Trinidad II Pump Station Modifications Project

The project upgraded the oldest unimproved sanitary sewer pump station in the District. Renovations were designed to reduce Sanitary Sewer Overflow (SSO) risk, reduce staff maintenance and overtime hours, and improve worker safety. Renovations included:

  • Construction of a new buried influent sewer pipe and new buried pump station discharge force main 
  • Upgrades to the submersible pumps to meet current pumping demands 
  • Upgrades and modernization of pump controls and Central Marin Sanitation Agency (CMSA) monitoring capability 
  • Installation of a  new Diesel Standby Generator 
  • Construction of a pump wet well protective coating to enhance maintenance.

Status: Completed  

Project Type(s): Sanitary District 

Construction Schedule: Work was completed as of July 2020. If you still have questions regarding this work, please contact Fernanda Stefanick at (415) 927-5792 or Pippin Cavagnaro of Nute Engineering at (415) 453-4480 ext 203. Or email Fernanda at or Pippin at

Project 17-204 Before

Project 17-204 Before 2

Before Modifications

Project 17-204 After

After Modifications