Marin Municipal Water District Atmospheric River Capture (ARC) Project

(Updated April 15, 2026) The Marin Municipal Water District (Marin Water), the water provider for central and southern Marin, is currently working on the preliminary design and environmental review of pipeline and related facilities that would move excess winter Russian River flows to storage reservoirs in Marin, providing critical drought resiliency.

The District provided comments regarding Marin Water’s proposed Environmental Impact Report for the project. A copy of the District’s comment letter is HERE.

If you would like further information on Marin Water’s ARC Project, please see their project webpage: www.marinwater.org/ARCproject