisville District: Senior Technical Consultant and Independent
Technical Reviewer for multiple USACE sites in Illinois and Indiana.
• U.S. Navy: Senior Technical Consultant and technical leader the preparation of feasibility studies,
conceptual site models, and innovative and cost-effective remedial solutions for sites impacted with
chlorinated VOCs and LNAPL at multiple naval base locations in U.S. (Virginia, California), and
Puerto Rico.
• Grissom Air Reserve Base; Grissom, Indiana: Feasibility study and Corrective Action Plan (CAP) for
soil impacted with jet fuel LNAPL product.
• Hill Air Force Base, Utah: Senior Technical Consultant for feasibility study of groundwater impacted
with chlorinated VOCs at Operable Unit 11 of Hill AFB.
• Vermont Air National Guard; South Burlington, Vermont: QC manager and senior reviewer of 30%
and 90% design of two multiphase extraction systems (MPE).
• U.S. Environmental Protection Agency: Senior Project Manager, Project Manager and Project
Engineer for multiple Superfund and RCRA sites in Indiana (Bloomington), Michigan (Rose
Township and Ossinike), Ohio (Dayton), Minnesota (Twin Cities), Nebraska (Hastings), and Illinois
(Chicago).
• O’Hare Airport Expansion Program, City of Chicago: Achieved Illinois EPA NFR determination
through the SRP program for the Prologis site located on the airport property. Developed cost-
effective sampling and analysis plans for three additional source areas discovered during the O’Hare
runway expansion program.

3. Kostas Dovantzis, PhD, PE, BCEE
3
Presentations and Publications
Dovantzis, K., Baida, L., Ng, G., Barreto, P. and Henderson, J. 2014. Bio-Trap In Situ Microcosm Study for
a Site Contaminated with Chlorinated Organic Compounds. Poster Presentation. IX International
Seminar for Remediation and Redevelopment of Contaminated Sites. Ekos, Sao Paulo, Brazil. October 1
and 2, 2014.
Lee, S., Oren, A.H., Benson, C.H., Dovantzis, K. 2012. Organoclays as Variably Permeable Reactive Barrier
(VPRB) Media to Manage NAPLs in Ground Water. ASCE Journal of Geotechnical and
GeoEnvironmental Engineering, February 2012, pp. 1-13.
Dovantzis, K. 2009. Evaluation of Organoclay Permeable Adsorptive Barrier to Manage DNAPL and
Dissolved PAHs in Groundwater Seepage. Presented at the 16th International Petroleum and Biofuels
Environmental Conference - Houston, Texas, November 4, 2009.
Dovantzis, K., Ebihara, T., and Bauman, B., 2006. Design and Operating Guidelines for Ex-Situ Biological
Treatment of Oxygenate-Impacted Groundwater. Poster presentation at 18th Annual Tanks Conference &
Exposition, Memphis TN, March 20-22.
Dovantzis, K., Marr, T., and Foster, T., 2004. Enhanced In Situ Groundwater Bioremediation of Petroleum
Hydrocarbons and Oxygenates. Presented at the 20th Annual International Conference on Soils,
Sediments and Water, October 18-21, University of Massachusetts, Amherst, Massachusetts.
Dovantzis, K., Fitteron, B., and Brochu, W., 2003. In Situ Remediation of an MTBE and BTEX
Groundwater Plume Using a Full-Scale Oxygen Infusion System. Presented at the National Ground
Water Association Conference (Focus Conference on MTBE – Assessment, Remediation, and Public
Policy), Baltimore, Maryland, June 5-6, 2003.
Kolhatkar, R., Kremesec, V., Dovantzis, K., and Weitz, J., 2003. Pilot Study to Evaluate Effectiveness of
Oxygen Infusion Technology to Bioremediate MTBE and TBA in Groundwater. Presented at the National
Ground Water Association Conference (Focus Conference on MTBE – Assessment, Remediation, and
Public Policy), Baltimore, Maryland, June 5-6, 2003.
Dovantzis, K., Weitz, J., Marr, T., Kolhatkar, R., Kremesec, V., and Archibald, J., 2002. Bioremediation of
MTBE, TBA, and BTEX in a Low Permeability Aquifer Using Pure Oxygen. Platform Presentation at the
West Coast Conference on Contaminated Soil, Water, and Sediment, March 18-21, 2002, San Diego,
California.
Dovantzis, K., Weitz, J., Marr, T., Kolhatkar, R., Kremesec, V., and Ells, S., 2001. Use of an Innovative
UV/Oxidation Technology for Remediation of Petroleum Impacted Groundwater. Poster Presentation at
the National Groundwater Association Conference, November 13-16, 2001. Houston, Texas.
Kolhatkar, R., Dovantzis, K., Weitz, J., and Kremesec, V., 2001. In Situ Remediation of MTBE, TBA, and
BTEX in a Low Permeability Aquifer Using Pure Oxygen. Platform Presentation at the National
Groundwater Association Conference, November 13-16, 2001. Houston, Texas.
Ungs, R., K. Dovantzis, K. Adler, and E. Hammond, 1994. Thermal Treatment of PCB-Contaminated Soils
at a Superfund Site in Rural Michigan. Presented at the 13th International Incineration Conference, May
9-14, Houston, Texas.
Dovantzis, K., K. Adler, E. Hammond, and C. Miron, 1993. Use of Groundwater Treatment Studies for the
Design of a Full-Scale Remediation System at a Superfund Site in Michigan. Presented at the International
Specialty Conference on Pretreatment of Industrial Wastewater, October 13-15, Athens, Greece.
Zeller, N., K. Dovantzis, and W. Ballard, 1992. Application of Rotasonic Drilling at Remedial
Investigation Site. Presented at the 13th Annual National HMCRI Conference.
Thomsen, K., M. Chaudhry, K. Dovantzis, and R. Riesing, 1989. Groundwater Remediation Using an
Extraction, Treatment, and Recharge System. Water Well Journal/Groundwater Monitoring Review.

4. Kostas Dovantzis, PhD, PE, BCEE
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Speitel, G., K. Dovantzis, and F. DiGiano, 1987. Mathematical Modeling of Bioregeneration in GAC
Columns. Journal of Environmental Engineering Division, ASCE, Volume 113, No. 1, pp. 32-48.
Dovantzis, K., 1986. A Mathematical Model of the Interaction between Adsorption and Biodegradation on
Granular Activated Carbon at Low Substrate Concentrations. Doctoral Dissertation. University of North
Carolina, Chapel Hill.
DiGiano, F., K. Dovantzis, and G. Speitel, 1984. Influence of Adsorption on Biofilm Development. M.
Pirbazari and J. Devinny, Editors, Proceedings of ASCE Conference, Environmental Engineering
Division, ASCE Press, New York, 382.
Rittmann, B. and K. Dovantzis, 1983. Dual Limitation of Biofilm Kinetics. Water Research (G.B.), 17, 1727.