Larkspur Landing

Larkspur Landing1

November 2020 Project Update

Cleanup activities have been completed at the Larkspur Landing former treatment plant site, as required by the U.S. EPA. Now that the cleanup project is wrapping up, the District is embarking on the next phase of the property disposition. 

The District selected Century Urban to provide real estate consultant 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. 

Project Background

Ross Valley Sanitary District (RVSD) began clean up 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 was present in some of the paint that was applied to the concrete administration buildings. The concrete of the former plant was crushed and used as 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 the cleanest levels that enable unrestricted use of the property. Excavated areas have been back-filled with clean soil, with topsoil and hydro seeding. 

The cost of construction, engineering and permitting for this cleanup has been approximately $9.5M since 2018, and $10M in total. RVSD will submit the final site cleanup completion report to U.S. EPA for their acceptance.

Click here to see the Larkspur Landing Frequently Asked Questions (FAQs).

Click here to see the Larkspur Landing Project Information Sheet.

We continue the public process of discussing the disposition of the Larkspur Landing property at a Special Board Meeting on Thursday, December 3 at 4 p.m. via GoToMeeting. This will be the second Informational Presentation (II) focusing on Current Land Use Entitlements and the Larkspur General Plan Update. The first public Informational Presentation occurred on September 30, 2020 and focused on potential Transaction Structures (i.e., lease, sale, or joint venture development).


Click here to see the first Informational Presentation given on September 30. Click here to see a video of the presentation. Future informational presentations will include the state's Surplus Lands Act and how it affects the property's disposition.

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.

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