Deborah A. Chiavelli, PhD

Timothy V. Adams, PG
Principal Hydrogeologist
Peter Alvey, PE
Vice President Principal Engineer
Paul Armstrong, PE, LSRP
Principal Engineer
Andrew Baris, PG
Executive Vice President Principal Hydrogeologist
Thomas Biolsi, PG, LG
Principal Geologist
Catherine Boston, MPH, DABT
Principal Scientist Risk Assessor
Thomas Buggey, PG, LSRP, LRS
Vice President Principal Hydrogeologist
Frank Cherena, PG, LEP
Vice President Principal Geologist
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 Principal Engineer
KariAnne Czajkowski, Certified Senior Ecologist
Principal Scientist
Matthew G. DeMaio, LSRP
Vice President of Operations Principal Scientist Operations Manager
Jennifer W. DiJoseph, PE
Technical Director
David G. Dixon, PG
Principal Geologist
Peter Downham, LSRP
Vice President Principal Scientist
Joseph Duminuco, PG
Executive Vice President Principal Hydrogeologist
Mark Elmendorf
Principal Scientist
Nathan Epler, PhD, PG, LEP
Principal Hydrogeologist
Mauricio H. Escobar, PG
Vice President Principal Geologist
Natalie Fox, CIH, CSP
Principal Scientist
Mikhail Fradkin, CIH, CSP
Senior Scientist I Industrial Hygienist
Chase Gerbig, PhD, PE
Principal Engineer
William Gilchrist, PG, LSRP
Principal Hydrogeologist
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
Meredith Harris, PE, LSRP
Principal Engineer
Michael J. Hillebrenner, PE
Vice President of Operations Principal Engineer Operations Manager
Brian Hobbs, CIH, CSP
Corporate Health and Safety Director Principal Scientist
Drew Howard, MEM
Managing Consultant
Peter R. Kelso
Principal, Economic & Complex Analytics
Wahid S. Khan, PE, LSRP
Principal Engineer
Brian Klaus
Senior Geologist I
Jay Klein, PG
Vice President Principal Geologist
Kristen Knorn
Managing Consultant
Robert Kovacs, PG, LSRP
Principal Scientist
Justin Kowalkoski, PG, LSRP
Principal Hydrogeologist
Yasemin Kunukcu, PhD, PE
Technical Director
Wai Kwan, PhD, PE
Principal Engineer
Adam H. Love, PhD
Vice President Principal Scientist
Mary H. Macy
Chief Financial Officer Executive Vice President
Michael Marsden, PG, CHg
Principal Hydrogeologist
Gregory D. Martin, PG, LSRP
Vice President Principal Hydrogeologist
Richard Maxwell
Principal Geologist Operations Manager
Charles J. McGuckin, PE
Vice President Principal Engineer
Monica McHugh, PG
Technical Director
Lawrence McTiernan, PG, LSP
Principal Hydrogeologist
Brian P. Morrissey, PE, BCEE
Principal Engineer
William S. Muñoz, PE, PG
Principal Engineer Operations Manager
Nancy Nevins, PG, LSP
Principal Geologist Operations Manager
Amy Elizabeth O’Connell
General Counsel
Thomas J. Patterson, PE
Principal Engineer
H. Patrick Penders
Principal Scientist
Christopher Proce, PG, CSP
Vice President Principal Hydrogeologist
Jaydeep Purandare, PE
Principal Engineer Operations Manager
Majda Rabah, PhD, PE, LSRP
Principal Engineer
Omar Ramotar, PE
Principal Engineer
Ian Reed
Vice President Principal Hydrogeologist
Jon Rohrer, PG, CHg
Principal Hydrogeologist
Paul Roux
Founder
Michael Roux, PG
Director Principal Hydrogeologist
Steven Sadiker
Executive Vice President
Marc C. Scarcella
Vice President Principal, Economic & Complex Analytics
Sin Senh, PG
Chief Executive Officer President Principal Hydrogeologist
Mir SeyedAbbasi, PhD, PE
Technical Director
Jay M. Shipley, PE
National Director of Public Sector Services
Dan Sihksnel, MBA
Managing Director of Business Development and Marketing
Kathryn Sommo, CPESC, ISA Arborist
Technical Director Biologist/Environmental Scientist
Ryan Stifter, MS
Principal, Economic & Complex Analytics
Jessica Taylor, PG
Principal Hydrogeologist
Jerry J. Tolosko, PG, LSP
Vice President Principal Hydrogeologist
Robert P. Trail, LSRP
Technical Director
George A. Tyers, PG
Principal Hydrogeologist
Anthony C. Ward, PG
Vice President Principal Geologist
Edward J. Weagle, LSP, LEP, CHMM
Principal Geologist
Craig A. Werle, PG
Principal Hydrogeologist
Mitchell A. Wiest, PG, LEP
Principal Hydrogeologist
Jeff Wills, PG
Principal Geologist Operations Manager
Julia K. Wilson, PhD, PG, LPST CAPM
Principal Geologist Operations Manager
Andy Zdon, PG, CEG, CHG
Technical Director