Russian River Weekly Update 3/23/26

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Lake Mendocino on February 20, 2026 by CJ Watt

Reservoir Storage & Operations:

Water supply information provided by Sonoma Water (find more water storage info here).

The image shows water storage levels and changes for Lake Mendocino, Lake Pillsbury, and Lake Sonoma as of March 2023.

The graph shows Lake Mendocino's storage levels from 2019 to 2026, highlighting changes in acre-feet over time.

The graph shows Lake Pillsbury's water storage levels and target scenarios from 2019 to 2026, with specific projections for 2026.

The graph displays Lake Sonoma's water storage levels from 2019 to 2026, with a notable value of 264,208 acre-feet on March 23, 2026.

Russian River Temporary Urgency Change Petition

Sonoma Water filed a petition on March 19, 2026

2026, 3-19 SCWA TUCP Transmittal-Package.pdf

PG&E’s Final Surrender Application for Potter Valley Project

Recent comments and articles:

Maureen "Mo" Mulheren- Mendocino Second District Supervisor Facebook Page, a post dated March 19th

The image includes text about five key facts regarding the Eel Russian Diversion Plan, set against a natural landscape backdrop. — from Mo Mulheren's facebook page: Maureen "Mo" Mulheren- Mendocino Second District Supervisor

PG&E 2026 Potter Valley Project Operations

FERC opened the public comment period on the 2026 Flow Variance. More information on the RRFC Webpage.

Recently Submitted Comments:
(Note, only comments and filings made by organizations will be linked to provide privacy to individuals.)

California Natural Resources Agency Hosts Discussion with Women Leaders Driving Conservation Amid National Challenges, Thursday, March 26, 2026; from noon to 1 p.m.

At a time when women in federal leadership face intense scrutiny, California shines as a model of progress, where women continue to be admired, respected, and hired into influential positions in conservation and sustainability. Celebrate Women’s History Month by joining a conversation with women leaders who demonstrate how their leadership drives resilience, equity, and collaboration, connecting science, policy, and communities for lasting impact. Register here.

Proposition 4 Workshop April 30, 2026 9:00 AM - 12:00 PM

Joint Workshop for the Proposition 4 Sustainable Groundwater Management Grant Program and the Watershed Resilience Grant Program. This virtual workshop will provide a general overview of both programs, discuss upcoming Proposition 4 funding opportunities, and provide an opportunity for early input on program development ahead of developing Guidelines.

Additional details, including the workshop agenda and registration link, will be shared soon via email and the respective program webpages (linked above).

Learn More About the Russian River Telemetry Study in a Video Featuring Local Farmers!

To learn more about the Pilot, watch one of the videos below and visit our webpage: RRFC Webpage on the State Water Board Russian River Telemetry Pilot.