CONNstruction - Summer 2017 - 17
to three years for the machine to make
Also ongoing are major upgrades to
increase capacity at the Hartford Water
Pollution Control Facility and the satellite
Rocky Hill treatment facility. Before the
Clean Water Project started, the peak wet
weather capacity of the Hartford treatment
plant was 110 million gallons of water per
day. Upon completion of the improvements,
the capacity will increase to 200 million gallons per day.
The plant upgrades are expected to cost
more than $500 million.
"These projects have created a lot of
employment opportunities for various companies and employees that are all dedicated
toward the ultimate goal of improving the
environment through the implementation of
these projects," says Joseph L. Laliberte,
P.E., B.C.E.E., associate with the firm
CDM Smith, the program manager consultant for the Hartford Metropolitan District
Commission. Laliberte is program manager
for the Connecticut Clean Water Project.
The Clean Water Project was MDC's
response to a consent order from the
Connecticut Department of Energy and
Environmental Protection to address combined sewer overflows, and a consent
decree from the Environmental Protection
Agency to address sanitary sewer overflows.
At the start of the project in 2008, there
were close to 1 billion gallons of combined
sewer and sanitary sewer overflows into
the water bodies each year. "Through the
projects that we've either completed to date
or currently have under way, we've reduced
that by about 33 percent," Laliberte says.
Completion of the South Hartford Tunnel
project in January 2024 is expected to
reduce the overflow volume by 44 percent.
The ultimate goal of the Clean Water
Project is to reduce discharge levels by
100 percent during a typical year. "We're
doing pretty well along the way to achieving
that goal," Laliberte says.
Workers on the Clean Water Project have
had to account for factors such as the city's
age, which can pose challenges to a project
of this size. "Hartford is an old city. Things
under the ground might not be marked, so
you've got to be able to adapt," Salemi says.
Communication with all of the different
groups and people associated with the
project has also been key. That includes
contractors, subcontractors, engineers,
neighborhood groups, the MDC, the state
DEEP and other environmental stakeholders.
"Being successful at a project like this
means we have to have good collaboration
and good teams, and to have good partners
along the way," Salemi says.
The Clean Water Project is slated for
completion in 2029.
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CONNstruction / SUMMER 2017
4/19/17 12:32 AM