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Mar
31

Raw sewage pump replacement

Learn about the raw sewage pump replacement project at West Point to replace the plant’s aging pump system and make seismic improvements to the building that holds the pumps.

Project update

Get the latest updates on West Point.

Project description

The raw sewage pump system at West Point was built in 1966 with the original facility. The original system uses 4 pumps to meet the needed capacity. Pumping untreated combined sewage over a long time has resulted in significant wear on the pumps. In addition, the system could fail during an earthquake due to its age.

The purpose of this project is to replace the raw sewage pump system at West Point and implement structural improvements to the facility that holds the pumps.

Project benefits

This project will improve both the pump system at West Point and the building that holds the pumps.

Replacing the pump system at West Point will build redundancy in the pump system. The current system needs all 4 pumps to meet maximum capacity needs and does not have capacity to handle potential overflows. The new system will only require 3 pumps of the 4 pumps to meet maximum capacity needs. The maximum capacity for the system can still be handled even if 1 pump needs maintenance.

This project will also make seismic improvements to the pump building structure in the event of an earthquake.

Project schedule

The project began in 2024. It will take approximately one year to replace each of the four pumps. Construction will last approximately five years, through 2029.

  • 2024

    • Construction equipment staging begins.
    • Initial demolition and abatement of sections of the RSP building starts.

  • 2025

    • Demolition and abatement work continues.
    • Relocation of existing utilities and installation of new utilities for new pumps begins.
    • A new bridge crane will be installed.
    • Demolition of breakroom, bathroom, day room.
    • New battery room constructed.
    • Structural seismic upgrade work begins.

  • 2026

    • First pump and engine are replaced with new pump and electric motor.
    • New electrical equipment and controls installed.
    • New breakroom, bathroom, and day room constructed.
    • Structural, electrical, piping, and control modification made for first pump.

  • 2027

    • Second pump and engine are replaced with new pump and electric motor
    • Rehabilitation of morning glory and pump discharge for second pump
    • Structural, electrical, piping, and control modification made for second pump

  • 2028

    • Third pump and engine are replaced with new pump and electric motor

Community impacts and outreach

The County anticipates that impacts to the nearby community during construction, such as noise, will be minimal as construction will take place inside the treatment plant walls.

We will provide ongoing updates on our website as the project progresses. Sign up for email or text updates for current West Point Treatment Plant capital improvement projects below.

Project documents

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