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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