Ian James

For the first time since 2006, California is opening a flood relief valve on the Kern River to ease pressure from the heavy Sierra snowmelt. The valve will divert floodwaters into the California Aqueduct for use in Southern California.

Seven states have agreed to cut water use to boost the Colorado River's depleted reservoirs, reaching a consensus after months of negotiations.

The proposition, which came after months of tense negotiations, lays out plans for water cuts in California, Arizona and Nevada through 2026.

LOS ANGELES — Monday’s historic Colorado River agreement represents a big win for California, which only months ago was embroiled in a bitter feud with Arizona, Nevada and four other

California, Arizona and Nevada's three-year agreement to cut use of Colorado River water, in a deal backed by federal funds, is only a temporary fix.

Climate change will push snow higher in California's Sierra Nevada by the second half of the century, bringing more winter rain and faster mountain runoff.

State auditors say California's Department of Water Resources is failing to adequately account for climate change in its water-supply forecasts.

As a Supreme Court ruling scales back federal water protections, a top California water regulator says the state will maintain stringent oversight of wetlands.

Months after Gov. Gavin Newsom promised rapid aid for undocumented victims of California's winter floods, eligible households could start seeing payments of up to $4,500.

Arizona will limit development in the Phoenix area after a study found the available groundwater isn't sufficient to meet long-term water demands.