According to a study, various parts of the state have levels of arsenic in drinking water at higher than 5 micrograms per liter.

Founded in 1926 and headquartered in San Jose, California, Cal Water serves approximately 2 million people through 480,300 service connections in California.

Officials are shoring up water systems infiltrated by the golden mussel. Dogs and human inspectors are checking boats at some lakes, but a patchwork of oversight leaves many lakes unprotected ...

The trucks (and the volunteers inside them) were on a time-sensitive mission: refilling artificial water sources in the California desert for parched bighorn sheep.

This story was originally published by CalMatters. Sign up for their newsletters. One of the state’s best investigators was on the hunt for golden mussels — a dangerous new invader in ...

The California High-Speed Rail project, long beset by rising costs, delays, and political conflict, revealed a new plan led by its recently appointed CEO, Ian Choudri, that relies on $1 billion in ...

Following the Pearl Harbor attack in December 1941, Japan devised a bold plan to invade the U.S. mainland via the West Coast. A fleet of 12 advanced submarines—each armed with torpedoes, deck ...

A budget deficit prompted state lawmakers to trim — but not eliminate — funding for a pilot program that will pay for air conditioning and insulation at ...

The Trump Administration’s Department of Justice has sued the State of California over Propositions 12 and 2, alleging that the state laws, which ban the in-state sale of pork, eggs, and veal from ...

Five years ago, UC approved a plan to lock in tuition rates for each undergraduate cohort through 2026. The plan may allow greater tuition increases if it's renewed this fall.

Walters: California agriculture industry spars over converting land to solar farms Increasingly sharp internal debate focuses on what should happen as the acreage devoted to crops and livestock ...

Fresno faces severe flooding threats due to climate change. Learn how regional water recharge and floodwater storage can address groundwater issues.