From
“California’s water management is a complex stew with many cooks. At the local level, hundreds of irrigation districts and urban water agencies and a few thousand small drinking water suppliers are responsible for a wide variety of water-related issues. And it just got more complex: as of June 30, more than 250 newly formed Groundwater Sustainability Agencies (GSAs) were added to the mix.
The 2014 Sustainable Groundwater Management Act (SGMA) directed local agencies to develop institutions, plans, and implementation strategies to sustainably manage their groundwater resources for the long run. As a result, more than 250 local agencies have formed GSAs in 140 “priority basins” (those that account for most of California’s groundwater use). More than 70 percent of the new GSAs are in the San Joaquin Valley and the Sacramento Valley—regions whose large groundwater basins supply farms, cities, and small rural communities. … “