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In California, a state that considers itself among the most advanced nations in the world, nearly 2 million people live without safe drinking water. These Californians reside in 300 small, sometimes remote, but always impoverished communities where the state’s 2012 first-in-the-nation law guaranteeing a right to safe and affordable drinking water is but an empty promise. It will take every Californian to ensure clean water is available to all. Groundwater in these communities is contaminated by naturally occurring pollutants, such as arsenic, but more typically by agricultural runoff.

A 3.2-magnitude earthquake struck Tuesday morning near San Francisco Tuesday morning at 5:36 a.m. The earthquake, reported at 5:36 a.m., was recorded at a 4.9-kilometer depth, according to United States Geological Survey. The quake occurred right along the San Andreas Fault Line. The epicenter of the tremor was in the Pacific, about 6.8 miles from the Golden Gate Bridge, 9.9 miles from San Francisco and 6.8 miles from Tamalpais-Homestead Valley in Marin County.

California’s Sustainable Groundwater Management Act, passed in 2014, requires some 250 groundwater basins throughout the state to halt the overdraft in their aquifers. The big question for everyone is: Where will the water come from to do that? It could come from “high-magnitude flows” – flooding events, essentially, that occur from just a handful of storms every winter. Tiffany Kocis, a PhD student in hydrologic sciences at University of California, Davis, is the lead author of a new study that attempts to quantify these high flows.

A flurry of lawsuits over Gov. Jerry Brown’s Delta tunnels continued on Monday, with several Delta counties, farm groups and environmentalists joining the fray as expected. San Joaquin County invoked the draining of Owens Lake a century ago for urban Southern California, and the diversion of the San Joaquin River for agriculture, in support of its conclusion that the $17 billion tunnels would “devastate” the Delta.