French Village Booster Pump Station Replacement

Location: O'Fallon, Ill.

Client: City of O'Fallon, Ill.

Completion Date: 2008

Based on the results of a 2005 water master plan storage, pumping and distribution analysis, a new 12-million-gallon-per-day (MGD) booster pump station is under design to replace the existing French Village Booster Pump Station located approximately one-half mile from the Illinois American Pump Station in French Village, Ill. This 12-MGD station will be fed from both 12- and 24-inch mains from the IAWC meter vault at Holy Cross Road and is being designed to boost pressure from 95 psi to 120 psi in the lines. The station will be operational in late 2007 or early 2008.

The existing French Village Booster Pump Station is not capable of delivering the required volume to meet projected demands, has no auxiliary power and is only connected to the 12-inch main coming from IAWC’s Booster Pump Station in French Village. Furthermore, the current pump is old and does not operate on the efficient part of the pump curve.   

If IAWC continues to deliver water at 105 psi from their Booster Pump Station, about 85 to 95 psi on suction side of O’Fallon’s Booster Pump Station, then the new Booster Pump Station should boost pressure between 20 and 30 psi. This amount is sufficient to meet a desired pressure of 40 psi during maximum day and peak hour demands. The new French Village Booster Pump Station will house three 100 hp pumps, two for normal operation and one for firm capacity. Two pumps combined will be capable of delivering 12 MGD and will be equipped with variable frequency drives (VFD) to accommodate fluctuations in daily demands and provide a higher level of efficiency.