• Neal E. Armstrong: water quality management, analysis, modeling, & policy; and water pollution ecology. (Vice Provost for Faculty Affairs - not actively teaching)
• Randall J. Charbeneau: engineering hydraulics, stormwater management, groundwater flow and contaminant transport, multiphase flow in porous media, mathematical modeling.
• Richard L. Corsi: indoor air quality, sources and control of indoor air pollution, physics and chemistry of indoor environments, human exposure to indoor air pollution.
• Davis Ford (Adjunct): water and wastewater systems design.
• Hillary Hart: technical communication, research ethics, environmental communication, risk communication.
• Ben R. Hodges: environmental fluid mechanics, transport in surface water (lakes, rivers, estuaries and wetlands) and linkages between transport and water quality. 
• Lynn E. Katz: aquatic chemistry, surface & interfacial phenomena, physicochemical treatment processes, fate & transport of contaminants.
• Spyros A. Kinnas: computational hydrodynamics, cavitation, ocean-vehicles propulsion & control, waves & wave/body interaction, boundary element methods.
• Kerry A. Kinney: air pollution control, biological treatment of contaminated air, biofilm processes.
• Mary Jo Kirisits: biological water treatment processes, biofilm processes, Pseudomonas aeruginosa biofilms, application of molecular biology to environmental systems.
• Desmond F. Lawler: particle removal in drinking water and wastewater treatment, interactions among treatment processes, pollution prevention.

• Howard M. Liljestrand: environmental chemistry, transport & fate of pollutants, receptor modeling, acid deposition, chemical conversion & transport.
• David R. Maidment: surface water hydrology, computer & statistical methods in water resources, geographic information systems.
• Joseph F. Malina Jr.: water & wastewater treatment, plant design, biological wastewater treatment, treatment & disposal of sludge and solid wastes.
• Daene C. McKinney: water resources planning & management, groundwater modeling and management, optimization, uncertainty and reliability analysis.
• Danny Reible: Contaminant Fate and Transport, Environmental Processes and Effects, Assessment and Remediation of Contaminated Sediments
• Jeffrey Siegel: Aerosol transport and deposition, Indoor air quality, protecting buildings from bioterrorism, building energy efficiency (Architectual Engineering)
• Gerald E. Speitel, Jr.: treatment processes for hazardous organic chemicals, biodegradation, adsorption, drinking water treatment, treatment plant design.

Emeritus Faculty

• Leo Roy Beard: "Computer applications in hydrology.
• Earnest F. Gloyna: industrial waste treatment, liquid & solid wastes, biological/physical/chemical wastewater treatment, supercritical water oxidation.
• Edward Holley: Hydraulic engineering, environmental fluid mechanics for rivers, estuaries, and lakes; pollutant transport problems; sediment transport; hydraulic models.
• Raymond C. Loehr: hazardous & industrial waste management, land as a waste management alternative,   aerobic & anaerobic waste treatment processes.
• Charles A. Sorber: public health aspects of land application of wastewater and sludges, wastewater reuse, disinfection and disinfection by-products.