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Commentary: Californians Need to Do More to Prepare for Wet Years

By Letitia Grenier, Ellen Hanak

Climate change is supercharging the extremes of drought and flood in California. But our infrastructure and institutions remain woefully underprepared for rising flood risk and increasingly erratic rainfall. It’s time to take this threat—and this opportunity—seriously and accelerate preparations.

blog post

A Look Back at 2023’s Volatile Year in Water

By Letitia Grenier

Volatility was the name of the game in 2023, as drought-weary California suddenly found itself inundated by atmospheric rivers—and the changes kept coming. We look back on California’s weird (and sometimes wonderful) year in water.

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PPIC Sacramento Valley GSP Supply and Demand Projects

This spreadsheet includes project and management actions data collected from 16 groundwater sustainability plans (GSPs) from the 16 Sacramento Valley groundwater basins, submitted to the Department of Water Resources in January 2022.

blog post

Addressing Groundwater Overdraft in the Sacramento Valley

By Spencer Cole, Kyle Greenspan, Andrew Ayres

As the Sacramento Valley seeks to bring its groundwater basins into balance under SGMA, the valley’s groundwater sustainability agencies recently submitted plans to manage overdraft. Do the numbers add up? Our researchers take a look.

blog post

New Progress in California Water Rights Reform

By Sarah Bardeen

Many have argued that California’s water rights laws are sorely in need of modernization. Is recent legislation taking a step in that direction? We spoke with two legal experts to find out.

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Stewarding California’s Wet Years

California has made great strides in preparing for a drier, hotter future, but it remains a challenge to harness the bounty of wet years while also reducing flood risk. How did California’s water sector manage the unusually wet conditions of the 2023 water year—and what lessons can we glean for the future? We speak with three panels of experts to find out.

blog post

Measuring Groundwater Overdraft in the Sacramento Valley

By Spencer Cole, Kyle Greenspan, Andrew Ayres

As the Sacramento Valley works to bring its groundwater basins into balance, we review the valley’s groundwater sustainability plans to understand how they’re estimating overdraft in their basins—and to see just how much overpumping they found.

data set

PPIC Sacramento Valley GSP Water Budgets

This spreadsheet includes water budget data collected from 16 groundwater sustainability plans from the 16 Sacramento Valley groundwater basins, submitted to the Department of Water Resources in January 2022.

Report

Priorities for California’s Water

By Jeffrey Mount, Letitia Grenier, Ellen Hanak, Caitlin Peterson ...

California has made great strides in preparing for a drier, hotter future, but it remains a challenge to harness the bounty of wet years while also reducing flood risk. How did California’s water sector manage the unusually wet 2023 water year—and what lessons can we glean for the future?

blog post

Navigating the Hope (and Hype) around Solar Canals

By Sarah Bardeen, Gokce Sencan

Placing solar panels over canals is attracting attention in California. But will solar canals live up to the hype—and will they work in California? Turlock Irrigation District’s general manager, Michelle Reimers, tells us about a new pilot project that could answer some of these questions.

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