Theme for 2026:
Who Owns The Rain?

July 16, 2026
University of California, Davis
On this page:

Special Recognition Award

The 2026 Special Recognition Award was presented to Tom Painter. See the award language and biographical information on the Symposium's Tom Painter award page.

Presentations

Enhancing Deterministic Freezing-Level Predictions in the Northern Sierra Nevada through Deep Neural Networks

Rachel Weihs
Research Analyst
Center for Western Weather and Water Extremes
Scripps Institution of Oceanography
University of California, San Diego
La Jolla, CA

Vulnerabilities and Strategies for Addressing Climate Driven Changes in American River Basin Precipitation (More Rain Less Snow)

James Peifer
Executive Director
Sacramento Area Regional Water Authority
Sacramento, CA

Winter Stormwater Available for Storage and Beneficial Use in the Central Valley

Caity Peterson
Associate Director
PPIC Water Policy Center
San Francisco, CA

Who Owns The Rain?

Karrigan S. Bork, J.D. Ph.D
Director
Center for Watershed Sciences
UC Davis
Davis, CA

Panel: Sacramento River Watershed

Moderator:

Tim Washburn
Agency Council and Planning Director (retired)
Sacramento Area Flood Control Agency
Sacramento, CA

Panelists:

Kaitlyn Chow
Water Operations Program Manager
Yuba Water Agency
Marysville, CA
Ali Forsythe
Sites Reservoir: Sites Project Authority
Maxwell, CA
James Peifer
Executive Director
Sacramento Area Regional Water Authority
Sacramento, CA
Erik Ringelberg
Regional Vice President — California
The Freshwater Trust
Sacramento, CA
Mike Myatt
Senior Director
Climate Resilient Water Systems
Environmental Defense Fund
San Francisco, CA

Panelist Presentations:

Forecast-Informed Reservoir Operations on the Yuba River

Kaitlyn Chow
Water Operations Program Manager
Yuba Water Agency
Marysville, CA

Sites Project — Building California's Climate Toolbox

Ali Forsythe
Sites Reservoir: Sites Project Authority
Maxwell, CA

The Cosumnes Watershed: Sierra to Sea

Erik Ringelberg
Regional Vice President — California
The Freshwater Trust
Sacramento, CA

Environmental Defense Fund's Water Program

Mike Myatt
Senior Director
Climate Resilient Water Systems
Environmental Defense Fund
San Francisco, CA

Panel: San Joaquin Watershed

Moderator:

Ben Tustison, P.E., D.WRE
Principal Engineer
MBK Engineers
Sacramento, CA

Panelists:

Jay Ziegler
Delta Watermaster
State Water Resources Control Board
Sacramento, CA
Olivia Cramer
Water and Power Resource Planning Manager and Chief Hydrologist
Turlock Irrigation District
Turlock, CA
Caity Peterson
Associate Director
PPIC Water Policy Center
San Francisco, CA
Ajay Goyal
Manager
Technical Evaluations Branch
Division of Planning
Department of Water Resources
Sacramento, CA

Panelist Presentations:

Water Year 2026 May Be a Precursor of the Future — and that should worry ALL of us!

Jay Ziegler
Delta Watermaster
State Water Resources Control Board
Sacramento, CA

The Tuolumne Watershed

Olivia Cramer
Water and Power Resource Planning Manager and Chief Hydrologist
Turlock Irrigation District
Turlock, CA

San Joaquin Valley: Water Policy Context

Caity Peterson
Associate Director
PPIC Water Policy Center
San Francisco, CA

From Studies to Action: San Joaquin Basin Flood-MAR

Ajay Goyal
Manager
Technical Evaluations Branch
Division of Planning
Department of Water Resources
Sacramento, CA


2026 Sponsors

Center for Watershed Sciences
WEST Consultants, Inc.
HDR
MBK Engineers
Schaaf and Wheeler
Wood Rodgers
PCWA
Larson Wurzel & Associates, Inc.
NHC - Northwest Hydraulic Consultants

CEPSYM is a Floodplain Management Association project