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Senior Staff
Directors
John Freeman, PE, CME, CPWM
Executive Vice President, Director - Public Services
Vajira Gunawardana, PE, PP, CFM, Fellow-ASCE
Director - Environmental Services & Water Resources
Robert Schwarzkopf, CHMM, LSRP
Director - Site Remediation Services
Brad Thompson, PE
Director - Land Development
Poshu Huang, PE
Director - Information Technology
Ohannes Najarian, MBA
Director - Marketing and Communications, Business Development
Senior Staff
Joseph DiLorenzo, Ph.D.
Senior Scientist - Hydrodynamic Modeling & Consulting
Howard Litwack
Senior Environmental Scientist - Water Quality Modeling & Permit Support
Georgia Marino
Senior Environmental Scientist - Environmental Assessments & Permitting
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