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California’s Environment Needs a Water Budget

By Jeffrey Mount, Brian Gray

Giving the environment its own water budget would help protect species and ecosystems, and foster cooperation over water allocation during droughts.

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.

blog post

A Water Budget for the Environment

By Jeffrey Mount

California’s freshwater ecosystems are in decline and becoming increasingly vulnerable to drought. Allocating water budgets for the environment would help.

Report

Storing Water for the Environment

By Sarah Null, Jeffrey Mount, Brian Gray, Kristen Dybala ...

Large reservoirs are essential for managing water in California’s highly variable climate—but over the years, the construction and operation of these reservoirs have had significant environmental costs. Our new research outlines how reservoir operations could be changed to improve the health of the state’s fragile freshwater ecosystems.

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.

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