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all things water®

Contact Us

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

(212) 539-7000

Erik Rosenfeldt, PhD, PE

Vice President

Erik is Hazen’s Drinking Water Practice Lead and a senior member of the firm’s Reuse and Applied Research groups. As the national practice lead, he is responsible for developing the strategic direction of the group to ensure our continued high level of technical excellence, quality, and service in solving our clients’ most difficult challenges. Erik aims to blend innovation and practicality for every project, diligently working to keep Hazen's place as a trusted advisor.

Areas of Expertise
Physical/chemical processes
Water process technology
Bench/pilot testing
Water chemistry
Emerging contaminants
Disinfection by-products
Advanced water treatment processes
Professional Activities
American Water Works Association (AWWA), Organic Contaminants Research Committee, Virginia Water Quality and Research Committee Chair
International Ozone Association (IOA)
International Ultraviolet Association (IUVA)
PhD, Environmental Engineering, Duke University
MS, Environmental Engineering, Duke University
BS, Chemical Engineering, Washington University
Professional Engineer (PE)