Mark Elmendorf

Timothy V. Adams, PG
Principal Hydrogeologist Peter Alvey, PE
Vice President Nancy Anglin, PE
Principal Engineer Paul Armstrong, PE, LSRP
Principal Engineer Harold P. Barber, PE, MBA
Principal Engineer Andrew Baris, PG
Executive Vice President Thomas Biolsi, PG, LG
Principal Geologist Christopher Boron, PG
Principal Geologist Catherine Boston, MPH, DABT
National Director of Human Health Risk Services Kathleen Buxton, PG
Principal Geologist Frank Cherena, PG, LEP, WEDG
National Director of Real Estate Services Deborah A. Chiavelli, PhD
Technical Director Robert F. Chimchirian, PE, LSRP
Principal Engineer Noelle M. Clarke, PE
Principal Engineer Kelly Coulon, PE
Principal Engineer Angela Liang Cutting, PhD, PE, QISP
Vice President KariAnne Czajkowski, Certified Senior Ecologist
Principal Scientist Matthew G. DeMaio, LSRP
Vice President Jennifer W. DiJoseph, PE
Technical Director David G. Dixon, PG
Principal Geologist Justin Donlon, PE
Principal Engineer Peter Downham, LSRP
Vice President Joseph Duminuco, PG
Executive Vice President Mark Elmendorf
Principal Scientist Mauricio H. Escobar, PG
Vice President Jason B. Flagg, PE, CHMM
Technical Director Thomas H. Forbes, PE
Vice President Natalie Fox, CIH, CSP
Principal Scientist Mikhail Fradkin, CIH, CSP
Senior Scientist I Greg Gaines, JD
Technical Director Chase Gerbig, PhD, PE
Principal Engineer Scott Glash, PG
Principal Hydrogeologist Michael Gonshor, PG, LSRP
Principal Hydrogeologist Samantha Goode
Project Manager Emily Goswami, MS, CIH
Technical Director Joshua Graber, CHMM
Principal Scientist Joanna Hall, SHRM-SCP, CCP
Human Resources Director Martin J. Hamper, PG
Director Michael J. Hillebrenner, PE
Vice President of Operations Brian Hobbs, CIH, CSP
Corporate Health and Safety Director Gary R. Horwitch, PE
Technical Director Drew Howard, MEM
Managing Consultant Peter R. Kelso
Principal, Economic & Complex Analytics Wahid S. Khan, PE, LSRP
Principal Engineer Brian Klaus, LSP
Senior Geologist I Jay Klein, PG
Vice President Robert Kovacs, PG, LSRP
Principal Scientist Justin Kowalkoski, PG, LSRP
Principal Hydrogeologist Michael S. Kozar, PG, LSRP, LRS
Operations Manager Michael Lesakowski
Vice President Larry Lew, PhD, PG
Principal Geologist Adam H. Love, PhD
Vice President Joseph M. Luty, PE
Technical Director Mary H. Macy
Chief Financial Officer Michael Marsden, PG, CHg
Principal Hydrogeologist Gregory D. Martin, PG, LSRP
Vice President Paul Martorano, PE
Technical Director Richard Maxwell
Principal Geologist Bryan Mayback
Technical Director Charles J. McGuckin, PE
Vice President Monica McHugh, PG
Technical Director Lawrence McTiernan, PG, LSP
Principal Hydrogeologist Nancy Nevins, PG, LSP
Principal Geologist Amy Elizabeth O’Connell
General Counsel Thomas J. Patterson, PE
Principal Engineer Christopher Proce, PG, CSP
National Director of Energy Services Jaydeep Purandare, PE
Principal Engineer Majda Rabah, PhD, PE, LSRP
Principal Engineer Omar Ramotar, PE
Principal Engineer Sara S. Redding, MS, PG, LSRP
Principal Hydrogeologist Ian Reed
Vice President Lori E. Riker, PE
Principal Engineer Jon Rohrer, PG, CHg
Principal Hydrogeologist Paul Roux
Founder Michael Roux, PG
Director Marc C. Scarcella
Vice President Sin Senh, PG
Chief Executive Officer Mir SeyedAbbasi, PhD, PE
Technical Director Jay M. Shipley, PE
National Director of Public Sector & Industrial Services Dan Sihksnel, MBA
Managing Director of Business Development and Marketing Kathryn Sommo
Technical Director Ryan Stifter, MS
Principal, Economic & Complex Analytics Jessica Taylor, PG
Principal Hydrogeologist Jerry J. Tolosko, PG, LSP
Vice President Kirsteen Toro
Chief Operations Officer Robert P. Trail, LSRP
Technical Director George A. Tyers, PG
Principal Hydrogeologist Anthony C. Ward, PG
Vice President Edward J. Weagle, LSP, LEP, CHMM
Principal Geologist Paul W. Werthman, PG
Technical Director Bjorn Wespestad, PE
Principal Engineer Jeff Wills, PG
Principal Geologist Julia K. Wilson, PhD, PG, LPST CAPM
Principal Geologist Andy Zdon, PG, CEG, CHG
Technical Director

Let's Connect

Stay up to date and get notified with important Roux updates.


    This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
    Get In Touch

    By using our website, you agree to the terms of our Privacy Policy

     ×