
Our People
At EKI, we strive to foster a culture that is built on trust, respect, teamwork, creativity, inclusivity, and empowerment.
Our staff is made up of high-performing, dynamic professionals from a broad range of disciplines including environmental, civil, and chemical engineering; geology; hydrology and hydrogeology; chemistry; environmental science; and data engineering and science. This unique blend of technical expertise allows us to deliver long-term value to our clients and projects. Being employee-owned, our collective success is driven by a shared sense of dedication and commitment.
Retention and Growth
At EKI, we prioritize retaining key employees by investing in their professional development, growth, job satisfaction, productivity, and work-life balance. Our leadership and senior project teams bring decades of experience in providing environmental, water, wastewater, and water resources services.
More than 15% of our staff have been with EKI for more than 10 years, which is something we take tremendous pride in. This continuity promotes strong teamwork and collaboration that enables us to develop innovative, efficient, and cost-effective solutions tailored to our clients’ technical, financial, and regulatory demands. Our low staff turnover also supports the formation of long-term, trusted relationships with our clients.
Information about our Board of Directors, Officers, Principals, and Senior Staff is provided below.
Leadership
Michelle K. King, PhD
President, Board of Director
Anona Dutton, PG, CHg
Chief Executive Officer, Board of Director
Christine Wasko
Chief Operating Officer
Michael Steiger, PE
Executive Vice President, ESG
Andree (Johnson) Lee
Executive Vice President, WRE
Edward P. Conti, PG, CEG, CHg, QISP/ToR
Vice President and Principal Geologist
John T. DeWitt, PE
Vice President
Earl James, PG
Vice President, Board of Directors
David Melycher, LSP, LEP
Vice President, East Coast Regional Director, Board of Director
Vera Nelson, PE
Vice President
Wade Oliver, PG
Vice President, Regional Director
Andrew N. Safford, PE
Vice President
Jenny Gain, PE, QSD/P
Principal, One Water Practice Area Director
Steve Figgins
Principal, Irvine Regional Leader
Christopher Ingalls
Principal, Irvine Regional Director
Jonathan P. N. Sutter, PE
Principal, Engineering Practice Area Director, Board of Director
John Bennett, PG, QISP
Principal Geologist
Nathan Epler, PhD, PG
Principal Hydrogeologist
John Fio
Principal Hydrogeologist, Groundwater Practice Area Director
Deepa Gandhi, PE
Principal Engineer
Paul B. Hoffey
Principal Environmental Scientist
Joy Su, PE
Principal Environmental Engineer
David Tietje, PE, MBA
Principal Engineer
David Umezaki, PE
Principal Engineer
Senior Staff/Project Managers
Ayman Alafifi, PE, PhD
Supervising Water Resources Engineer and Innovation Leader
Tyler F. Colyer, PE
Supervising Civil Engineer
Claudia A. Cuadrado, PE
Supervising Environmental Engineer
Dawn Flores
Supervising Water Resources Planner
Logan Hansen, PG
Supervising Geologist
Wesley Henson, PhD
Supervising Hydrogeologist
Christopher S. Heppner, PhD, PG
Supervising Hydrogeologist
Wai Kwan, PhD, PE
Supervising Environmental Engineer
Hui Li, PE
Supervising Environmental Engineer
Amir Mani, PhD, PE
Supervising Water Resources Engineer and Groundwater Management Leader
John Montgomery-Brown, PhD
Supervising Engineer/ Chemist
Tim Myjak, LEP
Supervising Environmental Scientist
Kendra Olmos, EIT
Supervising Water Resources Engineer
Dave Sherman, LSP, LEP
Supervising Geologist
Ying Song, PhD, PE
Supervising Environmental Engineer
Mitchell Wiest, PG, LEP
Supervising Hydrogeologist
Alexandra C. Aranha, PE, CPESC, QSP/QSD
Senior Environmental Engineer
Brad Arnold, PE, BC.WRE
Senior Water Resources Engineer and One Water Leader
Jacyln Catania
Senior GIS/ Database Analyst
Meredith Durant, PE
Senior Environmental Engineer
Donna Kask
Senior Environmental Scientist
Aaron Lewis, PE, PG
Senior Hydrogeologist and Groundwater Modeling Leader
Christina Lucero, PG
Senior Hydrogeologist and Recruiting Leader
Jose Mario Osorio
Senior GIS/ Database Analyst
Roberta P. Prohaska
Senior Environmental Data Manager
Jeff Shaw, PG, CHg
Senior Hydrogeologist
Glen D. Stefaniak, CPG, LEP
Senior Hydrogeologist
Frank Stillo III, PhD
Senior Scientist
Huda Aslam, LEED GA
Environmental Engineer
Corey M.G. Carpenter, PhD, PE, QSD/P
Environmental Engineer
Nigel Chen, PhD, PE
Environmental Engineer
Emily Cook, PhD
Environmental Engineer
Vanessa De Anda
Water Resources Planner
Priscilla DeJesus
Geologist
Ryan Ford, PG
Geologist
Kristyn Lindhart
Hydrogeologist
Robert W. Plybon, PE
Environmental Engineer
Alice Robinson, PE
Environmental Engineer
Tina Wang, PE
Water Resources Engineer
Susan Xie, PE
Water Resources Engineer
At EKI, we believe in values that define our work and company culture:
Integrated Solutions • Responsiveness • Ingenuity • Quality • Results