Native American tribes are now contesting the Federal Energy Regulatory Commission’s relicensing of Oroville Dam—something they could not do when the dam was first licensed more than 60 years ago. That challenge adds another layer of legal uncertainty to a water regulatory system already running on borrowed time.

California’s water infrastructure has barely grown since the Oroville Dam was completed in nineteen sixty-eight. The state has added millions of people since then. Still, no comparable storage or conveyance projects have followed—Sites Reservoir, the one major new reservoir in decades, is still only about one million acre-feet in the best case. Population outran the plumbing (infrastructure), and the gap is why you have a miserable low-flow shower to start your day every day.

California faces a projected nine-million-acre-foot annual water gap by 2024, driven by weather changes, shrinking snowpack, and regulatory shifts. The new State Water Plan 2028 sets that as its first statewide target: roughly two Shasta Reservoirs of supply to replace.

On top of all that, the Colorado River is tightening. Under the Trump administration’s twenty twenty-seven and twenty twenty-eight operating plan, California must cut four hundred forty thousand acre-feet a year—about twelve percent of its allotment—while Arizona and Nevada take deeper reductions.

Reservoirs are at record lows, and the federal Bureau of Reclamation controls the taps. Meanwhile, the Sustainable Groundwater Management Act is ending the era of unlimited pumping in the Central Valley. Local agencies are now imposing limits and fees; some farmers are already leaving fields dry, and up to 900,000 acres may eventually go fallow.

The Delta tunnels remain unfinished. The Delta Conveyance Project has cleared some federal biological reviews but still faces court fights, financing questions, and water-rights decisions. Construction is unlikely before twenty twenty-nine at the earliest.

All of this leaves California’s water system dependent on federal support. The state cannot balance its own books without Bureau of Reclamation operations, Colorado River agreements, and federal actions by EPA, NOAA, National Marine Fisheries, and collaboration with Federal Indian Tribes on treaty-level land and water rights.

Sacramento is effectively waiting on Washington—and on Trump—to keep the system from breaking, and without cooperation, the system will cease to function.