South Cobb Tunnel Pump Station
Owner:
Cobb County Water System
Location:
Austell, Georgia
Architect:
Parsons
Contract Value:
$63,000,000
Completion Date:
October 2011
The project consists of a 130-MGD lift station to convey wastewater flows from the tunnel to the plant, with six 32.5 MGD vertical non-clog centrifugal pumps in a conventional wet well / dry pit configuration. The lift station will have a concentric cylinder configuration with the inner cylinder functioning as the wet well and the dry well occupying the annular space between the outer cylinder and the wet well exterior wall. Both the wet well and the dry well will be divided into two bays. The wet well will be provided with an odor control system, while the dry wells will be provided with elevators, auxiliary pumps, HVAC and dehumidification systems. There will be an electrical building, which will house drives, starters, switchgear and plant equipment, along with an emergency standby generator and instrumentation and control systems.
