David L. Haas, PE
Associate Vice President
With more than 30 years of experience, David is one of Hazen and Sawyer’s most accomplished senior project managers with extensive experience in optimizing water treatment facilities. Over his career, he has performed and led complex master planning projects and numerous projects related to drinking water supply, distribution, and multi-stage treatment. His treatment experience includes advanced technologies such as riverbank filtration, membrane filtration, ultraviolet light disinfection, and on-site generation of sodium hypochlorite.
- Areas of Expertise
- Disinfection byproducts
- Evaluation of chlorine alternatives
- On-site sodium hypochlorite generation
- Riverbank filtration
- Professional Activities
- American Water Works Association
- • Water Treatment Facility Design and Construction Committee
- Georgia Association of Water Professionals
- • GAWWA Water Treatment Committee (Chair 2013-15)
- Education
- ME, Environmental Engineering, University of Louisville
- BS, Environmental Engineering, University of Louisville
- Certification/License
- Professional Engineer: GA, KY
- OSHA 10-hour Construction Safety and Health Training
