At the Front of Plant site, SVCW’s contractor partner, Shea Parsons Joint Venture (SPJV), continues construction work at the Surge and Flow Splitter (SFS) shaft. With the completion of the second pass walls at the shaft, current work involves completing installation of pipe penetrations on the north and south sides of the shaft; one of the openings provides protection for emergency overflow conditions and the other allows for the collection of foul air from the SFS shaft and routing it to the foul air treatment system. Simultaneously, SPJV is also making preparations for the precast roof sections for the shaft. For each of the nine sections in the shaft, forms will be set onsite, which will be used to place and cure the precast concrete roof sections to be placed over the shaft opening at a later time.
At the Receiving Lift Station (RLS), SPJV has begun installation of the six new RLS pumps, which will pump raw wastewater entering the RLS shaft from the gravity tunnel, to the new Headworks Facility. The crew is currently conducting a key preliminary step by installing steel sole plates for each pump location. These plates are major components for successful pump installing by providing structural and vibration support for the pumps to ensure a long-term operational life. Additional electrical work at the RLS includes installation of conduits, along with other equipment and instrumentation. All of the pump installation work will be performed in coordination with the SVCW Operations and Maintenance team. At the Headworks Facility, installation of electrical conduits and device boxes for various equipment at the new headworks is underway.
SFS shaft pipe penetrations
RLS shaft work preparing for installation of the new RLS pumps
Valve actuators in RLS shaft
SFS and RLS shafts overview