Faced with a flooded below ground pump station, the village of Chicago Ridge, Ill. looked to Metropolitan Industries for an emergency solution.
Metropolitan’s new LMS II level management system contains a standard program to cover nearly all lift station applications.
Due to a below ground vault flood, the pump station’s vital equipment, including pumps and controls, sustained significant damage.
A large stainless steel traffic box housing all controls and a permanent standby generator were part of the supplied package.
To ensure safety, access hatches were added for entrance into the wet well and valve vault.
Separate storm and sanitary lift stations installed with a control building and generator eliminated existing confined space installations.
Sanitary Lift Station
The sanitary lift station was a prefabricated polyurea coated steel basin measuring 8’ in diameter and approximately 22’ deep with 6’’ piping and valves. Inside the basin, two 15HP submersible pumps each having the capacity to pump 700 gallons per minute at 38’ of total dynamic head.
Some special features included using impressed current cathodic protection in lieu of sacrificial anodes, which over time dissolve and break down promoting corrosion of the station. Using impressed current cathodic protection known as the Metro Guard with steel stations reduces corrosion if not eliminating it entirely throughout the life of the system.
Another feature included adding trash baskets at the inlet pipe near the pumps that catch large debris and prevent the pumps from clogging. Given this station is located in an industrial park, special attention was paid to controlling the larger debris generated by the industrial customers and trash baskets were added as a preventative measure.
Bedford Park’s Water Superintendent makes an adjustment on their new variable speed control panel.
Storm Water Lift Station
The storm water lift station, located next to the sanitary station, was also a prefabricated polyurea coated steel basin which measured 8’ in diameter by 19’ deep with 6’’ piping and valves. Inside the basin, two 15HP non-clog submersible pumps each move 700 gallons per minute at 38’ total dynamic head. The Metro Guard impressed current cathodic protection system also protects the steel basin from corrosion.
The brains behind any system are the controls operating it. Metropolitan Industries is proud of the fact that their U.L. panel shop can design, build and program custom packages related to any pumping application.
Bedford Park’s system incorporates the latest in variable speed PLC control logic and integrates both the storm water lift station and sanitary lift station together using a common control panel and a common 100kW natural gas generator adding a unique aspect to how the system is operated.
The controls are housed in a pre-cast concrete building with a faux brick exterior measuring 10’ long x 7’ wide x 10’ 6’’ high. The building was delivered to the jobsite ready to install by the contractor. Inside, all components such as the control panel, variable frequency drives, HVAC, lighting, automatic transfer switch, main disconnect and more were all factory pre-installed before shipment to the jobsite requiring the contractor to simply off-load and make minor electrical connections.
Now in operation, the new storm water lift station and sanitary lift station eliminated confined space applications. Metropolitan Industries, Inc., located in Romeoville, Ill., is a single source supplier of pumps, control systems and ancillary equipment serving the commercial, municipal, industrial and residential markets. For more information about this project, contact Keith Girup at 815-886-9200 or visit www.metropolitanind.com.