Local Projects

San Leandro Treatment Wetland

The San Leandro Treatment Wetland for Pollution Reduction, Habitat Enhancement and Shoreline Resiliency is an effort to design and permit an ecotone levee adjacent to the City of San Leandro Water Pollution Control Plant. The project propose to convert a 4.3-acre wastewater storage basin adjacent to the plant into an integrated treatment wetland, habitat enhancement, and sea level rise adaptation project. An additional objective is to develop a shoreline resiliency and tidal marsh restoration vision for the surrounding area.

San Leandro’s Water Pollution Control Plant, built in 1939, is one of the oldest East Bay wastewater treatment facilities and 82% of the city’s wastewater infrastructure is exposed to flooding from just 16 inches of sea level rise. Sensitive industrial sites and ecological resources along the City’s shoreline also face increasing flood risk over the coming decades. This project most closely focuses on the creation of a multi-benefit wastewater treatment wetland. Yet an additional objective is to develop a community-based vision for how the City interacts with and utilizes its bay front spaces.

Funds from the Restoration Authority (Measure AA) were awarded to advance engineering designs, consult on environmental permits, complete California Environmental Quality Act review, and kick-start a shoreline resiliency and tidal marsh restoration vision for the surrounding area.

More information about the project on the City’s project website.


Palo Alto Horizontal Levee

The Palo Alto Horizontal Levee Pilot Project is working to bring a habitat-focused levee to the community. The project is a partnership between the City of Palo Alto and the Estuary Partnership, along with a consultant team from Environmental Science Associates.

Project Objectives: 

  • Restore rare and historic ecotone transition slope habitat for special-status species;
  • Adapt to sea level rise by providing a transitional ecotone slope that will support freshwater plants to build organic soils to keep pace with some level of sea level rise and to allow wetland habitat to migrate up-slope with rising water levels;
  • Enhance the ecological functionality of the horizontal levee using irrigation from tertiary-treated wastewater.

The Transforming Urban Water initiative recently secured funds from the Environmental Protection Agency – Climate Ready Estuary to advance designs and permitting for this project. Additional funds will be needed to reach implementation.