City of Santa Rosa image CIP

Capital Improvement Project

Laguna Treatment Plant Waste Gas Burner Replacement

Estimated Construction Schedule: Slated to begin September, 2022 and is anticipated to be completed September, 2023.
Construction Contract Amount: Pending
Project ID #: 1978
Description: The City of Santa Rosa owns and operates four anaerobic digesters at the Laguna Treatment Plant. Digester gas generated by the anaerobic digesters is used to mix digester contents and to fuel the engine-driven generators. A waste gas burner will be installed for burning digester gas during times when digester gas production exceeds engine fuel requirements, when engines are off-line for maintenance, or when digester gas is of low quality and cannot be used as engine fuel.

Construction Update Image

Winter 2023: Pacific Infrastructure to mobilize to the project site in February. Construction will begin with excavation and installing pipe supports. It is anticipated that pipe installation will begin in March.


Richela Maeda
Associate Civil Engineer
City of Santa Rosa

Dave Keck
Quality Control Associate
City of Santa Rosa
+1 (707) 481-4312

Mark Jorgenson

Click for larger image
Project Image

Note: All dates and times are subject to change.