Larkspur Landing

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Current Project Updates

Cleanup activities are complete at the Larkspur Landing former treatment plant site, as required by the U.S. Environmental Protection Agency (EPA). On December 14, 2021, EPA approved the cleanup of the Larkspur Landing property for unrestricted land use, meaning that the property is suitably clean for all potential land uses with no exceptions. 

EPA approval also allows the District to continue with community outreach to help determine future uses of the property. You can view the District news release announcing EPA clearance here.

Want future Larkspur Landing Updates? Please send an email to and request being added to our Larkspur Landing interested parties list. 

The District selected Century Urban to provide real estate consulting services to help develop a schedule and plan to engage the public and the City of Larkspur about this unique site which is located across the street from Marin Country Mart and near the Larkspur Ferry Terminal and Larkspur SMART station.

A series of special board meetings have been conducted by the District as informational presentations about options for surplus property disposition at its former wastewater treatment plant site at 2000 Larkspur Landing Circle. More information about each meeting is provided below.

A special community forum meeting was held on March 30, 2022, to review the results of a community survey and update the Board on the Larkspur Housing Element. At this meeting, the Board decided to postpone action on the property pending decisions by the City of Larkspur on its General Plan and Housing Element. View the presentations on the community survey results and the Larkspur Housing Element 2023-2031 update by clicking the link.

A special board meeting was held on October 13, 2021 to provide Board of Directors and the public with a recap of these meetings. View the presentation given during the October 13 Special Board Meeting by clicking the link.

Informational Presentation III - January 27, 2021 - Surplus Land Act

Informational Presentation II - December 3, 2020 - Larkspur Landing Circle Land Use Entitlements and Larkspur General Plan 2040

Informational Presentation I - September 30, 2020 - Potential Transactional Structures (Sale, Lease, Joint Venture)

The District will provide updates on scheduled presentations, board meetings and opportunities for public engagement as they are proposed and conducted.

We encourage our ratepayers to track and participate in this discussion as the Board weighs alternatives, and we will keep you informed about additional opportunities to provide input. If you experience any difficulties accessing the meeting, please contact the Clerk of the Board.

Project Background

Ross Valley Sanitary District (RVSD) began clean up of its 10.7-acre former wastewater treatment plant site at 2000 Larkspur Landing Circle in summer 2019 and completed the work on September 9, 2020. The property contained trace concentrations of polychlorinated biphenyls (PCBs) which were present in some of the paint applied to the concrete administration buildings. The concrete of the former plant was crushed and used as a backfill back in 1999.

In March 2019, US EPA approved the remedial action plan to safely remove and dispose of this material, and in May 2019, RVSD selected a contractor to conduct the cleanup work. Site cleanup consisted of removal of about 64,000 tons of soil and demolition debris to a municipal landfill and removal of about 2,600 tons to a hazardous waste landfill. The site has been cleaned to a level that enables unrestricted use of the property. Excavated areas have been back-filled with clean soil, with topsoil and hydroseeding.

The cost of construction, engineering and permitting for this cleanup has been approximately $9.5M since 2018, and $10M in total. On January 15, 2021, RVSD submitted the draft site cleanup completion report to U.S. EPA for their comment. Now that the final revised report has been accepted by the U.S. EPA on December 14, 2021, the site is officially available for consideration of the appropriate unrestricted land use.

On March 17, 2021, the District adopted a Communications and Engagement Strategy for the potential disposition of the property. 

Larkspur Landing Documents

View the Larkspur Landing Frequently Asked Questions (FAQs).

View the Larkspur Landing Project Information Sheet.

Click on the links below to see individual documents.

Larkspur General Plan

Cleanup Project


Site History

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