Black & Veatch Proceed with Largest
DBO Water Project
Ariz. (Sept. 23 , 2003) McCarthy Building Companies, Inc. and Black & Veatch
announced today that they have received notice to proceed with design-build delivery of
the 80 million gallon per day Lake Pleasant Water Treatment Plant (WTP) in Phoenix, Ariz.
joint-venture team will design and build the advanced WTP and associated facilities.
American Water Services (AWS) will then manage and operate the facilities for a period of
15 years. The City of Phoenix awarded the $336 million DBO contract to AWS in August.
project is a major key to growth in the northwest Phoenix area, said Bo Calbert,
president of McCarthys Southwest Division. The Lake Pleasant WTP will provide
enough water to supply 400,000 households. By getting ahead of expected growth, the city
can ensure that necessary infrastructure is in place to manage water needs and usage
before existing services are overwhelmed.
permitting will take 12 to 15 months. Once construction begins in the summer of 2004, the
two companies will manage all aspects of construction for the 225-acre plant site. The
project is scheduled for start-up and finished-water delivery in February 2007.
Lake Pleasant Water Treatment Plant will incorporate the latest in modern water treatment
technology and automation, said Dave Mahaffay, a senior vice president and regional
manager for Black & Veatch.
will include an innovative ballasted flocculation process for high-rate sedimentation,
ozonation, deep-bed monomedia filters, post-filtration granular activated carbon
contactors and ultraviolet disinfection. These processes will control taste and odor, eliminate harmful bacteria and other substances, and
provide a reliable supply of high-quality drinking water. The contract also includes a raw
water intake and pump station, 1.5 miles of large-diameter pipeline and on-site storage
and pumping of finished water.
As the largest DBO
water project in North America and the first one for Phoenix, Lake Pleasant will be in the
spotlight for the next four years, said Calbert.
construction management-at-risk and DBO are becoming more popular throughout the water
industry, said Mahaffay. These approaches enable
municipalities to select contractors based on their qualifications and ability to
deliver a sound product rather than just low bid
which ultimately will save taxpayers money.
The plant is
designed to match the natural environment, consistent with the Frank Lloyd Wright
architectural philosophy. Extensive use of indigenous materials will link the worlds of
nature and man and demonstrate the interdependence of the architecture and the site.
Former Frank Lloyd Wright apprentice Vern Swabach of Swabach Partners will lead the
architectural concept design as a subcontractor to the Black & Veatch/McCarthy team.