RBF_Cover (for eps) - National Water Research Institute

was designed to deliver a dose of 140 millijoules per square centimeter to meet all disinfection
goals for Giardia, Cryptosporidium, and viruses at a design UV transmittance of 60 percent.
The cost of a 5-MGD bank filtration/ozonation/UV-disinfection treatment facility is approximately
$4,759,000 for design and construction and $147,000 per year for O&M (or $0.20 per 1,000 gallons
of water produced). This translates into a normalized capital cost of $0.95 per gallons per day of
capacity and a production cost of $0.70.
BOB CUSHING has 14 years of experience in applied environmental science and
engineering. Throughout his career, he has coupled fundamental concepts with sound
engineering practices to provide creative, innovative, and enduring solutions to challenges
faced by water and wastewater utilities. Cushing has been responsible for numerous
successful treatment facility planning and design projects, as well as studies and programs
for improving distribution system water quality. Cushing has practiced nationally,
providing service to a broad cross-section of the industry, from some of the largest and most
visible utilities (e.g., New York City and Washington, D.C.) to very small applications with important and
unique issues (e.g., Oray National Fish Hatchery, Utah). He has also been responsible for introducing and
applying advanced technologies, most notably ultraviolet disinfection for potable water treatment. An
internationally recognized expert in ultraviolet disinfection, he is responsible for seminal applied research in
this area, and is project manager and a primary author for the United States Environmental Protection
Agency’s Ultraviolet Disinfection Guidance Manual. Cushing received a B.S. in Petroleum Engineering and an
M.S. and Ph.D. in Civil Engineering from the University of Texas at Austin.
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