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First Phase Down, One to Go for Lake Kilby
November 11, 2020
Teammates on the Lake Kilby Water Treatment Facility project successfully completed Phase 1 upgrades to the existing plant to allow for more efficient distribution of quality water.
Built in the 1940s, the facility collects water from the nearby Lake Kilby, disinfects it and distributes 33 million gallons (mgd) of water a day to approximately 150,000 residents of Portsmouth, Virginia and nearby cities.
Since original construction, the population in the area has grown exponentially, requiring a greater demand for efficient distribution and new filters to ensure the drinking water meets provisions of the Safe Drinking Water Act Amendments and Department of Health requirements.
Balfour Beatty teammates began construction on the project in 2016 with the demolition of existing structures, including sedimentation basins, select filters, process piping and chemical feed systems.
During Phase 1 of construction, the project team built a new filter building to replace the old one, including concrete water retaining structures and installation of under drains to support eight new filters, and a new operations and control building.
Phase 2 of the project is expected to begin early 2021 with the installation of a new ultraviolet (UV) disinfection system as an additional feature for distributing quality water efficiently and safely.
“Typically, water plants do not have a UV system, they put chlorine and add ammonia to get the water down the stream further,” Jeff Kracun, operations manager explains. “Installing a UV system as an additional safety feature, makes the drinking water safer to digest.”
The project is expected to be complete fall 2021.