Construction Updates

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Construction Updates

As EchoWater progresses, this page will be updated with the latest construction information!


Major upgrades to Regional San’s wastewater treatment plant are underway. The EchoWater Project is the largest public works project in Sacramento’s history, with 20 separate construction projects and numerous construction contractors on site through 2023.

Current Activities

EchoWater construction activities are in full swing:

  • Tertiary Treatment Facility
  • Flow Equalization Project
  • Final Site Improvements
  • Biological Nutrient Removal Project
  • Channel Aeration Blower
  • Nitrifying Sidestream Treatment Project
  • Return Activated Sludge Pumping Project
  • Bradshaw Equalization Structure
  • Heavy Equipment Maintenance Building
  • Bufferlands Building
  • Fiber Optic Replacement Project
  • Site Preparation Project
  • Miscellaneous Site Buildings
  • Main Electrical Substation Expansion
  • Disinfection Chemical Storage Project
  • Chemical Handling Decommissioning
  • Effluent Valve Replacement

Regional San’s Program Management Office (PMO) and plant staff are working hard to keep all these critical undertakings moving forward while simultaneously planning the smooth launch of future projects.

View pictures of the ongoing construction activities in our Photo Gallery.

Projects At-a-Glance

View an overview of the EchoWater projects and their estimated timelines.


Contact us at 876-ECHO (3246) or

Dwight Road entrance for EchoWater construction traffic

Traffic Management

With multi-year construction of the EchoWater Project bringing more traffic to local roadways, especially along Laguna Boulevard between I-5 and Dwight Road, Regional San is working to minimize those impacts and be a good neighbor to the Elk Grove community.

Traffic impacts will vary as construction activities ebb and flow over the next few years. During periods of expected heavy activity, we will increase our outreach efforts to ensure the community is prepared.


Community Outreach

Ongoing communication with residents, businesses, and commuters will remain a top priority during construction. Regional San will utilize the following methods to keep people informed during construction:

  • Updates on the project website at
  • Project hotline updates at (916) 876‑ECHO
  • Signage on Laguna Boulevard near Dwight Road to advise motorists about construction traffic
  • Direct dialogue with those potentially impacted by construction traffic
  • Updates in the annual EchoWater Project Newsletter each fall
  • Traffic advisories and press releases
  • Periodic updates in the City of Elk Grove newsletter

Hotline and Website

The best way to get current updates and information about the project is through this EchoWater website and our information line.


Hotline: (916) 876-ECHO

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