Following the submittal phase, the packaged lift station is completely manufactured and shipped to the county. Once notified that the lift station is in transit, the county schedules their workforce to begin the demolition and replacement of any structural components that need to be replaced, i.e., wet wells, valve vaults, piping sections, etc.
In the case of the above-ground mid-range stations, installations are conducted with only existing public works staff, a convenience only made possible by the improved technical knowledge of the standard design.
“We [public works technicians] do all the work for the wet well, the piping, so that we can easily install the lift station when it arrives,” Brown said. “All we have to do is run the pressure line, run the electrical and install the base and we’re off running.”
The county prefers this construction approach because of the knowledge it gives their operations staff for the future operation of the lift station. Operators develop a deeper understanding of how the station is assembled and how it operates through this installation method. While this approach initially required additional county staff resources to handle installation, the costs are more than absorbed in other ways: reduced out-of-pocket expense for contractors, and long-term gain in operation and maintenance costs because of the operators’ increased ability to troubleshoot and anticipate problems before they become emergencies.
Overall, the tiered approach provides Fremont County with many time- and cost-saving benefits.
Size and complexity of spare parts inventory has been significantly reduced. Ongoing consulting engineering and contracting fees are virtually eliminated.