Case Study: Durability For A DollarSource: The Gorman-Rupp Company
Hopkins, Minnesota occupies four square miles of space in southcentral Minnesota, and is home to 17,000 residents. Originally a housing location for employees of the Minneapolis Threshing Machine Company, Hopkins is now better known as the raspberry capital of America – a distinction that can be traced back to some of the early families that inhabited the area and grew them.
The area is also home to seven lift stations, which pump water and wastewater in various parts of the city – all of which operate with different manufacturer’s equipment. “Generally, most cities don’t do that,” said Mike Lauseng, former Superintendent of Hopkins’ Water and Sewer Division (HWSD). “You try to carry one line of parts – but we came into possession of a lift station that was fully functioning when it was sold to the city by a private owner.”
In the early 1990s, the lift station was retrofitted with a new Supervisory Control and Data Acquisition (SCADA) control panel from Gorman-Rupp. Contained in the system is a computer housed in the lift station’s meter room that is programmed to respond to alarms in the station by continually calling a prearranged list of crewmembers until someone acknowledges it. The system also records the number of hours the pumps are in use and allows data such as flow, pressure, and voltage to be monitored via telephone, radio signals and the Internet.