Pump Station No. 2 Improvements and Modernization

City Council approval to allow the award of a construction contract for the Pump Station No. 2 Improvements and Modernization Project, which proposes to enhance the station’s reliability, operability, and overall condition through a comprehensive set of upgrades across architectural, structural, mechanical, electrical, and instrumentation systems. Key work includes replacing eight vertical non-clog sewage pumps—four in each of two wet wells—along with five pump motors for Pumps No. 1, 3, 6, 7, and 8. The influent channel will be cleaned and repaired and corroded top supports on Mechanical Screens 1 through 4 will be replaced. Structural repairs will be made to Wet Wells No. 1 and No. 2, involving concrete removal to reach sound layers and replacement of reinforcing steel where needed. The project will also upgrade five motor controllers, replacing Liquid Rheostat types with Reduced Voltage Soft Starters and Variable Frequency Drives, and updating existing RVSS controllers for Pumps No. 7 and 8. Valve replacements include eight hydraulically actuated cone valves, eight suction wedge-type gate valves, and eight discharge wedge-type gate valves. Additional enhancements involve replacing eight flywheels with standardized sizes based on surge analysis, installing new pump supports and discharge piping supports, and designing a new pump seal water supply system. Instrumentation upgrades will include new gauges, sensors, and transmitters for monitoring pressure and temperature remotely via the Distributed Control System (DCS). The project also encompasses miscellaneous architectural rehabilitations in the Mechanical Room and structural improvements throughout the Headworks, pump building, and Pipe Gallery. Any ground disturbance would be minimal and limited to previously developed and disturbed surface areas of the pump station facility during the repair and replacement activities. These efforts collectively aim to modernize the facility and ensure long-term operational efficiency.