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all things water®

Contact Us

498 Seventh Ave, 11th Floor
New York, NY 10018

(212) 539-7000

Andre Dieffenthaller, PE

Vice President

Andre Dieffenthaller, PE

Andre has extensive experience in the planning, design, permitting, and construction management of water and wastewater treatment improvements, including master planning, condition assessments, treatment plant upgrades, pressure and gravity piping, chemical feed systems, and pumping improvements. He has managed or directed many regionally significant projects, including dozens of master plans, and has earned a reputation for successfully delivering projects within budget and on schedule, including under challenging conditions.

Areas of Expertise
Water treatment plant design
Process evaluations
Master planning
Condition assessments
Project management
Professional Activities
American Water Works Association (AWWA)
Water Environment Federation (WEF)
Southeast Desalting Association (SEDA)
MS, Civil Engineering, Rutgers University
BS, Civil Engineering, Princeton University
Professional Engineer (PE)